people

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Publications

• Pielsticker, S., Möller, G. H., Gövert, B. M., Kreitzberg, T., Hatzfeld, O., Yönder, O., Angenent, V., Hättig, C., Schmid, R. and Kneer, R.Influence of biomass torrefaction parameters on fast pyrolysis products under flame-equivalent conditions, Biomass and Bioenergy, 119: 392-410, 2018.

• Yönder, O., Hättig, C., Angenent, V., Schmid, R., Leonhard, K. and Schmalz, F.Computational Chemistry as a Tool for Predictive Combustion Modelling, 14th International Conference on Sustainable Development of Energy, Water and Environment Systems, 2019.

• Wedler, C., Angenent, V., Yönder, O., Hättig, C., Schmid, R., Span, R. and Richter, M.Adsorption und Diffusion bei der Oxyfuel-Verbrennung von Festbrennstoffen: Vergleich von Experiment und MD-Simulation, 29. Deutscher Flammentag, 2019.

• Wedler, C., Angenent, V., Yönder, O., Hättig, C., Schmid, R., Span, R. and Richter, M.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

• A7

Contact

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-textgreekw turbulence model, 3rd International Workshop on Oxy-Fuel Combustion, 2020.

Projects

• C1

Contact

Publications

• Köser, J., Becker, L. G., 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, 2015. doi 

• Köser, J., Becker, L. G., 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, 2016.

• Becker, L. G., 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, 2016.

• 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): 105201-1-105201-15, 2015.

• Köser, J., Knappstein, R., Goßmann, A.-K., Becker, L. G., 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 International Pittsburgh Coal Conference, Pittsburgh, Pennsylvania, 2015.

• Becker, L. G., Langenthal, T. v., 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. doi 

• 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, 2018. doi 

• 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, 2018. doi 

• 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.

• Becker, L.G., 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.

• Li, T., Pareja, J., Becker, L., Heddrich, W., Dreizler, A. and Böhm, B.Quasi 4D laser diagnostics using an acousto optic defector scanning system, Applied Physics B, 123: 78-85, 2017.

• Li, T., Pareja, J., Becker, L. G., 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. G., 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. G., 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.

• Geschwindner, C., Goedderz, D., Li, T., Köser, J., Fasel, C., Riedel, R., Altstädt, V., Bethke, C., Puchtler, F., Breu, J., Döring, M., Dreizler, A. and Böhm, B.Investigation of flame retarded polypropylene by high-speed planar laser-induced fluorescence of OH radicals combined with a thermal decomposition analysis, Experiments in Fluids, 61 (2): 2625, 2020.

Projects

• B4
• B7

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Contact

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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, OEffect of CO2 on chars produced from coal and biomass at high heating rates, XXXIX Meeting of the Italian Section of the Combustion Institute, I4.1-I4.6, Naples, 2016.

• Cerciello, F., Cortese, L., Heuer, S., Schiemann, M., Scherer, V. and Senneca, O.Effect of CO2 on coal pyrolysis at high and low heating rates on char reactivity, XXXIX Meeting of the Italian Section of the Combustion Institute, I3.1-I3.6, Naples, 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, 2018. doi 

• 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 (March): 419-425, 2018. doi 

• Senneca, O., Cerciello, F., Heuer, S. and Ammendola, P.Slow pyrolysis of walnut shells in nitrogen and carbon dioxide, Tenth 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, Tenth 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., Richter, M., 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, 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.

Projects

• A5

Contact

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: (accepted), 2020.

Projects

• B1

Contact

Publications

• 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.

• Debiagi, P. E. A., 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. E. A., 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. E. A., Coskun, Y., 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, 2019.

• Wen, Xu, Debiagi, P. E. A., 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. E. A., 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. E. A., 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. E. A., 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. E. A., 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. E. A., 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, 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. E. A., 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. E. A., 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. E. A., 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. E. A., 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. E. A., 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. E. A. 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. E. A., 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. E. A., 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.

Projects

• A8

Contact

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, 2016.

• Doost, A. S., Ries, F., Becker, L. G., 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., di Mare, F., Nishad, K., Keller, P., Buhl, S., Hartmann, F. and Hasse, C.Internal Combustion Engine, ERCOFTAC Best Practice Guidelines: Computational Fluid Dynamics of Turbulent Combustion, 203-310, 2016.

• Sadiki, A., Agrebi, S., Chrigui, M., Doost, A.S., Knappstein, R., Mare, F. Di, 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. doi 

• Miranda, F. C., Mare, F. di, 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, 9: 269-282, 2017.

• Knappstein, R., Künne, G., Becker, L. G., 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.

• Doost, S., Ries, F., Becker, L. G., 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.

• 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. C., 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., 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, 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. C., 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-Atmosph"aren auf Basis tabellierten Chemie, 29. Deutscher Flammentag, 2019.

• Nicolai, H., Künne, G., Knappstein, R., Schneider, H., Becker, L. G., 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.

