TY - GEN A1 - Richter, Jana A1 - Rachow, Fabian A1 - Israel, Johannes A1 - Roth, Norbert A1 - Charlafti, Evgenia A1 - Günther, Vivien A1 - Flege, Jan Ingo A1 - Mauß, Fabian T1 - Reaction Mechanism Development for Methane Steam Reforming on a Ni/Al2O3 Catalyst T2 - Catalysts N2 - In this work, a reliable kinetic reaction mechanism was revised to accurately reproduce the detailed reaction paths of steam reforming of methane over a Ni/Al2O3 catalyst. A steady-state fixed-bed reactor experiment and a 1D reactor catalyst model were utilized for this task. The distinctive feature of this experiment is the possibility to measure the axially resolved temperature profile of the catalyst bed, which makes the reaction kinetics inside the reactor visible. This allows for understanding the actual influence of the reaction kinetics on the system; while pure gas concentration measurements at the catalytic reactor outlet show near-equilibrium conditions, the inhere presented temperature profile shows that it is insufficient to base a reaction mechanism development on close equilibrium data. The new experimental data allow for achieving much higher quality in the modeling efforts. Additionally, by carefully controlling the available active surface via dilution in the experiment, it was possible to slow down the catalyst conversion rate, which helped during the adjustment of the reaction kinetics. To assess the accuracy of the revised mechanism, a monolith experiment from the literature was simulated. The results show that the fitted reaction mechanism was able to accurately predict the experimental outcomes for various inlet mass flows, temperatures, and steam-to-carbon ratios. KW - kinetic reaction mechanism development KW - 1D modeling KW - reaction rates KW - methane steam reforming KW - fixed-bed reactor experiments KW - nickel catalyst Y1 - 2023 U6 - https://doi.org/10.3390/catal13050884 SN - 2073-4344 VL - 13 IS - 5 ER - TY - GEN A1 - Franken, Tim A1 - Rachow, Fabian A1 - Charlafti, Evgenia A1 - Flege, Jan Ingo A1 - Jenssen, Martin A1 - Verma, Rakhi A1 - Günther, Vivien A1 - Mauss, Fabian T1 - Numerical investigation of oxy-methane combustion for stationary engines T2 - 40th International Symposium on Combustion N2 - This work presents a numerical investigation of turbulent oxyfuel combustion of methane in a gas engine with passive pre-chamber. The experimental data of a motored operating point at 1600 rpm and natural gas fired operating point at 2450 rpm, 6 bar IMEP and λ=1.5 are provided by TU Freiberg to validate the simulation model. The performance of the detailed chemistry model of Shrestha et al. predicting laminar burning velocity of premixed methane-oxygen flames is evaluated using the experiments of Mouze-Mornettas et al. The detailed chemistry model predicts the laminar flame speed within an accuracy range of ±10% for elevated pressure, temperature, and different equivalence ratios. For predicting the turbulent combustion in the gas engine, a three-dimensional (3D) Large Eddy Simulation (LES) with G Equation model and laminar flame speed look-up tables is used. The chemistry in the unburnt and burnt gas is solved using a constant volume detailed chemistry solver. The 3D LES model shows a good match of the motored and natural gas fired in-cylinder pressure