RWTH Aachen University Lehrstuhl für Strömungslehre und Aerodynamisches Institut

Ruhr-Universität Bochum Lehrstuhl für Theoretische Chemie

Contact

vanessa.angenent@rub.de

Publications

  • Influence of biomass torrefaction parameters on fast pyrolysis products under flame-equivalent conditions, Biomass and Bioenergy, 119: 392-410, 2018.

  • Computational Chemistry as a Tool for Predictive Combustion Modelling, 14th International Conference on Sustainable Development of Energy, Water and Environment Systems, Dubrovnik, Croatia, 2019.

  • Adsorption und Diffusion bei der Oxyfuel-Verbrennung von Festbrennstoffen: Vergleich von Experiment und MD-Simulation, 29. Deutscher Flammentag, 2019.

  • Adsorption and diffusion in oxyfuel combustion – Linking experiment and MD simulation through graphite structures as a first example, Diffusion Fundamentals 8, 2019.

  • Angenent, V., Oelert, D. and Schmid, R.In silico design of atomistic char models of curved stacked carbon layers, 11th Mediterranean Combustion Symposium, 2019.

Projects

RWTH Aachen University Lehrstuhl für Wärme- und Stoffübertragung

Contact

askarizadeh@wsa.rwth-aachen.de

Publications

  • Askarizadeh, H., Zabrodiec, D., Maßmeyer, A., Kreitzberg, T. and Kneer, R.Numerical simulation of swirl oxy-coal combustion in a 60 kW Test Facility using the SST k-ω turbulence model, 3rd International Workshop on Oxy-Fuel Combustion, 2020.

  • Askarizadeh, H., Nicolai, H., Zabrodiec, D., Pielsticker, S., Hasse, C., Kneer, R. and Maßmeyer, A.Numerische Untersuchung zur Relevanz von Teilmodellen für Pyrolyse und Koksabbrand in turbulenten drallbehafteten Flammen unter Oxyfuel-Bedingungen, 30. Deutscher Flammentag, Hannover, Germany, 2021.

  • Askarizadeh, H., Lotfollahzadeh, A., Wolfersdorf, C., Pielsticker, S. and Kneer, R.Modeling of a Pilot Plant for Entrained Flow Gasification of Fuel Mixtures Containing Sewage Sludge, 13th European Conference on Industrial Furnaces and Boilers, 2022.

Projects

Technische Universität Darmstadt Simulation of reactive Thermo-Fluid Systems

Contact

berkel@stfs.tu-darmstadt.de

Publications

  • Berkel, L., Debiagi, P., Stagni, A., Nicolai, H., Hasse, C. and Faravelli, T.Fluidized bed reactor modelling using multiphase reactor networks, 44th Meeting of The Italian Section of The Combustion Institute, 2022.

Projects

Technische Universität Darmstadt Energie- und Kraftwerkstechnik

Contact

boehm@rsm.tu-darmstadt.de

Publications

  • Köser, J., Becker, L., Vorobiev, N., Schiemann, M., Scherer, V., Böhm, B. and Dreizler, A.Characterization of single coal particle combustion within oxygen-enriched environments using high-speed OH-PLIF, Applied Physics B, 121 (4): 459-464, 2015.

  • Köser, J., Becker, L., Goßmann, A-K., Böhm, B. and Dreizler, A.Investigation of ignition and volatile combustion of single coal particles within oxygen-enriched atmospheres using high-speed OH-PLIF, Proceedings of the Combustion Institute, 36 (2): 2103-2111, 2017.

  • Becker, L., Kosaka, H., Böhm, B., Doost, S., Knappstein, R., Habermehl, M., Kneer, R., Janicka, J. and Dreizler, A.Experimental investigation of flame stabilization inside the quarl of an oxyfuel swirl burner, Fuel, 201: 124-135, 2017.

  • Weinkauff, J., Greifenstein, M., Dreizler, A. and Böhm, B.Time resolved three-dimensional flamebase imaging of a lifted jet flame by laser scanning, Measurement Science and Technology, 26 (10): 105201, 2015.

  • Köser, J., Knappstein, R., Goßmann, A-K., Becker, L., Böhm, B., Janicka, J. and Dreizler, A.An Experimental and Numerical Study of Volatile Combustion of Single Coal Particles in an Oxygen Enriched Atmosphere, 32nd Annual International Pittsburgh Coal Conference, Pittsburgh, Pennsylvania, USA, 2015.

  • Becker, L., von Langenthal, T., Pielsticker, S., Böhm, B., Kneer, R. and Dreizler, A.Experimental investigation of particle-laden flows in an oxy-coal combustion chamber for non-reacting conditions, Fuel, 235: 753-762, 2019.

  • Köser, J., Li, T., Vorobiev, N., Dreizler, A., Schiemann, M. and Böhm, B.Multi-parameter diagnostics for high-resolution in-situ measurements of single coal particle combustion, Proceedings of the Combustion Institute, 37 (3): 2893-2900, 2019.

  • Pareja, J., Johchi, A., Li, T., Dreizler, A. and Böhm, B.A study of the spatial and temporal evolution of auto-ignition kernels using time-resolved tomographic OH-LIF, Proceedings of the Combustion Institute, 37 (2): 1321-1328, 2019.

  • Li, T., Pareja, J., Fuest, F., Schütte, M., Zhou, Y., Dreizler, A. and Böhm, B.Tomographic imaging of OH laser-induced fluorescence in laminar and turbulent jet flames, Measurement Science and Technology, 29 (1): 015206, 2018.

  • Li, T., Pareja, J., Becker, L., Heddrich, W., Dreizler, A. and Böhm, B.Quasi-4D laser diagnostics using an acousto-optic deflector scanning system, Applied Physics B, 123 (3): 1243, 2017.

  • Schneider, H., Becker, L., Pielsticker, S., Böhm, B., Kneer, R. and Dreizler, A.Experimental investigation and comparison of particle-laden flows in a gas-assisted oxycoal combustion chamber for reacting and non-reacting conditions, 9th European Combustion Meeting, 2019.

  • Li, T., Köser, J., Schiemann, M., Dreizler, A. and Böhm, B.Untersuchungen der Verbrennung von Einzelpartikeln und Partikelgruppen mit zeitaufgelöster volumetrischer Messung des OH-Radikals, 29. Deutscher Flammentag, 2019.

  • Li, T., Köser, J., Dreizler, A., Schiemann, M. and Böhm, B.Time-resolved volumetric measurement of OH radicals on single particle and particle group combustion, 14th International Conference on Sustainable Development of Energy, Water and Environment Systems, 2019.

  • Becker, L., Pielsticker, S., Böhm, B., Kneer, R. and Dreizler, A.Particle dynamics in a gas assisted coal combustion chamber using advanced laser diagnostics, Fuel, 269: 117188, 2020.

  • Attili, A., Farmand, P., Schumann, C., Farazi, S., Böhm, B., Li, T., Geschwindner, C., Köser, J., Dreizler, A. and Pitsch, H.Numerical Simulations and Experiments of Ignition of Solid Particles in a Laminar Burner: Effects of Slip Velocity and Particle Swelling, Flow, Turbulence and Combustion, 2020.

  • Schneider, H., Valentiner, S., Vorobiev, N., Böhm, B., Schiemann, M., Scherer, V., Kneer, R. and Dreizler, A.Investigation on flow dynamics and temperatures of solid fuel particles in a gas-assisted oxy-fuel combustion chamber, Fuel, 286: 119424, 2021.

  • Schneider, H., Böhm, B., Kneer, R. and Dreizler, A.B4 – Visualization and analysis of solid fuel particle tracectories in a gas-assisted oxy-fuel combustion chamber, 3rd International Workshop on Oxy-Fuel Combustion, 2020.

  • Li, T., Schiemann, M., Köser, J., Dreizler, A. and Böhm, B.Experimental investigations of single particle and particle group combustion in a laminar flow reactor using simultaneous volumetric OH-LIF imaging and diffuse backlight-illumination, Renewable and Sustainable Energy Reviews, 136: 110377, 2021.

  • Li, T., Geschwindner, C., Köser, J., Schiemann, M., Dreizler, A. and Böhm, B.Investigation of the transition from single to group coal particle combustion using high-speed scanning OH-LIF and diffuse backlight-illumination, Proceedings of the Combustion Institute, 2020.

  • Li, T., Zhou, Bo, Frank, J. H., Dreizler, A. and Böhm, B.High-speed volumetric imaging of formaldehyde in a lifted turbulent jet flame using an acousto-optic deflector, Experiments in Fluids, 61 (4): 2903, 2020.

  • Nicolai, H., Li, T., Geschwindner, C., di Mare, F., Hasse, C., Böhm, B. and Janicka, J.Numerical investigation of pulverized coal particle group combustion using tabulated chemistry, Proceedings of the Combustion Institute, 2020.

  • Zhou, Bo, Li, T., Frank, J. H., Dreizler, A. and Böhm, B.Simultaneous 10 kHz three-dimensional CH2O and tomographic PIV measurements in a lifted partially-premixed jet flame, Proceedings of the Combustion Institute, 2020.

  • Johchi, A., Pareja, J., Böhm, B. and Dreizler, A.Quantitative mixture fraction imaging of a synthetic biogas turbulent jet propagating into a NO-vitiated air co-flow using planar laser-induced fluorescence (PLIF), Experiments in Fluids, 60 (5): 60, 2019.

  • Meißner, C., Schneider, H., Sidiropoulos, E., Hölzer, J. I., Heckmann, T., Böhm, B., Dreizler, A. and Seeger, T.Investigation on wall and gas temperatures inside a swirled oxy-fuel combustion chamber using thermographic phosphors, O2 rotational and vibrational CARS, Fuel, 289: 119787, 2021.

  • Emmert, J., Schneider, H., Meißner, C., Sidiropoulos, E., Hölzer, J. I., Seeger, T., Böhm, B., Dreizler, A. and Wagner, S.Characterization of temperature distributions in a swirled oxy-fuel coal combustor using tomographic absorption spectroscopy with fluctuation modelling, Applications in Energy and Combustion Science, 6: 100025, 2021.

  • Li, T., Farmand, P., Geschwindner, C., Greifenstein, M., Köser, J., Schumann, C., Attili, A., Pitsch, H., Dreizler, A. and Böhm, B.Homogeneous ignition and volatile combustion of single solid fuel particles in air and oxy-fuel conditions, Fuel, 291, 2021.

  • Farmand, P., Nicolai, H., Schumann, C., Attili, A., Berger, L., Li, T., Geschwindner, C., di Mare, F., Hasse, C., Böhm, B., Janicka, J. and Pitsch, H.Numerical investigation and assessment of flamelet-based models for the prediction of pulverized solid fuel homogeneous ignition and combustion, Combustion and Flame, 235: 111693, 2022.

  • Tarlinski, D., Geschwindner, C., Li, T., Böhm, B. and Schiemann, M.Optische Charakterisierung der volatilen Flamme in Partikelsträhnen in Abhängigkeit von der Partikelanzahldichte, 30. Deutscher Flammentag, 2021.

  • Li, T., Geschwindner, C., Dreizler, A. and Böhm, B.An experimental study of coal particle group combustion in conventional and oxy-fuel atmospheres using multi-parameter optical diagnostics, Proceedings of the Combustion Institute, 2022.

  • Li, T., Li, Bo, Farmand, P., Dreizler, A., Pitsch, H. and Böhm, B.Motion and swelling of single coal particles during volatile combustion in a laminar flow reactor, Proceedings of the Combustion Institute, 2022.

  • Geschwindner, C., Westrup, K., Li, T., Dreizler, A. and Böhm, B.Experimentelle Untersuchung der Interaktion von Biomasse mit einem turbulenten plasmabeheizten Oxidatorgasstrom, 30. Deutscher Flammentag, Hannover, Germany, 2021.

Projects

Technische Universität Darmstadt Reaktive Strömungen und Messtechnik

RWTH Aachen University Dezernat 4.0 - Technologietransfer, Forschungsförderung und Karriereentwicklung

Ruhr-Universität Bochum Lehrstuhl für Technische Chemie

Contact

Jannik.boettger@ruhr-uni-bochum.de

Publications

  • Eckhard, T., Pflieger, C., Schmidt, S., Böttger, J., Senneca, O., Schiemann, M., Scherer, V., Muhler, M. and Cerciello, F.Catalytic effects for cellulose-based model fuels under low and high heating rate in air and oxy-fuel atmosphere, Fuel, 324: 124437, 2022.

  • Pflieger, C., Eckhard, T., Böttger, J., Cerciello, F. and Muhler, M.Catalytic influence of minerals on cellulose-based model fuels and model chars in oxidation and gasification, 30. Deutscher Flammentag, 2021.

  • Böttger, J., Eckhard, T., Pflieger, C., Senneca, O., Muhler, M. and Cerciello, F.Green coal substitutes for boilers through hydrothermal carbonization of biomass, 13th European Conference on Industrial Furnaces and Boilers, 2022.

  • Böttger, J., Eckhard, T., Pflieger, C., Muhler, M. and Cerciello, F.Hydrothermal carbonization of biomass: influence of cellulose, hemicellulose and lignin, 23rd edition of the International Conference on Analytical and Applied Pyrolysis, 2022.

  • Eckhard, T., Pflieger, C., Russo, C., Böttger, J., Senneca, O., Apicella, B., Schiemann, M., Scherer, V., Muhler, M. and Cerciello, F.Mineral effects on chemical and physical transformations of cellulose-based model fuels in N2 and CO2 atmospheres, 23rd edition of the International Conference on Analytical and Applied Pyrolysis, 2022.

  • Eckhard, T., Pflieger, C., Russo, C., Böttger, J., Senneca, O., Apicella, B., Schiemann, M., Scherer, V., Muhler, M. and Cerciello, F.Mineral effects on chemical and physical transformations of cellulose-based model fuels in N2 and CO2 atmospheres, 13th European Conference on Industrial Furnaces and Boilers, 2022.

  • Pflieger, C., Eckhard, T., Böttger, J., Telaar, P., Schulwitz, J., Schmidt, S., Cerciello, F. and Muhler, M.The catalytic effect of iron on the oxidation of cellulose-derived chars, 55. Jahrestreffen Deutscher Katalytiker, 2022.

Projects

Ruhr-Universität Bochum Technische Chemie

Contact

Francesca.Cerciello@ruhr-uni-bochum.de

Publications

  • Apicella, B., Senneca, O., Russo, C., Heuer, S., Cortese, L., Cerciello, F., Scherer, V., Schiemann, M. and Ciajolo, A.Separation and characterization of carbonaceous particulate (soot and char) produced from fast pyrolysis of coal in inert and CO2 atmospheres, Fuel, 201: 118-123, 2017. doi 

  • Apicella, B., Russo, C., Ciajolo, A., Cortese, L., Cerciello, F., Stanzione, F., Wütscher, A., Muhler, M. and Senneca, O.High temperature pyrolysis of lignite and synthetic carbons, Fuel, 241: 264-272, 2019.

  • Cerciello, F., Cortese, L., Heuer, S., Scherer, V., Schiemann, M. and Senneca, O.Effect of CO2 on chars produced from coal and biomass at high heating rates, 39th Meeting of the Italian Section of the Combustion Institute, Naples, Italy, 2016.

  • Cerciello, F., Cortese, L., Heuer, S., Scherer, V., Schiemann, M. and Senneca, O.Effect of CO2 on coal pyrolysis at high and low heating rates on char reactivity, 39th Meeting of the Italian Section of the Combustion Institute, Naples, Italy, 2016.

  • Graeser, P., Wütscher, A., Cerciello, F., Muhler, M. and Schiemann, M.Emissivity Comparison between Chars and Demineralized Coal Chars under Oxycombustion Conditions, Chemical Engineering & Technology, 41 (7): 1490-1496, 2018.

  • Krusch, S., Scherer, V., Solimene, R., Ruoppolo, G., Cerciello, F., Pielsticker, S., Kneer, R., Schlögel, K. U. and Senneca, O.Comparison of different diagnostic techniques for the assessment of coal pyrolysis rate, Joint Meeting the German and Italian Sections of the Combustion Institute, 2018.

  • Pielsticker, S., Heuer, S., Senneca, O., Cerciello, F., Salatino, P., Cortese, L., Gövert, B., Hatzfeld, O., Schiemann, M., Scherer, V. and Kneer, R.Comparison of pyrolysis test rigs for oxy-fuel conditions, Fuel Processing Technology, 156: 461-472, 2017. doi 

  • Pielsticker, S., Senneca, O., Kreitzberg, T., Cerciello, F., Hatzfeld, O. and Kneer, R.Comparability and validity range of pyrolysis kinetics from Chinese coals obtained with different experimental setups, 9th International Symposium on Coal Combustion, 2019.

  • Senneca, O., Cerciello, F., Heuer, S. and Ammendola, P.Slow pyrolysis of walnut shells in nitrogen and carbon dioxide, Fuel, 225: 419-425, 2018.

  • Senneca, O., Cerciello, F., Heuer, S. and Ammendola, P.Slow pyrolysis of walnut shells in nitrogen and carbon dioxide, 10th Mediterranean Combustion Symposium, Naples, Italy, 2017.

  • Senneca, O., Cerciello, F., Cortese, L., Heuer, S., Schiemann, M. and Scherer, V.Effects of oxy-fuel conditions on walnut shells pyrolysis in a drop tube reactor, 10th Mediterranean Combustion Symposium, Naples, Italy, 2017.

  • Senneca, O, Cerciello, F, Cortese, L, Heuer, S, Schiemann, M and Scherer, VEffects of CO2 enriched atmosphere on chars from walnut shells pyrolysis in a drop tube reactor, Fuel, 229: 235-240, 2018. doi 

  • Senneca, O., Apicella, B., Russo, C., Cerciello, F., Salatino, P., Heuer, S., Wütscher, A., Schiemann, M., Muhler, M. and Scherer, V.Pyrolysis and Thermal Annealing of Coal and Biomass in CO2-Rich Atmospheres, Energy & Fuels, 32 (10): 10701-10708, 2018.

  • Senneca, O., Vorobiev, N., Wütscher, A., Cerciello, F., Heuer, S., Wedler, C., Span, R., Schiemann, M., Muhler, M. and Scherer, V.Assessment of combustion rates of coal chars for oxy-combustion applications, 2nd International Workshop on Oxy-fuel Combustion, Bochum, Germany, 2018.

  • Senneca, O., Vorobiev, N., Wütscher, A., Cerciello, F., Heuer, S., Wedler, C., Span, R., Schiemann, M., Muhler, M. and Scherer, V.Assessment of combustion rates of coal chars for oxy-combustion applications, Fuel, 238: 173-185, 2019.

  • Senneca, O., Ontyd, C., Cerciello, F., Schiemann, M. and Scherer, V.Extension of the Thermal Annealing Concepts developed for coal combustion to conversion of lignocellulosic biomass, Energy & Fuels, 34 (3): 3661-3670, 2020.

  • Senneca, O., Cerciello, F., Russo, C., Wütscher, A., Muhler, M. and Apicella, B.Thermal treatment of lignin, cellulose and hemicellulose in nitrogen and carbon dioxide, Fuel, 271: 117656, 2020.

  • Cerciello, F., Apicella, B., Russo, C., Cortese, L. and Senneca, O.Effects of pressure on lignocellulosic biomass fast pyrolysis in nitrogen and carbon dioxide, Fuel: 119604, 2020.

  • Eckhard, T., Pflieger, C., Schmidt, S., Böttger, J., Senneca, O., Schiemann, M., Scherer, V., Muhler, M. and Cerciello, F.Catalytic effects for cellulose-based model fuels under low and high heating rate in air and oxy-fuel atmosphere, Fuel, 324: 124437, 2022.

  • Pflieger, C., Eckhard, T., Böttger, J., Cerciello, F. and Muhler, M.Catalytic influence of minerals on cellulose-based model fuels and model chars in oxidation and gasification, 30. Deutscher Flammentag, 2021.

  • Böttger, J., Eckhard, T., Pflieger, C., Senneca, O., Muhler, M. and Cerciello, F.Green coal substitutes for boilers through hydrothermal carbonization of biomass, 13th European Conference on Industrial Furnaces and Boilers, 2022.

  • Böttger, J., Eckhard, T., Pflieger, C., Muhler, M. and Cerciello, F.Hydrothermal carbonization of biomass: influence of cellulose, hemicellulose and lignin, 23rd edition of the International Conference on Analytical and Applied Pyrolysis, 2022.

  • Eckhard, T., Pflieger, C., Russo, C., Böttger, J., Senneca, O., Apicella, B., Schiemann, M., Scherer, V., Muhler, M. and Cerciello, F.Mineral effects on chemical and physical transformations of cellulose-based model fuels in N2 and CO2 atmospheres, 23rd edition of the International Conference on Analytical and Applied Pyrolysis, 2022.

  • Eckhard, T., Pflieger, C., Russo, C., Böttger, J., Senneca, O., Apicella, B., Schiemann, M., Scherer, V., Muhler, M. and Cerciello, F.Mineral effects on chemical and physical transformations of cellulose-based model fuels in N2 and CO2 atmospheres, 13th European Conference on Industrial Furnaces and Boilers, 2022.

  • Pflieger, C., Eckhard, T., Böttger, J., Telaar, P., Schulwitz, J., Schmidt, S., Cerciello, F. and Muhler, M.The catalytic effect of iron on the oxidation of cellulose-derived chars, 55. Jahrestreffen Deutscher Katalytiker, 2022.

Projects

RWTH Aachen University Institut für Technische Verbrennung

Contact

b.chen@itv.rwth-aachen.de

Publications

  • Chen, B., Kruse, S., Schmid, R., Cai, L., Hansen, N. and Pitsch, H.Oxygenated PAH formation chemistry investigation in anisole jet stirred reactor oxidation by a thermodynamic approach, 3rd International Workshop on Oxy-Fuel Combustion, 2020.

  • Chen, B., Ilies, B. D., Chen, W., Xu, Q., Li, Y., Xing, L., Yang, J., Wei, L., Hansen, N., Pitsch, H., Sarathy, S. M. and Wang, Z.Exploring low temperature oxidation of 1-butene in jet-stirred reactors, Combustion and Flame, 222: 259-271, 2020.

  • Liu, P., Chen, B., Li, Z., Bennett, A., Sioud, S., Pitsch, H., Sarathy, S. M. and Roberts, W. L.Experimental and theoretical evidence for the temperature-determined evolution of PAH functional groups, Proceedings of the Combustion Institute, 2020.

  • Chen, B., Kruse, S., Schmid, R., Cai, L., Hansen, N. and Pitsch, H.Oxygenated PAH Formation Chemistry Investigation in Anisole Jet Stirred Reactor Oxidation by a Thermodynamic Approach, Energy & Fuels, 35 (2), 2021.

  • Chen, B., Hellmuth, M., Faller, S., May, L., Liu, P., Cai, L., Roberts, W. L. and Pitsch, H.Exploring the combustion chemistry of anisole in laminar counterflow diffusion-flames under oxy-fuel conditions, Combustion and Flame: 111929, 2021.

Projects

Technische Universität Darmstadt Simulation of reactive Thermo-Fluid Systems

Contact

debiagi@stfs.tu-darmstadt.de

Publications

  • Debiagi, P., Ontyd, C., Heuer, S., Pielsticker, S., Schiemann, M., Faravelli, T., Kneer, R., Scherer, V. and Hasse, C.Solid Fuel Kinetics for Oxy-Fuel conditions, 29. Deutscher Flammentag, 2019.

  • Debiagi, P., Heuer, S., Ontyd, C., Schiemann, M., Faravelli, T., Hasse, C. and Scherer, V.Differences in Formation and Oxidation Of Colombian Coal Chars in Air and Oxy-Fuel Atmospheres, Chemical Engineering Transactions, 74: 151-156, 2019.

  • Debiagi, P., Yildiz, C., Ströhle, J., Epple, B., Faravelli, T. and Hasse, C.Validation of a comprehensive kinetic mechanism for sulfur release during pyrolysis of solid fuels, 9th International Symposium on Coal Combustion, Qingdao, China, 2019.

  • Wen, Xu, Debiagi, P., Stein, O. T., Kronenburg, A., Kempf, A. M. and Hasse, C.Flamelet tabulation methods for solid fuel combustion with fuel-bound nitrogen, Combustion and Flame, 209: 155-166, 2019.

  • Debiagi, P., Nicolai, H., Han, W., Janicka, J. and Hasse, C.Towards predictive CFD simulations of coal combustion – using Machine Learning for efficient representation of solid fuel kinetics, 9th International Symposium on Coal Combustion, 2019.

  • Debiagi, P., Ontyd, C., Pielsticker, S., Schiemann, M., Faravelli, T., Kneer, R., Hasse, C. and Scherer, V.Calibration and Validation of a Comprehensive Kinetic Model of Coal Conversion in Inert, Air and Oxy-Fuel Conditions Using Data from Multiple Test Rigs, Fuel: (accepted), 2020.

  • Pflieger, C., Lotz, K., Hilse, N., Berger, C. M., Schiemann, M., Debiagi, P., Hasse, C., Scherer, V., Muhler, M. and Debiagi, P.Catalytic Influence of Mineral Compounds on the Reactivity of Cellulose-Derived Char in O2-, CO2-, and H2O-Containing Atmospheres, Fuel, 2020.

  • Debiagi, P., Yildiz, C., Richter, M., Ströhle, J., Epple, B., Faravelli, T. and Hasse, C.Experimental and modeling assessment of sulfur release from coal under low and high heating rates, Proceedings of the Combustion Institute, 2020.

  • Debiagi, P., Yildiz, C., Ströhle, J., Epple, B., Faravelli, T. and Hasse, C.Systematic evaluation and kinetic modeling of low heating rate sulfur release in pyrolysis and oxidation in various atmospheres, 3rd International Workshop on Oxy-Fuel Combustion, Montabaur, Germany, 2020.

  • Can small polyaromatics describe their larger counterparts for local reactions? A computational study on the H-abstraction reaction by an H-atom from polyaromatics, The Journal of Physical Chemistry A, 2020.

  • Debiagi, P., Faravelli, T., Hasse, C. and Ranzi, E.Kinetic Modeling of Solid, Liquid and Gas Biofuel Formation from Biomass Pyrolysis, Production of Biofuels and Chemicals, 31-76, SPRINGER NATURE, Singapore, 2020.

  • Debiagi, P., Locaspi, A., Hasse, C. and Faravelli, T.A fundamental model of char oxidation, Fuels, Processes, and Combustion Physics in the Energy Transformation, 2020.

  • Debiagi, P., Nicolai, H., Han, W., Janicka, J. and Hasse, C.Machine learning for predictive coal combustion CFD simulations—From detailed kinetics to HDMR Reduced-Order models, Fuel, 274: 117720, 2020.

  • Özer, B., Debiagi, P., Hasse, C., Faravelli, T. and Kazanç, F.An experimental and numerical study on the combustion of lignites from different geographic origins, Fuel, 278: 118320, 2020.

  • Shamooni, A., Debiagi, P., Wang, B., Stein, O. T., Kronenburg, A., Stagni, A., Frassoldati, A., Faravelli, T., Kempf, A. M. and Hasse, C.Carrier-phase DNS of NOx formation in pulverized coal flames with fuel-bound nitrogen, 3rd International Workshop on Oxy-Fuel Combustion, 2020.

  • Wen, Xu, Debiagi, P. and Hasse, C.Flamelet tabulation methods for SOx formation in pulverized solid fuel combustion, Combustion and Flame, 218: 150-167, 2020.

  • Debiagi, P., Ranzi, E., Faravelli, T. and Hasse, C.Coal Combustion: Integrating Nitrogen and Sulfur Fraction in a Single Kinetic Mechanism, 1st International Conference on Smart Energy Carriers, 2019.

  • Shamooni, A., Debiagi, P., Wang, B., Luu, T. D., Stein, O. T., Kronenburg, A., Bagheri, G., Stagni, A., Frassoldati, A., Faravelli, T., Kempf, A. M., Wen, Xu and Hasse, C.Carrier-phase DNS of detailed NOx formation in early-stage pulverized coal combustion with fuel-bound nitrogen, Fuel: (accepted), 2020.

  • Trespi, S., Nicolai, H., Debiagi, P., Janicka, J., Dreizler, A., Hasse, C. and Faravelli, T.Development and application of an efficient chemical reactor network model for oxy-fuel combustion, Energy & Fuels: (accepted), 2020.

  • Locaspi, A., Debiagi, P., Pelucchi, M., Hasse, C. and Faravelli, T.A Predictive Physico-chemical Model of Biochar Oxidation, Energy & Fuels, 35 (18): 14894-14912, 2021.

  • Hasse, C., Debiagi, P., Wen, Xu, Hildebrandt, K., Vascellari, M. and Faravelli, T.Advanced modeling approaches for CFD simulations of coal combustion and gasification, Progress in Energy and Combustion Science, 86: 100938, 2021.

  • Gao, Xi, Lu, L., Shahnam, M., Rogers, W. A., Smith, K., Gaston, K., Robichaud, D., Brennan Pecha, M., Crowley, M., Ciesielski, P. N., Debiagi, P., Faravelli, T., Wiggins, G., Finney, C. E.A. and Parks, J. E.Assessment of a detailed biomass pyrolysis kinetic scheme in multiscale simulations of a single-particle pyrolyzer and a pilot-scale entrained flow pyrolyzer, Chemical Engineering Journal, 418: 129347, 2021.

  • Wen, Xu, Stein, O. T., Debiagi, P., Scholtissek, A., Kronenburg, A., Kempf, A. M. and Hasse, C.Detailed simulations for flamelet modelling of SOx formation from coal, PAMM, 19 (1), 2019.

  • Afessa, M. M., Debiagi, P., Ferreiro, A. I., Mendes, M. A.A., Faravelli, T. and Ramayya, A.VenkataExperimental and modeling investigation on pyrolysis of agricultural biomass residues: Khat stem and coffee husk for bio-oil application, Journal of Analytical and Applied Pyrolysis, 162: 105435, 2022.

  • Nicolai, H., Debiagi, P., Wen, Xu, Dressler, L., Maßmeyer, A., Janicka, J. and Hasse, C.Flamelet LES of swirl-stabilized oxy-fuel flames using directly coupled multi-step solid fuel kinetics, Combustion and Flame, 241: 112062, 2022.

  • Berkel, L., Debiagi, P., Stagni, A., Nicolai, H., Hasse, C. and Faravelli, T.Fluidized bed reactor modelling using multiphase reactor networks, 44th Meeting of The Italian Section of The Combustion Institute, 2022.

  • Wang, B., Shamooni, A., Stein, O. T., Kronenburg, A., Kempf, A. M., Debiagi, P. and Hasse, C.Investigation of Turbulent Pulverized Solid Fuel Combustion with Detailed Homogeneous and Heterogeneous Kinetics, Energy & Fuels, 35 (9), 2021.

  • Debiagi, P., Yildiz, C., Ströhle, J., Epple, B., Faravelli, T. and Hasse, C.Systematic evaluation and kinetic modeling of low heating rate sulfur release in various atmospheres, Fuel, 289: 119739, 2021.

  • Wen, Xu, Nicolai, H., Debiagi, P., Zabrodiec, D., Maßmeyer, A., Kneer, R. and Hasse, C.Flamelet LES of a 40 kWth pulverized torrefied biomass furnace in air and oxy-fuel atmospheres, Proceedings of the Combustion Institute, 2022.

Projects

Ruhr-Universität Bochum Chair of Thermal Turbomachines and Aeroengines

Contact

francesca.dimare@rub.de

Publications

  • Avdic, A., Künne, G., di Mare, F. and Janicka, J.LES combustion modeling using the Eulerian stochastic field method coupled with tabulated chemistry, Combustion and Flame, 175: 201-219, 2017.

  • Doost, S., Ries, F., Becker, L., Bürkle, S., Wagner, S., Ebert, V., Dreizler, A., di Mare, F., Sadiki, A. and Janicka, J.Residence time calculations for complex swirling flow in a combustion chamber using large-eddy simulations, Chemical Engineering Science, 156: 97-114, 2016.

  • Sadiki, A., Agrebi, S., Chrigui, M., Doost, S., Knappstein, R., di Mare, F., Janicka, J., Maßmeyer, A., Zabrodiec, D., Hees, J. and Kneer, R.Analyzing the effects of turbulence and multiphase treatments on oxy-coal combustion process predictions using LES and RANS, Chemical Engineering Science, 166: 283-302, 2017.

  • Miranda, F., di Mare, F., Sadiki, A. and Janicka, J.Performance analysis of different solvers for computing the radiative transfer equation in complex geometries using finite volume method and block structured grids, Computational Thermal Sciences: An International Journal, 9 (3): 269-282, 2017.

  • Knappstein, R., Künne, G., Becker, L., di Mare, F., Sadiki, A., Dreizler, A. and Janicka, J.Large Eddy Simulation of a Novel Gas-Assisted Coal Combustion Chamber, Flow, Turbulence and Combustion, 101 (3): 895-926, 2018.

  • Knappstein, R., Künne, G., Nicolai, H., di Mare, F., Sadiki, A. and Janicka, J.Description of the char conversion process in coal combustion based on premixed FGM chemistry, Fuel, 236: 124-134, 2019.

  • Miranda, F., Coelho, P. J., di Mare, F. and Janicka, J.Study of turbulence-radiation interactions in large-eddy simulation of scaled Sandia flame D, Journal of Quantitative Spectroscopy and Radiative Transfer, 228: 47-56, 2019.