Projects

• C2

Contact

Publications

• Köser, J., Becker, L. G., 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, 2015. doi 

• Wagner, S., Blume, N. G., Ebert, V. and Dreizler, A.Broadband fitting approach for the application of supercontinuum broadband laser absorption spectroscopy to combustion environments, Measurement Science and Technology, 27 (1): 015501, 2015.

• 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, A. S., Ries, F., Becker, L. G., 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. G., 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, 2016.

• Becker, L. G., 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, 2016.

• 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): 105201-1-105201-15, 2015.

• Köser, J., Knappstein, R., Goßmann, A.-K., Becker, L. G., 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 International Pittsburgh Coal Conference, Pittsburgh, Pennsylvania, 2015.

• Knappstein, R., Ketelheun, A., Künne, G., Köser, J., Dreizler, A., Sadiki, A. and Janicka, J.A consistent approach for coupling the devolatilization of coal particles with tabulated chemistry, 15th International Conference on Numerical Combustion, Avignon, Frankreich, 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, 0 (0): 1-25, 0. doi 

• Becker, L. G., Langenthal, T. v., 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. doi 

• 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, 2018. doi 

• 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, 2018. doi 

• 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.

• Becker, L.G., 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.

• Li, T., Pareja, J., Becker, L., Heddrich, W., Dreizler, A. and Böhm, B.Quasi 4D laser diagnostics using an acousto optic defector scanning system, Applied Physics B, 123: 78-85, 2017.

• Agizza, M. A., Bürkle, S., Becker, L. G., 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. G., 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. G., 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. G., 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. G., 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. G., 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. G., 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.

• Doost, S., Ries, F., Becker, L. G., 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.

• 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. G., 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. G., 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, 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.

• Geschwindner, C., Goedderz, D., Li, T., Köser, J., Fasel, C., Riedel, R., Altstädt, V., Bethke, C., Puchtler, F., Breu, J., Döring, M., Dreizler, A. and Böhm, B.Investigation of flame retarded polypropylene by high-speed planar laser-induced fluorescence of OH radicals combined with a thermal decomposition analysis, Experiments in Fluids, 61 (2): 2625, 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. G., 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. C., 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. E. A., 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.

Projects

• B4
• B5
• C1

Contact

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.

Projects

• A5

Contact

Contact

Publications

• 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.

Projects

• B5

Contact

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, 2016.

• 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. doi 

• 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.

• 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. E. A., Coskun, Y., 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, 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. E. A., 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. E. A., 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, 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.

Projects

• A3(F)

Contact

Projects

• B1

Contact

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.

Projects

• B3

Contact

Contact

Publications

• Fröhlich, K., Schneiders, L., Meinke, M. H. and Schröder, W.Assessment of Non-Spherical Point-Particle Models in LES using Direct Particle-Fluid Simulations, Fluid Dynamics Conference, T0002, American Institute of Aeronautics and Astronautics, Reston, Virginia, 2018.

• Fröhlich, K., Schneiders, L., Meinke, M. H. 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., 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, 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.Direct particle-fluid simulation of Kolmogorov-length-scale size ellipsoidal particles in isotropic decaying turbulence, 3rd International Workshop on Oxy-Fuel Combustion, 2020.

• Fröhlich, K., Schneiders, L., Meinke, M. and Schröder, W.Numerical analysis of fully resolved ellipsoidal particle dynamics in isotropic decaying turbulence, 17th European Turbulence Conference, 2019.

• Fröhlich, K., Schneiders, L., Meinke, M. and Schröder, W.Simulation of Particulate Flows, High Performance Computing in Science & Engineering -- 22nd Results and Review Workshop of the HLRS, 2019.

• Schneiders, L., Fröhlich, K., Meinke, M. and Schröder, W.Direct particle-fluid simulations on dynamic meshes, 72nd Annual Meeting of the APS Division of Fluid Dynamics, 2019.

• 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.

Projects

• B2

Contact

Publications

• Geschwindner, C., Goedderz, D., Li, T., Köser, J., Fasel, C., Riedel, R., Altstädt, V., Bethke, C., Puchtler, F., Breu, J., Döring, M., Dreizler, A. and Böhm, B.Investigation of flame retarded polypropylene by high-speed planar laser-induced fluorescence of OH radicals combined with a thermal decomposition analysis, Experiments in Fluids, 61 (2): 2625, 2020.

• 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.

Projects

• B7

Contact

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 Pittsburgh Coal Conference, 06/10/2014 – 09/10/2014, Pittsburgh, PA, USA], 2014.

• Hees, J., Zabrodiec, D., Maßmeyer, A., Gronarz, T., Gövert, B., Höfler, M., Ohliger, A., Habermehl, M., Hatzfeld, O. and Kneer, R.Experimental Investigation and Comparison of Pulverized Coal Combustion in CO2/O2- and N2/O2-Atmospheres, [SPEIC: Towards Sustainable Combustion, 19/11/2014 – 21/11/2014, Lisbon, Portugal], 2014.