profile. Subsequently the fuel is switched to methane and oxygen is used as oxidizer. The 3D LES results show an increase of maximum cylinder pressure up to 100 bar for λ=1.5, and the turbulent flame regime is shifted towards high Damköhler numbers compared to combustion with air. Diluting the cylinder gas with 50 mole-% CO2 or 65 mole-% H2O shows a significant reduction of peak cylinder pressure, and lower Damköhler and higher Karlovitz numbers compared to methane-oxygen combustion. KW - Oxyfuel KW - Simulation KW - Engines Y1 - 2024 ER - TY - GEN A1 - Verma, Rakhi A1 - Günther, Vivien A1 - Charlafti, Evgenia A1 - Rachow, Fabian A1 - Giri, Binod Raj A1 - Hemaizia, Abdelkader A1 - Thévenin, Dominique A1 - Flege, Jan Ingo A1 - Mauss, Fabian T1 - Development of detailed surface reaction mechanism for methanation process based on experiments T2 - Proceedings in applied mathematics and mechanics : PAMM N2 - The pressure to reduce greenhouse gas emissions is growing, which demands new and innovative technologies to produce mobile as well as stationary energy. The methanation offers a pathway to reduce greenhouse gas emissions by directly converting to . This also plays a crucial role in “power‐to‐gas” (P2G) technologies by providing an approach to store excess renewable energy in the form of methane in an existing natural gas infrastructure. However, methanation is a complex process due to its exothermic nature, interaction of the gas species with the catalyst, and possible catalyst degradation. Therefore, a deeper understanding is required for the methanation reaction, its different reaction pathways, and side reactions. In this work, we aim to understand the direct production of synthetic natural gas from and in a Sabatier process with the help of experiments over a Ni/ catalyst. A detailed surface reaction mechanism is developed to extend the study numerically by validating the simulation results with the experimental data. A one‐dimensional model, LOGEcat, based on a single‐channel catalyst model, is used for kinetic modeling. Experiments as well as simulations have been performed at various conditions, such as temperature variation and dilution to the inlet composition. We have successfully captured the experimental trends using the kinetic model developed for the conditions considered for the analysis. Y1 - 2026 U6 - https://doi.org/10.1002/pamm.70061 SN - 1617-7061 VL - 26 IS - 1 SP - 1 EP - 6 PB - Wiley CY - Weinheim ER - TY - GEN A1 - Mauß, Fabian A1 - Machal, C. A1 - Delfau, J.-L. A1 - Vovelle, C. A1 - Moréac, Gladys A1 - Mounam-Rousselle, G. T1 - Modelling of Aromatics and Soot Formation from Large Fuel Molecules T2 - Proceedings of the Combustion Institute Y1 - 2009 SN - 0082-0784 VL - 32 IS - 1 SP - 753 EP - 760 ER - TY - GEN A1 - Mauß, Fabian A1 - Ahmed, Syed Sayeed A1 - Zeuch, Thomas T1 - The Generation of a Compact n-Heptane / Toluene Reaction Mechanism Using the Chemistry Guided Reduction (CGR) Technique T2 - Zeitschrift für Physikalische Chemie Y1 - 2009 SN - 0942-9352 VL - 223 IS - 4-5 SP - 551 EP - 563 ER - TY - GEN A1 - Mauß, Fabian A1 - Hoffmeyer, Henrik A1 - Montefrancesco, Emanuela A1 - Beck, Linda A1 - Willand, Jürgen A1 - Ziebert, Florian T1 - CARE - Catalytic Reformated Exhaust gases in turbocharged DISI-Engines T2 - SAE International Journal