  • Nicolai, H., Li, T., Geschwindner, C., di Mare, F., Hasse, C., Böhm, B. and Janicka, J.Numerical investigation of pulverized coal particle group combustion using tabulated chemistry, Proceedings of the Combustion Institute, 2020.

  • Nicolai, H., Wen, Xu, Miranda, F., Zabrodiec, D., Maßmeyer, A., di Mare, F., Dreizler, A., Hasse, C., Kneer, R. and Janicka, J.Numerical investigation of swirl-stabilized pulverized coal flames in air and oxy-fuel atmospheres by means of large eddy simulation coupled with tabulated chemistry, Fuel: 119429, 2020.

  • Nicolai, H., Doost, S., di Mare, F., Hasse, C. and Janicka, J.Large Eddy Simulation of pulverized coal combustion under oxy atmospheres using tabulated chemistry, 12th European Conference on Industrial Furnaces and Boilers : INFUB 12, 2020.

  • Nicolai, H., Künne, G., Knappstein, R., di Mare, F. and Janicka, J.Entwicklung einer Simulationsmethode zur Beschreibung der Feststoffverbrennung in Oxy-Atmosphären auf Basis tabellierten Chemie, 29. Deutscher Flammentag, Bochum, Germany, 2019.

  • Nicolai, H., Künne, G., Knappstein, R., Schneider, H., Becker, L., Hasse, C., di Mare, F., Dreizler, A. and Janicka, J.Large Eddy Simulation of a laboratory-scale gas-assisted pulverized coal combustion chamber under oxy-fuel atmospheres using tabulated chemistry, Fuel, 272: 117683, 2020.

  • Farmand, P., Nicolai, H., Schumann, C., Attili, A., Berger, L., Li, T., Geschwindner, C., di Mare, F., Hasse, C., Böhm, B., Janicka, J. and Pitsch, H.Numerical investigation and assessment of flamelet-based models for the prediction of pulverized solid fuel homogeneous ignition and combustion, Combustion and Flame, 235: 111693, 2022.

Projects

Technische Universität Darmstadt Reaktive Strömungen und Messtechnik

Contact

dreizler@csi.tu-darmstadt.de

Publications

  • Köser, J., Becker, L., Vorobiev, N., Schiemann, M., Scherer, V., Böhm, B. and Dreizler, A.Characterization of single coal particle combustion within oxygen-enriched environments using high-speed OH-PLIF, Applied Physics B, 121 (4): 459-464, 2015.

  • Blume, N. G., Ebert, V., Dreizler, A. and Wagner, S.Broadband fitting approach for the application of supercontinuum broadband laser absorption spectroscopy to combustion environments, Measurement Science and Technology, 27 (1): 015501, 2016.

  • Knappstein, R., Kuenne, G., Ketelheun, A., Köser, J., Becker, L., Heuer, S., Schiemann, M., Scherer, V., Dreizler, A., Sadiki, A. and Janicka, J.Devolatilization and volatiles reaction of individual coal particles in the context of FGM tabulated chemistry, Combustion and Flame, 169: 72-84, 2016. doi 

  • Doost, S., Ries, F., Becker, L., Bürkle, S., Wagner, S., Ebert, V., Dreizler, A., di Mare, F., Sadiki, A. and Janicka, J.Residence time calculations for complex swirling flow in a combustion chamber using large-eddy simulations, Chemical Engineering Science, 156: 97-114, 2016.

  • Köser, J., Becker, L., Goßmann, A-K., Böhm, B. and Dreizler, A.Investigation of ignition and volatile combustion of single coal particles within oxygen-enriched atmospheres using high-speed OH-PLIF, Proceedings of the Combustion Institute, 36 (2): 2103-2111, 2017.

  • Becker, L., Kosaka, H., Böhm, B., Doost, S., Knappstein, R., Habermehl, M., Kneer, R., Janicka, J. and Dreizler, A.Experimental investigation of flame stabilization inside the quarl of an oxyfuel swirl burner, Fuel, 201: 124-135, 2017.

  • Weinkauff, J., Greifenstein, M., Dreizler, A. and Böhm, B.Time resolved three-dimensional flamebase imaging of a lifted jet flame by laser scanning, Measurement Science and Technology, 26 (10): 105201, 2015.

  • Köser, J., Knappstein, R., Goßmann, A-K., Becker, L., Böhm, B., Janicka, J. and Dreizler, A.An Experimental and Numerical Study of Volatile Combustion of Single Coal Particles in an Oxygen Enriched Atmosphere, 32nd Annual International Pittsburgh Coal Conference, Pittsburgh, Pennsylvania, USA, 2015.

  • Zabrodiec, D., Becker, L., Hees, J., Maßmeyer, A., Habermehl, M., Hatzfeld, O., Dreizler, A. and Kneer, R.Detailed Analysis of the Velocity Fields from 60 kW Swirl-Stabilized Coal Flames in CO2/O2- and N2/O2-Atmospheres by Means of Laser Doppler Velocimetry and Particle Image Velocimetry, Combustion Science and Technology, 189 (10): 1751-1775, 2017.

  • Becker, L., von Langenthal, T., Pielsticker, S., Böhm, B., Kneer, R. and Dreizler, A.Experimental investigation of particle-laden flows in an oxy-coal combustion chamber for non-reacting conditions, Fuel, 235: 753-762, 2019.

  • Köser, J., Li, T., Vorobiev, N., Dreizler, A., Schiemann, M. and Böhm, B.Multi-parameter diagnostics for high-resolution in-situ measurements of single coal particle combustion, Proceedings of the Combustion Institute, 37 (3): 2893-2900, 2019.

  • Pareja, J., Johchi, A., Li, T., Dreizler, A. and Böhm, B.A study of the spatial and temporal evolution of auto-ignition kernels using time-resolved tomographic OH-LIF, Proceedings of the Combustion Institute, 37 (2): 1321-1328, 2019.

  • Li, T., Pareja, J., Fuest, F., Schütte, M., Zhou, Y., Dreizler, A. and Böhm, B.Tomographic imaging of OH laser-induced fluorescence in laminar and turbulent jet flames, Measurement Science and Technology, 29 (1): 015206, 2018.

  • Agizza, M. A., Bürkle, S., Becker, L., Greifenstein, M., Bagheri, G., Doost, S., Faravelli, T., Janicka, J., Wagner, S. and Dreizler, A.Reactor network modelling of a close to reality combustor using residence time measurements, 10th Mediterranean Combustion Symposium, 2017.

  • Bürkle, S., Becker, L., Agizza, M. A., Dreizler, A., Ebert, V. and Wagner, S.In-situ measurement of residence time distributions in a turbulent oxy-fuel gas-flame combustor, Experiments in Fluids, 58 (7): 647, 2017.

  • Bürkle, S., Becker, L., Agizza, M. A., Dreizler, A. and Wagner, S.Comparison of two measurement strategies to obtain the residence time distribution in combustion chambers using tunable diode laser absorption spectroscopy, Applied Optics, 58 (10): C36, 2019.

  • Bürkle, S., Becker, L., Dreizler, A. and Wagner, S.Experimental investigation of the flue gas thermochemical composition of an oxy-fuel swirl burner, Fuel, 231: 61-72, 2018.

  • Bürkle, S., Ebert, V., Rauen, D., Dreizler, A., Möller, G. H., Hees, J., Zabrodiec, D., Maßmeyer, A. and Wagner, S.Laserbasierte Messung von Temperatur und Spezieskonzentrationen bei der Verbrennung von torrefizierter Biomasse in einer 100 kWth-Staubfeuerungsversuchsanlage, 28. Deutscher Flammentag, 2017.

  • Hees, J., Bürkle, S., Becker, L., Zabrodiec, D., Wagner, S., Dreizler, A. and Kneer, R.A complementary approach for the experimental investigation of solid oxy-fuel combustion using optical diagnostics, 2nd International Workshop on Oxy-fuel Combustion, 2018.

  • Knappstein, R., Künne, G., Becker, L., di Mare, F., Sadiki, A., Dreizler, A. and Janicka, J.Large Eddy Simulation of a Novel Gas-Assisted Coal Combustion Chamber, Flow, Turbulence and Combustion, 101 (3): 895-926, 2018.

  • Li, T., Pareja, J., Becker, L., Heddrich, W., Dreizler, A. and Böhm, B.Quasi-4D laser diagnostics using an acousto-optic deflector scanning system, Applied Physics B, 123 (3): 1243, 2017.

  • Bürkle, S., Dreizler, A., Ebert, V. and Wagner, S.Experimental comparison of a 2D laminar diffusion flame under oxy-fuel and air atmosphere, Fuel, 212: 302-308, 2018.

  • Emmert, J., Blume, N. G., Dreizler, A. and Wagner, S.PolySpec: polynomial spectrum models for fast and light-weight spectroscopic evaluation, Applied Optics, 57 (34): 9907, 2018.

  • Schneider, H., Becker, L., Pielsticker, S., Böhm, B., Kneer, R. and Dreizler, A.Experimental investigation and comparison of particle-laden flows in a gas-assisted oxycoal combustion chamber for reacting and non-reacting conditions, 9th European Combustion Meeting, 2019.

  • Li, T., Köser, J., Schiemann, M., Dreizler, A. and Böhm, B.Untersuchungen der Verbrennung von Einzelpartikeln und Partikelgruppen mit zeitaufgelöster volumetrischer Messung des OH-Radikals, 29. Deutscher Flammentag, 2019.

  • Li, T., Köser, J., Dreizler, A., Schiemann, M. and Böhm, B.Time-resolved volumetric measurement of OH radicals on single particle and particle group combustion, 14th International Conference on Sustainable Development of Energy, Water and Environment Systems, 2019.

  • Becker, L., Pielsticker, S., Böhm, B., Kneer, R. and Dreizler, A.Particle dynamics in a gas assisted coal combustion chamber using advanced laser diagnostics, Fuel, 269: 117188, 2020.

  • Schneider, H., Böhm, B., Kneer, R. and Dreizler, A.B4 – Visualization and analysis of solid fuel particle tracectories in a gas-assisted oxy-fuel combustion chamber, 3rd International Workshop on Oxy-Fuel Combustion, 2020.

  • Li, T., Schiemann, M., Köser, J., Dreizler, A. and Böhm, B.Experimental investigations of single particle and particle group combustion in a laminar flow reactor using simultaneous volumetric OH-LIF imaging and diffuse backlight-illumination, Renewable and Sustainable Energy Reviews, 136: 110377, 2021.

  • Li, T., Geschwindner, C., Köser, J., Schiemann, M., Dreizler, A. and Böhm, B.Investigation of the transition from single to group coal particle combustion using high-speed scanning OH-LIF and diffuse backlight-illumination, Proceedings of the Combustion Institute, 2020.

  • Li, T., Zhou, Bo, Frank, J. H., Dreizler, A. and Böhm, B.High-speed volumetric imaging of formaldehyde in a lifted turbulent jet flame using an acousto-optic deflector, Experiments in Fluids, 61 (4): 2903, 2020.

  • Zhou, Bo, Li, T., Frank, J. H., Dreizler, A. and Böhm, B.Simultaneous 10 kHz three-dimensional CH2O and tomographic PIV measurements in a lifted partially-premixed jet flame, Proceedings of the Combustion Institute, 2020.

  • Johchi, A., Pareja, J., Böhm, B. and Dreizler, A.Quantitative mixture fraction imaging of a synthetic biogas turbulent jet propagating into a NO-vitiated air co-flow using planar laser-induced fluorescence (PLIF), Experiments in Fluids, 60 (5): 60, 2019.

  • Maßmeyer, A., Zabrodiec, D., Dreizler, A. and Kneer, R.Stability Analysis of 60 kWth Coal Flames under Air and Oxyfuel Conditions, 3rd International Workshop on Oxy-Fuel Combustion, Montabaur, Germany, 2020.

  • Attili, A., Farmand, P., Schumann, C., Farazi, S., Böhm, B., Li, T., Geschwindner, C., Köser, J., Dreizler, A. and Pitsch, H.Numerical Simulations and Experiments of Ignition of Solid Particles in a Laminar Burner: Effects of Slip Velocity and Particle Swelling, Flow, Turbulence and Combustion, 2020.

  • Schneider, H., Valentiner, S., Vorobiev, N., Böhm, B., Schiemann, M., Scherer, V., Kneer, R. and Dreizler, A.Investigation on flow dynamics and temperatures of solid fuel particles in a gas-assisted oxy-fuel combustion chamber, Fuel, 286: 119424, 2021.

  • Nicolai, H., Künne, G., Knappstein, R., Schneider, H., Becker, L., Hasse, C., di Mare, F., Dreizler, A. and Janicka, J.Large Eddy Simulation of a laboratory-scale gas-assisted pulverized coal combustion chamber under oxy-fuel atmospheres using tabulated chemistry, Fuel, 272: 117683, 2020.

  • Nicolai, H., Wen, Xu, Miranda, F., Zabrodiec, D., Maßmeyer, A., di Mare, F., Dreizler, A., Hasse, C., Kneer, R. and Janicka, J.Numerical investigation of swirl-stabilized pulverized coal flames in air and oxy-fuel atmospheres by means of large eddy simulation coupled with tabulated chemistry, Fuel: 119429, 2020.

  • Meißner, C., Schneider, H., Sidiropoulos, E., Hölzer, J. I., Heckmann, T., Böhm, B., Dreizler, A. and Seeger, T.Investigation on wall and gas temperatures inside a swirled oxy-fuel combustion chamber using thermographic phosphors, O2 rotational and vibrational CARS, Fuel, 289: 119787, 2021.

  • Trespi, S., Nicolai, H., Debiagi, P., Janicka, J., Dreizler, A., Hasse, C. and Faravelli, T.Development and application of an efficient chemical reactor network model for oxy-fuel combustion, Energy & Fuels: (accepted), 2020.

  • Becker, L. and Dreizler, A.B4 – Detailed experimental investigation and characterization of oxycoal burners via laser optical methods, 2nd International Workshop on Oxy-fuel Combustion, 2018.

  • Emmert, J., Schneider, H., Meißner, C., Sidiropoulos, E., Hölzer, J. I., Seeger, T., Böhm, B., Dreizler, A. and Wagner, S.Characterization of temperature distributions in a swirled oxy-fuel coal combustor using tomographic absorption spectroscopy with fluctuation modelling, Applications in Energy and Combustion Science, 6: 100025, 2021.

  • Li, T., Farmand, P., Geschwindner, C., Greifenstein, M., Köser, J., Schumann, C., Attili, A., Pitsch, H., Dreizler, A. and Böhm, B.Homogeneous ignition and volatile combustion of single solid fuel particles in air and oxy-fuel conditions, Fuel, 291, 2021.

  • Schneider, H., Becker, L., Kneer, R. and Dreizler, A.Visualisierung und Analyse von Gasphasengeschwindigkeit und Partikeltrajektorien in einem gasassistierten Oxyfuel-Staubbrenner, 29. Deutscher Flammentag, 2019.

  • Li, T., Geschwindner, C., Dreizler, A. and Böhm, B.An experimental study of coal particle group combustion in conventional and oxy-fuel atmospheres using multi-parameter optical diagnostics, Proceedings of the Combustion Institute, 2022.

  • Li, T., Li, Bo, Farmand, P., Dreizler, A., Pitsch, H. and Böhm, B.Motion and swelling of single coal particles during volatile combustion in a laminar flow reactor, Proceedings of the Combustion Institute, 2022.

  • Geschwindner, C., Westrup, K., Li, T., Dreizler, A. and Böhm, B.Experimentelle Untersuchung der Interaktion von Biomasse mit einem turbulenten plasmabeheizten Oxidatorgasstrom, 30. Deutscher Flammentag, Hannover, Germany, 2021.

Projects

Ruhr-Universität Bochum Lehrstuhl für Technische Chemie

Contact

till.eckhard@techem.rub.de

Publications

  • Lotz, K., Wütscher, A., Eckhard, T. and Muhler, M.The impact of mineral matter on the evolved pyrolysis gases, 2nd International Workshop on Oxy-fuel Combustion, 2018.

  • Wütscher, A., Eckhard, T., Hiltrop, D., Lotz, K., Schuhmann, W., Andronescu, C. and Muhler, M.Nitrogen-Doped Metal-Free Carbon Materials Derived from Cellulose as Electrocatalysts for the Oxygen Reduction Reaction, ChemElectroChem, 1: 16064, 2018.

  • Kreitzberg, T., Eckhard, T., Pielsticker, S., Muhler, M. and Kneer, R.Änderung von Struktur und Reaktivität durch Pyrolyse fester Brennstoffe, 29. Deutscher Flammentag, 2019.

  • Eckhard, T., Lotz, K., Pflieger, C., Vorobiev, N., Valentiner, S., Scherer, V. and Muhler, M.Hydrothermal carbonisierte mikrokristalline Cellulose als aschefreier Modellbrennstoff für Flachflammenbrenner, 29. Deutscher Flammentag, 2019.

  • Eckhard, T.Pyrolysis-GC/MS-GC/TCD: Analysis of broad product distributions evolving during coal pyrolysis, Pyrolysis GC-MS User Meeting, 2019.

  • Eckhard, T., Valentiner, S., Pflieger, C., Lotz, K., Schiemann, M., Scherer, V. and Muhler, M.The Catalytic Influence of Doped Metals on the Pyrolysis Product Distribution and Resulting Chars of Hydrothermally Derived Model Fuels, 3rd International Workshop on Oxy-Fuel Combustion, 2020.

  • Eckhard, T., Wütscher, A. and Muhler, M.Simultaneous analysis of light gases and heavy pyrolyzates evolved from lignite and hard coal by pyrolysis–GC/MS–GC/TCD, Journal of Analytical and Applied Pyrolysis, 149: 104833, 2020.

  • Pflieger, C., Lotz, K., Eckhard, T. and Muhler, M.Reactivity of mineral-free and doped synthetic chars in O2-, CO2-, and H2O-containing atmospheres, 3rd International Workshop on Oxy-Fuel Combustion, 2020.

  • Eckhard, T., Pflieger, C., Schmidt, S., Böttger, J., Senneca, O., Schiemann, M., Scherer, V., Muhler, M. and Cerciello, F.Catalytic effects for cellulose-based model fuels under low and high heating rate in air and oxy-fuel atmosphere, Fuel, 324: 124437, 2022.

  • Pflieger, C., Eckhard, T., Böttger, J., Cerciello, F. and Muhler, M.Catalytic influence of minerals on cellulose-based model fuels and model chars in oxidation and gasification, 30. Deutscher Flammentag, 2021.

  • Böttger, J., Eckhard, T., Pflieger, C., Senneca, O., Muhler, M. and Cerciello, F.Green coal substitutes for boilers through hydrothermal carbonization of biomass, 13th European Conference on Industrial Furnaces and Boilers, 2022.

  • Böttger, J., Eckhard, T., Pflieger, C., Muhler, M. and Cerciello, F.Hydrothermal carbonization of biomass: influence of cellulose, hemicellulose and lignin, 23rd edition of the International Conference on Analytical and Applied Pyrolysis, 2022.

  • Eckhard, T., Lotz, K., Wütscher, A., Berger, C. M. and Muhler, M.Kinetic investigations on catalytic properties of mineral matter in oxy-fuel combustion, 2nd International Workshop on Oxy-fuel Combustion, 2018.

  • Eckhard, T., Pflieger, C., Russo, C., Böttger, J., Senneca, O., Apicella, B., Schiemann, M., Scherer, V., Muhler, M. and Cerciello, F.Mineral effects on chemical and physical transformations of cellulose-based model fuels in N2 and CO2 atmospheres, 23rd edition of the International Conference on Analytical and Applied Pyrolysis, 2022.

  • Eckhard, T., Pflieger, C., Russo, C., Böttger, J., Senneca, O., Apicella, B., Schiemann, M., Scherer, V., Muhler, M. and Cerciello, F.Mineral effects on chemical and physical transformations of cellulose-based model fuels in N2 and CO2 atmospheres, 13th European Conference on Industrial Furnaces and Boilers, 2022.

  • Pflieger, C., Eckhard, T., Böttger, J., Telaar, P., Schulwitz, J., Schmidt, S., Cerciello, F. and Muhler, M.The catalytic effect of iron on the oxidation of cellulose-derived chars, 55. Jahrestreffen Deutscher Katalytiker, 2022.

Projects

Ruhr-Universität Bochum Lehrstuhl für Thermodynamik

Contact

t.eisenbach@thermo.rub.de

Publications

  • Wedler, C., Eisenbach, T., Schwarz, J. and Span, R.A first parameterization of the pore-structure dependent kinetic adsorption model for O2 adsorption in biomass conversion modeling, 13th International Conference on Applied Energy, 2021.

  • Tarlinski, D., Freisewinkel, E., Eisenbach, T., Span, R., Schiemann, M. and Scherer, V.Char burnout of walnut shells using optical measurement techniques and first comparison of the experimental data to the CCK model, 46th International Technical Conference on Clean Energy, 2022.

  • Ontyd, C., Freisewinkel, E., Wedler, C., Eisenbach, T., Span, R., Senneca, O. and Scherer, V.Flash pyrolysis of walnut shells and poplar in N2 and CO2: pyrolysis kinetics, pore evolution and a model for evaluation of pyrolysis species, 13th European Conference on Industrial Furnaces and Boilers, 2022.

Projects

Technische Universität Darmstadt Fachgebiet Energiesysteme und Energietechnik

Contact

bernd.epple@est.tu-darmstadt.de

Publications

  • Frigge, L., Elserafi, G., Ströhle, J. and Epple, B.Sulfur and Chlorine Gas Species Formation during Coal Pyrolysis in Nitrogen and Carbon Dioxide Atmosphere, Energy & Fuels, 30 (9): 7713-7720, 2016.

  • von Bohnstein, M., Langen, J., Frigge, L., Stroh, A., Ströhle, J. and Epple, B.Comparison of CFD Simulations with Measurements of Gaseous Sulfur Species Concentrations in a Pulverized Coal Fired 1 MWth Furnace, Energy & Fuels, 30 (11): 9836-9849, 2016.

  • Gronarz, T., Schulze, J., Laemmerhold, M., Graeser, P., Gorewoda, J., Kez, V., Habermehl, M., Schiemann, M., Ströhle, J., Epple, B., Scherer, V. and Kneer, R.Quantification of the influence of parameters determining radiative heat transfer in an oxy-fuel operated boiler, Fuel Processing Technology, 157: 76-89, 2017.

  • Kez, V., Liu, F., Consalvi, J-L., Ströhle, J. and Epple, B.A comprehensive evaluation of different radiation models in a gas turbine combustor under conditions of oxy-fuel combustion with dry recycle, Journal of Quantitative Spectroscopy and Radiative Transfer, 172: 121-133, 2016.

  • Kez, V., Consalvi, J-L., Liu, F., Ströhle, J. and Epple, B.Assessment of several gas radiation models for radiative heat transfer calculations in a three-dimensional oxy-fuel furnace under coal-fired conditions, International Journal of Thermal Sciences, 120: 289-302, 2017.

  • Frigge, L., Ströhle, J. and Epple, B.Release of sulfur and chlorine gas species during coal combustion and pyrolysis in an entrained flow reactor, Fuel, 201: 105-110, 2017.

  • Frigge, L., Ströhle, J. and Epple, B.Sulfur and Chlorine Gas Species Formation during Temperature-Programmed Coal Air- and Oxy-fuel Combustion, 13th International Conference on Energy for a Clean Environment, 2017.

  • von Bohnstein, M., Ströhle, J. and Epple, B.CFD Simulation of an Oxy-fuel Demonstration Power Plant with Application of a WSGG radiation model, Energy Procedia, 158: 1993-1998, 2019.

  • Kez, V., Consalvi, J-L., Liu, F., Gronarz, T., Ströhle, J., Kneer, R. and Epple, B.Investigation of gas and particle radiation modelling in wet oxy-coal combustion atmospheres, International Journal of Heat and Mass Transfer, 133: 1026-1040, 2019.

  • Frigge, L., Ströhle, J. and Epple, B.Modification of a model for sulfur release during coal pyrolysis to account for oxy-fuel conditions, 2nd International Workshop on Oxy-fuel Combustion, 2018.

  • Debiagi, P., Yildiz, C., Ströhle, J., Epple, B., Faravelli, T. and Hasse, C.Validation of a comprehensive kinetic mechanism for sulfur release during pyrolysis of solid fuels, 9th International Symposium on Coal Combustion, Qingdao, China, 2019.

  • von Bohnstein, M., Graeser, P., Schiemann, M., Ströhle, J. and Epple, B.3D CFD Simulation of a 250 MWel Oxy-fuel Boiler with Evaluation of Heat Radiation Calculation, 14th International Conference on Sustainable Development of Energy, Water and Environment Systems, 2019.

  • Schmidt, D., Yildiz, C., Ströhle, J. and Epple, B.Release of nitrogen, sulfur and chlorine species from coal in carbon dioxide atmosphere, Fuel, 284: 119279, 2021.

  • Debiagi, P., Yildiz, C., Richter, M., Ströhle, J., Epple, B., Faravelli, T. and Hasse, C.Experimental and modeling assessment of sulfur release from coal under low and high heating rates, Proceedings of the Combustion Institute, 2020.

  • Debiagi, P., Yildiz, C., Ströhle, J., Epple, B., Faravelli, T. and Hasse, C.Systematic evaluation and kinetic modeling of low heating rate sulfur release in pyrolysis and oxidation in various atmospheres, 3rd International Workshop on Oxy-Fuel Combustion, Montabaur, Germany, 2020.

  • Schmidt, D., Yildiz, C., Ströhle, J. and Epple, B.Experimental Assessment of the Release of Nitrogen, Sulfur and Chlorine Species During Pyrolysis of Coal and Biomass in CO2 Atmosphere, 3rd International Workshop on Oxy-Fuel Combustion, 2020.

  • von Bohnstein, M., Yildiz, C., Frigge, L., Ströhle, J. and Epple, B.Simulation study of the formation of corrosive gases in coal combustion in an entrained flow reactor, Energies, 13 (17): 4523, 2020.

  • Ontyd, C., Pielsticker, S., Yildiz, C., Schiemann, M., Hatzfeld, O., Ströhle, J., Epple, B., Kneer, R. and Scherer, V.Experimental determination of walnut shell pyrolysis kinetics in N2 and CO2 via thermogravimetric analysis, fluidized bed and drop tube reactors, Fuel: 119313, 2020.

  • von Bohnstein, M., Richter, M., Graeser, P., Schiemann, M., Ströhle, J. and Epple, B.3D CFD simulation of a 250 MWel oxy-fuel boiler with evaluation of heat radiation calculation, Renewable and Sustainable Energy Reviews, 137, 2021.

  • von Bohnstein, M., Graeser, P., Schiemann, M., Ströhle, J. and Epple, B.3D CFD Simulation of a 250 MWel Oxy-fuel Boiler with Evaluation of Heat Radiation Calculation, 29. Deutscher Flammentag, Bochum, Germany, 2019.

  • Frigge, L., Wütscher, A., Lotz, K., Yildiz, C., Ströhle, J., Muhler, M. and Epple, B.Sulfur and Chlorine Gas Species Formation during Temperature-Programmed Air and Oxy-fuel Combustion of Coal, Energies: (submitted), 2020.

  • Debiagi, P., Yildiz, C., Ströhle, J., Epple, B., Faravelli, T. and Hasse, C.Systematic evaluation and kinetic modeling of low heating rate sulfur release in various atmospheres, Fuel, 289: 119739, 2021.

Projects

RWTH-Aachen University Institut für Technische Verbrennung

Contact

s.faller@itv.rwth-aachen.de https://www.itv.rwth-aachen.de

Publications

  • Chen, B., Hellmuth, M., Faller, S., May, L., Liu, P., Cai, L., Roberts, W. L. and Pitsch, H.Exploring the combustion chemistry of anisole in laminar counterflow diffusion-flames under oxy-fuel conditions, Combustion and Flame: 111929, 2021.

Projects

Politecnico Milano Chimica, Materiali e Ingegneria Chimica "Giulio Natta"

Contact

tiziano.faravelli@polimi.it

Publications

  • Debiagi, P., Locaspi, A., Hasse, C. and Faravelli, T.A fundamental model of char oxidation, Fuels, Processes, and Combustion Physics in the Energy Transformation, 2020.

  • Locaspi, A., Debiagi, P., Pelucchi, M., Hasse, C. and Faravelli, T.A Predictive Physico-chemical Model of Biochar Oxidation, Energy & Fuels, 35 (18): 14894-14912, 2021.

  • Hasse, C., Debiagi, P., Wen, Xu, Hildebrandt, K., Vascellari, M. and Faravelli, T.Advanced modeling approaches for CFD simulations of coal combustion and gasification, Progress in Energy and Combustion Science, 86: 100938, 2021.

  • Özer, B., Debiagi, P., Hasse, C., Faravelli, T. and Kazanç, F.An experimental and numerical study on the combustion of lignites from different geographic origins, Fuel, 278: 118320, 2020.

  • Gao, Xi, Lu, L., Shahnam, M., Rogers, W. A., Smith, K., Gaston, K., Robichaud, D., Brennan Pecha, M., Crowley, M., Ciesielski, P. N., Debiagi, P., Faravelli, T., Wiggins, G., Finney, C. E.A. and Parks, J. E.Assessment of a detailed biomass pyrolysis kinetic scheme in multiscale simulations of a single-particle pyrolyzer and a pilot-scale entrained flow pyrolyzer, Chemical Engineering Journal, 418: 129347, 2021.

  • Debiagi, P., Ontyd, C., Pielsticker, S., Schiemann, M., Faravelli, T., Kneer, R., Hasse, C. and Scherer, V.Calibration and Validation of a Comprehensive Kinetic Model of Coal Conversion in Inert, Air and Oxy-Fuel Conditions Using Data from Multiple Test Rigs, Fuel: (accepted), 2020.

  • Can small polyaromatics describe their larger counterparts for local reactions? A computational study on the H-abstraction reaction by an H-atom from polyaromatics, The Journal of Physical Chemistry A, 2020.

  • Shamooni, A., Debiagi, P., Wang, B., Luu, T. D., Stein, O. T., Kronenburg, A., Bagheri, G., Stagni, A., Frassoldati, A., Faravelli, T., Kempf, A. M., Wen, Xu and Hasse, C.Carrier-phase DNS of detailed NOx formation in early-stage pulverized coal combustion with fuel-bound nitrogen, Fuel: (accepted), 2020.

  • Shamooni, A., Debiagi, P., Wang, B., Stein, O. T., Kronenburg, A., Stagni, A., Frassoldati, A., Faravelli, T., Kempf, A. M. and Hasse, C.Carrier-phase DNS of NOx formation in pulverized coal flames with fuel-bound nitrogen, 3rd International Workshop on Oxy-Fuel Combustion, 2020.

  • Debiagi, P., Ranzi, E., Faravelli, T. and Hasse, C.Coal Combustion: Integrating Nitrogen and Sulfur Fraction in a Single Kinetic Mechanism, 1st International Conference on Smart Energy Carriers, 2019.

  • Trespi, S., Nicolai, H., Debiagi, P., Janicka, J., Dreizler, A., Hasse, C. and Faravelli, T.Development and application of an efficient chemical reactor network model for oxy-fuel combustion, Energy & Fuels: (accepted), 2020.

  • Debiagi, P., Heuer, S., Ontyd, C., Schiemann, M., Faravelli, T., Hasse, C. and Scherer, V.Differences in Formation and Oxidation Of Colombian Coal Chars in Air and Oxy-Fuel Atmospheres, Chemical Engineering Transactions, 74: 151-156, 2019.

  • Debiagi, P., Yildiz, C., Richter, M., Ströhle, J., Epple, B., Faravelli, T. and Hasse, C.Experimental and modeling assessment of sulfur release from coal under low and high heating rates, Proceedings of the Combustion Institute, 2020.

  • Afessa, M. M., Debiagi, P., Ferreiro, A. I., Mendes, M. A.A., Faravelli, T. and Ramayya, A.VenkataExperimental and modeling investigation on pyrolysis of agricultural biomass residues: Khat stem and coffee husk for bio-oil application, Journal of Analytical and Applied Pyrolysis, 162: 105435, 2022.

  • Berkel, L., Debiagi, P., Stagni, A., Nicolai, H., Hasse, C. and Faravelli, T.Fluidized bed reactor modelling using multiphase reactor networks, 44th Meeting of The Italian Section of The Combustion Institute, 2022.

  • Debiagi, P., Faravelli, T., Hasse, C. and Ranzi, E.Kinetic Modeling of Solid, Liquid and Gas Biofuel Formation from Biomass Pyrolysis, Production of Biofuels and Chemicals, 31-76, SPRINGER NATURE, Singapore, 2020.

  • Debiagi, P., Ontyd, C., Heuer, S., Pielsticker, S., Schiemann, M., Faravelli, T., Kneer, R., Scherer, V. and Hasse, C.Solid Fuel Kinetics for Oxy-Fuel conditions, 29. Deutscher Flammentag, 2019.

  • Debiagi, P., Yildiz, C., Ströhle, J., Epple, B., Faravelli, T. and Hasse, C.Systematic evaluation and kinetic modeling of low heating rate sulfur release in pyrolysis and oxidation in various atmospheres, 3rd International Workshop on Oxy-Fuel Combustion, Montabaur, Germany, 2020.