• 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, 31/05/2015 – 04/06/2015, Clearwater, FL, USA], 2015.

• 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, 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, Kapstadt, Südafrika, 2016.

• Pielsticker, S., Möller, G. H., Gövert, B. M., Kreitzberg, T., Hatzfeld, O., Yönder, O., Angenent, V., Hättig, C., Schmid, R. and Kneer, R.Influence of biomass torrefaction parameters on fast pyrolysis products under flame-equivalent conditions, Biomass and Bioenergy, 119: 392-410, 2018.

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

• Gövert, B. M., 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. M. 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. M., 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. M., 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. M., 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. M., 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.

Projects

• A1

Contact

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.

Projects

• B8

Contact

Publications

• 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.

• Debiagi, P. E. A., 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. E. A., 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. E. A., Coskun, Y., 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, 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. E. A., 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. E. A., 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. E. A., 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. E. A., 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, 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. E. A., 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. E. A., 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. E. A., 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. E. A., 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. E. A. 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. G., 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. E. A., 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. E. A., 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. E. A., 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.

• Sadiki, A., di Mare, F., Nishad, K., Keller, P., Buhl, S., Hartmann, F. and Hasse, C.Internal Combustion Engine, ERCOFTAC Best Practice Guidelines: Computational Fluid Dynamics of Turbulent Combustion, 203-310, 2016.

• Nicolai, H., Wen, Xu, Miranda, F. C., 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. E. A., 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. E. A., 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.

Projects

• A8

Contact

Publications

• Pielsticker, S., Möller, G. H., Gövert, B. M., Kreitzberg, T., Hatzfeld, O., Yönder, O., Angenent, V., Hättig, C., Schmid, R. and Kneer, R.Influence of biomass torrefaction parameters on fast pyrolysis products under flame-equivalent conditions, Biomass and Bioenergy, 119: 392-410, 2018.

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

• Yönder, O., Hättig, C., Angenent, V., Schmid, R., Leonhard, K. and Schmalz, F.Computational Chemistry as a Tool for Predictive Combustion Modelling, 14th International Conference on Sustainable Development of Energy, Water and Environment Systems, 2019.

• Wedler, C., Angenent, V., Yönder, O., Hättig, C., Schmid, R., Span, R. and Richter, M.Adsorption und Diffusion bei der Oxyfuel-Verbrennung von Festbrennstoffen: Vergleich von Experiment und MD-Simulation, 29. Deutscher Flammentag, 2019.

• Wedler, C., Angenent, V., Yönder, O., Hättig, C., Schmid, R., Span, R. and Richter, M.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.

Projects

• A7

Contact

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, A. S., Ries, F., Becker, L. G., 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. G., 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, 2016.

• Köser, J., Knappstein, R., Goßmann, A.-K., Becker, L. G., 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 International Pittsburgh Coal Conference, Pittsburgh, Pennsylvania, 2015.

• Knappstein, R., Ketelheun, A., Künne, G., Köser, J., Dreizler, A., Sadiki, A. and Janicka, J.A consistent approach for coupling the devolatilization of coal particles with tabulated chemistry, 15th International Conference on Numerical Combustion, Avignon, Frankreich, 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, 2016.

• 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, 581-590, Clausthal-Zellerfeld, 2015.

• Sadiki, A., Agrebi, S., Chrigui, M., Doost, A.S., Knappstein, R., Mare, F. Di, 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. doi 

• Miranda, F. C., Mare, F. di, 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, 9: 269-282, 2017.

• Agizza, M. A., Bürkle, S., Becker, L. G., 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. G., 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.

• Doost, S., Ries, F., Becker, L. G., 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.

• 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. C., 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. E. A., 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.

• 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, 2019.

• Debiagi, P. E. A., 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. C., Fran&ccedil, a, 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. C., 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-Atmosph"aren auf Basis tabellierten Chemie, 29. Deutscher Flammentag, 2019.

• Nicolai, H., Künne, G., Knappstein, R., Schneider, H., Becker, L. G., 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. C., 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. E. A., 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.

Projects

• B6(F)
• C2

Contact

Projects

• Z

Contact

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 Pittsburgh Coal Conference, 06/10/2014 – 09/10/2014, Pittsburgh, PA, USA], 2014.

• Hees, J., Zabrodiec, D., Maßmeyer, A., Gronarz, T., Gövert, B., Höfler, M., Ohliger, A., Habermehl, M., Hatzfeld, O. and Kneer, R.Experimental Investigation and Comparison of Pulverized Coal Combustion in CO2/O2- and N2/O2-Atmospheres, [SPEIC: Towards Sustainable Combustion, 19/11/2014 – 21/11/2014, Lisbon, Portugal], 2014.

• 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 ; 07/04/2015 - 10/04/2015 ; Porto, Portugal], 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, 31/05/2015 – 04/06/2015, Clearwater, FL, USA], 2015.