of Fuels and Lubricants Y1 - 2009 SN - 1946-3952 VL - 2 IS - 1 SP - 139 EP - 148 ER - TY - GEN A1 - Mauß, Fabian A1 - Nakov, Galin A1 - Wenzel, Paul A1 - Steiner, Rüdiger A1 - Krüger, Christian A1 - Zhang, Yongzeh A1 - Rawat, Rajesh A1 - Borg, Andreas A1 - Perlman, Cathleen A1 - Fröjd, Karin A1 - Lehtiniemi, Harry T1 - Soot Simulation under Diesel Engine Conditions Using a Flamelet Approach T2 - SAE International Journal of Engines Y1 - 2010 SN - 1946-3936 VL - 2 IS - 2 SP - 89 EP - 104 ER - TY - GEN A1 - Mauß, Fabian A1 - Blurock, Edward S. A1 - Tuner, Martin T1 - Phase Optimized Skeletal Mechanisms for Engine Simulations T2 - Combustion Theory and Modelling Y1 - 2010 SN - 1364-7830 VL - 14 IS - 3 SP - 295 EP - 313 ER - TY - GEN A1 - Mauß, Fabian A1 - Løvås, Terese A1 - Malik, Nadeem T1 - Global reaction mechanism for ethylene flames with preferential diffusion Y1 - 2010 ER - TY - GEN A1 - Mauß, Fabian A1 - Malik, Nadeem A1 - Løvås, Terese T1 - The Effect of Preferential Diffusion on the Soot Initiation Process in Ethylene Diffusion Flames T2 - Flow Turbulence and Combustion Y1 - 2011 SN - 1386-6184 VL - 87 IS - 2-3 SP - 293 EP - 312 ER - TY - GEN A1 - Mauß, Fabian A1 - Fröjd, Karin T1 - A three-parameter transient 1D model for catalyst modeling T2 - SAE International Journal of Engines Y1 - 2011 SN - 1946-3936 VL - 4 IS - 1 SP - 1747 EP - 1763 ER - TY - GEN A1 - Oßwald, Patrick A1 - Kohse-Höinghaus, Katharina A1 - Struckmeier, Ulf A1 - Zeuch, Thomas A1 - Seidel, Lars A1 - Leon, Larisa A1 - Mauß, Fabian T1 - Combustion chemistry of the butane isomers in premixed low-pressure flames T2 - Zeitschrift für Physikalische Chemie Y1 - 2011 SN - 0942-9352 VL - 225 IS - 9-10 SP - 1029 EP - 1054 ER - TY - CHAP A1 - Mauß, Fabian A1 - Nilsson, D. T1 - Staged Combustion of Nitrogen doped Fuels Y1 - 1997 ER - TY - CHAP A1 - Mauß, Fabian A1 - Schmitt, Frank A1 - Schneider, Kai A1 - Bockhorn, Henning T1 - "NO formation during Ignition of One Dimensional Laminar Flamelets" Y1 - 1996 ER - TY - CHAP A1 - Mauß, Fabian A1 - Balthasar, M. T1 - "Simplification of a Detailed Kinetic Soot Model for Application in 3-D Programs" Y1 - 1997 ER - TY - CHAP A1 - Mauß, Fabian A1 - Balthasar, M. T1 - "Simplification Strategy for a Detailed Chemical Soot Model" Y1 - 1997 ER - TY - CHAP A1 - Mauß, Fabian A1 - Nilsson, Daniel A1 - Løvås, Terese A1 - Amnéus, Per T1 - "Reduction of Complex Fuel Chemistry for Simulation of Combustion in HCCI Engines" Y1 - 1999 ER - TY - CHAP A1 - Mauß, Fabian A1 - Kraft, M. A1 - Balthasar, M. T1 - Soot and NOx Formation in a Stationary Turbulent Combustor Y1 - 1999 ER - TY - CHAP A1 - Mauß, Fabian A1 - Johansson, B. T1 - "Homogeneous Charge Compression Ignition Engines: A Review on Experiments and Numerical Investigations" Y1 - 2001 ER - TY - CHAP A1 - Mauß, Fabian A1 - Løvås, Terese A1 - Soyhan, Hakan Serhad T1 - "Reduction of Complex Fuel Chemistry for Simulation of Combustion in a PSR-PFR reactor sequence" Y1 - 2001 ER - TY - CHAP A1 - Mauß, Fabian A1 - Blurock, Edward S. A1 - Lehtiniemi, Harry A1 - Gogan, Adina T1 - "Speed-up of a stochastic reactor model for a hydrogen fueled SI-engine by PRISM" Y1 - 2005 ER - TY - CHAP A1 - Mauß, Fabian A1 - Priesching, Peter A1 - Saric, Fikret A1 - Bauer, W. A1 - Schmid, M. A1 - Leipertz, Alfred T1 - "Partikelgrössenverteilungen