  • Debiagi, P., Yildiz, C., Ströhle, J., Epple, B., Faravelli, T. and Hasse, C.Systematic evaluation and kinetic modeling of low heating rate sulfur release in various atmospheres, Fuel, 289: 119739, 2021.

  • Debiagi, P., Yildiz, C., Ströhle, J., Epple, B., Faravelli, T. and Hasse, C.Validation of a comprehensive kinetic mechanism for sulfur release during pyrolysis of solid fuels, 9th International Symposium on Coal Combustion, Qingdao, China, 2019.

  • Agizza, M. A., Bürkle, S., Becker, L., Greifenstein, M., Bagheri, G., Doost, S., Faravelli, T., Janicka, J., Wagner, S. and Dreizler, A.Reactor network modelling of a close to reality combustor using residence time measurements, 10th Mediterranean Combustion Symposium, 2017.

Projects

RWTH Aachen University Institut für Technische Verbrennung

Contact

p.farmand@itv.rwth-aachen.de

Publications

  • Attili, A., Farmand, P., Schumann, C., Farazi, S., Böhm, B., Li, T., Geschwindner, C., Köser, J., Dreizler, A. and Pitsch, H.Numerical Simulations and Experiments of Ignition of Solid Particles in a Laminar Burner: Effects of Slip Velocity and Particle Swelling, Flow, Turbulence and Combustion, 2020.

  • Farmand, P., Schumann, C., Attili, A. and Pitsch, H.Direct numerical simulation of solid fuel ignition and combustion in laminar and turbulent conditions, 3rd International Workshop on Oxy-Fuel Combustion, 2020.

  • Li, T., Farmand, P., Geschwindner, C., Greifenstein, M., Köser, J., Schumann, C., Attili, A., Pitsch, H., Dreizler, A. and Böhm, B.Homogeneous ignition and volatile combustion of single solid fuel particles in air and oxy-fuel conditions, Fuel, 291, 2021.

  • Farmand, P., Nicolai, H., Schumann, C., Attili, A., Berger, L., Li, T., Geschwindner, C., di Mare, F., Hasse, C., Böhm, B., Janicka, J. and Pitsch, H.Numerical investigation and assessment of flamelet-based models for the prediction of pulverized solid fuel homogeneous ignition and combustion, Combustion and Flame, 235: 111693, 2022.

  • Fröhlich, K., Farmand, P., Pitsch, H., Meinke, M. and Schröder, W.Particle Reynolds number effects on settling ellipsoids in isotropic turbulence, International Journal of Multiphase Flow, 139, 2021.

  • Li, T., Li, Bo, Farmand, P., Dreizler, A., Pitsch, H. and Böhm, B.Motion and swelling of single coal particles during volatile combustion in a laminar flow reactor, Proceedings of the Combustion Institute, 2022.

Projects

Ruhr-Universität Bochum Lehrstuhl für Energieanlagen und Prozesstechnik

Contact

Erik.Freisewinkel@ruhr-uni-bochum.de

Publications

  • Tarlinski, D., Freisewinkel, E., Eisenbach, T., Span, R., Schiemann, M. and Scherer, V.Char burnout of walnut shells using optical measurement techniques and first comparison of the experimental data to the CCK model, 46th International Technical Conference on Clean Energy, 2022.

  • Ontyd, C., Freisewinkel, E., Wedler, C., Eisenbach, T., Span, R., Senneca, O. and Scherer, V.Flash pyrolysis of walnut shells and poplar in N2 and CO2: pyrolysis kinetics, pore evolution and a model for evaluation of pyrolysis species, 13th European Conference on Industrial Furnaces and Boilers, 2022.

Projects

Technische Universität Darmstadt Reaktive Strömungen und Messtechnik

Contact

geschwindner@rsm.tu-darmstadt.de

Publications

  • Li, T., Geschwindner, C., Köser, J., Schiemann, M., Dreizler, A. and Böhm, B.Investigation of the transition from single to group coal particle combustion using high-speed scanning OH-LIF and diffuse backlight-illumination, Proceedings of the Combustion Institute, 2020.

  • Nicolai, H., Li, T., Geschwindner, C., di Mare, F., Hasse, C., Böhm, B. and Janicka, J.Numerical investigation of pulverized coal particle group combustion using tabulated chemistry, Proceedings of the Combustion Institute, 2020.

  • Attili, A., Farmand, P., Schumann, C., Farazi, S., Böhm, B., Li, T., Geschwindner, C., Köser, J., Dreizler, A. and Pitsch, H.Numerical Simulations and Experiments of Ignition of Solid Particles in a Laminar Burner: Effects of Slip Velocity and Particle Swelling, Flow, Turbulence and Combustion, 2020.

  • Li, T., Farmand, P., Geschwindner, C., Greifenstein, M., Köser, J., Schumann, C., Attili, A., Pitsch, H., Dreizler, A. and Böhm, B.Homogeneous ignition and volatile combustion of single solid fuel particles in air and oxy-fuel conditions, Fuel, 291, 2021.

  • Farmand, P., Nicolai, H., Schumann, C., Attili, A., Berger, L., Li, T., Geschwindner, C., di Mare, F., Hasse, C., Böhm, B., Janicka, J. and Pitsch, H.Numerical investigation and assessment of flamelet-based models for the prediction of pulverized solid fuel homogeneous ignition and combustion, Combustion and Flame, 235: 111693, 2022.

  • Tarlinski, D., Geschwindner, C., Li, T., Böhm, B. and Schiemann, M.Optische Charakterisierung der volatilen Flamme in Partikelsträhnen in Abhängigkeit von der Partikelanzahldichte, 30. Deutscher Flammentag, 2021.

  • Li, T., Geschwindner, C., Dreizler, A. and Böhm, B.An experimental study of coal particle group combustion in conventional and oxy-fuel atmospheres using multi-parameter optical diagnostics, Proceedings of the Combustion Institute, 2022.

  • Geschwindner, C., Westrup, K., Li, T., Dreizler, A. and Böhm, B.Experimentelle Untersuchung der Interaktion von Biomasse mit einem turbulenten plasmabeheizten Oxidatorgasstrom, 30. Deutscher Flammentag, Hannover, Germany, 2021.

Projects

RWTH Aachen University Lehrstuhl für Wärme- und Stoffübertragung

Contact

goevert@wsa.rwth-aachen.de

Publications

  • Zabrodiec, D., Maßmeyer, A., Hees, J., Gronarz, T., Gövert, B., Höfler, M., Ohliger, A., Habermehl, M., Hatzfeld, O. and Kneer, R.Experimental Characterization of the effect of Dry Recirculation on a Swirled Self-Stabilized Oxycoal Flame, 31st Annual International Pittsburgh Coal Conference, Pittsburgh, Pennsylvania, USA, 2014.

  • Gövert, B., Pielsticker, S., Vorobiev, N., Heuer, S., Hatzfeld, O., Kneer, R., Schiemann, M. and Scherer, V.Examination of Pyrolysis and Char Burnout in Oxyfuel Atmosphere Using Plug Flow and Well Stirred Reactor Type Systems, 18th IFRF Members conference, Freising, Germany, 2015.

  • Haustein, H. D., Kreitzberg, T., Gövert, B., Maßmeyer, A. and Kneer, R.Establishment of kinetic parameters of particle reaction from a well-stirred fluidized bed reactor, Fuel, 158: 263-269, 2015.

  • Hees, J., Zabrodiec, D., Maßmeyer, A., Pielsticker, S., Gövert, B., Habermehl, M., Hatzfeld, O. and Kneer, R.Detailed analyzes of pulverized coal swirl flames in oxy-fuel atmospheres, Combustion and Flame, 172: 289-301, 2016.

  • Pielsticker, S., Heuer, S., Senneca, O., Cerciello, F., Salatino, P., Cortese, L., Gövert, B., Hatzfeld, O., Schiemann, M., Scherer, V. and Kneer, R.Comparison of pyrolysis test rigs for oxy-fuel conditions, Fuel Processing Technology, 156: 461-472, 2017. doi 

  • Pielsticker, S., Gövert, B., Kreitzberg, T., Habermehl, M., Hatzfeld, O. and Kneer, R.Simultaneous investigation into the yields of 22 pyrolysis gases from coal and biomass in a small-scale fluidized bed reactor, Fuel, 190: 420-434, 2017.

  • Kreitzberg, T., Gövert, B., Pielsticker, S. and Kneer, R.CO2 and H2O Gasification under Chemically and Diffusion Controlled Conditions, 33rd Annual International Pittsburgh Coal Conference, Cape Town, South Africa, 2016.

  • Influence of biomass torrefaction parameters on fast pyrolysis products under flame-equivalent conditions, Biomass and Bioenergy, 119: 392-410, 2018.

  • Gövert, B., Pielsticker, S., Hatzfeld, O. and Kneer, R.Bestimmung der Koksabbrand-Kinetik in einem Wirbelschichtreaktor am Beispiel einer kolumbianischen Steinkohle, 28. Deutscher Flammentag, Darmstadt, Germany, 2017.

  • Gövert, B., Pielsticker, S., Kreitzberg, T., Habermehl, M., Hatzfeld, O. and Kneer, R.Measurement of reaction rates for pulverized fuel combustion in air and oxyfuel atmosphere using a novel fluidized bed reactor setup, Fuel, 201: 81-92, 2017.

  • Kreitzberg, T., Haustein, H. D., Gövert, B. and Kneer, R.Investigation of Gasification Reaction of Pulverized Char Under N2/CO2 Atmosphere in a Small-Scale Fluidized Bed Reactor, Journal of Energy Resources Technology, 138 (4): 042207, 2016.

  • Pielsticker, S., Gövert, B., Kreitzberg, T., Habermehl, M., Hatzfeld, O. and Kneer, R.Theoretical and experimental evaluation of a fast fluidized bed reactor for the investigation of combustion reactions, 10th Mediterranean Combustion Symposium, 2017.

  • Pielsticker, S., Gövert, B., Kreitzberg, T., Habermehl, M., Hatzfeld, O. and Kneer, R.Development of a rapidly responding fluidized bed reactor by theoretical and experimental evaluation of combustion reactions, Fuel, 223: 462-469, 2018.

  • Pielsticker, S., Gövert, B., Möller, G. H., Hatzfeld, O. and Kneer, R.Impact of Torrefaction on Flash Pyrolysis Products of Biomass and Comparison to Fossil Fuels, 11th Asia-Pacific Conference on Combustion, 2017.

  • Gövert, B., Kreitzberg, T., Pielsticker, S. and Kneer, R.A1 – Experimental investigation of pyrolysis and char burnout kinetics in a Well-Stirred-Reactor under flames and burnout conditions, 2nd International Workshop on Oxy-fuel Combustion, 2018.

  • Pielsticker, S., Gövert, B., Umeki, K. and Kneer, R.Flash Pyrolysis Kinetics of Extracted Lignocellulosic Biomass Components, Frontiers in Energy Research, 9, 2021.

  • Kreitzberg, T., Haustein, H. D., Gövert, B. and Kneer, R.Investigation of gasification reaction of pulverized char under N2/CO2 atmosphere in a small-scale fluidized bed reactor, 40th International Technical Conference on Clean Coal & Fuel Systems, Clearwater, Florida, USA, 2015.

Projects

RWTH Aachen University Institut für Technische Verbrennung

Contact

a.hassan@itv.rwth-aachen.de

Publications

  • Hassan, A., Sayadi, T., Le Chenadec, V., Pitsch, H. and Attili, A.Adjoint-based sensitivity analysis of steady char burnout, Combustion Theory and Modelling: (accepted), 2020.

  • Hassan, A., Sayadi, T., Le Chenadec, V. and Attili, A.Sensitivity analysis of an unsteady char particle combustion, Fuel: (accepted), 2020.

  • Hassan, A., Sayadi, T., Schiemann, M. and Scherer, V.Adjoint-based sensitivity analysis of char combustion surface reaction kinetics, Fuel, 287, 2021.

Projects

Technische Universität Darmstadt Simulation of reactive Thermo-Fluid Systems

Contact

hasse@stfs.tu-darmstadt.de

Publications

  • Debiagi, P., Ontyd, C., Heuer, S., Pielsticker, S., Schiemann, M., Faravelli, T., Kneer, R., Scherer, V. and Hasse, C.Solid Fuel Kinetics for Oxy-Fuel conditions, 29. Deutscher Flammentag, 2019.

  • Debiagi, P., Heuer, S., Ontyd, C., Schiemann, M., Faravelli, T., Hasse, C. and Scherer, V.Differences in Formation and Oxidation Of Colombian Coal Chars in Air and Oxy-Fuel Atmospheres, Chemical Engineering Transactions, 74: 151-156, 2019.

  • Debiagi, P., Yildiz, C., Ströhle, J., Epple, B., Faravelli, T. and Hasse, C.Validation of a comprehensive kinetic mechanism for sulfur release during pyrolysis of solid fuels, 9th International Symposium on Coal Combustion, Qingdao, China, 2019.

  • Wen, Xu, Stein, O. T., Tufano, G. L., Kronenburg, A., Scholtissek, A. and Hasse, C.Multi-dimensional and transient effects on flamelet modeling for turbulent pulverized coal combustion, Fuel, 255: 115772, 2019.

  • Wen, Xu, Debiagi, P., Stein, O. T., Kronenburg, A., Kempf, A. M. and Hasse, C.Flamelet tabulation methods for solid fuel combustion with fuel-bound nitrogen, Combustion and Flame, 209: 155-166, 2019.

  • Debiagi, P., Nicolai, H., Han, W., Janicka, J. and Hasse, C.Towards predictive CFD simulations of coal combustion – using Machine Learning for efficient representation of solid fuel kinetics, 9th International Symposium on Coal Combustion, 2019.

  • Debiagi, P., Yildiz, C., Richter, M., Ströhle, J., Epple, B., Faravelli, T. and Hasse, C.Experimental and modeling assessment of sulfur release from coal under low and high heating rates, Proceedings of the Combustion Institute, 2020.

  • Debiagi, P., Yildiz, C., Ströhle, J., Epple, B., Faravelli, T. and Hasse, C.Systematic evaluation and kinetic modeling of low heating rate sulfur release in pyrolysis and oxidation in various atmospheres, 3rd International Workshop on Oxy-Fuel Combustion, Montabaur, Germany, 2020.

  • Can small polyaromatics describe their larger counterparts for local reactions? A computational study on the H-abstraction reaction by an H-atom from polyaromatics, The Journal of Physical Chemistry A, 2020.

  • Chen, Y., Stein, O. T., Kronenburg, A., Xing, J., Luo, K., Luo, K. H. and Hasse, C.Analysis of Gas-Assisted Pulverized Coal Combustion in Cambridge Coal Burner CCB1 Using FPV-LES, Energy & Fuels, 34 (6): 7477-7489, 2020.

  • Debiagi, P., Faravelli, T., Hasse, C. and Ranzi, E.Kinetic Modeling of Solid, Liquid and Gas Biofuel Formation from Biomass Pyrolysis, Production of Biofuels and Chemicals, 31-76, SPRINGER NATURE, Singapore, 2020.

  • Debiagi, P., Locaspi, A., Hasse, C. and Faravelli, T.A fundamental model of char oxidation, Fuels, Processes, and Combustion Physics in the Energy Transformation, 2020.

  • Debiagi, P., Nicolai, H., Han, W., Janicka, J. and Hasse, C.Machine learning for predictive coal combustion CFD simulations—From detailed kinetics to HDMR Reduced-Order models, Fuel, 274: 117720, 2020.

  • Özer, B., Debiagi, P., Hasse, C., Faravelli, T. and Kazanç, F.An experimental and numerical study on the combustion of lignites from different geographic origins, Fuel, 278: 118320, 2020.

  • Wen, Xu, Debiagi, P. and Hasse, C.Flamelet tabulation methods for SOx formation in pulverized solid fuel combustion, Combustion and Flame, 218: 150-167, 2020.

  • Wen, Xu, Nicolai, H., Schneider, H., Cai, L., Janicka, J., Pitsch, H. and Hasse, C.Flamelet LES of a swirl-stabilized multi-stream pulverized coal burner in air and oxy-fuel atmospheres with pollutant formation, Proceedings of the Combustion Institute, 2020.

  • Nicolai, H., Künne, G., Knappstein, R., Schneider, H., Becker, L., Hasse, C., di Mare, F., Dreizler, A. and Janicka, J.Large Eddy Simulation of a laboratory-scale gas-assisted pulverized coal combustion chamber under oxy-fuel atmospheres using tabulated chemistry, Fuel, 272: 117683, 2020.

  • Nicolai, H., Li, T., Geschwindner, C., di Mare, F., Hasse, C., Böhm, B. and Janicka, J.Numerical investigation of pulverized coal particle group combustion using tabulated chemistry, Proceedings of the Combustion Institute, 2020.

  • Wen, Xu, Nicolai, H., Stein, O. T., Janicka, J., Kronenburg, A. and Hasse, C.Effects of air and oxy-fuel atmospheres on flamelet modeling of pollutant formation in laminar counterflow solid fuel flames, Fuel, 285: 119079, 2021.

  • Nicolai, H., Doost, S., di Mare, F., Hasse, C. and Janicka, J.Large Eddy Simulation of pulverized coal combustion under oxy atmospheres using tabulated chemistry, 12th European Conference on Industrial Furnaces and Boilers : INFUB 12, 2020.

  • Debiagi, P., Ontyd, C., Pielsticker, S., Schiemann, M., Faravelli, T., Kneer, R., Hasse, C. and Scherer, V.Calibration and Validation of a Comprehensive Kinetic Model of Coal Conversion in Inert, Air and Oxy-Fuel Conditions Using Data from Multiple Test Rigs, Fuel: (accepted), 2020.

  • Shamooni, A., Debiagi, P., Wang, B., Stein, O. T., Kronenburg, A., Stagni, A., Frassoldati, A., Faravelli, T., Kempf, A. M. and Hasse, C.Carrier-phase DNS of NOx formation in pulverized coal flames with fuel-bound nitrogen, 3rd International Workshop on Oxy-Fuel Combustion, 2020.

  • Pflieger, C., Lotz, K., Hilse, N., Berger, C. M., Schiemann, M., Debiagi, P., Hasse, C., Scherer, V., Muhler, M. and Debiagi, P.Catalytic Influence of Mineral Compounds on the Reactivity of Cellulose-Derived Char in O2-, CO2-, and H2O-Containing Atmospheres, Fuel, 2020.

  • Debiagi, P., Ranzi, E., Faravelli, T. and Hasse, C.Coal Combustion: Integrating Nitrogen and Sulfur Fraction in a Single Kinetic Mechanism, 1st International Conference on Smart Energy Carriers, 2019.

  • Wen, Xu, Shamooni, A., Stein, O. T., Cai, L., Kronenburg, A., Pitsch, H., Kempf, A. M. and Hasse, C.Detailed analysis of early-stage NOx formation in turbulent pulverized coal combustion with fuel-bound nitrogen, Proceedings of the Combustion Institute, 2020.

  • Nicolai, H., Wen, Xu, Miranda, F., Zabrodiec, D., Maßmeyer, A., di Mare, F., Dreizler, A., Hasse, C., Kneer, R. and Janicka, J.Numerical investigation of swirl-stabilized pulverized coal flames in air and oxy-fuel atmospheres by means of large eddy simulation coupled with tabulated chemistry, Fuel: 119429, 2020.

  • Shamooni, A., Debiagi, P., Wang, B., Luu, T. D., Stein, O. T., Kronenburg, A., Bagheri, G., Stagni, A., Frassoldati, A., Faravelli, T., Kempf, A. M., Wen, Xu and Hasse, C.Carrier-phase DNS of detailed NOx formation in early-stage pulverized coal combustion with fuel-bound nitrogen, Fuel: (accepted), 2020.

  • Trespi, S., Nicolai, H., Debiagi, P., Janicka, J., Dreizler, A., Hasse, C. and Faravelli, T.Development and application of an efficient chemical reactor network model for oxy-fuel combustion, Energy & Fuels: (accepted), 2020.

  • Askarizadeh, H., Nicolai, H., Zabrodiec, D., Pielsticker, S., Hasse, C., Kneer, R. and Maßmeyer, A.Numerische Untersuchung zur Relevanz von Teilmodellen für Pyrolyse und Koksabbrand in turbulenten drallbehafteten Flammen unter Oxyfuel-Bedingungen, 30. Deutscher Flammentag, Hannover, Germany, 2021.

  • Locaspi, A., Debiagi, P., Pelucchi, M., Hasse, C. and Faravelli, T.A Predictive Physico-chemical Model of Biochar Oxidation, Energy & Fuels, 35 (18): 14894-14912, 2021.

  • Hasse, C., Debiagi, P., Wen, Xu, Hildebrandt, K., Vascellari, M. and Faravelli, T.Advanced modeling approaches for CFD simulations of coal combustion and gasification, Progress in Energy and Combustion Science, 86: 100938, 2021.

  • Wen, Xu, Stein, O. T., Debiagi, P., Scholtissek, A., Kronenburg, A., Kempf, A. M. and Hasse, C.Detailed simulations for flamelet modelling of SOx formation from coal, PAMM, 19 (1), 2019.

  • Nicolai, H., Debiagi, P., Wen, Xu, Dressler, L., Maßmeyer, A., Janicka, J. and Hasse, C.Flamelet LES of swirl-stabilized oxy-fuel flames using directly coupled multi-step solid fuel kinetics, Combustion and Flame, 241: 112062, 2022.

  • Berkel, L., Debiagi, P., Stagni, A., Nicolai, H., Hasse, C. and Faravelli, T.Fluidized bed reactor modelling using multiphase reactor networks, 44th Meeting of The Italian Section of The Combustion Institute, 2022.

  • Wang, B., Shamooni, A., Stein, O. T., Kronenburg, A., Kempf, A. M., Debiagi, P. and Hasse, C.Investigation of Turbulent Pulverized Solid Fuel Combustion with Detailed Homogeneous and Heterogeneous Kinetics, Energy & Fuels, 35 (9), 2021.

  • Farmand, P., Nicolai, H., Schumann, C., Attili, A., Berger, L., Li, T., Geschwindner, C., di Mare, F., Hasse, C., Böhm, B., Janicka, J. and Pitsch, H.Numerical investigation and assessment of flamelet-based models for the prediction of pulverized solid fuel homogeneous ignition and combustion, Combustion and Flame, 235: 111693, 2022.

  • Debiagi, P., Yildiz, C., Ströhle, J., Epple, B., Faravelli, T. and Hasse, C.Systematic evaluation and kinetic modeling of low heating rate sulfur release in various atmospheres, Fuel, 289: 119739, 2021.

  • Wen, Xu, Nicolai, H., Debiagi, P., Zabrodiec, D., Maßmeyer, A., Kneer, R. and Hasse, C.Flamelet LES of a 40 kWth pulverized torrefied biomass furnace in air and oxy-fuel atmospheres, Proceedings of the Combustion Institute, 2022.

Projects

Ruhr-Universitaet Bochum AG Quantenchemie

Contact

christof.haettig@rub.de

Publications

  • Influence of biomass torrefaction parameters on fast pyrolysis products under flame-equivalent conditions, Biomass and Bioenergy, 119: 392-410, 2018.

  • Density functional theory study of CO formation through reactions of polycyclic aromatic hydrocarbons with atomic oxygen (O(3P)), Fuel, 241: 851-860, 2019.

  • Computational Chemistry as a Tool for Predictive Combustion Modelling, 14th International Conference on Sustainable Development of Energy, Water and Environment Systems, Dubrovnik, Croatia, 2019.

  • Adsorption und Diffusion bei der Oxyfuel-Verbrennung von Festbrennstoffen: Vergleich von Experiment und MD-Simulation, 29. Deutscher Flammentag, 2019.

  • Adsorption and diffusion in oxyfuel combustion – Linking experiment and MD simulation through graphite structures as a first example, Diffusion Fundamentals 8, 2019.

  • Can small polyaromatics describe their larger counterparts for local reactions? A computational study on the H-abstraction reaction by an H-atom from polyaromatics, The Journal of Physical Chemistry A, 2020.

  • An automatized workflow from molecular dynamic simulation to quantum chemical methods to identify elementary reactions and compute reaction constants, Journal of Computational Chemistry, 2021.

Projects

Technische Universität Darmstadt Energie- und Kraftwerkstechnik

Contact

janicka@ekt.tu-darmstadt.de

Publications

  • Knappstein, R., Kuenne, G., Ketelheun, A., Köser, J., Becker, L., Heuer, S., Schiemann, M., Scherer, V., Dreizler, A., Sadiki, A. and Janicka, J.Devolatilization and volatiles reaction of individual coal particles in the context of FGM tabulated chemistry, Combustion and Flame, 169: 72-84, 2016. doi 

  • Doost, S., Ries, F., Becker, L., Bürkle, S., Wagner, S., Ebert, V., Dreizler, A., di Mare, F., Sadiki, A. and Janicka, J.Residence time calculations for complex swirling flow in a combustion chamber using large-eddy simulations, Chemical Engineering Science, 156: 97-114, 2016.

  • Becker, L., Kosaka, H., Böhm, B., Doost, S., Knappstein, R., Habermehl, M., Kneer, R., Janicka, J. and Dreizler, A.Experimental investigation of flame stabilization inside the quarl of an oxyfuel swirl burner, Fuel, 201: 124-135, 2017.

  • Köser, J., Knappstein, R., Goßmann, A-K., Becker, L., Böhm, B., Janicka, J. and Dreizler, A.An Experimental and Numerical Study of Volatile Combustion of Single Coal Particles in an Oxygen Enriched Atmosphere, 32nd Annual International Pittsburgh Coal Conference, Pittsburgh, Pennsylvania, USA, 2015.

  • Avdic, A., Künne, G., di Mare, F. and Janicka, J.LES combustion modeling using the Eulerian stochastic field method coupled with tabulated chemistry, Combustion and Flame, 175: 201-219, 2017.

  • Avdic, A., Künne, G. and Janicka, J.Flow Physics of a Bluff-Body Swirl Stabilized Flame and their Prediction by Means of a Joint Eulerian Stochastic Field and Tabulated Chemistry Approach, Flow, Turbulence and Combustion, 97 (4): 1185-1210, 2016.

  • Ketelheun, A., Mehdizadeh, A., Knappstein, R., Sadiki, A. and Janicka, J.Investigation of Unsteady Simulation Methods in an Oxyfuel Configuration, 27. Deutscher Flammentag, Clausthal-Zellerfeld, Germany, 2015.

  • Sadiki, A., Agrebi, S., Chrigui, M., Doost, S., Knappstein, R., di Mare, F., Janicka, J., Maßmeyer, A., Zabrodiec, D., Hees, J. and Kneer, R.Analyzing the effects of turbulence and multiphase treatments on oxy-coal combustion process predictions using LES and RANS, Chemical Engineering Science, 166: 283-302, 2017.

  • Miranda, F., di Mare, F., Sadiki, A. and Janicka, J.Performance analysis of different solvers for computing the radiative transfer equation in complex geometries using finite volume method and block structured grids, Computational Thermal Sciences: An International Journal, 9 (3): 269-282, 2017.

  • Agizza, M. A., Bürkle, S., Becker, L., Greifenstein, M., Bagheri, G., Doost, S., Faravelli, T., Janicka, J., Wagner, S. and Dreizler, A.Reactor network modelling of a close to reality combustor using residence time measurements, 10th Mediterranean Combustion Symposium, 2017.

  • Knappstein, R., Künne, G., Becker, L., di Mare, F., Sadiki, A., Dreizler, A. and Janicka, J.Large Eddy Simulation of a Novel Gas-Assisted Coal Combustion Chamber, Flow, Turbulence and Combustion, 101 (3): 895-926, 2018.

  • Knappstein, R., Künne, G., Meier, T., Sadiki, A. and Janicka, J.Evaluation of coal particle volatiles reaction by using detailed kinetics and FGM tabulated chemistry, Fuel, 201: 39-52, 2017.

  • Hidouri, A., Chrigui, M., Boushaki, T., Sadiki, A. and Janicka, J.Large eddy simulation of two isothermal and reacting turbulent separated oxy-fuel jets, Fuel, 192: 108-120, 2017.

  • Knappstein, R., Künne, G., Nicolai, H., di Mare, F., Sadiki, A. and Janicka, J.Description of the char conversion process in coal combustion based on premixed FGM chemistry, Fuel, 236: 124-134, 2019.

  • Knappstein, R., Künne, G., Sadiki, A. and Janicka, J.Flamelet-Tabellierung im Kontext der Simulation von Kohlestaubverbrennung, 28. Deutscher Flammentag, 2017.

  • Mehdizadeh, A., Doost, S., Sadiki, A., Janicka, J. and Karimi, N.Assessment of predictive capability of hybrid URANS/LES methods in residence time calculation, Chemical Engineering Science, 183: 47-59, 2018.

  • Miranda, F., Coelho, P. J., di Mare, F. and Janicka, J.Study of turbulence-radiation interactions in large-eddy simulation of scaled Sandia flame D, Journal of Quantitative Spectroscopy and Radiative Transfer, 228: 47-56, 2019.

  • Debiagi, P., Nicolai, H., Han, W., Janicka, J. and Hasse, C.Towards predictive CFD simulations of coal combustion – using Machine Learning for efficient representation of solid fuel kinetics, 9th International Symposium on Coal Combustion, 2019.

  • Debiagi, P., Nicolai, H., Han, W., Janicka, J. and Hasse, C.Machine learning for predictive coal combustion CFD simulations—From detailed kinetics to HDMR Reduced-Order models, Fuel, 274: 117720, 2020.

  • Wen, Xu, Nicolai, H., Schneider, H., Cai, L., Janicka, J., Pitsch, H. and Hasse, C.Flamelet LES of a swirl-stabilized multi-stream pulverized coal burner in air and oxy-fuel atmospheres with pollutant formation, Proceedings of the Combustion Institute, 2020.

  • Nicolai, H., Li, T., Geschwindner, C., di Mare, F., Hasse, C., Böhm, B. and Janicka, J.Numerical investigation of pulverized coal particle group combustion using tabulated chemistry, Proceedings of the Combustion Institute, 2020.

  • Wen, Xu, Nicolai, H., Stein, O. T., Janicka, J., Kronenburg, A. and Hasse, C.Effects of air and oxy-fuel atmospheres on flamelet modeling of pollutant formation in laminar counterflow solid fuel flames, Fuel, 285: 119079, 2021.

  • Fraga, G. C., Miranda, F., Franca, F. H. R., Janicka, J. and Coelho, P. J.Assessment of a model for emission subgrid-Scale turbulence-Radiation interaction applied to a scaled sandia flame DD, Journal of Quantitative Spectroscopy and Radiative Transfer, 248: 106986, 2020.

  • Miranda, F., Coelho, P. J., Ströhle, J. and Janicka, J.Large-eddy simulation of a bluff-body stabilised nonpremixed flame with radiation heat transfer, Combustion Theory and Modelling, 133: 1-18, 2020.

  • Nicolai, H., Doost, S., di Mare, F., Hasse, C. and Janicka, J.Large Eddy Simulation of pulverized coal combustion under oxy atmospheres using tabulated chemistry, 12th European Conference on Industrial Furnaces and Boilers : INFUB 12, 2020.

  • Nicolai, H., Künne, G., Knappstein, R., di Mare, F. and Janicka, J.Entwicklung einer Simulationsmethode zur Beschreibung der Feststoffverbrennung in Oxy-Atmosphären auf Basis tabellierten Chemie, 29. Deutscher Flammentag, Bochum, Germany, 2019.

  • Nicolai, H., Künne, G., Knappstein, R., Schneider, H., Becker, L., Hasse, C., di Mare, F., Dreizler, A. and Janicka, J.Large Eddy Simulation of a laboratory-scale gas-assisted pulverized coal combustion chamber under oxy-fuel atmospheres using tabulated chemistry, Fuel, 272: 117683, 2020.

  • Nicolai, H., Wen, Xu, Miranda, F., Zabrodiec, D., Maßmeyer, A., di Mare, F., Dreizler, A., Hasse, C., Kneer, R. and Janicka, J.Numerical investigation of swirl-stabilized pulverized coal flames in air and oxy-fuel atmospheres by means of large eddy simulation coupled with tabulated chemistry, Fuel: 119429, 2020.

  • Trespi, S., Nicolai, H., Debiagi, P., Janicka, J., Dreizler, A., Hasse, C. and Faravelli, T.Development and application of an efficient chemical reactor network model for oxy-fuel combustion, Energy & Fuels: (accepted), 2020.

  • Nicolai, H., Debiagi, P., Wen, Xu, Dressler, L., Maßmeyer, A., Janicka, J. and Hasse, C.Flamelet LES of swirl-stabilized oxy-fuel flames using directly coupled multi-step solid fuel kinetics, Combustion and Flame, 241: 112062, 2022.

  • Farmand, P., Nicolai, H., Schumann, C., Attili, A., Berger, L., Li, T., Geschwindner, C., di Mare, F., Hasse, C., Böhm, B., Janicka, J. and Pitsch, H.Numerical investigation and assessment of flamelet-based models for the prediction of pulverized solid fuel homogeneous ignition and combustion, Combustion and Flame, 235: 111693, 2022.

Projects

RWTH Aachen University Lehrstuhl für Wärme- und Stoffübertragung

RWTH Aachen University Lehrstuhl für Wärme- und Stoffübertragung

Contact

kneer@wsa.rwth-aachen.de

Publications

  • Zabrodiec, D., Maßmeyer, A., Hees, J., Gronarz, T., Gövert, B., Höfler, M., Ohliger, A., Habermehl, M., Hatzfeld, O. and Kneer, R.Experimental Characterization of the effect of Dry Recirculation on a Swirled Self-Stabilized Oxycoal Flame, 31st Annual International Pittsburgh Coal Conference, Pittsburgh, Pennsylvania, USA, 2014.