• 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, 31/05/2015 – 04/06/2015, Clearwater, FL, USA], 2015.

• 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, 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, Kapstadt, Südafrika, 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. G., 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, 2016.

• Zabrodiec, D., Hees, J., Maßmeyer, A., Lehn, F. v., Hatzfeld, O., Habermehl, M. and Kneer, R.Experimental Investigation of Pulverized Coal Flames in CO2/O2- and N2/O2-Atmospheres: Comparison of solid particle radiative characteristics, Fuel, 2016.

• Habermehl, M., Hees, J., Zabrodiec, D. and Kneer, R.Charakterisierung ähnlicher, aerodynamisch bestimmter Flammenzustände eines Kohlenstaub-Drallbrenners im Luft- und Oxyfuel-Betrieb, Clausthal-Zellerfeld, 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, 2016.

• Johansson, R., Gronarz, T. and Kneer, R.Influence of Index of Refraction and Particle Size Distribution on Radiative Heat Transfer in a PCC Furnace, ASME Journal of Heat Transfer, 16 (144): 1-21, 2016.

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

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

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

• Gronarz, T., Hatzfeld, O., Habermehl, M. and Kneer, R.Investigation of modelling approaches for scattering and absorption properties of particles in pulverized coal combustion, Industrial Combustion, 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, 0 (0): 1-25, 0. doi 

• Sadiki, A., Agrebi, S., Chrigui, M., Doost, A.S., Knappstein, R., Mare, F. Di, 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. doi 

• Becker, L. G., Langenthal, T. v., 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. doi 

• Becker, L.G., 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.

• Pielsticker, S., Möller, G. H., Gövert, B. M., Kreitzberg, T., Hatzfeld, O., Yönder, O., Angenent, V., Hättig, C., Schmid, R. and Kneer, R.Influence of biomass torrefaction parameters on fast pyrolysis products under flame-equivalent conditions, Biomass and Bioenergy, 119: 392-410, 2018.

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

• Gövert, B. M., 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, Innovative Solutions for Energy Transitions: Proceedings of the 10th International Conference on Applied Energy (ICAE2018), 2025-2030, Elsevier, Amsterdam, 2019.

• Kreitzberg, T., Haustein, H. D., Gövert, B. M. 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. M., 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. M., 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. M., 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. G., 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., 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, 2016.

• 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 torreed biomasses in comparison to solid fossil fuels, 42nd International Technical Conference on Clean Energy, 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 kW Pulverized Coal Flames, Joint Meeting the German and Italian Sections of the Combustion Institute, 2018.

• 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., Hees, J., Möller, G. H., Hatzfeld, O. and Kneer, R.Pulverized coal swirl flames in oxy-fuel conditions: Effects of oxidizer O 2 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 of particle radiation interaction in the numerical simulation of pulverized coal combustion, 10th European Conference on Industrial Furnaces and Boilers : INFUB 10, 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.

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

• Schiemann, M., Gronarz, T., Graeser, P., Gorewoda, J., Scherer, V. and Kneer, R.A correlation between char emissivity and temperature, 2nd International Workshop on Oxy-fuel Combustion, 2018.

• 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. E. A., 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. G., 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 Weigthed-Sum-of-Gray-Gases Modells zur Berücksichtigung nicht-grauer Strahlungseigenschaften von Partikeln in Feststoffverbrennungen, 29. Deutscher Flammentag, 2019.

• Becker, L. G., 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. E. A., 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. M., 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-textgreekw 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, 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. C., 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: 110493, 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.

Projects

• A1
• B4
• C1
• C4
• MGK
• Z

Contact

Publications

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

Projects

• C4

Contact

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, 2018. doi 

• 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, 2018. doi 

• 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 defector scanning system, Applied Physics B, 123: 78-85, 2017.

• Li, T., Pareja, J., Becker, L. G., 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.

• Geschwindner, C., Goedderz, D., Li, T., Köser, J., Fasel, C., Riedel, R., Altstädt, V., Bethke, C., Puchtler, F., Breu, J., Döring, M., Dreizler, A. and Böhm, B.Investigation of flame retarded polypropylene by high-speed planar laser-induced fluorescence of OH radicals combined with a thermal decomposition analysis, Experiments in Fluids, 61 (2): 2625, 2020.

• 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.

Projects

• B7

Contact

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 Pittsburgh Coal Conference, 06/10/2014 – 09/10/2014, Pittsburgh, PA, USA], 2014.

• Hees, J., Zabrodiec, D., Maßmeyer, A., Gronarz, T., Gövert, B., Höfler, M., Ohliger, A., Habermehl, M., Hatzfeld, O. and Kneer, R.Experimental Investigation and Comparison of Pulverized Coal Combustion in CO2/O2- and N2/O2-Atmospheres, [SPEIC: Towards Sustainable Combustion, 19/11/2014 – 21/11/2014, 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., Lehn, F. v., Hatzfeld, O., Habermehl, M. and Kneer, R.Experimental Investigation of Pulverized Coal Flames in CO2/O2- and N2/O2-Atmospheres: Comparison of solid particle radiative characteristics, Fuel, 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, 0 (0): 1-25, 0. doi 

• Sadiki, A., Agrebi, S., Chrigui, M., Doost, A.S., Knappstein, R., Mare, F. Di, 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. doi 

• 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., 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, 2016.