in Dieselmotoren - Detaillierte kinetische Berechnungen und Experimentelle Untersuchungen" Y1 - 2005 ER - TY - CHAP A1 - Mauß, Fabian A1 - Netzell, Karl A1 - Machal, C. A1 - Moréac, Gladys T1 - "Modelling the Soot Particle Size Distribution Functions Using a Detailed Kinetic Soot Model and a Sectional Model" Y1 - 2009 ER - TY - JOUR A1 - Mauß, Fabian A1 - Soyhan, Hakan Serhad A1 - Sorusbay, Cem T1 - "Chemical Kinetic Modelling of Combustion in Internal Combustion Engines using Reduced Chemistry" Y1 - 2002 U6 - https://doi.org/10.1080/713712950 ER - TY - JOUR A1 - Mauß, Fabian A1 - Løvås, Terese A1 - Amnéus, Per A1 - Mastorakos, Epaminondas T1 - "Comparison of Automatic Reduction Procedures for Ignition Chemistry" Y1 - 2002 ER - TY - JOUR A1 - Mauß, Fabian A1 - Løvås, Terese A1 - Hasse, C. A1 - Peters, Norbert T1 - "Development of Adaptive Kinetics for Application in Combustion Systems" Y1 - 2002 ER - TY - JOUR A1 - Mauß, Fabian A1 - Maigaard, Peter A1 - Kraft, M. T1 - "Homogeneous Charge Compression Ignition Engine: A Simulation Study on the Effects of Inhomogenities" Y1 - 2003 ER - TY - GEN A1 - Mauß, Fabian A1 - Hiltner, Joel D. A1 - Agama, Rey A1 - Johansson, Borje T1 - "HCCI Operation with Natural Gas: Fuel Composition Implications" Y1 - 2003 ER - TY - GEN A1 - Mauß, Fabian A1 - Bhave, Amit A1 - Balthasar, M. A1 - Kraft, Markus T1 - "Analysis of a Natural Gas Fuelled HCCI Engine with Exhaust Gas Recirculation Using a Stochastic Reactor Model" Y1 - 2004 U6 - https://doi.org/10.1243/146808704772914273 ER - TY - JOUR A1 - Mauß, Fabian A1 - Hoyermann, Karlheinz A1 - Zeuch, Thomas T1 - "A Detailed Kinetic Mechanism for the Oxidation of Hydrocarbons and its Application to the Analysis of Benzene Formation in Fuel Rich Premixed Laminar Acetylene and Propene Flames" Y1 - 2004 ER - TY - GEN A1 - Mauß, Fabian A1 - Bhave, Amit A1 - Kraft, Markus A1 - Montorsi, Luca T1 - "Sources of CO emissions in an HCCI engine: A numerical analysis" Y1 - 2006 U6 - https://doi.org/10.1016/j.combustflame.2005.10.015 ER - TY - GEN A1 - Mauß, Fabian A1 - Su, Haiyun A1 - Vikhansky, Alexander A1 - Mosbach, Sebastian A1 - Kraft, Markus A1 - Bhave, Amit A1 - Kim, Kyoung-Oh A1 - Kobayashi, Tatsuo T1 - "A computational Study of an HCCI Engine With Direct Injection During Gas Exchange" Y1 - 2006 U6 - https://doi.org/10.1016/j.combustflame.2006.07.005 ER - TY - JOUR A1 - Mauß, Fabian A1 - Moréac, Gladys A1 - Blurock, Edward S. T1 - Automatic Generation of a Detailed Mechanism for the Oxidation of n-Decane Y1 - 2006 ER - TY - JOUR A1 - Mauß, Fabian A1 - Netzell, Karl A1 - Lehtiniemi, Harry T1 - "Aspects of Modeling Soot Formation in Turbulent Diffusion Flames" Y1 - 2006 ER - TY - JOUR A1 - Mauß, Fabian A1 - Lehtiniemi, Harry A1 - Balthasar, M. A1 - Magnusson, I. T1 - Modelling Diesel Spray Ignition Using Detailed Chemistry with a Flamelet Progress Variable Approach Y1 - 2006 ER - TY - JOUR A1 - Mauß, Fabian A1 - Netzell, Karl A1 - Lehtiniemi, Harry T1 - "Calculating the Soot Particle Size Distribution Function in Turbulent Diffusion Flames using a Sectional Method" Y1 - 2006 ER - TY - GEN A1 - Mauß, Fabian A1 - Mosbach, Sebastian A1 - Su, Haiyun A1 - Kraft, Markus A1 - Bhave, Amit A1 - Wang, Zhi A1 - Wang, J.