  • Hees, J., Zabrodiec, D., Maßmeyer, A., Hatzfeld, O. and Kneer, R.Experimental Investigation and Comparison of Pulverized Coal Combustion in CO2/O2- and N2/O2-Atmospheres, SPEIC: Towards Sustainable Combustion, Lisbon, Portugal, 2014.

  • Habermehl, M., Hees, J., Maßmeyer, A., Zabrodiec, D., Hatzfeld, O. and Kneer, R.Comparison of Flame Stability Under Air and Oxy-Fuel Conditions for an Aerodynamically Stabilized Pulverized Coal Swirl Flame, Journal of Energy Resources Technology, 138 (4): 042209, 2016.

  • Gövert, B., Pielsticker, S., Vorobiev, N., Heuer, S., Hatzfeld, O., Kneer, R., Schiemann, M. and Scherer, V.Examination of Pyrolysis and Char Burnout in Oxyfuel Atmosphere Using Plug Flow and Well Stirred Reactor Type Systems, 18th IFRF Members conference, Freising, Germany, 2015.

  • Hees, J., Zabrodiec, D., Maßmeyer, A., Habermehl, M. and Kneer, R.Experimental Investigation and Comparison of Pulverized Coal Combustion in CO2/O2- and N2/O2-Atmospheres, Flow, Turbulence and Combustion, 96 (2): 417-431, 2015.

  • Haustein, H. D., Kreitzberg, T., Gövert, B., Maßmeyer, A. and Kneer, R.Establishment of kinetic parameters of particle reaction from a well-stirred fluidized bed reactor, Fuel, 158: 263-269, 2015.

  • Hees, J., Zabrodiec, D., Maßmeyer, A., Pielsticker, S., Gövert, B., Habermehl, M., Hatzfeld, O. and Kneer, R.Detailed analyzes of pulverized coal swirl flames in oxy-fuel atmospheres, Combustion and Flame, 172: 289-301, 2016.

  • Pielsticker, S., Heuer, S., Senneca, O., Cerciello, F., Salatino, P., Cortese, L., Gövert, B., Hatzfeld, O., Schiemann, M., Scherer, V. and Kneer, R.Comparison of pyrolysis test rigs for oxy-fuel conditions, Fuel Processing Technology, 156: 461-472, 2017. doi 

  • Pielsticker, S., Gövert, B., Kreitzberg, T., Habermehl, M., Hatzfeld, O. and Kneer, R.Simultaneous investigation into the yields of 22 pyrolysis gases from coal and biomass in a small-scale fluidized bed reactor, Fuel, 190: 420-434, 2017.

  • Kreitzberg, T., Gövert, B., Pielsticker, S. and Kneer, R.CO2 and H2O Gasification under Chemically and Diffusion Controlled Conditions, 33rd Annual International Pittsburgh Coal Conference, Cape Town, South Africa, 2016.

  • Gronarz, T., Schnell, M., Siewert, C., Schneiders, L., Schröder, W. and Kneer, R.Comparison of scattering behaviour for spherical and non-spherical particles in pulverized coal combustion, International Journal of Thermal Sciences, 111: 116-128, 2017.

  • Becker, L., Kosaka, H., Böhm, B., Doost, S., Knappstein, R., Habermehl, M., Kneer, R., Janicka, J. and Dreizler, A.Experimental investigation of flame stabilization inside the quarl of an oxyfuel swirl burner, Fuel, 201: 124-135, 2017.

  • Zabrodiec, D., Hees, J., Maßmeyer, A., vom Lehn, F., Habermehl, M., Hatzfeld, O. and Kneer, R.Experimental investigation of pulverized coal flames in CO2/O2- and N2/O2-atmospheres: Comparison of solid particle radiative characteristics, Fuel, 201: 136-147, 2017.

  • Habermehl, M., Hees, J., Zabrodiec, D. and Kneer, R.Charakterisierung ähnlicher, aerodynamisch bestimmter Flammenzustände eines Kohlenstaub-Drallbrenners im Luft- und Oxyfuel-Betrieb, 27. Deutscher Flammentag, Clausthal-Zellerfeld, Germany, 2015.

  • Gronarz, T., Schulze, J., Laemmerhold, M., Graeser, P., Gorewoda, J., Kez, V., Habermehl, M., Schiemann, M., Ströhle, J., Epple, B., Scherer, V. and Kneer, R.Quantification of the influence of parameters determining radiative heat transfer in an oxy-fuel operated boiler, Fuel Processing Technology, 157: 76-89, 2017.

  • Gronarz, T., Habermehl, M. and Kneer, R.Modeling of particle radiation interaction in solid fuel combustion with artificial neural networks, Journal of Power Technologies, 96 (3): 206-211, 2016.

  • Gronarz, T., Habermehl, M. and Kneer, R.Modeling of particle radiative properties in coal combustion depending on burnout, Heat and Mass Transfer, 53 (4): 1225-1235, 2017.

  • Gronarz, T., Habermehl, M. and Kneer, R.Approximations for particle scattering phase functions in solid fuel combustion, 41st International Technical Conference on Clean Coal & Fuel Systems, Clearwater, Florida, USA, 2016.

  • Gronarz, T. and Kneer, R.Modellierung der Streuung und Absorption von Wärmestrahlung an Partikeln bei der Verbrennung von Kohlenstaub, Jahrestreffen der Fachgruppe Wärme- und Stoffübertragung, Kassel, Germany, 2016.

  • Gronarz, T., Habermehl, M., Hatzfeld, O. and Kneer, R.Investigation of modelling approaches for scattering and absorption properties of particles in pulverized coal combustion, Industrial Combustion (Article Number 201602), 2016.

  • Zabrodiec, D., Becker, L., Hees, J., Maßmeyer, A., Habermehl, M., Hatzfeld, O., Dreizler, A. and Kneer, R.Detailed Analysis of the Velocity Fields from 60 kW Swirl-Stabilized Coal Flames in CO2/O2- and N2/O2-Atmospheres by Means of Laser Doppler Velocimetry and Particle Image Velocimetry, Combustion Science and Technology, 189 (10): 1751-1775, 2017.

  • Sadiki, A., Agrebi, S., Chrigui, M., Doost, S., Knappstein, R., di Mare, F., Janicka, J., Maßmeyer, A., Zabrodiec, D., Hees, J. and Kneer, R.Analyzing the effects of turbulence and multiphase treatments on oxy-coal combustion process predictions using LES and RANS, Chemical Engineering Science, 166: 283-302, 2017.

  • Becker, L., von Langenthal, T., Pielsticker, S., Böhm, B., Kneer, R. and Dreizler, A.Experimental investigation of particle-laden flows in an oxy-coal combustion chamber for non-reacting conditions, Fuel, 235: 753-762, 2019.

  • Gronarz, T., Habermehl, M. and Kneer, R.Influence of Approximations for Particle Scattering Phase Functions on Heat Transfer, 10th Mediterranean Combustion Symposium, 2017.

  • Gronarz, T., Schiemann, M. and Kneer, R.Sensitivity Analysis for Parameters for Radiative Heat Transfer in a 3-D pulverized Coal Combustion Scenario, Eurotherm Seminar 110 – Computational Thermal Radiation in Participating Media – VI, Cascais, Portugal, 2018.

  • Gronarz, T., Johansson, R. and Kneer, R.Modeling of Anisotropic Scattering of Thermal Radiation in Pulverized Coal Combustion, Journal of Heat Transfer, 140 (6): 062701, 2018.

  • Influence of biomass torrefaction parameters on fast pyrolysis products under flame-equivalent conditions, Biomass and Bioenergy, 119: 392-410, 2018.

  • Gövert, B., Pielsticker, S., Hatzfeld, O. and Kneer, R.Bestimmung der Koksabbrand-Kinetik in einem Wirbelschichtreaktor am Beispiel einer kolumbianischen Steinkohle, 28. Deutscher Flammentag, Darmstadt, Germany, 2017.

  • Gövert, B., Pielsticker, S., Kreitzberg, T., Habermehl, M., Hatzfeld, O. and Kneer, R.Measurement of reaction rates for pulverized fuel combustion in air and oxyfuel atmosphere using a novel fluidized bed reactor setup, Fuel, 201: 81-92, 2017.

  • Kreitzberg, T., Bormann, C., Pielsticker, S., Hatzfeld, O. and Kneer, R.Thermal deactivation of biogenic and fossil fuels: Experimental investigation and modeling approaches, Energy Procedia, 158: 2025-2030, 2019. doi 

  • Kreitzberg, T., Haustein, H. D., Gövert, B. and Kneer, R.Investigation of Gasification Reaction of Pulverized Char Under N2/CO2 Atmosphere in a Small-Scale Fluidized Bed Reactor, Journal of Energy Resources Technology, 138 (4): 042207, 2016.

  • Kreitzberg, T., Pielsticker, S., Hatzfeld, O. and Kneer, R.Reactivity of biochar gasification in atmospheres of steam, carbon dioxide and their mixtures, Joint Meeting the German and Italian Sections of the Combustion Institute, 2018.

  • Krusch, S., Scherer, V., Solimene, R., Ruoppolo, G., Cerciello, F., Pielsticker, S., Kneer, R., Schlögel, K. U. and Senneca, O.Comparison of different diagnostic techniques for the assessment of coal pyrolysis rate, Joint Meeting the German and Italian Sections of the Combustion Institute, 2018.

  • Pielsticker, S., Gövert, B., Kreitzberg, T., Habermehl, M., Hatzfeld, O. and Kneer, R.Theoretical and experimental evaluation of a fast fluidized bed reactor for the investigation of combustion reactions, 10th Mediterranean Combustion Symposium, 2017.

  • Pielsticker, S., Gövert, B., Kreitzberg, T., Habermehl, M., Hatzfeld, O. and Kneer, R.Development of a rapidly responding fluidized bed reactor by theoretical and experimental evaluation of combustion reactions, Fuel, 223: 462-469, 2018.

  • Pielsticker, S., Gövert, B., Möller, G. H., Hatzfeld, O. and Kneer, R.Impact of Torrefaction on Flash Pyrolysis Products of Biomass and Comparison to Fossil Fuels, 11th Asia-Pacific Conference on Combustion, 2017.

  • Pielsticker, S., Schlögel, K. U., Kreitzberg, T., Hatzfeld, O. and Kneer, R.Measurement of beech wood pyrolysis kinetics in a fluidized bed reactor, Joint Meeting the German and Italian Sections of the Combustion Institute, 2018.

  • Hees, J., Bürkle, S., Becker, L., Zabrodiec, D., Wagner, S., Dreizler, A. and Kneer, R.A complementary approach for the experimental investigation of solid oxy-fuel combustion using optical diagnostics, 2nd International Workshop on Oxy-fuel Combustion, 2018.

  • Hees, J., Zabrodiec, D., Maßmeyer, A., Hatzfeld, O., Habermehl, M. and Kneer, R.Kohlenstaubverbrennung in Oxyfuel-Atmosphäre: Einfluss der Oxidatorzusammensetzung auf den Verbrennungsprozess, 28. Deutscher Flammentag, 2017.

  • Hees, J., Zabrodiec, D., Maßmeyer, A., Hatzfeld, O. and Kneer, R.Experimental investigation into the influence of the oxygen concentration on a pulverized coal swirl flame in oxy-fuel atmosphere, Fuel, 240: 64-74, 2019.

  • Möller, G. H., Maßmeyer, A., Hees, J., Zabrodiec, D., Habermehl, M. and Kneer, R.Chemiluminescence measurements in a pulverized fuel furnace of pure torrefied biomasses in comparison to solid fossil fuels, 42nd International Technical Conference on Clean Energy, Clearwater, Florida, USA, 2017.

  • Zabrodiec, D., Hees, J., Maßmeyer, A., Hatzfeld, O. and Kneer, R.Experimental Investigation and Comparison of radiative characteristics of Pulverized Coal Flames in CO2/O2- and N2/O2-Atmospheres, 1st International Workshop on Oxy-Fuel Combustion, 2016.

  • Zabrodiec, D., Hees, J., Maßmeyer, A. and Kneer, R.Progress and Challenges in Flow Field Studies of 40–60 kWth Pulverized Coal Flames, Joint Meeting the German and Italian Sections of the Combustion Institute, Sorrento, Italy, 2018.

  • Zabrodiec, D., Hees, J., Möller, G. H., Hatzfeld, O. and Kneer, R.Pulverized coal swirl flames in oxy-fuel conditions: Effects of oxidizer O2 concentration on flow field and local gas composition, Proceedings of the Combustion Institute, 2018.

  • Kez, V., Consalvi, J-L., Liu, F., Gronarz, T., Ströhle, J., Kneer, R. and Epple, B.Investigation of gas and particle radiation modelling in wet oxy-coal combustion atmospheres, International Journal of Heat and Mass Transfer, 133: 1026-1040, 2019.

  • Gronarz, T., Hatzfeld, O., Habermehl, M. and Kneer, R.On the importance of particle radiation interaction in the numerical simulation of pulverized coal combustion, 10th European Conference on Industrial Furnaces and Boilers : INFUB 10, Porto, Portugal, 2015.

  • Gronarz, T., Höges, C., Kez, V., Habermehl, M. and Kneer, R.Comparison of scattering behaviour for inhomogeneous particles in pulverized coal combustion, International Journal of Thermal Sciences, 140: 1-7, 2019.

  • Johansson, R., Gronarz, T. and Kneer, R.Influence of Index of Refraction and Particle Size Distribution on Radiative Heat Transfer in a Pulverized Coal Combustion Furnace, Journal of Heat Transfer, 139 (4): 042702, 2017.

  • Schiemann, M., Gronarz, T., Graeser, P., Gorewoda, J., Kneer, R. and Scherer, V.A correlation between char emissivity and temperature, Fuel, 256: 115889, 2019.

  • Kreitzberg, T., Phounglamcheik, A., Haugen, N. E. L., Kneer, R. and Umeki, K.A Shortcut Method to Predict Particle Size Changes during Char Combustion and Gasification under regime II Conditions, Combustion Science and Technology: 1-20, 2019.

  • Pielsticker, S., Senneca, O., Kreitzberg, T., Cerciello, F., Hatzfeld, O. and Kneer, R.Comparability and validity range of pyrolysis kinetics from Chinese coals obtained with different experimental setups, 9th International Symposium on Coal Combustion, 2019.

  • Pielsticker, S., Schlögel, K. U., Kreitzberg, T., Hatzfeld, O. and Kneer, R.Biomass pyrolysis kinetics in a fluidized bed reactor: Measurements and plausibility verification for reaction conditions, Fuel, 254: 115589, 2019.

  • Pielsticker, S., Ontyd, C., Kreitzberg, T., Hatzfeld, O., Schiemann, M., Scherer, V. and Kneer, R.Adaptation of the Chemical Percolation Devolatilization Model for Low Temperature Pyrolysis in a Fluidized Bed Reactor, Combustion Science and Technology, 52: 1-18, 2019.

  • Pielsticker, S., Kreitzberg, T., Hatzfeld, O. and Kneer, R.Using the Chemical Percolation Devolatilization Model for Analysis of Pyrolysis Kinetics in a Fluidized Bed Reactor, 11th Mediterranean Combustion Symposium, 2019.

  • Kreitzberg, T., Wirch, N., Bormann, C., Pielsticker, S., Hatzfeld, O., Mayer, J. and Kneer, R.Thermally induced changes in microstructure and reactivity of biogenic and fossil fuel particles, Applied Energy, 254: 113607, 2019.

  • Kreitzberg, T., Phounglamcheik, A., Bormann, C., Kneer, R. and Umeki, K.The Change in Size of Char Particles During Combustion and Gasification in Regime II, 11th Mediterranean Combustion Symposium, 2019.

  • Kreitzberg, T., Eckhard, T., Pielsticker, S., Muhler, M. and Kneer, R.Änderung von Struktur und Reaktivität durch Pyrolyse fester Brennstoffe, 29. Deutscher Flammentag, 2019.

  • Debiagi, P., Ontyd, C., Heuer, S., Pielsticker, S., Schiemann, M., Faravelli, T., Kneer, R., Scherer, V. and Hasse, C.Solid Fuel Kinetics for Oxy-Fuel conditions, 29. Deutscher Flammentag, 2019.

  • Schneider, H., Becker, L., Pielsticker, S., Böhm, B., Kneer, R. and Dreizler, A.Experimental investigation and comparison of particle-laden flows in a gas-assisted oxycoal combustion chamber for reacting and non-reacting conditions, 9th European Combustion Meeting, 2019.

  • Zabrodiec, D., Maßmeyer, A., Hees, J., Hatzfeld, O. and Kneer, R.Flow Pattern and Behavior of 40 kWth Pulverized Torrefied Biomass Flames under Atmospheric and Oxy-fuel Conditions, 14th International Conference on Sustainable Development of Energy, Water and Environment Systems, 2019.

  • Maßmeyer, A., Zabrodiec, D., Hees, J., Kreitzberg, T., Hatzfeld, O. and Kneer, R.Flame Pattern Analysis for 60 kWth Flames under Conventional Air-Fired and Oxy-Fuel Conditions for Two Different Types of Coal, 9th International Symposium on Coal Combustion, 2019.

  • Kez, V., Consalvi, J-L., Liu, F., Koch, M., von Bohnstein, M., Ströhle, J., Hatzfeld, O. and Kneer, R.Entwicklung eines Weighted-Sum-of-Gray-Gases Modells zur Berücksichtigung nicht-grauer Strahlungseigenschaften von Partikeln in Feststoffverbrennungen, 29. Deutscher Flammentag, Bochum, Germany, 2019.

  • Becker, L., Pielsticker, S., Böhm, B., Kneer, R. and Dreizler, A.Particle dynamics in a gas assisted coal combustion chamber using advanced laser diagnostics, Fuel, 269: 117188, 2020.

  • Debiagi, P., Ontyd, C., Pielsticker, S., Schiemann, M., Faravelli, T., Kneer, R., Hasse, C. and Scherer, V.Calibration and Validation of a Comprehensive Kinetic Model of Coal Conversion in Inert, Air and Oxy-Fuel Conditions Using Data from Multiple Test Rigs, Fuel: (accepted), 2020.

  • Kreitzberg, T., Pielsticker, S. and Kneer, R.Einfluss von erhöhtem Druck bei Pyrolyse, Abbrand und Vergasung alternativer Brennstoffe, Jahrestreffen der ProcessNet-Fachgruppe Wärme- und Stoffübertragung, 2020.

  • Kreitzberg, T., Pielsticker, S. and Kneer, R.Influence of oxygen and water vapor on the thermochemical conversion of fossil, biogenic and surrogate fuels, 3rd International Workshop on Oxy-Fuel Combustion, 2020.

  • Ontyd, C., Pielsticker, S., Yildiz, C., Schiemann, M., Hatzfeld, O., Ströhle, J., Epple, B., Kneer, R. and Scherer, V.Experimental determination of walnut shell pyrolysis kinetics in N2 and CO2 via thermogravimetric analysis, fluidized bed and drop tube reactors, Fuel: 119313, 2020.

  • Gövert, B., Kreitzberg, T., Pielsticker, S. and Kneer, R.A1 – Experimental investigation of pyrolysis and char burnout kinetics in a Well-Stirred-Reactor under flames and burnout conditions, 2nd International Workshop on Oxy-fuel Combustion, 2018.

  • Schneider, H., Valentiner, S., Vorobiev, N., Böhm, B., Schiemann, M., Scherer, V., Kneer, R. and Dreizler, A.Investigation on flow dynamics and temperatures of solid fuel particles in a gas-assisted oxy-fuel combustion chamber, Fuel, 286: 119424, 2021.

  • Schneider, H., Böhm, B., Kneer, R. and Dreizler, A.B4 – Visualization and analysis of solid fuel particle tracectories in a gas-assisted oxy-fuel combustion chamber, 3rd International Workshop on Oxy-Fuel Combustion, 2020.

  • Askarizadeh, H., Zabrodiec, D., Maßmeyer, A., Kreitzberg, T. and Kneer, R.Numerical simulation of swirl oxy-coal combustion in a 60 kW Test Facility using the SST k-ω turbulence model, 3rd International Workshop on Oxy-Fuel Combustion, 2020.

  • Maßmeyer, A., Zabrodiec, D., Dreizler, A. and Kneer, R.Stability Analysis of 60 kWth Coal Flames under Air and Oxyfuel Conditions, 3rd International Workshop on Oxy-Fuel Combustion, Montabaur, Germany, 2020.

  • Maßmeyer, A., Zabrodiec, D., Hees, J., Kreitzberg, T., Hatzfeld, O. and Kneer, R.Flame pattern analysis for 60 kWth flames under conventional air-fired and oxy-fuel conditions for two different types of coal, Fuel, 271: 117457, 2020.

  • Nicolai, H., Wen, Xu, Miranda, F., Zabrodiec, D., Maßmeyer, A., di Mare, F., Dreizler, A., Hasse, C., Kneer, R. and Janicka, J.Numerical investigation of swirl-stabilized pulverized coal flames in air and oxy-fuel atmospheres by means of large eddy simulation coupled with tabulated chemistry, Fuel: 119429, 2020.

  • Zabrodiec, D., Maßmeyer, A., Hees, J., Hatzfeld, O. and Kneer, R.Flow pattern and behavior of 40 kWth pulverized torrefied biomass flames under atmospheric and oxy-fuel conditions, Renewable and Sustainable Energy Reviews, 138: 110493, 2021.

  • Koch, M., Pörtner, L., Gu, Y., Schiemann, M., Rohlfs, W. and Kneer, R.Comparison of scattering phase functions of reacting and non-reacting pulverised fuel particles, Fuel: 119415, 2020.

  • Askarizadeh, H., Nicolai, H., Zabrodiec, D., Pielsticker, S., Hasse, C., Kneer, R. and Maßmeyer, A.Numerische Untersuchung zur Relevanz von Teilmodellen für Pyrolyse und Koksabbrand in turbulenten drallbehafteten Flammen unter Oxyfuel-Bedingungen, 30. Deutscher Flammentag, Hannover, Germany, 2021.

  • Kez, V., Consalvi, J-L., Liu, F., Koch, M., Hatzfeld, O. and Kneer, R.Development of a Weighted-Sum-of-Gray-Gases Model for Modeling Radiative Heat Transfer in Coal-Fired Oxy-Fuel Boilers, 9th International Symposium on Radiative Transfer, 2019.

  • Koch, M., Pielsticker, S. and Kneer, R.Einfluss inhomogener Partikelverteilungen innerhalb dichter Partikelwolken auf die Wärmestrahlung bei der Feststoffverbrennung, 30. Deutscher Flammentag, 2021.

  • Koch, M., Jörg, J., Zabrodiec, D., Schnell, M., Hatzfeld, O. and Kneer, R.Entwicklung eines Experimentes zur Messung der Streuung von Wärmestrahlung an akustisch levitierenden Partikeln, 29. Deutscher Flammentag, 2019.

  • Özer, B., Maßmeyer, A., Zabrodiec, D., Hatzfeld, O. and Kneer, R.Experimental Study on the Influence of Methane-Cofiring on Pulverized Coal Flames under Air and Oxy-Fuel Conditions, 30. Deutscher Flammentag, 2021.

  • Pielsticker, S., Gövert, B., Umeki, K. and Kneer, R.Flash Pyrolysis Kinetics of Extracted Lignocellulosic Biomass Components, Frontiers in Energy Research, 9, 2021.

  • Askarizadeh, H., Lotfollahzadeh, A., Wolfersdorf, C., Pielsticker, S. and Kneer, R.Modeling of a Pilot Plant for Entrained Flow Gasification of Fuel Mixtures Containing Sewage Sludge, 13th European Conference on Industrial Furnaces and Boilers, 2022.

  • Schneider, H., Becker, L., Kneer, R. and Dreizler, A.Visualisierung und Analyse von Gasphasengeschwindigkeit und Partikeltrajektorien in einem gasassistierten Oxyfuel-Staubbrenner, 29. Deutscher Flammentag, 2019.

  • Kreitzberg, T., Haustein, H. D., Gövert, B. and Kneer, R.Investigation of gasification reaction of pulverized char under N2/CO2 atmosphere in a small-scale fluidized bed reactor, 40th International Technical Conference on Clean Coal & Fuel Systems, Clearwater, Florida, USA, 2015.

  • Habermehl, M., Hees, J., Zabrodiec, D. and Kneer, R.Comparison of Flame Stability under Air and Oxy-Fuel Conditions for an Aerodynamically Stabilized Pulverized Coal Swirl Flame, 40th International Technical Conference on Clean Coal & Fuel Systems, Clearwater, Florida, USA, 2015.

  • Özer, B., Zabrodiec, D., Kneer, R. and Maßmeyer, A.Experimental investigation of 40 kWth methane-assisted and self-sustained pulverized biomass flames, Proceedings of the Combustion Institute, 2022.

  • Wen, Xu, Nicolai, H., Debiagi, P., Zabrodiec, D., Maßmeyer, A., Kneer, R. and Hasse, C.Flamelet LES of a 40 kWth pulverized torrefied biomass furnace in air and oxy-fuel atmospheres, Proceedings of the Combustion Institute, 2022.

Projects

RWTH Aachen University Lehrstuhl für Wärme- und Stoffübertragung

Contact

koch@wsa.rwth-aachen.de

Publications

  • Kez, V., Consalvi, J-L., Liu, F., Koch, M., von Bohnstein, M., Ströhle, J., Hatzfeld, O. and Kneer, R.Entwicklung eines Weighted-Sum-of-Gray-Gases Modells zur Berücksichtigung nicht-grauer Strahlungseigenschaften von Partikeln in Feststoffverbrennungen, 29. Deutscher Flammentag, Bochum, Germany, 2019.

  • Koch, M., Pörtner, L., Gu, Y., Schiemann, M., Rohlfs, W. and Kneer, R.Comparison of scattering phase functions of reacting and non-reacting pulverised fuel particles, Fuel: 119415, 2020.

  • Kez, V., Consalvi, J-L., Liu, F., Koch, M., Hatzfeld, O. and Kneer, R.Development of a Weighted-Sum-of-Gray-Gases Model for Modeling Radiative Heat Transfer in Coal-Fired Oxy-Fuel Boilers, 9th International Symposium on Radiative Transfer, 2019.

  • Koch, M., Pielsticker, S. and Kneer, R.Einfluss inhomogener Partikelverteilungen innerhalb dichter Partikelwolken auf die Wärmestrahlung bei der Feststoffverbrennung, 30. Deutscher Flammentag, 2021.

  • Koch, M., Jörg, J., Zabrodiec, D., Schnell, M., Hatzfeld, O. and Kneer, R.Entwicklung eines Experimentes zur Messung der Streuung von Wärmestrahlung an akustisch levitierenden Partikeln, 29. Deutscher Flammentag, 2019.

Projects

Technische Universität Darmstadt Reaktive Strömungen und Messtechnik

Contact

tao.li@rsm.tu-darmstadt.de

Publications

  • Köser, J., Li, T., Vorobiev, N., Dreizler, A., Schiemann, M. and Böhm, B.Multi-parameter diagnostics for high-resolution in-situ measurements of single coal particle combustion, Proceedings of the Combustion Institute, 37 (3): 2893-2900, 2019.

  • Pareja, J., Johchi, A., Li, T., Dreizler, A. and Böhm, B.A study of the spatial and temporal evolution of auto-ignition kernels using time-resolved tomographic OH-LIF, Proceedings of the Combustion Institute, 37 (2): 1321-1328, 2019.

  • Li, T., Pareja, J., Fuest, F., Schütte, M., Zhou, Y., Dreizler, A. and Böhm, B.Tomographic imaging of OH laser-induced fluorescence in laminar and turbulent jet flames, Measurement Science and Technology, 29 (1): 015206, 2018.

  • Li, T., Pareja, J., Becker, L., Heddrich, W., Dreizler, A. and Böhm, B.Quasi-4D laser diagnostics using an acousto-optic deflector scanning system, Applied Physics B, 123 (3): 1243, 2017.

  • Li, T., Köser, J., Schiemann, M., Dreizler, A. and Böhm, B.Untersuchungen der Verbrennung von Einzelpartikeln und Partikelgruppen mit zeitaufgelöster volumetrischer Messung des OH-Radikals, 29. Deutscher Flammentag, 2019.

  • Li, T., Köser, J., Dreizler, A., Schiemann, M. and Böhm, B.Time-resolved volumetric measurement of OH radicals on single particle and particle group combustion, 14th International Conference on Sustainable Development of Energy, Water and Environment Systems, 2019.

  • Attili, A., Farmand, P., Schumann, C., Farazi, S., Böhm, B., Li, T., Geschwindner, C., Köser, J., Dreizler, A. and Pitsch, H.Numerical Simulations and Experiments of Ignition of Solid Particles in a Laminar Burner: Effects of Slip Velocity and Particle Swelling, Flow, Turbulence and Combustion, 2020.

  • Li, T., Schiemann, M., Köser, J., Dreizler, A. and Böhm, B.Experimental investigations of single particle and particle group combustion in a laminar flow reactor using simultaneous volumetric OH-LIF imaging and diffuse backlight-illumination, Renewable and Sustainable Energy Reviews, 136: 110377, 2021.

  • Li, T., Geschwindner, C., Köser, J., Schiemann, M., Dreizler, A. and Böhm, B.Investigation of the transition from single to group coal particle combustion using high-speed scanning OH-LIF and diffuse backlight-illumination, Proceedings of the Combustion Institute, 2020.

  • Li, T., Zhou, Bo, Frank, J. H., Dreizler, A. and Böhm, B.High-speed volumetric imaging of formaldehyde in a lifted turbulent jet flame using an acousto-optic deflector, Experiments in Fluids, 61 (4): 2903, 2020.

  • Nicolai, H., Li, T., Geschwindner, C., di Mare, F., Hasse, C., Böhm, B. and Janicka, J.Numerical investigation of pulverized coal particle group combustion using tabulated chemistry, Proceedings of the Combustion Institute, 2020.

  • Zhou, Bo, Li, T., Frank, J. H., Dreizler, A. and Böhm, B.Simultaneous 10 kHz three-dimensional CH2O and tomographic PIV measurements in a lifted partially-premixed jet flame, Proceedings of the Combustion Institute, 2020.

  • Li, T., Farmand, P., Geschwindner, C., Greifenstein, M., Köser, J., Schumann, C., Attili, A., Pitsch, H., Dreizler, A. and Böhm, B.Homogeneous ignition and volatile combustion of single solid fuel particles in air and oxy-fuel conditions, Fuel, 291, 2021.

  • Farmand, P., Nicolai, H., Schumann, C., Attili, A., Berger, L., Li, T., Geschwindner, C., di Mare, F., Hasse, C., Böhm, B., Janicka, J. and Pitsch, H.Numerical investigation and assessment of flamelet-based models for the prediction of pulverized solid fuel homogeneous ignition and combustion, Combustion and Flame, 235: 111693, 2022.

  • Tarlinski, D., Geschwindner, C., Li, T., Böhm, B. and Schiemann, M.Optische Charakterisierung der volatilen Flamme in Partikelsträhnen in Abhängigkeit von der Partikelanzahldichte, 30. Deutscher Flammentag, 2021.

  • Li, T., Geschwindner, C., Dreizler, A. and Böhm, B.An experimental study of coal particle group combustion in conventional and oxy-fuel atmospheres using multi-parameter optical diagnostics, Proceedings of the Combustion Institute, 2022.

  • Li, T., Li, Bo, Farmand, P., Dreizler, A., Pitsch, H. and Böhm, B.Motion and swelling of single coal particles during volatile combustion in a laminar flow reactor, Proceedings of the Combustion Institute, 2022.

  • Geschwindner, C., Westrup, K., Li, T., Dreizler, A. and Böhm, B.Experimentelle Untersuchung der Interaktion von Biomasse mit einem turbulenten plasmabeheizten Oxidatorgasstrom, 30. Deutscher Flammentag, Hannover, Germany, 2021.

Projects

RWTH Aachen University Lehrstuhl für Wärme- und Stoffübertragung

RWTH Aachen University Lehrstuhl für Wärme- und Stoffübertragung

Contact

massmeyer@wsa.rwth-aachen.de

Publications

  • Zabrodiec, D., Maßmeyer, A., Hees, J., Gronarz, T., Gövert, B., Höfler, M., Ohliger, A., Habermehl, M., Hatzfeld, O. and Kneer, R.Experimental Characterization of the effect of Dry Recirculation on a Swirled Self-Stabilized Oxycoal Flame, 31st Annual International Pittsburgh Coal Conference, Pittsburgh, Pennsylvania, USA, 2014.

  • Hees, J., Zabrodiec, D., Maßmeyer, A., Hatzfeld, O. and Kneer, R.Experimental Investigation and Comparison of Pulverized Coal Combustion in CO2/O2- and N2/O2-Atmospheres, SPEIC: Towards Sustainable Combustion, Lisbon, Portugal, 2014.

  • Hees, J., Zabrodiec, D., Maßmeyer, A., Habermehl, M. and Kneer, R.Experimental Investigation and Comparison of Pulverized Coal Combustion in CO2/O2- and N2/O2-Atmospheres, Flow, Turbulence and Combustion, 96 (2): 417-431, 2015.