• 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 torreed biomasses in comparison to solid fossil fuels, 42nd International Technical Conference on Clean Energy, 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., 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., 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-textgreekw 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, 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. C., 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: 110493, 2020.

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

Projects

• C1

Contact

Publications

• Gadeschi, G. B., 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): 1-12, 2015.

• L. Schneiders, C. G. M. 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, Proc. Appl. Math. Mech., 15 (1): 495-496, 2015.

• Schneiders, L., Günther, C., Grimmen, J., Meinke, M. and Schröder, W.Sharp resolution of complex moving geometries using a multi-cut-cell viscous flow solver, 22nd AIAA Computational Fluid Dynamics Conference, Dallas, Texas, 2015.

• Fröhlich, K., Schneiders, L., Meinke, M. H. and Schröder, W.Assessment of Non-Spherical Point-Particle Models in LES using Direct Particle-Fluid Simulations, Fluid Dynamics Conference, T0002, American Institute of Aeronautics and Astronautics, Reston, Virginia, 2018.

• Fröhlich, K., Schneiders, L., Meinke, M. H. 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. H. 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, 2019.

• Schneiders, L., Meinke, M. H. 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.

• 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.Direct particle-fluid simulation of Kolmogorov-length-scale size ellipsoidal particles in isotropic decaying turbulence, 3rd International Workshop on Oxy-Fuel Combustion, 2020.

• Fröhlich, K., Schneiders, L., Meinke, M. and Schröder, W.Numerical analysis of fully resolved ellipsoidal particle dynamics in isotropic decaying turbulence, 17th European Turbulence Conference, 2019.

• Fröhlich, K., Schneiders, L., Meinke, M. and Schröder, W.Simulation of Particulate Flows, High Performance Computing in Science & Engineering -- 22nd Results and Review Workshop of the HLRS, 2019.

• Schneiders, L., Fröhlich, K., Meinke, M. and Schröder, W.Direct particle-fluid simulations on dynamic meshes, 72nd Annual Meeting of the APS Division of Fluid Dynamics, 2019.

• 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.

• 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.

Projects

• B2

Contact

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, [48th Jahrestreffen Deutscher Katalytiker, 11/03/2015 – 13/03/2015, Weimar, Germany], 2015.

• Wütscher, A., Düdder, H. and Muhler, M.Synthetic Lignite-like Fuel for Oxy-fuel Combustion, [48th Jahrestreffen Deutscher Katalytiker, 11/03/2015 – 13/03/2015, Weimar, Germany], 2015.

• Düdder, H., Wütscher, A. and Muhler, M.Experiments and kinetic modelling of char combustion, [European Symposium on Chemical Reaction Engineering, 27/10/2015 – 30/10/2015, Fürstenfeldbruck, Germany], 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 

• 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, 2016.

• Wütscher, A., Wedler, C., Seibel, C., Hiltrop, D., Fieback, T.M., 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. doi 

• Senneca, O., Vorobiev, N., Wütscher, A., Cerciello, F., Heuer, S., Wedler, C., Richter, M., 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, 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, 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, Fuel, 238: 173-185, 2019.

• Düdder, H., Wütscher, A. and Muhler, M.Kinetic analysis of temperature-programmed and isothermal hydrochar oxidation experiments, 48. Jahrestreffen Deutscher Katalytiker, 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, Innovative Solutions for Energy Transitions: Proceedings of the 10th International Conference on Applied Energy (ICAE2018), 694-699, Elsevier, Amsterdam, 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. E. A., 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.

Projects

• A5

Contact

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. E. A., 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.

• 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, 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. G., 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. C., 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-Atmosph"aren auf Basis tabellierten Chemie, 29. Deutscher Flammentag, 2019.

• Debiagi, P. E. A., 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. E. A., 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.

Projects

• C2

Contact

Publications

• Özer, B., Debiagi, P. E. A., 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.

Projects

• C1

Contact

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. E. A., 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.

Projects

• A5

Contact

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, 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, Kapstadt, Südafrika, 2016.

• Becker, L. G., Langenthal, T. v., 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. doi 

• Becker, L.G., 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.

• Pielsticker, S., Möller, G. H., Gövert, B. M., Kreitzberg, T., Hatzfeld, O., Yönder, O., Angenent, V., Hättig, C., Schmid, R. and Kneer, R.Influence of biomass torrefaction parameters on fast pyrolysis products under flame-equivalent conditions, Biomass and Bioenergy, 119: 392-410, 2018.