-X. T1 - "Dual Injection Homogeneous Charge Compression Ignition Engine Simulation Using a Stochastic Reactor Model" Y1 - 2007 ER - TY - GEN A1 - Mauß, Fabian A1 - Ahmed, Syed Sayeed A1 - Moréac, Gladys A1 - Zeuch, Thomas T1 - "A Comprehensive and Compact n-Heptane Oxidation Model Derived Using Chemical Lumping" Y1 - 2007 ER - TY - GEN A1 - Zeuch, Thomas A1 - Moréac, Gladys A1 - Ahmed, Syed Sayeed A1 - Mauß, Fabian T1 - "A Comprehensive Skeleton Mechanism for the Oxidation of n-heptane Generated by Chemistry Guided Reduction" T2 - Combustion and Flame Y1 - 2008 U6 - https://doi.org/10.1016/j.combustflame.2008.05.007 SN - 0010-2180 VL - 155 IS - 4 SP - 651 EP - 674 ER - TY - CHAP A1 - Mauß, Fabian A1 - Breitbach, H. A1 - Göttgens, J. A1 - Pitsch, H. A1 - Peters, Norbert T1 - "Experimentelle und numerische Untersuchungen des Einflusses der Gasphase auf die Rußbildung" Y1 - 1993 ER - TY - CHAP A1 - Mauß, Fabian A1 - Peters, Norbert A1 - Rogg, Bernd A1 - Williams, F. A. ED - Peters, Norbert ED - Rogg, Bernd T1 - Reduced Kinetic Mechanisms for Premixed Hydrogen Flames T2 - Reduced Kinetic Mechanisms for Applications in Combustion Systems Y1 - 1993 SN - 978-3-540-56372-3 SP - 29 EP - 43 PB - Springer CY - Berlin [u.a.] ER - TY - CHAP A1 - Mauß, Fabian A1 - Trilken, B. A1 - Breitbach, H. A1 - Peters, Norbert T1 - "Soot Formation in Partially Premixed Diffusion Flames at Atmospheric Pressure" Y1 - 1994 ER - TY - CHAP A1 - Mauß, Fabian A1 - Schäfer, T. A1 - Bockhorn, Henning T1 - "Bildung und Oxidation von Ruß in vorgemischten Gegenstromflammen" Y1 - 1995 ER - TY - GEN A1 - Mauß, Fabian A1 - Keller, D. A1 - Peters, Norbert T1 - A Lagrangian Simulation of Flamelet Extinction and Re-Ignition in Turbulent Jet Diffusion Flames T2 - Symposium (International) on Combustion Y1 - 1990 SN - 0082-0784 VL - 23 IS - 1 SP - 693 EP - 698 ER - TY - GEN A1 - Mauß, Fabian A1 - Seshadri, K. A1 - Peters, Norbert A1 - Warnatz, J. T1 - A Flamelet Calculation of Benzene Formation in Coflowing Laminar Diffusion Flames T2 - Symposium (International) on Combustion Y1 - 1990 SN - 0082-0784 VL - 23 IS - 1 SP - 559 EP - 566 ER - TY - GEN A1 - Mauß, Fabian A1 - Balakrishnan, G. A1 - Treviño, C. T1 - The Asymptotic Structure of Hydrogen-Air Diffusion Flames T2 - Combustion and flame Y1 - 1992 SN - 0010-2180 VL - 91 IS - 3/4 SP - 246 EP - 256 ER - TY - GEN A1 - Mauß, Fabian A1 - Göttgens, J. A1 - Peters, Norbert T1 - Analytic Approximation of Burning Velocities and Flame Thickness of Lean Hydrogen, Methane, Ethylene, Acetylene and Propane Flames T2 - Symposium (International) on Combustion Y1 - 1992 SN - 0082-0784 VL - 24 IS - 1 SP - 129 EP - 135 ER - TY - GEN A1 - Mauß, Fabian A1 - Schäfer, T. A1 - Bockhorn, Henning T1 - Inception and Growth of Soot Particles in Dependence on the Surrounding Gas Phase T2 - Combustion and flame Y1 - 1994 SN - 0010-2180 VL - 99 IS - 3/4 SP - 697 EP - 705 ER - TY - GEN A1 - Mauß, Fabian A1 - Bockhorn, Henning T1 - Numerical Calculation of Soot Formation in Premixed Hydrocarbon Flames T2 - ACS Division Proceedings Online Y1 - 1994 VL - 39 IS - 1 SP - S. 172 ER - TY - GEN A1 - Mauß, Fabian A1 - Schlegel, A. A1 - Buser, S. A1 - Benz, P. A1 - Bockhorn, Henning T1 - NOx Emissions of Catalytic Stabilized Combustion to Lean Premixed Combustion T2 - Symposium (International) on Combustion Y1 - 1994 SN - 0082-0784 VL - 25 IS - 1 SP - 1019 EP - 1026 ER -