  • Haustein, H. D., Kreitzberg, T., Gövert, B., Maßmeyer, A. and Kneer, R.Establishment of kinetic parameters of particle reaction from a well-stirred fluidized bed reactor, Fuel, 158: 263-269, 2015.

  • Hees, J., Zabrodiec, D., Maßmeyer, A., Pielsticker, S., Gövert, B., Habermehl, M., Hatzfeld, O. and Kneer, R.Detailed analyzes of pulverized coal swirl flames in oxy-fuel atmospheres, Combustion and Flame, 172: 289-301, 2016.

  • Zabrodiec, D., Hees, J., Maßmeyer, A., vom Lehn, F., Habermehl, M., Hatzfeld, O. and Kneer, R.Experimental investigation of pulverized coal flames in CO2/O2- and N2/O2-atmospheres: Comparison of solid particle radiative characteristics, Fuel, 201: 136-147, 2017.

  • Zabrodiec, D., Becker, L., Hees, J., Maßmeyer, A., Habermehl, M., Hatzfeld, O., Dreizler, A. and Kneer, R.Detailed Analysis of the Velocity Fields from 60 kW Swirl-Stabilized Coal Flames in CO2/O2- and N2/O2-Atmospheres by Means of Laser Doppler Velocimetry and Particle Image Velocimetry, Combustion Science and Technology, 189 (10): 1751-1775, 2017.

  • Sadiki, A., Agrebi, S., Chrigui, M., Doost, S., Knappstein, R., di Mare, F., Janicka, J., Maßmeyer, A., Zabrodiec, D., Hees, J. and Kneer, R.Analyzing the effects of turbulence and multiphase treatments on oxy-coal combustion process predictions using LES and RANS, Chemical Engineering Science, 166: 283-302, 2017.

  • Bürkle, S., Ebert, V., Rauen, D., Dreizler, A., Möller, G. H., Hees, J., Zabrodiec, D., Maßmeyer, A. and Wagner, S.Laserbasierte Messung von Temperatur und Spezieskonzentrationen bei der Verbrennung von torrefizierter Biomasse in einer 100 kWth-Staubfeuerungsversuchsanlage, 28. Deutscher Flammentag, 2017.

  • Hees, J., Zabrodiec, D., Maßmeyer, A., Hatzfeld, O., Habermehl, M. and Kneer, R.Kohlenstaubverbrennung in Oxyfuel-Atmosphäre: Einfluss der Oxidatorzusammensetzung auf den Verbrennungsprozess, 28. Deutscher Flammentag, 2017.

  • Hees, J., Zabrodiec, D., Maßmeyer, A., Hatzfeld, O. and Kneer, R.Experimental investigation into the influence of the oxygen concentration on a pulverized coal swirl flame in oxy-fuel atmosphere, Fuel, 240: 64-74, 2019.

  • Möller, G. H., Maßmeyer, A., Hees, J., Zabrodiec, D., Habermehl, M. and Kneer, R.Chemiluminescence measurements in a pulverized fuel furnace of pure torrefied biomasses in comparison to solid fossil fuels, 42nd International Technical Conference on Clean Energy, Clearwater, Florida, USA, 2017.

  • Zabrodiec, D., Hees, J., Maßmeyer, A., Hatzfeld, O. and Kneer, R.Experimental Investigation and Comparison of radiative characteristics of Pulverized Coal Flames in CO2/O2- and N2/O2-Atmospheres, 1st International Workshop on Oxy-Fuel Combustion, 2016.

  • Zabrodiec, D., Maßmeyer, A., Hees, J., Hatzfeld, O. and Kneer, R.Flow Pattern and Behavior of 40 kWth Pulverized Torrefied Biomass Flames under Atmospheric and Oxy-fuel Conditions, 14th International Conference on Sustainable Development of Energy, Water and Environment Systems, 2019.

  • Maßmeyer, A., Zabrodiec, D., Hees, J., Kreitzberg, T., Hatzfeld, O. and Kneer, R.Flame Pattern Analysis for 60 kWth Flames under Conventional Air-Fired and Oxy-Fuel Conditions for Two Different Types of Coal, 9th International Symposium on Coal Combustion, 2019.

  • Askarizadeh, H., Zabrodiec, D., Maßmeyer, A., Kreitzberg, T. and Kneer, R.Numerical simulation of swirl oxy-coal combustion in a 60 kW Test Facility using the SST k-ω turbulence model, 3rd International Workshop on Oxy-Fuel Combustion, 2020.

  • Maßmeyer, A., Zabrodiec, D., Dreizler, A. and Kneer, R.Stability Analysis of 60 kWth Coal Flames under Air and Oxyfuel Conditions, 3rd International Workshop on Oxy-Fuel Combustion, Montabaur, Germany, 2020.

  • Maßmeyer, A., Zabrodiec, D., Hees, J., Kreitzberg, T., Hatzfeld, O. and Kneer, R.Flame pattern analysis for 60 kWth flames under conventional air-fired and oxy-fuel conditions for two different types of coal, Fuel, 271: 117457, 2020.

  • Nicolai, H., Wen, Xu, Miranda, F., Zabrodiec, D., Maßmeyer, A., di Mare, F., Dreizler, A., Hasse, C., Kneer, R. and Janicka, J.Numerical investigation of swirl-stabilized pulverized coal flames in air and oxy-fuel atmospheres by means of large eddy simulation coupled with tabulated chemistry, Fuel: 119429, 2020.

  • Zabrodiec, D., Maßmeyer, A., Hees, J., Hatzfeld, O. and Kneer, R.Flow pattern and behavior of 40 kWth pulverized torrefied biomass flames under atmospheric and oxy-fuel conditions, Renewable and Sustainable Energy Reviews, 138: 110493, 2021.

  • Zabrodiec, D., Hees, J., Maßmeyer, A. and Kneer, R.Progress and Challenges in Flow Field Studies of 40–60 kWth Pulverized Coal Flames, Joint Meeting the German and Italian Sections of the Combustion Institute, Sorrento, Italy, 2018.

  • Askarizadeh, H., Nicolai, H., Zabrodiec, D., Pielsticker, S., Hasse, C., Kneer, R. and Maßmeyer, A.Numerische Untersuchung zur Relevanz von Teilmodellen für Pyrolyse und Koksabbrand in turbulenten drallbehafteten Flammen unter Oxyfuel-Bedingungen, 30. Deutscher Flammentag, Hannover, Germany, 2021.

  • Habermehl, M., Hees, J., Maßmeyer, A., Zabrodiec, D., Hatzfeld, O. and Kneer, R.Comparison of Flame Stability Under Air and Oxy-Fuel Conditions for an Aerodynamically Stabilized Pulverized Coal Swirl Flame, Journal of Energy Resources Technology, 138 (4): 042209, 2016.

  • Özer, B., Maßmeyer, A., Zabrodiec, D., Hatzfeld, O. and Kneer, R.Experimental Study on the Influence of Methane-Cofiring on Pulverized Coal Flames under Air and Oxy-Fuel Conditions, 30. Deutscher Flammentag, 2021.

  • Nicolai, H., Debiagi, P., Wen, Xu, Dressler, L., Maßmeyer, A., Janicka, J. and Hasse, C.Flamelet LES of swirl-stabilized oxy-fuel flames using directly coupled multi-step solid fuel kinetics, Combustion and Flame, 241: 112062, 2022.

  • Özer, B., Zabrodiec, D., Kneer, R. and Maßmeyer, A.Experimental investigation of 40 kWth methane-assisted and self-sustained pulverized biomass flames, Proceedings of the Combustion Institute, 2022.

  • Wen, Xu, Nicolai, H., Debiagi, P., Zabrodiec, D., Maßmeyer, A., Kneer, R. and Hasse, C.Flamelet LES of a 40 kWth pulverized torrefied biomass furnace in air and oxy-fuel atmospheres, Proceedings of the Combustion Institute, 2022.

Projects

RWTH Aachen University Lehrstuhl für Strömungslehre und Aerodynamisches Institut

Contact

m.meinke@aia.rwth-aachen.de

Publications

  • Brito Gadeschi, G., Schneiders, L., Meinke, M. and Schröder, W.A numerical method for multiphysics simulations based on hierarchical Cartesian grids, Journal of Fluid Science and Technology, 10 (1): JFST0002, 2015.

  • Schneiders, L., Günther, C., Meinke, M. and Schröder, W.An efficient conservative cut-cell method for rigid bodies interacting with viscous compressible flows, Journal of Computational Physics, 311: 62-86, 2016.

  • Schneiders, L., Meinke, M. and Schröder, W.On the accuracy of Lagrangian point-mass models for heavy non-spherical particles in isotropic turbulence, Fuel, 201: 2-14, 2017.

  • Schneiders, L., Grimmen, J. H., Meinke, M. and Schröder, W.An efficient numerical method for fully-resolved particle simulations on high-performance computers, PAMM, 15 (1): 495-496, 2015.

  • Schneiders, L., Günther, C., Grimmen, J. H., Meinke, M. and Schröder, W.Sharp resolution of complex moving geometries using a multi-cut-cell viscous flow solver, AIAA Paper 2015-3427: 507, 2015.

  • Fröhlich, K., Schneiders, L., Meinke, M. and Schröder, W.Assessment of Non-Spherical Point-Particle Models in LES using Direct Particle-Fluid Simulations, AIAA Paper 2018-3714, 2018.

  • Fröhlich, K., Schneiders, L., Meinke, M. and Schröder, W.Validation of Lagrangian Two-Way Coupled Point-Particle Models in Large-Eddy Simulations, Flow, Turbulence and Combustion, 101 (2): 317-341, 2018.

  • Schneiders, L., Meinke, M. and Schröder, W.Direct particle-fluid simulation of Kolmogorov-length-scale size particles in decaying isotropic turbulence, Journal of Fluid Mechanics, 819: 188-227, 2017.

  • Schneiders, L., Fröhlich, K., Meinke, M. and Schröder, W.The decay of isotropic turbulence carrying non-spherical finite-size particles, Journal of Fluid Mechanics, 875: 520-542, 2019.

  • Fröhlich, K., Schneiders, L., Meinke, M. and Schröder, W.Direct particle-fluid simulation of Kolmogorov-length-scale size ellipsoidal particles in isotropic decaying turbulence, 11th International Symposium on Turbulence and Shear Flow Phenomena, Southampton, United Kingdom, 2019.

  • Fröhlich, K., Meinke, M. and Schröder, W.Correlations for inclined prolates based on highly resolved simulations, Journal of Fluid Mechanics, 901: A5, 2020.

  • Fröhlich, K., Schneiders, L., Meinke, M. and Schröder, W.Ambient flow properties of Kolmogorov-length-scale size non-spherical particles in isotropic turbulence, ERCOFTAC Workshop Direct and Large Eddy Simulation XII, 175-181, SPRINGER NATURE, 2020.

  • Fröhlich, K., Schneiders, L., Meinke, M. and Schröder, W.Analysis of the Interphase Coupling using Direct Particle-Fluid Simulations for Finite-Size Particles, 16th European Turbulence Conference, 2017.

  • Fröhlich, K., Schneiders, L., Meinke, M. and Schröder, W.Assessement of Lagrangian two-way coupled point-particle models using direct particle-fluid simulations, 18. STAB-Workshop, 2017.

  • Fröhlich, K., Schneiders, L., Meinke, M. and Schröder, W.Improved Lagrangian Two-Way Coupled Point-Particle Models using Direct Particle-Fluid Simulations, 11th workshop on Direct and Large Eddy Simulation, 2017.

  • Kiwitt, T., Fröhlich, K., Meinke, M. and Schröder, W.Nusselt correlation for ellipsoidal particles, International Journal of Multiphase Flow, 149: 103941, 2022.

  • Fröhlich, K., Farmand, P., Pitsch, H., Meinke, M. and Schröder, W.Particle Reynolds number effects on settling ellipsoids in isotropic turbulence, International Journal of Multiphase Flow, 139, 2021.

Projects

Ruhr-Universität Bochum Technische Chemie

Contact

muhler@techem.ruhr-uni-bochum.de

Publications

  • Düdder, H., Wütscher, A., Stoll, R. and Muhler, M.Synthesis and characterization of lignite-like fuels obtained by hydrothermal carbonization of cellulose, Fuel (171): 54-58, 2016.

  • Düdder, H., Wütscher, A. and Muhler, M.Catalytic influence of minerals on the combustion behavior of a cellulose-derived solid fuel, 48. Jahrestreffen Deutscher Katalytiker, Weimar, Germany, 2015.

  • Wütscher, A., Düdder, H. and Muhler, M.Synthetic Lignite-like Fuel for Oxy-fuel Combustion, 49. Jahrestreffen Deutscher Katalytiker, Weimar, Germany, 2016.

  • Düdder, H., Wütscher, A., Vorobiev, N., Schiemann, M., Scherer, V. and Muhler, M.Oxidation characteristics of a cellulose-derived hydrochar in thermogravimetric and laminar flow burner experiments, Fuel Processing Technology, 148: 85-90, 2016. doi 

  • Heuer, S., Senneca, O., Wütscher, A., Düdder, H., Schiemann, M., Muhler, M. and Scherer, V.Effects of oxy-fuel conditions on the products of pyrolysis in a drop tube reactor, Fuel Processing Technology, 150: 41-49, 2016. doi 

  • Düdder, H., Lotz, K., Wütscher, A. and Muhler, M.The influence of iron oxide on the oxidation kinetics of synthetic char derived from thermogravimetric analysis and fixed-bed experiments under isothermal and temperature-programmed conditions, Fuel, 201: 99-104, 2017.

  • Wütscher, A., Wedler, C., Seibel, C., Hiltrop, D., Fieback, T., Muhler, M. and Span, R.On the alternating physicochemical characteristics of Colombian coal during pyrolysis, Journal of Analytical and Applied Pyrolysis, 123: 12-19, 2017.

  • Senneca, O., Vorobiev, N., Wütscher, A., Cerciello, F., Heuer, S., Wedler, C., Span, R., Schiemann, M., Muhler, M. and Scherer, V.Assessment of combustion rates of coal chars for oxy-combustion applications, 2nd International Workshop on Oxy-fuel Combustion, Bochum, Germany, 2018.

  • Wütscher, A, Apicella, B, Russo, C, Stanzione, F, Ciajolo, A, Heuer, S, Scherer, V, Muhler, M and Senneca, OCharacterization of tar produced from walnut shells pyrolysis, 40th Meeting of the Italian Section of the Combustion Institute, Rome, 2017.

  • Graeser, P., Wütscher, A., Cerciello, F., Muhler, M. and Schiemann, M.Emissivity Comparison between Chars and Demineralized Coal Chars under Oxycombustion Conditions, Chemical Engineering & Technology, 41 (7): 1490-1496, 2018.

  • Senneca, O., Apicella, B., Russo, C., Cerciello, F., Salatino, P., Heuer, S., Wütscher, A., Schiemann, M., Muhler, M. and Scherer, V.Pyrolysis and Thermal Annealing of Coal and Biomass in CO2-Rich Atmospheres, Energy & Fuels, 32 (10): 10701-10708, 2018.

  • Senneca, O., Vorobiev, N., Wütscher, A., Cerciello, F., Heuer, S., Wedler, C., Span, R., Schiemann, M., Muhler, M. and Scherer, V.Assessment of combustion rates of coal chars for oxy-combustion applications, Fuel, 238: 173-185, 2019.

  • Düdder, H., Wütscher, A. and Muhler, M.Kinetic analysis of temperature-programmed and isothermal hydrochar oxidation experiments, European Symposium on Chemical Reaction Engineering, Fürstenfeldbruck, Germany, 2015.

  • Lotz, K., Wütscher, A., Eckhard, T. and Muhler, M.The impact of mineral matter on the evolved pyrolysis gases, 2nd International Workshop on Oxy-fuel Combustion, 2018.

  • Wütscher, A., Düdder, H. and Muhler, M.Detailed Investigations on Particle Related Effects in Oxy-Fuel Coal Combustion: Pyrolysis, Char Burnout and Release of Sulphur and Chlorine Components, 1st International Workshop on Oxy-Fuel Combustion, 2016.

  • Wütscher, A., Eckhard, T., Hiltrop, D., Lotz, K., Schuhmann, W., Andronescu, C. and Muhler, M.Nitrogen-Doped Metal-Free Carbon Materials Derived from Cellulose as Electrocatalysts for the Oxygen Reduction Reaction, ChemElectroChem, 1: 16064, 2018.

  • Lotz, K., Berger, C. M. and Muhler, M.Catalytic effect of iron phases on the oxidation of cellulose-derived synthetic char, Energy Procedia, 158: 694-699, 2019.

  • Lotz, K., Wütscher, A., Düdder, H., Berger, C. M., Russo, C., Mukherjee, K., Schwaab, G., Havenith, M. and Muhler, M.Tuning the Properties of Iron-Doped Porous Graphitic Carbon Synthesized by Hydrothermal Carbonization of Cellulose and Subsequent Pyrolysis, ACS Omega, 4 (2): 4448-4460, 2019.

  • Kreitzberg, T., Eckhard, T., Pielsticker, S., Muhler, M. and Kneer, R.Änderung von Struktur und Reaktivität durch Pyrolyse fester Brennstoffe, 29. Deutscher Flammentag, 2019.

  • Eckhard, T., Lotz, K., Pflieger, C., Vorobiev, N., Valentiner, S., Scherer, V. and Muhler, M.Hydrothermal carbonisierte mikrokristalline Cellulose als aschefreier Modellbrennstoff für Flachflammenbrenner, 29. Deutscher Flammentag, 2019.

  • Eckhard, T., Valentiner, S., Pflieger, C., Lotz, K., Schiemann, M., Scherer, V. and Muhler, M.The Catalytic Influence of Doped Metals on the Pyrolysis Product Distribution and Resulting Chars of Hydrothermally Derived Model Fuels, 3rd International Workshop on Oxy-Fuel Combustion, 2020.

  • Eckhard, T., Wütscher, A. and Muhler, M.Simultaneous analysis of light gases and heavy pyrolyzates evolved from lignite and hard coal by pyrolysis–GC/MS–GC/TCD, Journal of Analytical and Applied Pyrolysis, 149: 104833, 2020.

  • Pflieger, C., Lotz, K., Eckhard, T. and Muhler, M.Reactivity of mineral-free and doped synthetic chars in O2-, CO2-, and H2O-containing atmospheres, 3rd International Workshop on Oxy-Fuel Combustion, 2020.

  • Senneca, O., Cerciello, F., Russo, C., Wütscher, A., Muhler, M. and Apicella, B.Thermal treatment of lignin, cellulose and hemicellulose in nitrogen and carbon dioxide, Fuel, 271: 117656, 2020.

  • Wedler, C., Lotz, K., Arami-Niya, A., Xiao, G., Span, R., Muhler, M., May, E. F. and Richter, M.Influence of Mineral Composition of Chars Derived by Hydrothermal Carbonization on Sorption Behavior of CO2, CH4, and O2, ACS Omega, 2020.

  • Apicella, B., Russo, C., Ciajolo, A., Cortese, L., Cerciello, F., Stanzione, F., Wütscher, A., Muhler, M. and Senneca, O.High temperature pyrolysis of lignite and synthetic carbons, Fuel, 241: 264-272, 2019.

  • Pflieger, C., Lotz, K., Hilse, N., Berger, C. M., Schiemann, M., Debiagi, P., Hasse, C., Scherer, V., Muhler, M. and Debiagi, P.Catalytic Influence of Mineral Compounds on the Reactivity of Cellulose-Derived Char in O2-, CO2-, and H2O-Containing Atmospheres, Fuel, 2020.

  • Eckhard, T., Pflieger, C., Schmidt, S., Böttger, J., Senneca, O., Schiemann, M., Scherer, V., Muhler, M. and Cerciello, F.Catalytic effects for cellulose-based model fuels under low and high heating rate in air and oxy-fuel atmosphere, Fuel, 324: 124437, 2022.

  • Pflieger, C., Eckhard, T., Böttger, J., Cerciello, F. and Muhler, M.Catalytic influence of minerals on cellulose-based model fuels and model chars in oxidation and gasification, 30. Deutscher Flammentag, 2021.

  • Böttger, J., Eckhard, T., Pflieger, C., Senneca, O., Muhler, M. and Cerciello, F.Green coal substitutes for boilers through hydrothermal carbonization of biomass, 13th European Conference on Industrial Furnaces and Boilers, 2022.

  • Böttger, J., Eckhard, T., Pflieger, C., Muhler, M. and Cerciello, F.Hydrothermal carbonization of biomass: influence of cellulose, hemicellulose and lignin, 23rd edition of the International Conference on Analytical and Applied Pyrolysis, 2022.

  • Eckhard, T., Lotz, K., Wütscher, A., Berger, C. M. and Muhler, M.Kinetic investigations on catalytic properties of mineral matter in oxy-fuel combustion, 2nd International Workshop on Oxy-fuel Combustion, 2018.

  • Eckhard, T., Pflieger, C., Russo, C., Böttger, J., Senneca, O., Apicella, B., Schiemann, M., Scherer, V., Muhler, M. and Cerciello, F.Mineral effects on chemical and physical transformations of cellulose-based model fuels in N2 and CO2 atmospheres, 23rd edition of the International Conference on Analytical and Applied Pyrolysis, 2022.

  • Eckhard, T., Pflieger, C., Russo, C., Böttger, J., Senneca, O., Apicella, B., Schiemann, M., Scherer, V., Muhler, M. and Cerciello, F.Mineral effects on chemical and physical transformations of cellulose-based model fuels in N2 and CO2 atmospheres, 13th European Conference on Industrial Furnaces and Boilers, 2022.

  • Frigge, L., Wütscher, A., Lotz, K., Yildiz, C., Ströhle, J., Muhler, M. and Epple, B.Sulfur and Chlorine Gas Species Formation during Temperature-Programmed Air and Oxy-fuel Combustion of Coal, Energies: (submitted), 2020.

  • Pflieger, C., Eckhard, T., Böttger, J., Telaar, P., Schulwitz, J., Schmidt, S., Cerciello, F. and Muhler, M.The catalytic effect of iron on the oxidation of cellulose-derived chars, 55. Jahrestreffen Deutscher Katalytiker, 2022.

  • Lotz, K., Wütscher, A. and Muhler, M.The influence of iron oxide on the oxidation kinetics of synthetic char, 50.~Jahrestreffen Deutscher Katalytiker, 2017.

Projects

Technische Universität Darmstadt Energie- und Kraftwerkstechnik

Contact

nicolai@ekt.tu-darmstadt.de

Publications

  • Knappstein, R., Künne, G., Nicolai, H., di Mare, F., Sadiki, A. and Janicka, J.Description of the char conversion process in coal combustion based on premixed FGM chemistry, Fuel, 236: 124-134, 2019.

  • Debiagi, P., Nicolai, H., Han, W., Janicka, J. and Hasse, C.Towards predictive CFD simulations of coal combustion – using Machine Learning for efficient representation of solid fuel kinetics, 9th International Symposium on Coal Combustion, 2019.

  • Wen, Xu, Nicolai, H., Schneider, H., Cai, L., Janicka, J., Pitsch, H. and Hasse, C.Flamelet LES of a swirl-stabilized multi-stream pulverized coal burner in air and oxy-fuel atmospheres with pollutant formation, Proceedings of the Combustion Institute, 2020.

  • Nicolai, H., Künne, G., Knappstein, R., Schneider, H., Becker, L., Hasse, C., di Mare, F., Dreizler, A. and Janicka, J.Large Eddy Simulation of a laboratory-scale gas-assisted pulverized coal combustion chamber under oxy-fuel atmospheres using tabulated chemistry, Fuel, 272: 117683, 2020.

  • Nicolai, H., Li, T., Geschwindner, C., di Mare, F., Hasse, C., Böhm, B. and Janicka, J.Numerical investigation of pulverized coal particle group combustion using tabulated chemistry, Proceedings of the Combustion Institute, 2020.

  • Nicolai, H., Wen, Xu, Miranda, F., Zabrodiec, D., Maßmeyer, A., di Mare, F., Dreizler, A., Hasse, C., Kneer, R. and Janicka, J.Numerical investigation of swirl-stabilized pulverized coal flames in air and oxy-fuel atmospheres by means of large eddy simulation coupled with tabulated chemistry, Fuel: 119429, 2020.

  • Wen, Xu, Nicolai, H., Stein, O. T., Janicka, J., Kronenburg, A. and Hasse, C.Effects of air and oxy-fuel atmospheres on flamelet modeling of pollutant formation in laminar counterflow solid fuel flames, Fuel, 285: 119079, 2021.

  • Nicolai, H., Doost, S., di Mare, F., Hasse, C. and Janicka, J.Large Eddy Simulation of pulverized coal combustion under oxy atmospheres using tabulated chemistry, 12th European Conference on Industrial Furnaces and Boilers : INFUB 12, 2020.

  • Nicolai, H., Künne, G., Knappstein, R., di Mare, F. and Janicka, J.Entwicklung einer Simulationsmethode zur Beschreibung der Feststoffverbrennung in Oxy-Atmosphären auf Basis tabellierten Chemie, 29. Deutscher Flammentag, Bochum, Germany, 2019.

  • Debiagi, P., Nicolai, H., Han, W., Janicka, J. and Hasse, C.Machine learning for predictive coal combustion CFD simulations—From detailed kinetics to HDMR Reduced-Order models, Fuel, 274: 117720, 2020.

  • Trespi, S., Nicolai, H., Debiagi, P., Janicka, J., Dreizler, A., Hasse, C. and Faravelli, T.Development and application of an efficient chemical reactor network model for oxy-fuel combustion, Energy & Fuels: (accepted), 2020.

  • Askarizadeh, H., Nicolai, H., Zabrodiec, D., Pielsticker, S., Hasse, C., Kneer, R. and Maßmeyer, A.Numerische Untersuchung zur Relevanz von Teilmodellen für Pyrolyse und Koksabbrand in turbulenten drallbehafteten Flammen unter Oxyfuel-Bedingungen, 30. Deutscher Flammentag, Hannover, Germany, 2021.

  • Nicolai, H., Debiagi, P., Wen, Xu, Dressler, L., Maßmeyer, A., Janicka, J. and Hasse, C.Flamelet LES of swirl-stabilized oxy-fuel flames using directly coupled multi-step solid fuel kinetics, Combustion and Flame, 241: 112062, 2022.

  • Berkel, L., Debiagi, P., Stagni, A., Nicolai, H., Hasse, C. and Faravelli, T.Fluidized bed reactor modelling using multiphase reactor networks, 44th Meeting of The Italian Section of The Combustion Institute, 2022.

  • Farmand, P., Nicolai, H., Schumann, C., Attili, A., Berger, L., Li, T., Geschwindner, C., di Mare, F., Hasse, C., Böhm, B., Janicka, J. and Pitsch, H.Numerical investigation and assessment of flamelet-based models for the prediction of pulverized solid fuel homogeneous ignition and combustion, Combustion and Flame, 235: 111693, 2022.

  • Wen, Xu, Nicolai, H., Debiagi, P., Zabrodiec, D., Maßmeyer, A., Kneer, R. and Hasse, C.Flamelet LES of a 40 kWth pulverized torrefied biomass furnace in air and oxy-fuel atmospheres, Proceedings of the Combustion Institute, 2022.

Projects

RWTH Aachen University Lehrstuhl für Wärme- und Stoffübertragung

Contact

oezer@wsa.rwth-aachen.de

Publications

  • Özer, B., Debiagi, P., Hasse, C., Faravelli, T. and Kazanç, F.An experimental and numerical study on the combustion of lignites from different geographic origins, Fuel, 278: 118320, 2020.

  • Özer, B., Maßmeyer, A., Zabrodiec, D., Hatzfeld, O. and Kneer, R.Experimental Study on the Influence of Methane-Cofiring on Pulverized Coal Flames under Air and Oxy-Fuel Conditions, 30. Deutscher Flammentag, 2021.

  • Özer, B., Zabrodiec, D., Kneer, R. and Maßmeyer, A.Experimental investigation of 40 kWth methane-assisted and self-sustained pulverized biomass flames, Proceedings of the Combustion Institute, 2022.

Projects

Ruhr-Universität Bochum Lehrstuhl für Technische Chemie

Contact

christin.pflieger@rub.de

Publications

  • Eckhard, T., Lotz, K., Pflieger, C., Vorobiev, N., Valentiner, S., Scherer, V. and Muhler, M.Hydrothermal carbonisierte mikrokristalline Cellulose als aschefreier Modellbrennstoff für Flachflammenbrenner, 29. Deutscher Flammentag, 2019.

  • Eckhard, T., Valentiner, S., Pflieger, C., Lotz, K., Schiemann, M., Scherer, V. and Muhler, M.The Catalytic Influence of Doped Metals on the Pyrolysis Product Distribution and Resulting Chars of Hydrothermally Derived Model Fuels, 3rd International Workshop on Oxy-Fuel Combustion, 2020.

  • Pflieger, C., Lotz, K., Hilse, N., Berger, C. M., Schiemann, M., Debiagi, P., Hasse, C., Scherer, V., Muhler, M. and Debiagi, P.Catalytic Influence of Mineral Compounds on the Reactivity of Cellulose-Derived Char in O2-, CO2-, and H2O-Containing Atmospheres, Fuel, 2020.

  • Pflieger, C., Lotz, K., Eckhard, T. and Muhler, M.Reactivity of mineral-free and doped synthetic chars in O2-, CO2-, and H2O-containing atmospheres, 3rd International Workshop on Oxy-Fuel Combustion, 2020.

  • Eckhard, T., Pflieger, C., Schmidt, S., Böttger, J., Senneca, O., Schiemann, M., Scherer, V., Muhler, M. and Cerciello, F.Catalytic effects for cellulose-based model fuels under low and high heating rate in air and oxy-fuel atmosphere, Fuel, 324: 124437, 2022.

  • Pflieger, C., Eckhard, T., Böttger, J., Cerciello, F. and Muhler, M.Catalytic influence of minerals on cellulose-based model fuels and model chars in oxidation and gasification, 30. Deutscher Flammentag, 2021.

  • Böttger, J., Eckhard, T., Pflieger, C., Senneca, O., Muhler, M. and Cerciello, F.Green coal substitutes for boilers through hydrothermal carbonization of biomass, 13th European Conference on Industrial Furnaces and Boilers, 2022.

  • Böttger, J., Eckhard, T., Pflieger, C., Muhler, M. and Cerciello, F.Hydrothermal carbonization of biomass: influence of cellulose, hemicellulose and lignin, 23rd edition of the International Conference on Analytical and Applied Pyrolysis, 2022.

  • Eckhard, T., Pflieger, C., Russo, C., Böttger, J., Senneca, O., Apicella, B., Schiemann, M., Scherer, V., Muhler, M. and Cerciello, F.Mineral effects on chemical and physical transformations of cellulose-based model fuels in N2 and CO2 atmospheres, 23rd edition of the International Conference on Analytical and Applied Pyrolysis, 2022.

  • Eckhard, T., Pflieger, C., Russo, C., Böttger, J., Senneca, O., Apicella, B., Schiemann, M., Scherer, V., Muhler, M. and Cerciello, F.Mineral effects on chemical and physical transformations of cellulose-based model fuels in N2 and CO2 atmospheres, 13th European Conference on Industrial Furnaces and Boilers, 2022.

  • Pflieger, C., Eckhard, T., Böttger, J., Telaar, P., Schulwitz, J., Schmidt, S., Cerciello, F. and Muhler, M.The catalytic effect of iron on the oxidation of cellulose-derived chars, 55. Jahrestreffen Deutscher Katalytiker, 2022.

Projects

RWTH Aachen University Lehrstuhl für Wärme- und Stoffübertragung

Contact

pielsticker@wsa.rwth-aachen.de

Publications

  • Gövert, B., Pielsticker, S., Vorobiev, N., Heuer, S., Hatzfeld, O., Kneer, R., Schiemann, M. and Scherer, V.Examination of Pyrolysis and Char Burnout in Oxyfuel Atmosphere Using Plug Flow and Well Stirred Reactor Type Systems, 18th IFRF Members conference, Freising, Germany, 2015.

  • Hees, J., Zabrodiec, D., Maßmeyer, A., Pielsticker, S., Gövert, B., Habermehl, M., Hatzfeld, O. and Kneer, R.Detailed analyzes of pulverized coal swirl flames in oxy-fuel atmospheres, Combustion and Flame, 172: 289-301, 2016.

  • Pielsticker, S., Heuer, S., Senneca, O., Cerciello, F., Salatino, P., Cortese, L., Gövert, B., Hatzfeld, O., Schiemann, M., Scherer, V. and Kneer, R.Comparison of pyrolysis test rigs for oxy-fuel conditions, Fuel Processing Technology, 156: 461-472, 2017. doi 

  • Pielsticker, S., Gövert, B., Kreitzberg, T., Habermehl, M., Hatzfeld, O. and Kneer, R.Simultaneous investigation into the yields of 22 pyrolysis gases from coal and biomass in a small-scale fluidized bed reactor, Fuel, 190: 420-434, 2017.

  • Kreitzberg, T., Gövert, B., Pielsticker, S. and Kneer, R.CO2 and H2O Gasification under Chemically and Diffusion Controlled Conditions, 33rd Annual International Pittsburgh Coal Conference, Cape Town, South Africa, 2016.