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

• Gövert, B. M., 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, Innovative Solutions for Energy Transitions: Proceedings of the 10th International Conference on Applied Energy (ICAE2018), 2025-2030, Elsevier, Amsterdam, 2019.

• 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. M., 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. M., 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. M., 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. E. A., 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. G., 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. G., 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. E. A., 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. M., 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.

Projects

• A1

Contact

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., 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.

• 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, 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, 2016.

• Baroncelli, M., Kruse, S. and Pitsch, H.Experimental and numerical investigation of extinction strain rates of coal devolatilization products under oxy-fuel conditions, Budapest, Ungarn, 2015.

• Farazi, S., Sayadi, T. and Pitsch, H.Numerical analysis of the drag force acting on the reactive single char particle under oxy-fuel condition, 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, April 18th-21st, 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, February 10th-11th 2016, Montabaur, Germany.

• 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, 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 conditions, 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.

• Pitsch, H. and Attili, A.Data analysis for direct numerical simulations of turbulent combustion: From equation-based analysis to machine learning, Springer, Cham, Switzerland, 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: (accepted), 2020.

Projects

• B1
• B3

Contact

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.

Projects

• C5

Contact

Publications

• Debiagi, P. E. A., 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

• C3(F)

Contact

Publications

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

• 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 conditions, 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.

Projects

• B8

Contact

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, Review of Scientific Instruments, 85 (7): 075114, 2014. doi 

• 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 (May): 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, 2015.

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

• Vorobiev, N., Schiemann, M., Wirtz, S. and Scherer, V.Pyrometrische Bestimmung von Koksabbrandkinetiken unter Oxyfuel-Bedingungen, 27th Deutscher Flammentag, Clausthal-Zellerfeld, 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 31/05/2015 – 04/06/2015, Clearwater, FL, USA], 2015.

• Köser, J., Becker, L. G., 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, 2015. doi 

• 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. M.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, 2016.

• 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, Niederlande, 2016.

• Gorewoda, J. and Scherer, V.Normal radiative emittance of coal ash sulfates in the context of oxyfuel combustion, Energy & Fuel, 2017.

• Gorewoda, J. and Scherer, V.Key parameters for the radiative emittance of ashes of solid fuels, 11TH European Conference on Industrial Furnaces and Boilers, Albufeira, Portugal, 18th-21st April, 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, Clearwater Clean Energy Conference, The 42nd International Technical Conference On Clean Energy, Clearwater, Florida, USA, 2017.

• Cerciello, F, Cortese, L, Heuer, S, Scherer, V, Schiemann, M and Senneca, OEffect of CO2 on chars produced from coal and biomass at high heating rates, XXXIX Meeting of the Italian Section of the Combustion Institute, I4.1-I4.6, Naples, 2016.

• Cerciello, F., Cortese, L., Heuer, S., Schiemann, M., Scherer, V. and Senneca, O.Effect of CO2 on coal pyrolysis at high and low heating rates on char reactivity, XXXIX Meeting of the Italian Section of the Combustion Institute, I3.1-I3.6, Naples, 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, April 18th-21st, Dubrovnik, Croatia. 2017.

• Becker, A., Schiemann, M., Scherer, V., Shaddix, C., 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. doi 

• Senneca, O., Vorobiev, N., Wütscher, A., Cerciello, F., Heuer, S., Wedler, C., Richter, M., 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, 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, 2018.

• Schiemann, M., Wedler, C., Vorobiev, N., Richter, M., Span, R. and Scherer, V.Effektive Diffusionskoeffizienten in Kokspartikeln aus Oxyfuel-Feuerungen, 28th Deutscher Flammentag, Darmstadt, 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, Tenth 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, Sheffield, UK, 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., Scherer, V. and Kneer, R.A correlation between char emissivity and temperature, 2nd International Workshop on Oxy-fuel Combustion, 2018.

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

Projects

• A2
• C6(F)

Contact

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, Review of Scientific Instruments, 85 (7): 075114, 2014. doi 

• 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 (May): 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, 2015.

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

• Vorobiev, N., Schiemann, M., Wirtz, S. and Scherer, V.Pyrometrische Bestimmung von Koksabbrandkinetiken unter Oxyfuel-Bedingungen, 27th Deutscher Flammentag, Clausthal-Zellerfeld, 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 31/05/2015 – 04/06/2015, Clearwater, FL, 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 31/05/2015 – 04/06/2015, Clearwater, FL, USA], 2015.

• Köser, J., Becker, L. G., 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, 2015. doi 

• 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 

• Schiemann, M. and .Graeser,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. M.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, 2016.

• Graeser, P. and Schiemann, M.Corrigendum to “Emissivity of burning bituminous coal char particles – Burnout effects” [Fuel 196 (2017) 336–343], Fuel, 234: 225-226, 2018. doi 

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

• Cerciello, F, Cortese, L, Heuer, S, Scherer, V, Schiemann, M and Senneca, OEffect of CO2 on chars produced from coal and biomass at high heating rates, XXXIX Meeting of the Italian Section of the Combustion Institute, I4.1-I4.6, Naples, 2016.