  • Becker, L., von Langenthal, T., Pielsticker, S., Böhm, B., Kneer, R. and Dreizler, A.Experimental investigation of particle-laden flows in an oxy-coal combustion chamber for non-reacting conditions, Fuel, 235: 753-762, 2019.

  • Influence of biomass torrefaction parameters on fast pyrolysis products under flame-equivalent conditions, Biomass and Bioenergy, 119: 392-410, 2018.

  • Gövert, B., Pielsticker, S., Hatzfeld, O. and Kneer, R.Bestimmung der Koksabbrand-Kinetik in einem Wirbelschichtreaktor am Beispiel einer kolumbianischen Steinkohle, 28. Deutscher Flammentag, Darmstadt, Germany, 2017.

  • Gövert, B., Pielsticker, S., Kreitzberg, T., Habermehl, M., Hatzfeld, O. and Kneer, R.Measurement of reaction rates for pulverized fuel combustion in air and oxyfuel atmosphere using a novel fluidized bed reactor setup, Fuel, 201: 81-92, 2017.

  • Kreitzberg, T., Bormann, C., Pielsticker, S., Hatzfeld, O. and Kneer, R.Thermal deactivation of biogenic and fossil fuels: Experimental investigation and modeling approaches, Energy Procedia, 158: 2025-2030, 2019. doi 

  • Kreitzberg, T., Pielsticker, S., Hatzfeld, O. and Kneer, R.Reactivity of biochar gasification in atmospheres of steam, carbon dioxide and their mixtures, Joint Meeting the German and Italian Sections of the Combustion Institute, 2018.

  • Krusch, S., Scherer, V., Solimene, R., Ruoppolo, G., Cerciello, F., Pielsticker, S., Kneer, R., Schlögel, K. U. and Senneca, O.Comparison of different diagnostic techniques for the assessment of coal pyrolysis rate, Joint Meeting the German and Italian Sections of the Combustion Institute, 2018.

  • Pielsticker, S., Gövert, B., Kreitzberg, T., Habermehl, M., Hatzfeld, O. and Kneer, R.Theoretical and experimental evaluation of a fast fluidized bed reactor for the investigation of combustion reactions, 10th Mediterranean Combustion Symposium, 2017.

  • Pielsticker, S., Gövert, B., Kreitzberg, T., Habermehl, M., Hatzfeld, O. and Kneer, R.Development of a rapidly responding fluidized bed reactor by theoretical and experimental evaluation of combustion reactions, Fuel, 223: 462-469, 2018.

  • Pielsticker, S., Gövert, B., Möller, G. H., Hatzfeld, O. and Kneer, R.Impact of Torrefaction on Flash Pyrolysis Products of Biomass and Comparison to Fossil Fuels, 11th Asia-Pacific Conference on Combustion, 2017.

  • Pielsticker, S., Schlögel, K. U., Kreitzberg, T., Hatzfeld, O. and Kneer, R.Measurement of beech wood pyrolysis kinetics in a fluidized bed reactor, Joint Meeting the German and Italian Sections of the Combustion Institute, 2018.

  • Pielsticker, S., Senneca, O., Kreitzberg, T., Cerciello, F., Hatzfeld, O. and Kneer, R.Comparability and validity range of pyrolysis kinetics from Chinese coals obtained with different experimental setups, 9th International Symposium on Coal Combustion, 2019.

  • Pielsticker, S., Schlögel, K. U., Kreitzberg, T., Hatzfeld, O. and Kneer, R.Biomass pyrolysis kinetics in a fluidized bed reactor: Measurements and plausibility verification for reaction conditions, Fuel, 254: 115589, 2019.

  • Pielsticker, S., Ontyd, C., Kreitzberg, T., Hatzfeld, O., Schiemann, M., Scherer, V. and Kneer, R.Adaptation of the Chemical Percolation Devolatilization Model for Low Temperature Pyrolysis in a Fluidized Bed Reactor, Combustion Science and Technology, 52: 1-18, 2019.

  • Pielsticker, S., Kreitzberg, T., Hatzfeld, O. and Kneer, R.Using the Chemical Percolation Devolatilization Model for Analysis of Pyrolysis Kinetics in a Fluidized Bed Reactor, 11th Mediterranean Combustion Symposium, 2019.

  • Kreitzberg, T., Wirch, N., Bormann, C., Pielsticker, S., Hatzfeld, O., Mayer, J. and Kneer, R.Thermally induced changes in microstructure and reactivity of biogenic and fossil fuel particles, Applied Energy, 254: 113607, 2019.

  • Kreitzberg, T., Eckhard, T., Pielsticker, S., Muhler, M. and Kneer, R.Änderung von Struktur und Reaktivität durch Pyrolyse fester Brennstoffe, 29. Deutscher Flammentag, 2019.

  • Debiagi, P., Ontyd, C., Heuer, S., Pielsticker, S., Schiemann, M., Faravelli, T., Kneer, R., Scherer, V. and Hasse, C.Solid Fuel Kinetics for Oxy-Fuel conditions, 29. Deutscher Flammentag, 2019.

  • Schneider, H., Becker, L., Pielsticker, S., Böhm, B., Kneer, R. and Dreizler, A.Experimental investigation and comparison of particle-laden flows in a gas-assisted oxycoal combustion chamber for reacting and non-reacting conditions, 9th European Combustion Meeting, 2019.

  • Becker, L., Pielsticker, S., Böhm, B., Kneer, R. and Dreizler, A.Particle dynamics in a gas assisted coal combustion chamber using advanced laser diagnostics, Fuel, 269: 117188, 2020.

  • Debiagi, P., Ontyd, C., Pielsticker, S., Schiemann, M., Faravelli, T., Kneer, R., Hasse, C. and Scherer, V.Calibration and Validation of a Comprehensive Kinetic Model of Coal Conversion in Inert, Air and Oxy-Fuel Conditions Using Data from Multiple Test Rigs, Fuel: (accepted), 2020.

  • Kreitzberg, T., Pielsticker, S. and Kneer, R.Einfluss von erhöhtem Druck bei Pyrolyse, Abbrand und Vergasung alternativer Brennstoffe, Jahrestreffen der ProcessNet-Fachgruppe Wärme- und Stoffübertragung, 2020.

  • Kreitzberg, T., Pielsticker, S. and Kneer, R.Influence of oxygen and water vapor on the thermochemical conversion of fossil, biogenic and surrogate fuels, 3rd International Workshop on Oxy-Fuel Combustion, 2020.

  • Ontyd, C., Pielsticker, S., Yildiz, C., Schiemann, M., Hatzfeld, O., Ströhle, J., Epple, B., Kneer, R. and Scherer, V.Experimental determination of walnut shell pyrolysis kinetics in N2 and CO2 via thermogravimetric analysis, fluidized bed and drop tube reactors, Fuel: 119313, 2020.

  • Gövert, B., Kreitzberg, T., Pielsticker, S. and Kneer, R.A1 – Experimental investigation of pyrolysis and char burnout kinetics in a Well-Stirred-Reactor under flames and burnout conditions, 2nd International Workshop on Oxy-fuel Combustion, 2018.

  • Askarizadeh, H., Nicolai, H., Zabrodiec, D., Pielsticker, S., Hasse, C., Kneer, R. and Maßmeyer, A.Numerische Untersuchung zur Relevanz von Teilmodellen für Pyrolyse und Koksabbrand in turbulenten drallbehafteten Flammen unter Oxyfuel-Bedingungen, 30. Deutscher Flammentag, Hannover, Germany, 2021.

  • Koch, M., Pielsticker, S. and Kneer, R.Einfluss inhomogener Partikelverteilungen innerhalb dichter Partikelwolken auf die Wärmestrahlung bei der Feststoffverbrennung, 30. Deutscher Flammentag, 2021.

  • Pielsticker, S., Gövert, B., Umeki, K. and Kneer, R.Flash Pyrolysis Kinetics of Extracted Lignocellulosic Biomass Components, Frontiers in Energy Research, 9, 2021.

  • Askarizadeh, H., Lotfollahzadeh, A., Wolfersdorf, C., Pielsticker, S. and Kneer, R.Modeling of a Pilot Plant for Entrained Flow Gasification of Fuel Mixtures Containing Sewage Sludge, 13th European Conference on Industrial Furnaces and Boilers, 2022.

Projects

RWTH Aachen University Institut für Technische Verbrennung

Contact

office@itv.rwth-aachen.de

Publications

  • Farazi, S., Sadr, M., Kang, S., Schiemann, M., Vorobiev, N., Scherer, V. and Pitsch, H.Resolved simulations of single char particle combustion in a laminar flow field, Fuel, 201: 15-28, 2017.

  • Baroncelli, M., Felsmann, D., Kruse, S., Falkenstein, T., Beeckmann, J. and Pitsch, H.Extinction strain rates for coal light volatiles under oxy-fuel conditions, Proceedings of the China National Symposium on Combustion 2016, Ma'anshan, Anhui, China, 2016.

  • Cai, L., Baroncelli, M., Kruse, S., Felsmann, D., Thies, C. and Pitsch, H.Extinction Characteristics of Methane Counterflow Flames under Oxy-Fuel and Air Conditions, Proceedings of the China National Symposium on Combustion 2016, Ma'anshan, Anhui, China, 2016.

  • Xu, K., Zhang, H., Wu, Y., Baroncelli, M. and Pitsch, H.Transient model for soot formation during the combustion of single coal particles, Proceedings of the Combustion Institute, 36 (2): 2131-2138, 2017.

  • Baroncelli, M., Kruse, S. and Pitsch, H.Experimental and numerical investigation of extinction strain rates of coal devolatilization products under oxy-fuel conditions, Proceedings of the European Combustion Meeting, Budapest, Hungary, 2015.

  • Farazi, S., Schiemann, M., Vorobiev, N., Scherer, V., Kang, S. and Pitsch, H.A New Variable Transport Coefficient Single-Film Model for Char Combustion, 8th European Combustion Meeting, Dubrovnik, Croatia, 2017.

  • Sayadi, T., Farazi, S., Kang, S. and Pitsch, H.Transient multiple particle simulations of char particle combustion, Fuel, 199: 289-298, 2017.

  • Farazi, S. and Pitsch, H.Fully Resolved Simulation of Single and Group Particle Combustion in an Oxy-fuel Atmosphere, 1st International Workshop on Oxy-Fuel Combustion, Montabaur, Germany, 2016.

  • Farazi, S., Attili, A., Heuer, S., Schiemann, M., Scherer, V. and Pitsch, H.Modeling and Simulation of Coal Ignition and Combustion under Oxy-Fuel Condition, 2nd International Workshop on Oxy-fuel Combustion, Bochum, Germany, 2018.

  • Felsmann, D., Baroncelli, M., Beeckmann, J. and Pitsch, H.Molecular-beam mass spectrometry study of oxy-combustion in a novel coal-plate experiment, Proceedings of the Combustion Institute, 2018.

  • Farazi, S., Attili, A., Kang, S. and Pitsch, H.Numerical study of coal particle ignition in air and oxy-atmosphere, Proceedings of the Combustion Institute, 2018.

  • Farazi, S., Sayadi, T. and Pitsch, H.Numerical analysis of the drag force acting on the reactive single char particle under oxy-fuel condition, Proceedings of the China National Symposium on Combustion 2016, 2016.

  • Emmert, J., Baroncelli, M., van der Kley, S., Pitsch, H. and Wagner, S.Axisymmetric Linear Hyperspectral Absorption Spectroscopy and Residuum-Based Parameter Selection on a Counter Flow Burner, Energies, 12 (14): 2786, 2019.

  • Chen, B., Kruse, S., Schmid, R., Cai, L., Hansen, N. and Pitsch, H.Oxygenated PAH formation chemistry investigation in anisole jet stirred reactor oxidation by a thermodynamic approach, 3rd International Workshop on Oxy-Fuel Combustion, 2020.

  • Baroncelli, M., Mao, Q., Galle, S., Hansen, N. and Pitsch, H.Role of ring-enlargement reactions in the formation of aromatic hydrocarbons, Physical Chemistry Chemical Physics, 22 (8): 4699-4714, 2020.

  • Cai, L., Kruse, S., Felsmann, D. and Pitsch, H.A Methane Mechanism for Oxy-Fuel Combustion: Extinction Experiments, Model Validation, and Kinetic Analysis, Flow, Turbulence and Combustion, 34: 6970, 2020.

  • Liu, P., Chen, B., Li, Z., Bennett, A., Sioud, S., Pitsch, H., Sarathy, S. M. and Roberts, W. L.Experimental and theoretical evidence for the temperature-determined evolution of PAH functional groups, Proceedings of the Combustion Institute, 2020.

  • Wen, Xu, Nicolai, H., Schneider, H., Cai, L., Janicka, J., Pitsch, H. and Hasse, C.Flamelet LES of a swirl-stabilized multi-stream pulverized coal burner in air and oxy-fuel atmospheres with pollutant formation, Proceedings of the Combustion Institute, 2020.

  • Wen, Xu, Shamooni, A., Stein, O. T., Cai, L., Kronenburg, A., Pitsch, H., Kempf, A. M. and Hasse, C.Detailed analysis of early-stage NOx formation in turbulent pulverized coal combustion with fuel-bound nitrogen, Proceedings of the Combustion Institute, 2020.

  • Baroncelli, M., Felsmann, D., Hansen, N. and Pitsch, H.Investigating the effect of oxy-fuel combustion and light coal volatiles interaction: A mass spectrometric study, Combustion and Flame, 204: 320-330, 2019.

  • Vorobiev, N., Kruse, S., Pitsch, H. and Schiemann, M.Demonstration of laser-induced incandescence in single coal particle enveloping flames, 9th European Combustion Meeting, 2019.

  • Cai, L., Kruse, S., Felsmann, D., Thies, C., Yalamanchi, K. K. and Pitsch, H.Experimental Design for Discrimination of Chemical Kinetic Models for Oxy-Methane Combustion, Energy & Fuels, 31 (5): 5533-5542, 2017.

  • Farmand, P., Schumann, C., Attili, A. and Pitsch, H.Direct numerical simulation of solid fuel ignition and combustion in laminar and turbulent conditions, 3rd International Workshop on Oxy-Fuel Combustion, 2020.

  • Xing, J., Luo, K., Pitsch, H., Wang, H., Bai, Y., Zhao, C. and Fan, J.Predicting kinetic parameters for coal devolatilization by means of Artificial Neural Networks, Proceedings of the Combustion Institute, 37 (3): 2943-2950, 2019.

  • Hassan, A., Sayadi, T., Le Chenadec, V., Pitsch, H. and Attili, A.Adjoint-based sensitivity analysis of steady char burnout, Combustion Theory and Modelling: (accepted), 2020.

  • Attili, A., Farmand, P., Schumann, C., Farazi, S., Böhm, B., Li, T., Geschwindner, C., Köser, J., Dreizler, A. and Pitsch, H.Numerical Simulations and Experiments of Ignition of Solid Particles in a Laminar Burner: Effects of Slip Velocity and Particle Swelling, Flow, Turbulence and Combustion, 2020.

  • Chen, B., Ilies, B. D., Chen, W., Xu, Q., Li, Y., Xing, L., Yang, J., Wei, L., Hansen, N., Pitsch, H., Sarathy, S. M. and Wang, Z.Exploring low temperature oxidation of 1-butene in jet-stirred reactors, Combustion and Flame, 222: 259-271, 2020.

  • Farazi, S., Hinrichs, J., Davidovic, M., Falkenstein, T., Bode, M., Kang, S., Attili, A. and Pitsch, H.Numerical investigation of coal particle stream ignition in oxy-atmosphere, Fuel, 241: 477-487, 2019.

  • Chen, B., Kruse, S., Schmid, R., Cai, L., Hansen, N. and Pitsch, H.Oxygenated PAH Formation Chemistry Investigation in Anisole Jet Stirred Reactor Oxidation by a Thermodynamic Approach, Energy & Fuels, 35 (2), 2021.

  • Chen, B., Hellmuth, M., Faller, S., May, L., Liu, P., Cai, L., Roberts, W. L. and Pitsch, H.Exploring the combustion chemistry of anisole in laminar counterflow diffusion-flames under oxy-fuel conditions, Combustion and Flame: 111929, 2021.

  • Li, T., Farmand, P., Geschwindner, C., Greifenstein, M., Köser, J., Schumann, C., Attili, A., Pitsch, H., Dreizler, A. and Böhm, B.Homogeneous ignition and volatile combustion of single solid fuel particles in air and oxy-fuel conditions, Fuel, 291, 2021.

  • Farmand, P., Nicolai, H., Schumann, C., Attili, A., Berger, L., Li, T., Geschwindner, C., di Mare, F., Hasse, C., Böhm, B., Janicka, J. and Pitsch, H.Numerical investigation and assessment of flamelet-based models for the prediction of pulverized solid fuel homogeneous ignition and combustion, Combustion and Flame, 235: 111693, 2022.

  • Fröhlich, K., Farmand, P., Pitsch, H., Meinke, M. and Schröder, W.Particle Reynolds number effects on settling ellipsoids in isotropic turbulence, International Journal of Multiphase Flow, 139, 2021.

  • Li, T., Li, Bo, Farmand, P., Dreizler, A., Pitsch, H. and Böhm, B.Motion and swelling of single coal particles during volatile combustion in a laminar flow reactor, Proceedings of the Combustion Institute, 2022.

Projects

Ruhr-Universität Bochum Lehrstuhl für Energieanlagen und Energieprozesstechnik

Contact

poertner@leat.rub.de

Publications

  • Koch, M., Pörtner, L., Gu, Y., Schiemann, M., Rohlfs, W. and Kneer, R.Comparison of scattering phase functions of reacting and non-reacting pulverised fuel particles, Fuel: 119415, 2020.

  • Graeser, P., Pörtner, L. and Schiemann, M.Influence of the Mineral Content on the Emissivity of Hydrothermal Char, Chemical Engineering & Technology, 43 (5): 1016-1020, 2020.

  • Pörtner, L., Gu, Y. and Schiemann, M.Investigation of Pulverized Biomass and Coal Char Emissivity, Energies, 13 (18): 4620, 2020.

  • Schiemann, M., Graeser, P. and Pörtner, L.Char emissivity measurements for coal chars, 9th European Combustion Meeting, 2019.

  • Pörtner, L. and Schiemann, M.Optimization of a setup to investigate the morphology and emissivity of coal and biomass particles during burnout, 46th International Technical Conference on Clean Energy, 2022.

Projects

Technische Universität Darmstadt Fachgebiet Energiesysteme und Energietechnik

Contact

marcel.richter@est.tu-darmstadt.de

Publications

  • Debiagi, P., Yildiz, C., Richter, M., Ströhle, J., Epple, B., Faravelli, T. and Hasse, C.Experimental and modeling assessment of sulfur release from coal under low and high heating rates, Proceedings of the Combustion Institute, 2020.

  • von Bohnstein, M., Richter, M., Graeser, P., Schiemann, M., Ströhle, J. and Epple, B.3D CFD simulation of a 250 MWel oxy-fuel boiler with evaluation of heat radiation calculation, Renewable and Sustainable Energy Reviews, 137, 2021.

Projects

RWTH Aachen University Institut für Technische Verbrennung

Contact

T.sayadi@itv.rwth?acchen.de

Publications

  • Sayadi, T., Farazi, S., Kang, S. and Pitsch, H.Transient multiple particle simulations of char particle combustion, Fuel, 199: 289-298, 2017.

  • Farazi, S., Sayadi, T. and Pitsch, H.Numerical analysis of the drag force acting on the reactive single char particle under oxy-fuel condition, Proceedings of the China National Symposium on Combustion 2016, 2016.

  • Fikl, A., Le Chenadec, V. and Sayadi, T.Control and Optimization of Interfacial Flows Using Adjoint-Based Techniques, Fluids, 5 (3): 156, 2020.

  • Hassan, A., Sayadi, T., Le Chenadec, V. and Attili, A.Sensitivity analysis of an unsteady char particle combustion, Fuel: (accepted), 2020.

  • Hassan, A., Sayadi, T., Le Chenadec, V., Pitsch, H. and Attili, A.Adjoint-based sensitivity analysis of steady char burnout, Combustion Theory and Modelling: (accepted), 2020.

  • Hassan, A., Sayadi, T., Schiemann, M. and Scherer, V.Adjoint-based sensitivity analysis of char combustion surface reaction kinetics, Fuel, 287, 2021.

Projects

Ruhr-Universität Bochum Lehrstuhl für Energieanlagen und Energieprozesstechnik

Contact

scherer@leat.ruhr-uni-bochum.de

Publications

  • Schiemann, M., Geier, M., Shaddix, C. R., Vorobiev, N. and Scherer, V.Determination of char combustion kinetics parameters: comparison of point detector and imaging-based particle-sizing pyrometry, The Review of Scientific Instruments, 85 (7): 075114, 2014.

  • Schiemann, M., Vorobiev, N. and Scherer, V.Stereoscopic pyrometer for char combustion characterization, Applied Optics, 54 (5): 1097, 2015. doi 

  • Greffrath, F., Gorewoda, J., Schiemann, M. and Scherer, V.Influence of chemical composition and physical structure on normal radiant emittance characteristics of ash deposits, Fuel, 134: 307-314, 2014.

  • Gövert, B., Pielsticker, S., Vorobiev, N., Heuer, S., Hatzfeld, O., Kneer, R., Schiemann, M. and Scherer, V.Examination of Pyrolysis and Char Burnout in Oxyfuel Atmosphere Using Plug Flow and Well Stirred Reactor Type Systems, 18th IFRF Members conference, Freising, Germany, 2015.

  • Heuer, S., Schiemann, M. and Scherer, V.Determination of devolatilization kinetics in inert and CO2-enriched atmospheres in a plug flow reactor, 32nd Annual International Pittsburgh Coal Conference, Pittsburgh, Pennsylvania, USA, 2015.

  • Becker, A., Schiemann, M., Heuer, S., Vorobiev, N., Scherer, V., Haxter, D. and Mayer, J.A Standardized Method for the Characterization of Coal Ignition Under Oxyfuel Conditions, 32nd Annual International Pittsburgh Coal Conference, Pittsburgh, Pennsylvania, USA, 2015.

  • Vorobiev, N., Schiemann, M., Wirtz, S. and Scherer, V.Pyrometrische Bestimmung von Koksabbrandkinetiken unter Oxyfuel-Bedingungen, 27. Deutscher Flammentag, Clausthal-Zellerfeld, Germany, 2015.

  • Gorewoda, J., Schiemann, M., Scherer, V. and Neuroth, M.An Examination on the Influence of the Oxidation State of Iron on the Spectral Radiative Emittance of Synthetic Ash Layers, 40th International Technical Conference on Clean Coal & Fuel Systems, Clearwater, Florida, USA, 2015.

  • Köser, J., Becker, L., Vorobiev, N., Schiemann, M., Scherer, V., Böhm, B. and Dreizler, A.Characterization of single coal particle combustion within oxygen-enriched environments using high-speed OH-PLIF, Applied Physics B, 121 (4): 459-464, 2015.

  • Düdder, H., Wütscher, A., Vorobiev, N., Schiemann, M., Scherer, V. and Muhler, M.Oxidation characteristics of a cellulose-derived hydrochar in thermogravimetric and laminar flow burner experiments, Fuel Processing Technology, 148: 85-90, 2016. doi 

  • Vorobiev, N., Geier, M., Schiemann, M. and Scherer, V.Experimentation for char combustion kinetics measurements: Bias from char preparation, Fuel Processing Technology, 151: 155-165, 2016. doi 

  • Seibel, C., Wedler, C., Vorobiev, N., Schiemann, M., Scherer, V., Span, R. and Fieback, T.Sorption measurements for determining surface effects and structure of solid fuels, Fuel Processing Technology, 153: 81-86, 2016.

  • Pielsticker, S., Heuer, S., Senneca, O., Cerciello, F., Salatino, P., Cortese, L., Gövert, B., Hatzfeld, O., Schiemann, M., Scherer, V. and Kneer, R.Comparison of pyrolysis test rigs for oxy-fuel conditions, Fuel Processing Technology, 156: 461-472, 2017. doi 

  • Apicella, B., Senneca, O., Russo, C., Heuer, S., Cortese, L., Cerciello, F., Scherer, V., Schiemann, M. and Ciajolo, A.Separation and characterization of carbonaceous particulate (soot and char) produced from fast pyrolysis of coal in inert and CO2 atmospheres, Fuel, 201: 118-123, 2017. doi 

  • Farazi, S., Sadr, M., Kang, S., Schiemann, M., Vorobiev, N., Scherer, V. and Pitsch, H.Resolved simulations of single char particle combustion in a laminar flow field, Fuel, 201: 15-28, 2017.

  • Knappstein, R., Kuenne, G., Ketelheun, A., Köser, J., Becker, L., Heuer, S., Schiemann, M., Scherer, V., Dreizler, A., Sadiki, A. and Janicka, J.Devolatilization and volatiles reaction of individual coal particles in the context of FGM tabulated chemistry, Combustion and Flame, 169: 72-84, 2016. doi 

  • Heuer, S., Senneca, O., Wütscher, A., Düdder, H., Schiemann, M., Muhler, M. and Scherer, V.Effects of oxy-fuel conditions on the products of pyrolysis in a drop tube reactor, Fuel Processing Technology, 150: 41-49, 2016. doi 

  • Senneca, O., Apicella, B., Heuer, S., Schiemann, M., Scherer, V., Stanzione, F., Ciajolo, A. and Russo, C.Effects of CO2 on submicronic carbon particulate (soot) formed during coal pyrolysis in a drop tube reactor, Combustion and Flame, 172: 302-308, 2016. doi 

  • Gronarz, T., Schulze, J., Laemmerhold, M., Graeser, P., Gorewoda, J., Kez, V., Habermehl, M., Schiemann, M., Ströhle, J., Epple, B., Scherer, V. and Kneer, R.Quantification of the influence of parameters determining radiative heat transfer in an oxy-fuel operated boiler, Fuel Processing Technology, 157: 76-89, 2017.

  • Gorewoda, J. and Scherer, V.Influence of Carbonate Decomposition on Normal Spectral Radiative Emittance in the Context of Oxyfuel Combustion, Energy & Fuels, 30 (11): 9752-9760, 2016.

  • Gorewoda, J. and Scherer, V.Comparison of normal spectral emittance of sulfates and carbonates – significant mineral classes of ashes under oxy-fuel conditions, Combura Symposium, Soesterberg, Netherlands, 2016.

  • Gorewoda, J. and Scherer, V.Normal Radiative Emittance of Coal Ash Sulfates in the Context of Oxyfuel Combustion, Energy & Fuels, 31 (4): 4400-4406, 2017.

  • Gorewoda, J. and Scherer, V.Key parameters for the radiative emittance of ashes of solid fuels, Energy Procedia, 120: 181-188, 2017.

  • Draper, T., Gorewoda, J., Kolczynski, L., Fry, A., Scherer, V., Ring, T. and Eddings, E.The Influence of Temperature on the Spectral Emittance of Ash Deposits taken from a 1.5 MW, Pulverized Coal Test Facility, 42nd International Technical Conference on Clean Energy, Clearwater, Florida, USA, 2017.

  • Cerciello, F., Cortese, L., Heuer, S., Scherer, V., Schiemann, M. and Senneca, O.Effect of CO2 on chars produced from coal and biomass at high heating rates, 39th Meeting of the Italian Section of the Combustion Institute, Naples, Italy, 2016.

  • Cerciello, F., Cortese, L., Heuer, S., Scherer, V., Schiemann, M. and Senneca, O.Effect of CO2 on coal pyrolysis at high and low heating rates on char reactivity, 39th Meeting of the Italian Section of the Combustion Institute, Naples, Italy, 2016.

  • Farazi, S., Schiemann, M., Vorobiev, N., Scherer, V., Kang, S. and Pitsch, H.A New Variable Transport Coefficient Single-Film Model for Char Combustion, 8th European Combustion Meeting, Dubrovnik, Croatia, 2017.

  • Becker, A., Schiemann, M., Scherer, V., Shaddix, C. R., Haxter, D. and Mayer, J.Comparative ignition tests of coal under oxy-fuel conditions in a standardized laboratory test rig, Fuel, 208: 127-136, 2017.

  • Senneca, O., Vorobiev, N., Wütscher, A., Cerciello, F., Heuer, S., Wedler, C., Span, R., Schiemann, M., Muhler, M. and Scherer, V.Assessment of combustion rates of coal chars for oxy-combustion applications, 2nd International Workshop on Oxy-fuel Combustion, Bochum, Germany, 2018.

  • Weber, K., Wang, L., Heuer, S., Scherer, V., Li, T., Skreiberg, O. and Lovaas, T.CO2 gasification of biomass chars derived from fast pyrolysis of birch bark and forest residues, 2nd International Workshop on Oxy-fuel Combustion, 2018.

  • Farazi, S., Attili, A., Heuer, S., Schiemann, M., Scherer, V. and Pitsch, H.Modeling and Simulation of Coal Ignition and Combustion under Oxy-Fuel Condition, 2nd International Workshop on Oxy-fuel Combustion, Bochum, Germany, 2018.

  • Schiemann, M., Vorobiev, N., Scherer, V., Wedler, C., Richter, M. and Span, R.Effektive Diffusionskoeffizienten in Kokspartikeln aus Oxyfuel-Feuerungen, 28. Deutscher Flammentag, 395-406, Darmstadt, Germany, 2017.

  • Senneca, O., Cerciello, F., Cortese, L., Heuer, S., Schiemann, M. and Scherer, V.Effects of oxy-fuel conditions on walnut shells pyrolysis in a drop tube reactor, 10th Mediterranean Combustion Symposium, Naples, Italy, 2017.

  • Senneca, O, Cerciello, F, Cortese, L, Heuer, S, Schiemann, M and Scherer, VEffects of CO2 enriched atmosphere on chars from walnut shells pyrolysis in a drop tube reactor, Fuel, 229: 235-240, 2018. doi 

  • Becker, A., Schiemann, M., Scherer, V., Haxter, D. and Mayer, J.Pulverized coal ignition testing under air-fired conditions using the Zelkowski method: comparison of coals of different rank and provenience, Energy Procedia, 120: 173-180, 2017. doi 

  • Wütscher, A, Apicella, B, Russo, C, Stanzione, F, Ciajolo, A, Heuer, S, Scherer, V, Muhler, M and Senneca, OCharacterization of tar produced from walnut shells pyrolysis, 40th Meeting of the Italian Section of the Combustion Institute, Rome, 2017.

  • Vorobiev, N., Schiemann, M. and Scherer, V.Optical investigation of char combustion kinetics under oxy-fuel conditions, IFRF 2018 Conference, Sheffield, United Kingdom, 2018.

  • Krusch, S., Scherer, V., Solimene, R., Ruoppolo, G., Cerciello, F., Pielsticker, S., Kneer, R., Schlögel, K. U. and Senneca, O.Comparison of different diagnostic techniques for the assessment of coal pyrolysis rate, Joint Meeting the German and Italian Sections of the Combustion Institute, 2018.

  • Senneca, O., Apicella, B., Russo, C., Cerciello, F., Salatino, P., Heuer, S., Wütscher, A., Schiemann, M., Muhler, M. and Scherer, V.Pyrolysis and Thermal Annealing of Coal and Biomass in CO2-Rich Atmospheres, Energy & Fuels, 32 (10): 10701-10708, 2018.

  • Senneca, O., Heuer, S., Bareschino, P., Urciuolo, M., Pepe, F., Schiemann, M., Chirone, R. and Scherer, V.Fragmentation of pulverized coal in a laminar drop tube reactor: Experiments and model, Proceedings of the Combustion Institute, 2018.

  • Senneca, O., Vorobiev, N., Wütscher, A., Cerciello, F., Heuer, S., Wedler, C., Span, R., Schiemann, M., Muhler, M. and Scherer, V.Assessment of combustion rates of coal chars for oxy-combustion applications, Fuel, 238: 173-185, 2019.

  • Weber, K., Heuer, S., Quicker, P., Li, T., Løvås, T. and Scherer, V.An Alternative Approach for the Estimation of Biochar Yields, Energy & Fuels, 32 (9): 9506-9512, 2018.

  • Schiemann, M., Gronarz, T., Graeser, P., Gorewoda, J., Kneer, R. and Scherer, V.A correlation between char emissivity and temperature, Fuel, 256: 115889, 2019.

  • Heuer, S., Wedler, C., Ontyd, C., Schiemann, M., Span, R., Richter, M. and Scherer, V.Evolution of coal char porosity from CO2-pyrolysis experiments, Fuel, 253: 1457-1464, 2019.

  • Pielsticker, S., Ontyd, C., Kreitzberg, T., Hatzfeld, O., Schiemann, M., Scherer, V. and Kneer, R.Adaptation of the Chemical Percolation Devolatilization Model for Low Temperature Pyrolysis in a Fluidized Bed Reactor, Combustion Science and Technology, 52: 1-18, 2019.

  • Debiagi, P., Ontyd, C., Heuer, S., Pielsticker, S., Schiemann, M., Faravelli, T., Kneer, R., Scherer, V. and Hasse, C.Solid Fuel Kinetics for Oxy-Fuel conditions, 29. Deutscher Flammentag, 2019.

  • Eckhard, T., Lotz, K., Pflieger, C., Vorobiev, N., Valentiner, S., Scherer, V. and Muhler, M.Hydrothermal carbonisierte mikrokristalline Cellulose als aschefreier Modellbrennstoff für Flachflammenbrenner, 29. Deutscher Flammentag, 2019.

  • Debiagi, P., Heuer, S., Ontyd, C., Schiemann, M., Faravelli, T., Hasse, C. and Scherer, V.Differences in Formation and Oxidation Of Colombian Coal Chars in Air and Oxy-Fuel Atmospheres, Chemical Engineering Transactions, 74: 151-156, 2019.

  • Bareschino, P., Urciuolo, M., Scherer, V., Chirone, R. and Senneca, O.Effect of O2/CO2 atmospheres on coal fragmentation, Fuel, 267: 117145, 2020.

  • Eckhard, T., Valentiner, S., Pflieger, C., Lotz, K., Schiemann, M., Scherer, V. and Muhler, M.The Catalytic Influence of Doped Metals on the Pyrolysis Product Distribution and Resulting Chars of Hydrothermally Derived Model Fuels, 3rd International Workshop on Oxy-Fuel Combustion, 2020.

  • Ontyd, C., Senneca, O., Schiemann, M. and Scherer, V.A2 – Influence of water vapour on tar and gas formation during biomass pyrolysis under N2 and CO2 atmosphere in a drop tube reactor, 3rd International Workshop on Oxy-Fuel Combustion, 2020.

  • Senneca, O., Ontyd, C., Cerciello, F., Schiemann, M. and Scherer, V.Extension of the Thermal Annealing Concepts developed for coal combustion to conversion of lignocellulosic biomass, Energy & Fuels, 34 (3): 3661-3670, 2020.

  • Vorobiev, N., Valentiner, S., Schiemann, M. and Scherer, V.Comprehensive Data Set of Single Particle Combustion under Oxy-fuel Conditions, Part I: Measurement Technique, Combustion Science and Technology, 56 (2): 1-22, 2020.

  • Vorobiev, N., Valentiner, S., Schiemann, M. and Scherer, V.Comprehensive Data Set of Single Particle Combustion under Oxy-fuel Conditions, Part II: Data Set, Combustion Science and Technology, 5 (1): 1-16, 2020.

  • Wedler, C., Ontyd, C., Schiemann, M., Scherer, V., Richter, M. and Span, R.Evolution of micro- and mesopore structure during pyrolysis of coal and biomass in different atmospheres, 3rd International Workshop on Oxy-Fuel Combustion, 2020.

  • Schneider, H., Valentiner, S., Vorobiev, N., Böhm, B., Schiemann, M., Scherer, V., Kneer, R. and Dreizler, A.Investigation on flow dynamics and temperatures of solid fuel particles in a gas-assisted oxy-fuel combustion chamber, Fuel, 286: 119424, 2021.

  • Debiagi, P., Ontyd, C., Pielsticker, S., Schiemann, M., Faravelli, T., Kneer, R., Hasse, C. and Scherer, V.Calibration and Validation of a Comprehensive Kinetic Model of Coal Conversion in Inert, Air and Oxy-Fuel Conditions Using Data from Multiple Test Rigs, Fuel: (accepted), 2020.

  • Ontyd, C., Pielsticker, S., Yildiz, C., Schiemann, M., Hatzfeld, O., Ströhle, J., Epple, B., Kneer, R. and Scherer, V.Experimental determination of walnut shell pyrolysis kinetics in N2 and CO2 via thermogravimetric analysis, fluidized bed and drop tube reactors, Fuel: 119313, 2020.

  • Pflieger, C., Lotz, K., Hilse, N., Berger, C. M., Schiemann, M., Debiagi, P., Hasse, C., Scherer, V., Muhler, M. and Debiagi, P.Catalytic Influence of Mineral Compounds on the Reactivity of Cellulose-Derived Char in O2-, CO2-, and H2O-Containing Atmospheres, Fuel, 2020.

  • Schiemann, M., Graeser, P., Heuer, S., Vorobiev, N. and Scherer, V.Combustion investigations with Colombian coal: Summary of experiments and numerical interpretation, 42nd International Technical Conference on Clean Energy, Clearwater, Florida, USA, 2017.

  • Hassan, A., Sayadi, T., Schiemann, M. and Scherer, V.Adjoint-based sensitivity analysis of char combustion surface reaction kinetics, Fuel, 287, 2021.

  • Eckhard, T., Pflieger, C., Schmidt, S., Böttger, J., Senneca, O., Schiemann, M., Scherer, V., Muhler, M. and Cerciello, F.Catalytic effects for cellulose-based model fuels under low and high heating rate in air and oxy-fuel atmosphere, Fuel, 324: 124437, 2022.

  • Tarlinski, D., Freisewinkel, E., Eisenbach, T., Span, R., Schiemann, M. and Scherer, V.Char burnout of walnut shells using optical measurement techniques and first comparison of the experimental data to the CCK model, 46th International Technical Conference on Clean Energy, 2022.

  • Ontyd, C., Freisewinkel, E., Wedler, C., Eisenbach, T., Span, R., Senneca, O. and Scherer, V.Flash pyrolysis of walnut shells and poplar in N2 and CO2: pyrolysis kinetics, pore evolution and a model for evaluation of pyrolysis species, 13th European Conference on Industrial Furnaces and Boilers, 2022.

  • Eckhard, T., Pflieger, C., Russo, C., Böttger, J., Senneca, O., Apicella, B., Schiemann, M., Scherer, V., Muhler, M. and Cerciello, F.Mineral effects on chemical and physical transformations of cellulose-based model fuels in N2 and CO2 atmospheres, 23rd edition of the International Conference on Analytical and Applied Pyrolysis, 2022.

  • Eckhard, T., Pflieger, C., Russo, C., Böttger, J., Senneca, O., Apicella, B., Schiemann, M., Scherer, V., Muhler, M. and Cerciello, F.Mineral effects on chemical and physical transformations of cellulose-based model fuels in N2 and CO2 atmospheres, 13th European Conference on Industrial Furnaces and Boilers, 2022.

Projects

Ruhr-Universität Bochum Lehrstuhl für Energieanlagen und Energieprozesstechnik

Contact

schiemann@leat.rub.de

Publications

  • Schiemann, M., Geier, M., Shaddix, C. R., Vorobiev, N. and Scherer, V.Determination of char combustion kinetics parameters: comparison of point detector and imaging-based particle-sizing pyrometry, The Review of Scientific Instruments, 85 (7): 075114, 2014.

  • Schiemann, M., Vorobiev, N. and Scherer, V.Stereoscopic pyrometer for char combustion characterization, Applied Optics, 54 (5): 1097, 2015. doi 

  • Greffrath, F., Gorewoda, J., Schiemann, M. and Scherer, V.Influence of chemical composition and physical structure on normal radiant emittance characteristics of ash deposits, Fuel, 134: 307-314, 2014.

  • Gövert, B., Pielsticker, S., Vorobiev, N., Heuer, S., Hatzfeld, O., Kneer, R., Schiemann, M. and Scherer, V.Examination of Pyrolysis and Char Burnout in Oxyfuel Atmosphere Using Plug Flow and Well Stirred Reactor Type Systems, 18th IFRF Members conference, Freising, Germany, 2015.

  • Heuer, S., Schiemann, M. and Scherer, V.Determination of devolatilization kinetics in inert and CO2-enriched atmospheres in a plug flow reactor, 32nd Annual International Pittsburgh Coal Conference, Pittsburgh, Pennsylvania, USA, 2015.

  • Becker, A., Schiemann, M., Heuer, S., Vorobiev, N., Scherer, V., Haxter, D. and Mayer, J.A Standardized Method for the Characterization of Coal Ignition Under Oxyfuel Conditions, 32nd Annual International Pittsburgh Coal Conference, Pittsburgh, Pennsylvania, USA, 2015.

  • Vorobiev, N., Schiemann, M., Wirtz, S. and Scherer, V.Pyrometrische Bestimmung von Koksabbrandkinetiken unter Oxyfuel-Bedingungen, 27. Deutscher Flammentag, Clausthal-Zellerfeld, Germany, 2015.

  • Graeser, P. and Schiemann, M.An attempt to measure the emissivity of burning coal particles in Oxy-fuel atmospheres: Test rig calibration and first results, 40th International Technical Conference on Clean Coal & Fuel Systems, Clearwater, Florida, USA, 2015.

  • Gorewoda, J., Schiemann, M., Scherer, V. and Neuroth, M.An Examination on the Influence of the Oxidation State of Iron on the Spectral Radiative Emittance of Synthetic Ash Layers, 40th International Technical Conference on Clean Coal & Fuel Systems, Clearwater, Florida, USA, 2015.

  • Köser, J., Becker, L., Vorobiev, N., Schiemann, M., Scherer, V., Böhm, B. and Dreizler, A.Characterization of single coal particle combustion within oxygen-enriched environments using high-speed OH-PLIF, Applied Physics B, 121 (4): 459-464, 2015.

  • Düdder, H., Wütscher, A., Vorobiev, N., Schiemann, M., Scherer, V. and Muhler, M.Oxidation characteristics of a cellulose-derived hydrochar in thermogravimetric and laminar flow burner experiments, Fuel Processing Technology, 148: 85-90, 2016. doi 

  • Graeser, P. and Schiemann, M.Char particle emissivity of two coal chars in oxy-fuel atmospheres, Fuel, 183: 405-413, 2016.

  • Vorobiev, N., Geier, M., Schiemann, M. and Scherer, V.Experimentation for char combustion kinetics measurements: Bias from char preparation, Fuel Processing Technology, 151: 155-165, 2016. doi 

  • Seibel, C., Wedler, C., Vorobiev, N., Schiemann, M., Scherer, V., Span, R. and Fieback, T.Sorption measurements for determining surface effects and structure of solid fuels, Fuel Processing Technology, 153: 81-86, 2016.

  • Pielsticker, S., Heuer, S., Senneca, O., Cerciello, F., Salatino, P., Cortese, L., Gövert, B., Hatzfeld, O., Schiemann, M., Scherer, V. and Kneer, R.Comparison of pyrolysis test rigs for oxy-fuel conditions, Fuel Processing Technology, 156: 461-472, 2017. doi 

  • Apicella, B., Senneca, O., Russo, C., Heuer, S., Cortese, L., Cerciello, F., Scherer, V., Schiemann, M. and Ciajolo, A.Separation and characterization of carbonaceous particulate (soot and char) produced from fast pyrolysis of coal in inert and CO2 atmospheres, Fuel, 201: 118-123, 2017. doi 

  • Farazi, S., Sadr, M., Kang, S., Schiemann, M., Vorobiev, N., Scherer, V. and Pitsch, H.Resolved simulations of single char particle combustion in a laminar flow field, Fuel, 201: 15-28, 2017.

  • Knappstein, R., Kuenne, G., Ketelheun, A., Köser, J., Becker, L., Heuer, S., Schiemann, M., Scherer, V., Dreizler, A., Sadiki, A. and Janicka, J.Devolatilization and volatiles reaction of individual coal particles in the context of FGM tabulated chemistry, Combustion and Flame, 169: 72-84, 2016. doi 

  • Heuer, S., Senneca, O., Wütscher, A., Düdder, H., Schiemann, M., Muhler, M. and Scherer, V.Effects of oxy-fuel conditions on the products of pyrolysis in a drop tube reactor, Fuel Processing Technology, 150: 41-49, 2016. doi 

  • Senneca, O., Apicella, B., Heuer, S., Schiemann, M., Scherer, V., Stanzione, F., Ciajolo, A. and Russo, C.Effects of CO2 on submicronic carbon particulate (soot) formed during coal pyrolysis in a drop tube reactor, Combustion and Flame, 172: 302-308, 2016. doi 

  • Gronarz, T., Schulze, J., Laemmerhold, M., Graeser, P., Gorewoda, J., Kez, V., Habermehl, M., Schiemann, M., Ströhle, J., Epple, B., Scherer, V. and Kneer, R.Quantification of the influence of parameters determining radiative heat transfer in an oxy-fuel operated boiler, Fuel Processing Technology, 157: 76-89, 2017.

  • Graeser, P. and Schiemann, M.Emissivity of burning bituminous coal char particles – Burnout effects, Fuel, 196: 336-343, 2017.

  • Schiemann, M., Graeser, P., Heuer, S., Vorobiev, N. and Scherer, V.Combustion investigations with Colombian coal: Summary of experiments and numerical interpretation, 42nd International Technical Conference on Clean Energy, Clearwater, Florida, USA, 2017.

  • Cerciello, F., Cortese, L., Heuer, S., Scherer, V., Schiemann, M. and Senneca, O.Effect of CO2 on chars produced from coal and biomass at high heating rates, 39th Meeting of the Italian Section of the Combustion Institute, Naples, Italy, 2016.

  • Cerciello, F., Cortese, L., Heuer, S., Scherer, V., Schiemann, M. and Senneca, O.Effect of CO2 on coal pyrolysis at high and low heating rates on char reactivity, 39th Meeting of the Italian Section of the Combustion Institute, Naples, Italy, 2016.

  • Farazi, S., Schiemann, M., Vorobiev, N., Scherer, V., Kang, S. and Pitsch, H.A New Variable Transport Coefficient Single-Film Model for Char Combustion, 8th European Combustion Meeting, Dubrovnik, Croatia, 2017.

  • Becker, A., Schiemann, M., Scherer, V., Shaddix, C. R., Haxter, D. and Mayer, J.Comparative ignition tests of coal under oxy-fuel conditions in a standardized laboratory test rig, Fuel, 208: 127-136, 2017.

  • Senneca, O., Vorobiev, N., Wütscher, A., Cerciello, F., Heuer, S., Wedler, C., Span, R., Schiemann, M., Muhler, M. and Scherer, V.Assessment of combustion rates of coal chars for oxy-combustion applications, 2nd International Workshop on Oxy-fuel Combustion, Bochum, Germany, 2018.

  • Farazi, S., Attili, A., Heuer, S., Schiemann, M., Scherer, V. and Pitsch, H.Modeling and Simulation of Coal Ignition and Combustion under Oxy-Fuel Condition, 2nd International Workshop on Oxy-fuel Combustion, Bochum, Germany, 2018.

  • Schiemann, M., Vorobiev, N., Scherer, V., Wedler, C., Richter, M. and Span, R.Effektive Diffusionskoeffizienten in Kokspartikeln aus Oxyfuel-Feuerungen, 28. Deutscher Flammentag, 395-406, Darmstadt, Germany, 2017.

  • Senneca, O., Cerciello, F., Cortese, L., Heuer, S., Schiemann, M. and Scherer, V.Effects of oxy-fuel conditions on walnut shells pyrolysis in a drop tube reactor, 10th Mediterranean Combustion Symposium, Naples, Italy, 2017.

  • Senneca, O, Cerciello, F, Cortese, L, Heuer, S, Schiemann, M and Scherer, VEffects of CO2 enriched atmosphere on chars from walnut shells pyrolysis in a drop tube reactor, Fuel, 229: 235-240, 2018. doi 

  • Becker, A., Schiemann, M., Scherer, V., Haxter, D. and Mayer, J.Pulverized coal ignition testing under air-fired conditions using the Zelkowski method: comparison of coals of different rank and provenience, Energy Procedia, 120: 173-180, 2017. doi 

  • Graeser, P., Wütscher, A., Cerciello, F., Muhler, M. and Schiemann, M.Emissivity Comparison between Chars and Demineralized Coal Chars under Oxycombustion Conditions, Chemical Engineering & Technology, 41 (7): 1490-1496, 2018.

  • Vorobiev, N., Schiemann, M. and Scherer, V.Optical investigation of char combustion kinetics under oxy-fuel conditions, IFRF 2018 Conference, Sheffield, United Kingdom, 2018.

  • Köser, J., Li, T., Vorobiev, N., Dreizler, A., Schiemann, M. and Böhm, B.Multi-parameter diagnostics for high-resolution in-situ measurements of single coal particle combustion, Proceedings of the Combustion Institute, 37 (3): 2893-2900, 2019.

  • Gronarz, T., Schiemann, M. and Kneer, R.Sensitivity Analysis for Parameters for Radiative Heat Transfer in a 3-D pulverized Coal Combustion Scenario, Eurotherm Seminar 110 – Computational Thermal Radiation in Participating Media – VI, Cascais, Portugal, 2018.

  • Senneca, O., Apicella, B., Russo, C., Cerciello, F., Salatino, P., Heuer, S., Wütscher, A., Schiemann, M., Muhler, M. and Scherer, V.Pyrolysis and Thermal Annealing of Coal and Biomass in CO2-Rich Atmospheres, Energy & Fuels, 32 (10): 10701-10708, 2018.

  • Senneca, O., Heuer, S., Bareschino, P., Urciuolo, M., Pepe, F., Schiemann, M., Chirone, R. and Scherer, V.Fragmentation of pulverized coal in a laminar drop tube reactor: Experiments and model, Proceedings of the Combustion Institute, 2018.

  • Senneca, O., Vorobiev, N., Wütscher, A., Cerciello, F., Heuer, S., Wedler, C., Span, R., Schiemann, M., Muhler, M. and Scherer, V.Assessment of combustion rates of coal chars for oxy-combustion applications, Fuel, 238: 173-185, 2019.

  • Schiemann, M., Gronarz, T., Graeser, P., Gorewoda, J., Kneer, R. and Scherer, V.A correlation between char emissivity and temperature, Fuel, 256: 115889, 2019.

  • Panahi, A., Vorobiev, N., Schiemann, M., Tarakcioglu, M., Delichatsios, M. and Levendis, Y. A.Combustion details of raw and torrefied biomass fuel particles with individually-observed size, shape and mass, Combustion and Flame, 207: 327-341, 2019.

  • Heuer, S., Wedler, C., Ontyd, C., Schiemann, M., Span, R., Richter, M. and Scherer, V.Evolution of coal char porosity from CO2-pyrolysis experiments, Fuel, 253: 1457-1464, 2019.

  • Pielsticker, S., Ontyd, C., Kreitzberg, T., Hatzfeld, O., Schiemann, M., Scherer, V. and Kneer, R.Adaptation of the Chemical Percolation Devolatilization Model for Low Temperature Pyrolysis in a Fluidized Bed Reactor, Combustion Science and Technology, 52: 1-18, 2019.

  • Debiagi, P., Ontyd, C., Heuer, S., Pielsticker, S., Schiemann, M., Faravelli, T., Kneer, R., Scherer, V. and Hasse, C.Solid Fuel Kinetics for Oxy-Fuel conditions, 29. Deutscher Flammentag, 2019.

  • Debiagi, P., Heuer, S., Ontyd, C., Schiemann, M., Faravelli, T., Hasse, C. and Scherer, V.Differences in Formation and Oxidation Of Colombian Coal Chars in Air and Oxy-Fuel Atmospheres, Chemical Engineering Transactions, 74: 151-156, 2019.

  • Li, T., Köser, J., Schiemann, M., Dreizler, A. and Böhm, B.Untersuchungen der Verbrennung von Einzelpartikeln und Partikelgruppen mit zeitaufgelöster volumetrischer Messung des OH-Radikals, 29. Deutscher Flammentag, 2019.

  • Li, T., Köser, J., Dreizler, A., Schiemann, M. and Böhm, B.Time-resolved volumetric measurement of OH radicals on single particle and particle group combustion, 14th International Conference on Sustainable Development of Energy, Water and Environment Systems, 2019.

  • von Bohnstein, M., Graeser, P., Schiemann, M., Ströhle, J. and Epple, B.3D CFD Simulation of a 250 MWel Oxy-fuel Boiler with Evaluation of Heat Radiation Calculation, 14th International Conference on Sustainable Development of Energy, Water and Environment Systems, 2019.

  • Debiagi, P., Ontyd, C., Pielsticker, S., Schiemann, M., Faravelli, T., Kneer, R., Hasse, C. and Scherer, V.Calibration and Validation of a Comprehensive Kinetic Model of Coal Conversion in Inert, Air and Oxy-Fuel Conditions Using Data from Multiple Test Rigs, Fuel: (accepted), 2020.

  • Ontyd, C., Pielsticker, S., Yildiz, C., Schiemann, M., Hatzfeld, O., Ströhle, J., Epple, B., Kneer, R. and Scherer, V.Experimental determination of walnut shell pyrolysis kinetics in N2 and CO2 via thermogravimetric analysis, fluidized bed and drop tube reactors, Fuel: 119313, 2020.

  • Eckhard, T., Valentiner, S., Pflieger, C., Lotz, K., Schiemann, M., Scherer, V. and Muhler, M.The Catalytic Influence of Doped Metals on the Pyrolysis Product Distribution and Resulting Chars of Hydrothermally Derived Model Fuels, 3rd International Workshop on Oxy-Fuel Combustion, 2020.

  • Ontyd, C., Senneca, O., Schiemann, M. and Scherer, V.A2 – Influence of water vapour on tar and gas formation during biomass pyrolysis under N2 and CO2 atmosphere in a drop tube reactor, 3rd International Workshop on Oxy-Fuel Combustion, 2020.

  • Pflieger, C., Lotz, K., Hilse, N., Berger, C. M., Schiemann, M., Debiagi, P., Hasse, C., Scherer, V., Muhler, M. and Debiagi, P.Catalytic Influence of Mineral Compounds on the Reactivity of Cellulose-Derived Char in O2-, CO2-, and H2O-Containing Atmospheres, Fuel, 2020.

  • Senneca, O., Ontyd, C., Cerciello, F., Schiemann, M. and Scherer, V.Extension of the Thermal Annealing Concepts developed for coal combustion to conversion of lignocellulosic biomass, Energy & Fuels, 34 (3): 3661-3670, 2020.

  • Vorobiev, N., Valentiner, S., Schiemann, M. and Scherer, V.Comprehensive Data Set of Single Particle Combustion under Oxy-fuel Conditions, Part I: Measurement Technique, Combustion Science and Technology, 56 (2): 1-22, 2020.

  • Vorobiev, N., Valentiner, S., Schiemann, M. and Scherer, V.Comprehensive Data Set of Single Particle Combustion under Oxy-fuel Conditions, Part II: Data Set, Combustion Science and Technology, 5 (1): 1-16, 2020.

  • Wedler, C., Ontyd, C., Schiemann, M., Scherer, V., Richter, M. and Span, R.Evolution of micro- and mesopore structure during pyrolysis of coal and biomass in different atmospheres, 3rd International Workshop on Oxy-Fuel Combustion, 2020.

  • Vorobiev, N., Kruse, S., Pitsch, H. and Schiemann, M.Demonstration of laser-induced incandescence in single coal particle enveloping flames, 9th European Combustion Meeting, 2019.

  • Schneider, H., Valentiner, S., Vorobiev, N., Böhm, B., Schiemann, M., Scherer, V., Kneer, R. and Dreizler, A.Investigation on flow dynamics and temperatures of solid fuel particles in a gas-assisted oxy-fuel combustion chamber, Fuel, 286: 119424, 2021.

  • Li, T., Schiemann, M., Köser, J., Dreizler, A. and Böhm, B.Experimental investigations of single particle and particle group combustion in a laminar flow reactor using simultaneous volumetric OH-LIF imaging and diffuse backlight-illumination, Renewable and Sustainable Energy Reviews, 136: 110377, 2021.

  • Li, T., Geschwindner, C., Köser, J., Schiemann, M., Dreizler, A. and Böhm, B.Investigation of the transition from single to group coal particle combustion using high-speed scanning OH-LIF and diffuse backlight-illumination, Proceedings of the Combustion Institute, 2020.

  • Koch, M., Pörtner, L., Gu, Y., Schiemann, M., Rohlfs, W. and Kneer, R.Comparison of scattering phase functions of reacting and non-reacting pulverised fuel particles, Fuel: 119415, 2020.

  • Graeser, P., Pörtner, L. and Schiemann, M.Influence of the Mineral Content on the Emissivity of Hydrothermal Char, Chemical Engineering & Technology, 43 (5): 1016-1020, 2020.

  • Graeser, P. and Schiemann, M.Investigations on the emissivity of burning coal char particles: Influence of particle temperature and composition of reaction atmosphere, Fuel, 263: 116714, 2020.

  • Pörtner, L., Gu, Y. and Schiemann, M.Investigation of Pulverized Biomass and Coal Char Emissivity, Energies, 13 (18): 4620, 2020.

  • Schiemann, M., Graeser, P. and Pörtner, L.Char emissivity measurements for coal chars, 9th European Combustion Meeting, 2019.

  • von Bohnstein, M., Richter, M., Graeser, P., Schiemann, M., Ströhle, J. and Epple, B.3D CFD simulation of a 250 MWel oxy-fuel boiler with evaluation of heat radiation calculation, Renewable and Sustainable Energy Reviews, 137, 2021.

  • von Bohnstein, M., Graeser, P., Schiemann, M., Ströhle, J. and Epple, B.3D CFD Simulation of a 250 MWel Oxy-fuel Boiler with Evaluation of Heat Radiation Calculation, 29. Deutscher Flammentag, Bochum, Germany, 2019.

  • Hassan, A., Sayadi, T., Schiemann, M. and Scherer, V.Adjoint-based sensitivity analysis of char combustion surface reaction kinetics, Fuel, 287, 2021.

  • Eckhard, T., Pflieger, C., Schmidt, S., Böttger, J., Senneca, O., Schiemann, M., Scherer, V., Muhler, M. and Cerciello, F.Catalytic effects for cellulose-based model fuels under low and high heating rate in air and oxy-fuel atmosphere, Fuel, 324: 124437, 2022.

  • Tarlinski, D., Freisewinkel, E., Eisenbach, T., Span, R., Schiemann, M. and Scherer, V.Char burnout of walnut shells using optical measurement techniques and first comparison of the experimental data to the CCK model, 46th International Technical Conference on Clean Energy, 2022.

  • Eckhard, T., Pflieger, C., Russo, C., Böttger, J., Senneca, O., Apicella, B., Schiemann, M., Scherer, V., Muhler, M. and Cerciello, F.Mineral effects on chemical and physical transformations of cellulose-based model fuels in N2 and CO2 atmospheres, 23rd edition of the International Conference on Analytical and Applied Pyrolysis, 2022.

  • Eckhard, T., Pflieger, C., Russo, C., Böttger, J., Senneca, O., Apicella, B., Schiemann, M., Scherer, V., Muhler, M. and Cerciello, F.Mineral effects on chemical and physical transformations of cellulose-based model fuels in N2 and CO2 atmospheres, 13th European Conference on Industrial Furnaces and Boilers, 2022.

  • Pörtner, L. and Schiemann, M.Optimization of a setup to investigate the morphology and emissivity of coal and biomass particles during burnout, 46th International Technical Conference on Clean Energy, 2022.

  • Tarlinski, D., Geschwindner, C., Li, T., Böhm, B. and Schiemann, M.Optische Charakterisierung der volatilen Flamme in Partikelsträhnen in Abhängigkeit von der Partikelanzahldichte, 30. Deutscher Flammentag, 2021.

Projects

Ruhr-Universität Bochum Lehrstuhl für Anorganische Chemie II

Contact

rochus.schmid@rub.de http://www.rochusschmid.de

Publications

  • Influence of biomass torrefaction parameters on fast pyrolysis products under flame-equivalent conditions, Biomass and Bioenergy, 119: 392-410, 2018.

  • Computational Chemistry as a Tool for Predictive Combustion Modelling, 14th International Conference on Sustainable Development of Energy, Water and Environment Systems, Dubrovnik, Croatia, 2019.

  • Adsorption und Diffusion bei der Oxyfuel-Verbrennung von Festbrennstoffen: Vergleich von Experiment und MD-Simulation, 29. Deutscher Flammentag, 2019.

  • Adsorption and diffusion in oxyfuel combustion – Linking experiment and MD simulation through graphite structures as a first example, Diffusion Fundamentals 8, 2019.

  • Angenent, V., Oelert, D. and Schmid, R.In silico design of atomistic char models of curved stacked carbon layers, 11th Mediterranean Combustion Symposium, 2019.

  • Can small polyaromatics describe their larger counterparts for local reactions? A computational study on the H-abstraction reaction by an H-atom from polyaromatics, The Journal of Physical Chemistry A, 2020.

  • Chen, B., Kruse, S., Schmid, R., Cai, L., Hansen, N. and Pitsch, H.Oxygenated PAH formation chemistry investigation in anisole jet stirred reactor oxidation by a thermodynamic approach, 3rd International Workshop on Oxy-Fuel Combustion, 2020.

  • Chen, B., Kruse, S., Schmid, R., Cai, L., Hansen, N. and Pitsch, H.Oxygenated PAH Formation Chemistry Investigation in Anisole Jet Stirred Reactor Oxidation by a Thermodynamic Approach, Energy & Fuels, 35 (2), 2021.

  • An automatized workflow from molecular dynamic simulation to quantum chemical methods to identify elementary reactions and compute reaction constants, Journal of Computational Chemistry, 2021.

Projects

Ruhr-Universität Bochum Computational Materials Chemistry

Contact

gunnar.schmitz@rub.de

Publications

  • Can small polyaromatics describe their larger counterparts for local reactions? A computational study on the H-abstraction reaction by an H-atom from polyaromatics, The Journal of Physical Chemistry A, 2020.

  • An automatized workflow from molecular dynamic simulation to quantum chemical methods to identify elementary reactions and compute reaction constants, Journal of Computational Chemistry, 2021.

Projects

Technische Universität Darmstadt Reaktive Strömungen und Messtechnik

Contact

hschneider@rsm.tu-darmstadt.de

Publications

  • Schneider, H., Becker, L., Pielsticker, S., Böhm, B., Kneer, R. and Dreizler, A.Experimental investigation and comparison of particle-laden flows in a gas-assisted oxycoal combustion chamber for reacting and non-reacting conditions, 9th European Combustion Meeting, 2019.

  • Wen, Xu, Nicolai, H., Schneider, H., Cai, L., Janicka, J., Pitsch, H. and Hasse, C.Flamelet LES of a swirl-stabilized multi-stream pulverized coal burner in air and oxy-fuel atmospheres with pollutant formation, Proceedings of the Combustion Institute, 2020.

  • Schneider, H., Valentiner, S., Vorobiev, N., Böhm, B., Schiemann, M., Scherer, V., Kneer, R. and Dreizler, A.Investigation on flow dynamics and temperatures of solid fuel particles in a gas-assisted oxy-fuel combustion chamber, Fuel, 286: 119424, 2021.

  • Nicolai, H., Künne, G., Knappstein, R., Schneider, H., Becker, L., Hasse, C., di Mare, F., Dreizler, A. and Janicka, J.Large Eddy Simulation of a laboratory-scale gas-assisted pulverized coal combustion chamber under oxy-fuel atmospheres using tabulated chemistry, Fuel, 272: 117683, 2020.

  • Schneider, H., Böhm, B., Kneer, R. and Dreizler, A.B4 – Visualization and analysis of solid fuel particle tracectories in a gas-assisted oxy-fuel combustion chamber, 3rd International Workshop on Oxy-Fuel Combustion, 2020.

  • Meißner, C., Schneider, H., Sidiropoulos, E., Hölzer, J. I., Heckmann, T., Böhm, B., Dreizler, A. and Seeger, T.Investigation on wall and gas temperatures inside a swirled oxy-fuel combustion chamber using thermographic phosphors, O2 rotational and vibrational CARS, Fuel, 289: 119787, 2021.

  • Emmert, J., Schneider, H., Meißner, C., Sidiropoulos, E., Hölzer, J. I., Seeger, T., Böhm, B., Dreizler, A. and Wagner, S.Characterization of temperature distributions in a swirled oxy-fuel coal combustor using tomographic absorption spectroscopy with fluctuation modelling, Applications in Energy and Combustion Science, 6: 100025, 2021.

  • Schneider, H., Becker, L., Kneer, R. and Dreizler, A.Visualisierung und Analyse von Gasphasengeschwindigkeit und Partikeltrajektorien in einem gasassistierten Oxyfuel-Staubbrenner, 29. Deutscher Flammentag, 2019.

Projects

RWTH Aachen University Lehrstuhl für Strömungslehre und Aerodynamisches Institut

Contact

office@aia.rwth-aachen.de

Publications

  • Brito Gadeschi, G., Schneiders, L., Meinke, M. and Schröder, W.A numerical method for multiphysics simulations based on hierarchical Cartesian grids, Journal of Fluid Science and Technology, 10 (1): JFST0002, 2015.

  • Schneiders, L., Günther, C., Meinke, M. and Schröder, W.An efficient conservative cut-cell method for rigid bodies interacting with viscous compressible flows, Journal of Computational Physics, 311: 62-86, 2016.

  • Gronarz, T., Schnell, M., Siewert, C., Schneiders, L., Schröder, W. and Kneer, R.Comparison of scattering behaviour for spherical and non-spherical particles in pulverized coal combustion, International Journal of Thermal Sciences, 111: 116-128, 2017.

  • Schneiders, L., Meinke, M. and Schröder, W.On the accuracy of Lagrangian point-mass models for heavy non-spherical particles in isotropic turbulence, Fuel, 201: 2-14, 2017.

  • Schneiders, L., Grimmen, J. H., Meinke, M. and Schröder, W.An efficient numerical method for fully-resolved particle simulations on high-performance computers, PAMM, 15 (1): 495-496, 2015.

  • Schneiders, L., Günther, C., Grimmen, J. H., Meinke, M. and Schröder, W.Sharp resolution of complex moving geometries using a multi-cut-cell viscous flow solver, AIAA Paper 2015-3427: 507, 2015.

  • Fröhlich, K., Schneiders, L., Meinke, M. and Schröder, W.Assessment of Non-Spherical Point-Particle Models in LES using Direct Particle-Fluid Simulations, AIAA Paper 2018-3714, 2018.