• Cerciello, F., Cortese, L., Heuer, S., Schiemann, M., Scherer, V. and Senneca, O.Effect of CO2 on coal pyrolysis at high and low heating rates on char reactivity, XXXIX Meeting of the Italian Section of the Combustion Institute, I3.1-I3.6, Naples, 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, April 18th-21st, Dubrovnik, Croatia. 2017.

• Becker, A., Schiemann, M., Scherer, V., Shaddix, C., 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. doi 

• Senneca, O., Vorobiev, N., Wütscher, A., Cerciello, F., Heuer, S., Wedler, C., Richter, M., 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, 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, 2018.

• Schiemann, M., Wedler, C., Vorobiev, N., Richter, M., Span, R. and Scherer, V.Effektive Diffusionskoeffizienten in Kokspartikeln aus Oxyfuel-Feuerungen, 28th Deutscher Flammentag, Darmstadt, 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, Tenth 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, 2018. doi 

• Graeser, P. and Schiemann, M.Einfluss der Partikelgrösse auf den Partikelemissionsgrad eines Steinkohlekokses, 28. Deutscher Flammentag, 2017.

• Graeser, P. and Schiemann, M.Corrigendum to “Emissivity of burning bituminous coal char particles – Burnout effects” [Fuel 196 (2017) 336–343], Fuel, 234: 225-226, 2018. doi 

• Vorobiev, N., Schiemann, M. and Scherer, V.Optical investigation of char combustion kinetics under oxy-fuel conditions, Sheffield, UK, 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, 2018. doi 

• 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., Scherer, V. and Kneer, R.A correlation between char emissivity and temperature, 2nd International Workshop on Oxy-fuel Combustion, 2018.

• 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. E. A., 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. E. A., 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. E. A., 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. E. A., 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.

Projects

• C5
• B7

Contact

Publications

• Pielsticker, S., Möller, G. H., Gövert, B. M., Kreitzberg, T., Hatzfeld, O., Yönder, O., Angenent, V., Hättig, C., Schmid, R. and Kneer, R.Influence of biomass torrefaction parameters on fast pyrolysis products under flame-equivalent conditions, Biomass and Bioenergy, 119: 392-410, 2018.

• Yönder, O., Hättig, C., Angenent, V., Schmid, R., Leonhard, K. and Schmalz, F.Computational Chemistry as a Tool for Predictive Combustion Modelling, 14th International Conference on Sustainable Development of Energy, Water and Environment Systems, 2019.

• Wedler, C., Angenent, V., Yönder, O., Hättig, C., Schmid, R., Span, R. and Richter, M.Adsorption und Diffusion bei der Oxyfuel-Verbrennung von Festbrennstoffen: Vergleich von Experiment und MD-Simulation, 29. Deutscher Flammentag, 2019.

• Wedler, C., Angenent, V., Yönder, O., Hättig, C., Schmid, R., Span, R. and Richter, M.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: (accepted), 2020.

Projects

• A7

Contact

Publications

• Schneider, H., Becker, L. G., 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. G., 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.

Projects

• B4

Contact

Publications

• Gadeschi, G. B., 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): 1-12, 2015.

• L. Schneiders, C. G. M. 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, Proc. Appl. Math. Mech., 15 (1): 495-496, 2015.

• Schneiders, L., Günther, C., Grimmen, J., Meinke, M. and Schröder, W.Sharp resolution of complex moving geometries using a multi-cut-cell viscous flow solver, 22nd AIAA Computational Fluid Dynamics Conference, Dallas, Texas, 2015.

• Fröhlich, K., Schneiders, L., Meinke, M. H. and Schröder, W.Assessment of Non-Spherical Point-Particle Models in LES using Direct Particle-Fluid Simulations, Fluid Dynamics Conference, T0002, American Institute of Aeronautics and Astronautics, Reston, Virginia, 2018.

• Fröhlich, K., Schneiders, L., Meinke, M. H. 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. H. 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, 2019.

• Schneiders, L., Meinke, M. H. 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.

• 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.Direct particle-fluid simulation of Kolmogorov-length-scale size ellipsoidal particles in isotropic decaying turbulence, 3rd International Workshop on Oxy-Fuel Combustion, 2020.

• Fröhlich, K., Schneiders, L., Meinke, M. and Schröder, W.Numerical analysis of fully resolved ellipsoidal particle dynamics in isotropic decaying turbulence, 17th European Turbulence Conference, 2019.

• Fröhlich, K., Schneiders, L., Meinke, M. and Schröder, W.Simulation of Particulate Flows, High Performance Computing in Science & Engineering -- 22nd Results and Review Workshop of the HLRS, 2019.

• Schneiders, L., Fröhlich, K., Meinke, M. and Schröder, W.Direct particle-fluid simulations on dynamic meshes, 72nd Annual Meeting of the APS Division of Fluid Dynamics, 2019.