  • Fröhlich, K., Schneiders, L., Meinke, M. and Schröder, W.Validation of Lagrangian Two-Way Coupled Point-Particle Models in Large-Eddy Simulations, Flow, Turbulence and Combustion, 101 (2): 317-341, 2018.

  • Schneiders, L., Meinke, M. and Schröder, W.Direct particle-fluid simulation of Kolmogorov-length-scale size particles in decaying isotropic turbulence, Journal of Fluid Mechanics, 819: 188-227, 2017.

  • Schneiders, L., Fröhlich, K., Meinke, M. and Schröder, W.The decay of isotropic turbulence carrying non-spherical finite-size particles, Journal of Fluid Mechanics, 875: 520-542, 2019.

  • Fröhlich, K., Schneiders, L., Meinke, M. and Schröder, W.Direct particle-fluid simulation of Kolmogorov-length-scale size ellipsoidal particles in isotropic decaying turbulence, 11th International Symposium on Turbulence and Shear Flow Phenomena, Southampton, United Kingdom, 2019.

  • Fröhlich, K., Meinke, M. and Schröder, W.Correlations for inclined prolates based on highly resolved simulations, Journal of Fluid Mechanics, 901: A5, 2020.

  • Fröhlich, K., Schneiders, L., Meinke, M. and Schröder, W.Ambient flow properties of Kolmogorov-length-scale size non-spherical particles in isotropic turbulence, ERCOFTAC Workshop Direct and Large Eddy Simulation XII, 175-181, SPRINGER NATURE, 2020.

  • Fröhlich, K. and Schröder, W.B2 – Development of fluid-particle interaction models in turbulent flows, 2nd International Workshop on Oxy-fuel Combustion, 2018.

  • Fröhlich, K., Schneiders, L., Meinke, M. and Schröder, W.Analysis of the Interphase Coupling using Direct Particle-Fluid Simulations for Finite-Size Particles, 16th European Turbulence Conference, 2017.

  • Fröhlich, K., Schneiders, L., Meinke, M. and Schröder, W.Assessement of Lagrangian two-way coupled point-particle models using direct particle-fluid simulations, 18. STAB-Workshop, 2017.

  • Fröhlich, K., Schneiders, L., Meinke, M. and Schröder, W.Improved Lagrangian Two-Way Coupled Point-Particle Models using Direct Particle-Fluid Simulations, 11th workshop on Direct and Large Eddy Simulation, 2017.

  • Kiwitt, T., Fröhlich, K., Meinke, M. and Schröder, W.Nusselt correlation for ellipsoidal particles, International Journal of Multiphase Flow, 149: 103941, 2022.

  • Fröhlich, K., Farmand, P., Pitsch, H., Meinke, M. and Schröder, W.Particle Reynolds number effects on settling ellipsoids in isotropic turbulence, International Journal of Multiphase Flow, 139, 2021.

Projects

RWTH Aachen University Lehrstuhl für Wärme- und Stoffübertragung

Consiglio Nazionale delle Ricerche Istituto di Scienze e Tecnologie per l’Energia e la Mobilità Sostenibili (STEMS - CNR)

Contact

o.secceca@irc.cnr.it

Publications

  • Apicella, B., Senneca, O., Russo, C., Heuer, S., Cortese, L., Cerciello, F., Scherer, V., Schiemann, M. and Ciajolo, A.Separation and characterization of carbonaceous particulate (soot and char) produced from fast pyrolysis of coal in inert and CO2 atmospheres, Fuel, 201: 118-123, 2017. doi 

  • Apicella, B., Russo, C., Ciajolo, A., Cortese, L., Cerciello, F., Stanzione, F., Wütscher, A., Muhler, M. and Senneca, O.High temperature pyrolysis of lignite and synthetic carbons, Fuel, 241: 264-272, 2019.

  • Cerciello, F., Cortese, L., Heuer, S., Scherer, V., Schiemann, M. and Senneca, O.Effect of CO2 on chars produced from coal and biomass at high heating rates, 39th Meeting of the Italian Section of the Combustion Institute, Naples, Italy, 2016.

  • Cerciello, F., Cortese, L., Heuer, S., Scherer, V., Schiemann, M. and Senneca, O.Effect of CO2 on coal pyrolysis at high and low heating rates on char reactivity, 39th Meeting of the Italian Section of the Combustion Institute, Naples, Italy, 2016.

  • Krusch, S., Scherer, V., Solimene, R., Ruoppolo, G., Cerciello, F., Pielsticker, S., Kneer, R., Schlögel, K. U. and Senneca, O.Comparison of different diagnostic techniques for the assessment of coal pyrolysis rate, Joint Meeting the German and Italian Sections of the Combustion Institute, 2018.

  • Pielsticker, S., Heuer, S., Senneca, O., Cerciello, F., Salatino, P., Cortese, L., Gövert, B., Hatzfeld, O., Schiemann, M., Scherer, V. and Kneer, R.Comparison of pyrolysis test rigs for oxy-fuel conditions, Fuel Processing Technology, 156: 461-472, 2017. doi 

  • Pielsticker, S., Senneca, O., Kreitzberg, T., Cerciello, F., Hatzfeld, O. and Kneer, R.Comparability and validity range of pyrolysis kinetics from Chinese coals obtained with different experimental setups, 9th International Symposium on Coal Combustion, 2019.

  • Senneca, O., Cerciello, F., Heuer, S. and Ammendola, P.Slow pyrolysis of walnut shells in nitrogen and carbon dioxide, Fuel, 225: 419-425, 2018.

  • Senneca, O., Cerciello, F., Heuer, S. and Ammendola, P.Slow pyrolysis of walnut shells in nitrogen and carbon dioxide, 10th Mediterranean Combustion Symposium, Naples, Italy, 2017.

  • Senneca, O., Cerciello, F., Cortese, L., Heuer, S., Schiemann, M. and Scherer, V.Effects of oxy-fuel conditions on walnut shells pyrolysis in a drop tube reactor, 10th Mediterranean Combustion Symposium, Naples, Italy, 2017.

  • Senneca, O, Cerciello, F, Cortese, L, Heuer, S, Schiemann, M and Scherer, VEffects of CO2 enriched atmosphere on chars from walnut shells pyrolysis in a drop tube reactor, Fuel, 229: 235-240, 2018. doi 

  • Senneca, O., Apicella, B., Russo, C., Cerciello, F., Salatino, P., Heuer, S., Wütscher, A., Schiemann, M., Muhler, M. and Scherer, V.Pyrolysis and Thermal Annealing of Coal and Biomass in CO2-Rich Atmospheres, Energy & Fuels, 32 (10): 10701-10708, 2018.

  • Senneca, O., Vorobiev, N., Wütscher, A., Cerciello, F., Heuer, S., Wedler, C., Span, R., Schiemann, M., Muhler, M. and Scherer, V.Assessment of combustion rates of coal chars for oxy-combustion applications, 2nd International Workshop on Oxy-fuel Combustion, Bochum, Germany, 2018.

  • Senneca, O., Vorobiev, N., Wütscher, A., Cerciello, F., Heuer, S., Wedler, C., Span, R., Schiemann, M., Muhler, M. and Scherer, V.Assessment of combustion rates of coal chars for oxy-combustion applications, Fuel, 238: 173-185, 2019.

  • Senneca, O., Ontyd, C., Cerciello, F., Schiemann, M. and Scherer, V.Extension of the Thermal Annealing Concepts developed for coal combustion to conversion of lignocellulosic biomass, Energy & Fuels, 34 (3): 3661-3670, 2020.

  • Senneca, O., Cerciello, F., Russo, C., Wütscher, A., Muhler, M. and Apicella, B.Thermal treatment of lignin, cellulose and hemicellulose in nitrogen and carbon dioxide, Fuel, 271: 117656, 2020.

  • Bareschino, P., Urciuolo, M., Scherer, V., Chirone, R. and Senneca, O.Effect of O2/CO2 atmospheres on coal fragmentation, Fuel, 267: 117145, 2020.

  • Ontyd, C., Senneca, O., Schiemann, M. and Scherer, V.A2 – Influence of water vapour on tar and gas formation during biomass pyrolysis under N2 and CO2 atmosphere in a drop tube reactor, 3rd International Workshop on Oxy-Fuel Combustion, 2020.

  • Wütscher, A, Apicella, B, Russo, C, Stanzione, F, Ciajolo, A, Heuer, S, Scherer, V, Muhler, M and Senneca, OCharacterization of tar produced from walnut shells pyrolysis, 40th Meeting of the Italian Section of the Combustion Institute, Rome, 2017.

  • Senneca, O., Apicella, B., Heuer, S., Schiemann, M., Scherer, V., Stanzione, F., Ciajolo, A. and Russo, C.Effects of CO2 on submicronic carbon particulate (soot) formed during coal pyrolysis in a drop tube reactor, Combustion and Flame, 172: 302-308, 2016. doi 

  • Heuer, S., Senneca, O., Wütscher, A., Düdder, H., Schiemann, M., Muhler, M. and Scherer, V.Effects of oxy-fuel conditions on the products of pyrolysis in a drop tube reactor, Fuel Processing Technology, 150: 41-49, 2016. doi 

  • Senneca, O., Heuer, S., Bareschino, P., Urciuolo, M., Pepe, F., Schiemann, M., Chirone, R. and Scherer, V.Fragmentation of pulverized coal in a laminar drop tube reactor: Experiments and model, Proceedings of the Combustion Institute, 2018.

  • Cerciello, F., Apicella, B., Russo, C., Cortese, L. and Senneca, O.Effects of pressure on lignocellulosic biomass fast pyrolysis in nitrogen and carbon dioxide, Fuel: 119604, 2020.

  • Eckhard, T., Pflieger, C., Schmidt, S., Böttger, J., Senneca, O., Schiemann, M., Scherer, V., Muhler, M. and Cerciello, F.Catalytic effects for cellulose-based model fuels under low and high heating rate in air and oxy-fuel atmosphere, Fuel, 324: 124437, 2022.

  • Ontyd, C., Freisewinkel, E., Wedler, C., Eisenbach, T., Span, R., Senneca, O. and Scherer, V.Flash pyrolysis of walnut shells and poplar in N2 and CO2: pyrolysis kinetics, pore evolution and a model for evaluation of pyrolysis species, 13th European Conference on Industrial Furnaces and Boilers, 2022.

  • Böttger, J., Eckhard, T., Pflieger, C., Senneca, O., Muhler, M. and Cerciello, F.Green coal substitutes for boilers through hydrothermal carbonization of biomass, 13th European Conference on Industrial Furnaces and Boilers, 2022.

  • Eckhard, T., Pflieger, C., Russo, C., Böttger, J., Senneca, O., Apicella, B., Schiemann, M., Scherer, V., Muhler, M. and Cerciello, F.Mineral effects on chemical and physical transformations of cellulose-based model fuels in N2 and CO2 atmospheres, 23rd edition of the International Conference on Analytical and Applied Pyrolysis, 2022.

  • Eckhard, T., Pflieger, C., Russo, C., Böttger, J., Senneca, O., Apicella, B., Schiemann, M., Scherer, V., Muhler, M. and Cerciello, F.Mineral effects on chemical and physical transformations of cellulose-based model fuels in N2 and CO2 atmospheres, 13th European Conference on Industrial Furnaces and Boilers, 2022.

Projects

RWTH Aachen University Lehrstuhl für Wärme- und Stoffübertragung

Ruhr-Universität Bochum Lehrstuhl für Thermodynamik

Contact

Roland.Span@thermo.rub.de

Publications

  • Fieback, T. and Span, R.High Temperature Sorption Measurements for Determining Surface Effects of Solid Fuels, Energy Procedia, 61: 1501-1504, 2014.

  • Seibel, C., Wedler, C., Vorobiev, N., Schiemann, M., Scherer, V., Span, R. and Fieback, T.Sorption measurements for determining surface effects and structure of solid fuels, Fuel Processing Technology, 153: 81-86, 2016.

  • Wütscher, A., Wedler, C., Seibel, C., Hiltrop, D., Fieback, T., Muhler, M. and Span, R.On the alternating physicochemical characteristics of Colombian coal during pyrolysis, Journal of Analytical and Applied Pyrolysis, 123: 12-19, 2017.

  • Senneca, O., Vorobiev, N., Wütscher, A., Cerciello, F., Heuer, S., Wedler, C., Span, R., Schiemann, M., Muhler, M. and Scherer, V.Assessment of combustion rates of coal chars for oxy-combustion applications, 2nd International Workshop on Oxy-fuel Combustion, Bochum, Germany, 2018.

  • Schiemann, M., Vorobiev, N., Scherer, V., Wedler, C., Richter, M. and Span, R.Effektive Diffusionskoeffizienten in Kokspartikeln aus Oxyfuel-Feuerungen, 28. Deutscher Flammentag, 395-406, Darmstadt, Germany, 2017.

  • Wedler, C., Richter, M. and Span, R.Integration of sorption kinetics in carbon conversion modeling for the description of oxyfuel combustion processes, Energy Procedia, 142: 1361-1366, 2017.

  • Wedler, C., Arami-Niya, A., Xiao, G., Span, R., May, E. F. and Richter, M.Gas Diffusion and Sorption in Carbon Conversion, Energy Procedia, 158: 1792-1797, 2019.

  • Senneca, O., Vorobiev, N., Wütscher, A., Cerciello, F., Heuer, S., Wedler, C., Span, R., Schiemann, M., Muhler, M. and Scherer, V.Assessment of combustion rates of coal chars for oxy-combustion applications, Fuel, 238: 173-185, 2019.

  • Wedler, C., Arami-Niya, A., Xiao, G., Span, R., May, E. F. and Richter, M.Sorption Kinetics of CO2, CH4 and O2 on Cellulose-based Hydrochars for Carbon Conversion Modelling, Thermodynamik-Kolloquium 2018, 2018.

  • Wedler, C., Richter, M. and Span, R.Sorptive determination of effective diffusion coefficients for integration in carbon conversion models, 2nd International Workshop on Oxy-fuel Combustion, 2018.

  • Wedler, C., Seibel, C., Richter, M., Fieback, T. and Span, R.Oxyfuel Combustion – Experimental Investigation of Sorption Effects on Coal Char, Energy Procedia, 105: 1847-1851, 2017.

  • Wedler, C., Span, R. and Richter, M.Adsorption und Diffusion bei der Oxyfuel-Verbrennung: Graphit als Türöffner zur Verknüpfung von Experiment und MD-Simulation, Jahrestreffen der ProcessNet-Fachgruppen Adsorption und Hochdruckverfahrenstechnik, 2019.

  • Heuer, S., Wedler, C., Ontyd, C., Schiemann, M., Span, R., Richter, M. and Scherer, V.Evolution of coal char porosity from CO2-pyrolysis experiments, Fuel, 253: 1457-1464, 2019.

  • Adsorption und Diffusion bei der Oxyfuel-Verbrennung von Festbrennstoffen: Vergleich von Experiment und MD-Simulation, 29. Deutscher Flammentag, 2019.

  • Adsorption and diffusion in oxyfuel combustion – Linking experiment and MD simulation through graphite structures as a first example, Diffusion Fundamentals 8, 2019.

  • Wedler, C., Ontyd, C., Schiemann, M., Scherer, V., Richter, M. and Span, R.Evolution of micro- and mesopore structure during pyrolysis of coal and biomass in different atmospheres, 3rd International Workshop on Oxy-Fuel Combustion, 2020.

  • Wedler, C., Lotz, K., Arami-Niya, A., Xiao, G., Span, R., Muhler, M., May, E. F. and Richter, M.Influence of Mineral Composition of Chars Derived by Hydrothermal Carbonization on Sorption Behavior of CO2, CH4, and O2, ACS Omega, 2020.

  • Wedler, C. and Span, R.A pore-structure dependent kinetic adsorption model for consideration in char conversion – Adsorption kinetics of CO2 on biomass chars, Chemical Engineering Science: 116281, 2020.

  • Wedler, C., Span, R. and Richter, M.Comparison of micro- and macropore evolution of coal char during pyrolysis, Fuel, 275: 117845, 2020.

  • Wedler, C., Eisenbach, T., Schwarz, J. and Span, R.A first parameterization of the pore-structure dependent kinetic adsorption model for O2 adsorption in biomass conversion modeling, 13th International Conference on Applied Energy, 2021.

  • Tarlinski, D., Freisewinkel, E., Eisenbach, T., Span, R., Schiemann, M. and Scherer, V.Char burnout of walnut shells using optical measurement techniques and first comparison of the experimental data to the CCK model, 46th International Technical Conference on Clean Energy, 2022.

  • Ontyd, C., Freisewinkel, E., Wedler, C., Eisenbach, T., Span, R., Senneca, O. and Scherer, V.Flash pyrolysis of walnut shells and poplar in N2 and CO2: pyrolysis kinetics, pore evolution and a model for evaluation of pyrolysis species, 13th European Conference on Industrial Furnaces and Boilers, 2022.

  • Wedler, C. and Span, R.Micropore Analysis of Biomass Chars by CO2 Adsorption: Comparison of Different Analysis Methods, Energy & Fuels, 35 (10): 8799-8806, 2021.

Projects

Technische Universität Darmstadt Simulation of reactive Thermo-Fluid Systems

Ruhr-Universität Bochum Lehrstuhl für Energieanlagen und Energieprozesstechnisch

Contact

streier@leat.rub.de

Projects

Technische Universität Darmstadt Fachgebiet Energiesysteme und Energietechnik

Contact

jochen.Stroehle@est.tu-darmstadt.de

Publications

  • Frigge, L., Elserafi, G., Ströhle, J. and Epple, B.Sulfur and Chlorine Gas Species Formation during Coal Pyrolysis in Nitrogen and Carbon Dioxide Atmosphere, Energy & Fuels, 30 (9): 7713-7720, 2016.

  • von Bohnstein, M., Langen, J., Frigge, L., Stroh, A., Ströhle, J. and Epple, B.Comparison of CFD Simulations with Measurements of Gaseous Sulfur Species Concentrations in a Pulverized Coal Fired 1 MWth Furnace, Energy & Fuels, 30 (11): 9836-9849, 2016.

  • Gronarz, T., Schulze, J., Laemmerhold, M., Graeser, P., Gorewoda, J., Kez, V., Habermehl, M., Schiemann, M., Ströhle, J., Epple, B., Scherer, V. and Kneer, R.Quantification of the influence of parameters determining radiative heat transfer in an oxy-fuel operated boiler, Fuel Processing Technology, 157: 76-89, 2017.

  • Kez, V., Liu, F., Consalvi, J-L., Ströhle, J. and Epple, B.A comprehensive evaluation of different radiation models in a gas turbine combustor under conditions of oxy-fuel combustion with dry recycle, Journal of Quantitative Spectroscopy and Radiative Transfer, 172: 121-133, 2016.

  • Kez, V., Consalvi, J-L., Liu, F., Ströhle, J. and Epple, B.Assessment of several gas radiation models for radiative heat transfer calculations in a three-dimensional oxy-fuel furnace under coal-fired conditions, International Journal of Thermal Sciences, 120: 289-302, 2017.

  • Frigge, L., Ströhle, J. and Epple, B.Release of sulfur and chlorine gas species during coal combustion and pyrolysis in an entrained flow reactor, Fuel, 201: 105-110, 2017.

  • Frigge, L., Ströhle, J. and Epple, B.Sulfur and Chlorine Gas Species Formation during Temperature-Programmed Coal Air- and Oxy-fuel Combustion, 13th International Conference on Energy for a Clean Environment, 2017.

  • von Bohnstein, M., Ströhle, J. and Epple, B.CFD Simulation of an Oxy-fuel Demonstration Power Plant with Application of a WSGG radiation model, Energy Procedia, 158: 1993-1998, 2019.

  • Kez, V., Consalvi, J-L., Liu, F., Gronarz, T., Ströhle, J., Kneer, R. and Epple, B.Investigation of gas and particle radiation modelling in wet oxy-coal combustion atmospheres, International Journal of Heat and Mass Transfer, 133: 1026-1040, 2019.

  • Frigge, L., Ströhle, J. and Epple, B.Modification of a model for sulfur release during coal pyrolysis to account for oxy-fuel conditions, 2nd International Workshop on Oxy-fuel Combustion, 2018.

  • Ströhle, J., Kez, V. and von Bohnstein, M.Evaluation of gas radiation models regarding their applicability to 3D simulations of oxyfuel combustion systems, 2nd International Workshop on Oxy-fuel Combustion, 2018.

  • Debiagi, P., Yildiz, C., Ströhle, J., Epple, B., Faravelli, T. and Hasse, C.Validation of a comprehensive kinetic mechanism for sulfur release during pyrolysis of solid fuels, 9th International Symposium on Coal Combustion, Qingdao, China, 2019.

  • Kez, V., Consalvi, J-L., Liu, F., Koch, M., von Bohnstein, M., Ströhle, J., Hatzfeld, O. and Kneer, R.Entwicklung eines Weighted-Sum-of-Gray-Gases Modells zur Berücksichtigung nicht-grauer Strahlungseigenschaften von Partikeln in Feststoffverbrennungen, 29. Deutscher Flammentag, Bochum, Germany, 2019.

  • von Bohnstein, M., Graeser, P., Schiemann, M., Ströhle, J. and Epple, B.3D CFD Simulation of a 250 MWel Oxy-fuel Boiler with Evaluation of Heat Radiation Calculation, 14th International Conference on Sustainable Development of Energy, Water and Environment Systems, 2019.

  • Ontyd, C., Pielsticker, S., Yildiz, C., Schiemann, M., Hatzfeld, O., Ströhle, J., Epple, B., Kneer, R. and Scherer, V.Experimental determination of walnut shell pyrolysis kinetics in N2 and CO2 via thermogravimetric analysis, fluidized bed and drop tube reactors, Fuel: 119313, 2020.

  • Schmidt, D., Yildiz, C., Ströhle, J. and Epple, B.Release of nitrogen, sulfur and chlorine species from coal in carbon dioxide atmosphere, Fuel, 284: 119279, 2021.

  • Debiagi, P., Yildiz, C., Richter, M., Ströhle, J., Epple, B., Faravelli, T. and Hasse, C.Experimental and modeling assessment of sulfur release from coal under low and high heating rates, Proceedings of the Combustion Institute, 2020.

  • Debiagi, P., Yildiz, C., Ströhle, J., Epple, B., Faravelli, T. and Hasse, C.Systematic evaluation and kinetic modeling of low heating rate sulfur release in pyrolysis and oxidation in various atmospheres, 3rd International Workshop on Oxy-Fuel Combustion, Montabaur, Germany, 2020.

  • Schmidt, D., Yildiz, C., Ströhle, J. and Epple, B.Experimental Assessment of the Release of Nitrogen, Sulfur and Chlorine Species During Pyrolysis of Coal and Biomass in CO2 Atmosphere, 3rd International Workshop on Oxy-Fuel Combustion, 2020.

  • von Bohnstein, M., Yildiz, C., Frigge, L., Ströhle, J. and Epple, B.Simulation study of the formation of corrosive gases in coal combustion in an entrained flow reactor, Energies, 13 (17): 4523, 2020.

  • Miranda, F., Coelho, P. J., Ströhle, J. and Janicka, J.Large-eddy simulation of a bluff-body stabilised nonpremixed flame with radiation heat transfer, Combustion Theory and Modelling, 133: 1-18, 2020.

  • von Bohnstein, M., Richter, M., Graeser, P., Schiemann, M., Ströhle, J. and Epple, B.3D CFD simulation of a 250 MWel oxy-fuel boiler with evaluation of heat radiation calculation, Renewable and Sustainable Energy Reviews, 137, 2021.

  • von Bohnstein, M., Graeser, P., Schiemann, M., Ströhle, J. and Epple, B.3D CFD Simulation of a 250 MWel Oxy-fuel Boiler with Evaluation of Heat Radiation Calculation, 29. Deutscher Flammentag, Bochum, Germany, 2019.

  • Frigge, L., Wütscher, A., Lotz, K., Yildiz, C., Ströhle, J., Muhler, M. and Epple, B.Sulfur and Chlorine Gas Species Formation during Temperature-Programmed Air and Oxy-fuel Combustion of Coal, Energies: (submitted), 2020.

  • Debiagi, P., Yildiz, C., Ströhle, J., Epple, B., Faravelli, T. and Hasse, C.Systematic evaluation and kinetic modeling of low heating rate sulfur release in various atmospheres, Fuel, 289: 119739, 2021.

Projects

Ruhr-Universität Bochum Lehrstuhl für Energieanlagen und Energieprozesstechnik

Contact

tarlinski@leat.ruhr-uni-bochum.de

Publications

  • Tarlinski, D., Freisewinkel, E., Eisenbach, T., Span, R., Schiemann, M. and Scherer, V.Char burnout of walnut shells using optical measurement techniques and first comparison of the experimental data to the CCK model, 46th International Technical Conference on Clean Energy, 2022.

  • Tarlinski, D., Geschwindner, C., Li, T., Böhm, B. and Schiemann, M.Optische Charakterisierung der volatilen Flamme in Partikelsträhnen in Abhängigkeit von der Partikelanzahldichte, 30. Deutscher Flammentag, 2021.

Projects

Technische Universität Darmstadt Simulation of reactive Thermo-Fluid Systems

Technische Universität Darmstadt Reaktive Strömungen und Messtechnik

Contact

wagner@rsm.tu-darmstadt.de

Publications

  • Blume, N. G., Ebert, V., Dreizler, A. and Wagner, S.Broadband fitting approach for the application of supercontinuum broadband laser absorption spectroscopy to combustion environments, Measurement Science and Technology, 27 (1): 015501, 2016.

  • Doost, S., Ries, F., Becker, L., Bürkle, S., Wagner, S., Ebert, V., Dreizler, A., di Mare, F., Sadiki, A. and Janicka, J.Residence time calculations for complex swirling flow in a combustion chamber using large-eddy simulations, Chemical Engineering Science, 156: 97-114, 2016.

  • Agizza, M. A., Bürkle, S., Becker, L., Greifenstein, M., Bagheri, G., Doost, S., Faravelli, T., Janicka, J., Wagner, S. and Dreizler, A.Reactor network modelling of a close to reality combustor using residence time measurements, 10th Mediterranean Combustion Symposium, 2017.

  • Bürkle, S., Becker, L., Agizza, M. A., Dreizler, A., Ebert, V. and Wagner, S.In-situ measurement of residence time distributions in a turbulent oxy-fuel gas-flame combustor, Experiments in Fluids, 58 (7): 647, 2017.

  • Bürkle, S., Becker, L., Agizza, M. A., Dreizler, A. and Wagner, S.Comparison of two measurement strategies to obtain the residence time distribution in combustion chambers using tunable diode laser absorption spectroscopy, Applied Optics, 58 (10): C36, 2019.

  • Bürkle, S., Becker, L., Dreizler, A. and Wagner, S.Experimental investigation of the flue gas thermochemical composition of an oxy-fuel swirl burner, Fuel, 231: 61-72, 2018.

  • Bürkle, S., Ebert, V., Rauen, D., Dreizler, A., Möller, G. H., Hees, J., Zabrodiec, D., Maßmeyer, A. and Wagner, S.Laserbasierte Messung von Temperatur und Spezieskonzentrationen bei der Verbrennung von torrefizierter Biomasse in einer 100 kWth-Staubfeuerungsversuchsanlage, 28. Deutscher Flammentag, 2017.

  • Hees, J., Bürkle, S., Becker, L., Zabrodiec, D., Wagner, S., Dreizler, A. and Kneer, R.A complementary approach for the experimental investigation of solid oxy-fuel combustion using optical diagnostics, 2nd International Workshop on Oxy-fuel Combustion, 2018.

  • Bürkle, S., Dreizler, A., Ebert, V. and Wagner, S.Experimental comparison of a 2D laminar diffusion flame under oxy-fuel and air atmosphere, Fuel, 212: 302-308, 2018.

  • Emmert, J., Blume, N. G., Dreizler, A. and Wagner, S.PolySpec: polynomial spectrum models for fast and light-weight spectroscopic evaluation, Applied Optics, 57 (34): 9907, 2018.

  • Emmert, J., Baroncelli, M., van der Kley, S., Pitsch, H. and Wagner, S.Axisymmetric Linear Hyperspectral Absorption Spectroscopy and Residuum-Based Parameter Selection on a Counter Flow Burner, Energies, 12 (14): 2786, 2019.

  • Grauer, S. J., Emmert, J., Sanders, S. T., Wagner, S. and Daun, K. J.Multiparameter gas sensing with linear hyperspectral absorption tomography, Measurement Science and Technology, 30 (10): 105401, 2019.

  • Emmert, J., Wagner, S. and Daun, K. J.Quantifying the spatial resolution of the maximum a posteriori estimate in linear, rank-deficient, Bayesian hard field tomography, Measurement Science and Technology, 2020.

  • Emmert, J., Grauer, S. J., Wagner, S. and Daun, K. J.Efficient Bayesian inference of absorbance spectra from transmitted intensity spectra, Optics Express, 27 (19): 26893-26909, 2019.

  • Emmert, J., Schneider, H., Meißner, C., Sidiropoulos, E., Hölzer, J. I., Seeger, T., Böhm, B., Dreizler, A. and Wagner, S.Characterization of temperature distributions in a swirled oxy-fuel coal combustor using tomographic absorption spectroscopy with fluctuation modelling, Applications in Energy and Combustion Science, 6: 100025, 2021.

Projects

Technische Universität Darmstadt Energiesysteme und Enegietechnik (EST)

Contact

coskun.yildiz@est.tu-darmstadt.de http://www.est.tu-darmstadt.de

Publications

  • Debiagi, P., Yildiz, C., Ströhle, J., Epple, B., Faravelli, T. and Hasse, C.Validation of a comprehensive kinetic mechanism for sulfur release during pyrolysis of solid fuels, 9th International Symposium on Coal Combustion, Qingdao, China, 2019.

  • Ontyd, C., Pielsticker, S., Yildiz, C., Schiemann, M., Hatzfeld, O., Ströhle, J., Epple, B., Kneer, R. and Scherer, V.Experimental determination of walnut shell pyrolysis kinetics in N2 and CO2 via thermogravimetric analysis, fluidized bed and drop tube reactors, Fuel: 119313, 2020.

  • Schmidt, D., Yildiz, C., Ströhle, J. and Epple, B.Release of nitrogen, sulfur and chlorine species from coal in carbon dioxide atmosphere, Fuel, 284: 119279, 2021.

  • Debiagi, P., Yildiz, C., Richter, M., Ströhle, J., Epple, B., Faravelli, T. and Hasse, C.Experimental and modeling assessment of sulfur release from coal under low and high heating rates, Proceedings of the Combustion Institute, 2020.

  • Debiagi, P., Yildiz, C., Ströhle, J., Epple, B., Faravelli, T. and Hasse, C.Systematic evaluation and kinetic modeling of low heating rate sulfur release in pyrolysis and oxidation in various atmospheres, 3rd International Workshop on Oxy-Fuel Combustion, Montabaur, Germany, 2020.

  • Schmidt, D., Yildiz, C., Ströhle, J. and Epple, B.Experimental Assessment of the Release of Nitrogen, Sulfur and Chlorine Species During Pyrolysis of Coal and Biomass in CO2 Atmosphere, 3rd International Workshop on Oxy-Fuel Combustion, 2020.

  • von Bohnstein, M., Yildiz, C., Frigge, L., Ströhle, J. and Epple, B.Simulation study of the formation of corrosive gases in coal combustion in an entrained flow reactor, Energies, 13 (17): 4523, 2020.

  • Frigge, L., Wütscher, A., Lotz, K., Yildiz, C., Ströhle, J., Muhler, M. and Epple, B.Sulfur and Chlorine Gas Species Formation during Temperature-Programmed Air and Oxy-fuel Combustion of Coal, Energies: (submitted), 2020.

  • Debiagi, P., Yildiz, C., Ströhle, J., Epple, B., Faravelli, T. and Hasse, C.Systematic evaluation and kinetic modeling of low heating rate sulfur release in various atmospheres, Fuel, 289: 119739, 2021.

Projects

Ruhr-Universität Bochum Computational Materials Chemistry

Contact

oezlem.yoender@rub.de

Publications

  • Influence of biomass torrefaction parameters on fast pyrolysis products under flame-equivalent conditions, Biomass and Bioenergy, 119: 392-410, 2018.

  • Density functional theory study of CO formation through reactions of polycyclic aromatic hydrocarbons with atomic oxygen (O(3P)), Fuel, 241: 851-860, 2019.

  • Computational Chemistry as a Tool for Predictive Combustion Modelling, 14th International Conference on Sustainable Development of Energy, Water and Environment Systems, Dubrovnik, Croatia, 2019.

  • Adsorption und Diffusion bei der Oxyfuel-Verbrennung von Festbrennstoffen: Vergleich von Experiment und MD-Simulation, 29. Deutscher Flammentag, 2019.

  • Adsorption and diffusion in oxyfuel combustion – Linking experiment and MD simulation through graphite structures as a first example, Diffusion Fundamentals 8, 2019.

  • Can small polyaromatics describe their larger counterparts for local reactions? A computational study on the H-abstraction reaction by an H-atom from polyaromatics, The Journal of Physical Chemistry A, 2020.

  • An automatized workflow from molecular dynamic simulation to quantum chemical methods to identify elementary reactions and compute reaction constants, Journal of Computational Chemistry, 2021.

Projects