• 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.

• 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.

Projects

• B2

Contact

Projects

• Z

Contact

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, OEffect of CO2 on chars produced from coal and biomass at high heating rates, XXXIX Meeting of the Italian Section of the Combustion Institute, I4.1-I4.6, Naples, 2016.

• Cerciello, F., Cortese, L., Heuer, S., Schiemann, M., Scherer, V. and Senneca, O.Effect of CO2 on coal pyrolysis at high and low heating rates on char reactivity, XXXIX Meeting of the Italian Section of the Combustion Institute, I3.1-I3.6, Naples, 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 (March): 419-425, 2018. doi 

• Senneca, O., Cerciello, F., Heuer, S. and Ammendola, P.Slow pyrolysis of walnut shells in nitrogen and carbon dioxide, Tenth 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, Tenth 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., Richter, M., 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, 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.

Projects

• A1
• A2
• A5
• A6
• A7

Contact

Contact

Publications

• Fieback, T. and Span, R.High Temperature Sorption Measurements for Determining Surface Effects of Solid Fuels, [The 6th International Conference on Applied Energy, 30/05/2014 – 02/06/2014, Taipei City, Taiwan], 2014.

• 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. M.Sorption measurements for determining surface effects and structure of solid fuels, Fuel Processing Technology, 153: 81-86, 2016.

• Wedler, C., Fieback, T. M. and Span, R.Sorptionskinetische Untersuchungen von Oxyfuel-Gaskomponenten an Festbrennstoffen, ProcessNET/VDI. Thermodynamik-Kolloquium, Kaiserslautern, 2016.

• Wütscher, A., Wedler, C., Seibel, C., Hiltrop, D., Fieback, T.M., 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. doi 

• Senneca, O., Vorobiev, N., Wütscher, A., Cerciello, F., Heuer, S., Wedler, C., Richter, M., 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, 2018.

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

• Wedler, C., Arami-Niya, A., Xiao, G., Span, R., May, E. F. and Richter, M.Gas Diffusion and Sorption in Carbon Conversion.

• 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. M. and Span, R.Oxyfuel Combustion -- Experimental Investigation of Sorption Effects on Coal Char, Energy Procedia, 105: 1847-1851, 2017.

• Wedler, C., Seibel, C., Span, R. and Fieback, T. M.Prediction of real surface concentrations of oxyfuel gases on different coal chars using IAST, 1st International Workshop on Oxy-Fuel Combustion, 2016.

• 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.

• Wedler, C., Angenent, V., Yönder, O., Hättig, C., Schmid, R., Span, R. and Richter, M.Adsorption und Diffusion bei der Oxyfuel-Verbrennung von Festbrennstoffen: Vergleich von Experiment und MD-Simulation, 29. Deutscher Flammentag, 2019.

• Wedler, C., Angenent, V., Yönder, O., Hättig, C., Schmid, R., Span, R. and Richter, M.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.

Projects

• A6

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Contact

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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, 2016.

• 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. doi 

• 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.

• 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. E. A., Coskun, Y., 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, 2019.

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

Projects

• C3(F)

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Projects

• A2
• B7

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Publications

• Wagner, S., Blume, N. G., Ebert, V. and Dreizler, A.Broadband fitting approach for the application of supercontinuum broadband laser absorption spectroscopy to combustion environments, Measurement Science and Technology, 27 (1): 015501, 2015.

• Doost, A. S., Ries, F., Becker, L. G., 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. G., 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. G., 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. G., 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. G., 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. G., 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.

• Doost, S., Ries, F., Becker, L. G., 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.

• 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.

Projects

• B5

Contact

Publications

• Debiagi, P. E. A., Coskun, Y., 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, 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. E. A., 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. E. A., 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, 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.

Projects

• A3(F)
• C7

Contact

Publications

• Pielsticker, S., Möller, G. H., Gövert, B. M., Kreitzberg, T., Hatzfeld, O., Yönder, O., Angenent, V., Hättig, C., Schmid, R. and Kneer, R.Influence of biomass torrefaction parameters on fast pyrolysis products under flame-equivalent conditions, Biomass and Bioenergy, 119: 392-410, 2018.

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

• Yönder, O., Hättig, C., Angenent, V., Schmid, R., Leonhard, K. and Schmalz, F.Computational Chemistry as a Tool for Predictive Combustion Modelling, 14th International Conference on Sustainable Development of Energy, Water and Environment Systems, 2019.

• Wedler, C., Angenent, V., Yönder, O., Hättig, C., Schmid, R., Span, R. and Richter, M.Adsorption und Diffusion bei der Oxyfuel-Verbrennung von Festbrennstoffen: Vergleich von Experiment und MD-Simulation, 29. Deutscher Flammentag, 2019.

• Wedler, C., Angenent, V., Yönder, O., Hättig, C., Schmid, R., Span, R. and Richter, M.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.

Projects

• A7