TY - CHAP A1 - Seidel, Lars A1 - Perlman, Cathleen A1 - Fröjd, Karin A1 - Klaus, Anna-Katharina A1 - Laska, Timothy A1 - Jalving, J. A1 - Mauß, Fabian ED - Seidel, Lars T1 - CPU Efficient Modelling of Biomass Gasification Using a Stochastic Reactor Approach and Chemistry Guided Reduction T2 - 22nd European Biomass Conference and Exhibition KW - Biomass Y1 - 2014 ER - TY - GEN A1 - Seidel, Lars A1 - Perlman, Cathleen A1 - Fröjd, Karin A1 - Klaus, Anna-Katharina A1 - Laska, Timothy A1 - Jalving, T. A1 - Mauß, Fabian T1 - CPU Efficient Modelling of Biomass Gasification Using a Stochastic Reactor Approach and Chemistry Guided Reduction KW - CPU Efficient Modelling Y1 - 2014 UR - http://www.loge.se/pdf/poster_BiomassConferenceBCE2014.pdf N1 - 1st International Workshop on Computational Fluid Dynamics (CFD) and biomass thermochemical Conversion SP - 1 ER - TY - CHAP A1 - Rodriguez Henriquez, Jose Juan A1 - Seidel, Lars A1 - Mauß, Fabian T1 - Plug Flow Reactor Set-up evaluation with methane decomposition at mild conditions and overpressure T2 - Abstract book, 7th European Combustion Meeting (ECM), Budapest, Hungary, March 30-April 2 Y1 - 2015 SN - 978-963-12-1257-0 ER - TY - CHAP A1 - Matrisciano, Andrea A1 - Seidel, Lars A1 - Klauer, Christian A1 - Mauß, Fabian A1 - Lehtiniemi, Harry T1 - An a priori thermodynamic data analysis based on chemical lumping method for the reduction of large and multi-component chemical kinetic mechanisms T2 - 5th Annual Internation Workshop on Model Reduction in Reaction Flows (IWMRRF) Lübbenau, 28.06-01.07.2015, proceedings Y1 - 2015 ER - TY - CHAP A1 - Lehtiniemi, Harry A1 - Borg, Andreas A1 - Mauß, Fabian ED - Sens, Marc ED - Baar, Roland T1 - Modeling of Spray Combustion under Diesel Engine Conditions T2 - Proceedings of the 2nd Conference on Engine Processes, July 2–3, 2015, Berlin, Germany KW - Modeling of Spray Combustion Y1 - 2015 SN - 978-3-7983-2768-9 SP - 217 EP - 249 PB - Universitätsverlag der TU Berlin CY - Berlin ER - TY - CHAP A1 - Pasternak, Michal A1 - Mauß, Fabian A1 - Matrisciano, Andrea ED - Sens, Marc ED - Baar, Roland T1 - Diesel Engine Performance Mapping Using Stochastic Reactor Model T2 - Proceedings of the 2nd Conference on Engine Processes, July 2–3, 2015, Berlin, Germany KW - Diesel Engine Performance Mapping Y1 - 2015 SN - 978-3-7983-2768-9 SP - 217 EP - 232 PB - Tech. Univ., Universitätsverlag CY - Berlin ER - TY - GEN A1 - Matrisciano, Andrea A1 - Pasternak, Michal A1 - Wang, Xiaoxiao A1 - Antoshkiv, Oleksiy A1 - Mauß, Fabian A1 - Berg, Peter T1 - On the Performance of Biodiesel Blends – Experimental Data and Simulations Using a Stochastic Fuel Test Bench T2 - SAE Technical Papers Y1 - 2014 U6 - https://doi.org/10.4271/2014-01-1115 SN - 0148-7191 SN - 0096-5170 IS - 2014-01-1115 SP - 1 EP - 8 ER - TY - GEN A1 - Svensson, Erik A1 - Li, Changle A1 - Shamun, Sam A1 - Johansson, Bengt A1 - Tuner, Martin A1 - Perlman, Cathleen A1 - Lehtiniemi, Harry A1 - Mauß, Fabian T1 - Potential Levels of Soot, NOx , HC and CO for Methanol Combustion T2 - SAE Technical Papers N2 - Methanol is today considered a viable green fuel for combustion engines because of its low soot emissions and the possibility of it being produced in a CO2-neutral manner. Methanol as a fuel for combustion engines have attracted interest throughout history and much research was conducted during the oil crisis in the seventies. In the beginning of the eighties the oil prices began to decrease and interest in methanol declined. This paper presents the emission potential of methanol. T-Φ maps were constructed using a 0-D reactor with constant pressure, temperature and equivalence ratio to show the emission characteristics of methanol. These maps were compared with equivalent maps for diesel fuel. The maps were then complemented with engine simulations using a stochastic reactor model (SRM), which predicts end-gas emissions. The SRM was validated using experimental results from a truck engine running in Partially Premixed Combustion (PPC) mode at medium loads. The SRM was able to predict the combustion in terms of pressure trace and rate of heat release. The CO and NOx emissions were matched, however, the HC emissions were underestimated. Finally, the trajectories from the SRM simulations were superimposed on the T-Φ maps to investigate the in engine conditions. The T-Φ map analysis shows that emission of soot are non-existent, formaldehyde can be avoided and that emissions of methane are kept at, compared to diesel combustion, low levels, however CO and NOx levels are similar to diesel combustion. These results were confirmed for engine conditions by the SRM simulations and the engine experiments. KW - Potential Levels of Soot KW - Methanol Combustion Y1 - 2016 U6 - https://doi.org/10.4271/2016-01-0887 SN - 0148-7191 SN - 0096-5170 IS - 2016-01-0887 SP - 17 Seiten ER - TY - GEN A1 - Franken, Tim A1 - Mauß, Fabian T1 - Development of Methodology for Predictive Diesel Combustion Simulation Using 0D Stochastic Reactor Model T2 - SAE Technical Papers N2 - Stringent exhaust emission limits and new vehicle test cycles require sophisticated operating strategies for future diesel engines. Therefore, a methodology for predictive combustion simulation, focused on multiple injection operating points is proposed in this paper. The model is designated for engine performance map simulations, to improve prediction of NOx, CO and HC emissions.The combustion process is calculated using a zero dimensional direct injection stochastic reactor model based on a probability density function approach. Further, the formation of exhaust emissions is described using a detailed reaction mechanism for n-heptane, which involves 56 Species and 206 reactions. The model includes the interaction between turbulence and chemistry effects by using a variable mixing time profile. Thus, one is able to capture the effects of mixture inhomogeneities on NOx, CO and HC emission formation.The mixing time model is parameterized using transfer functions for engine operating parameters, e.g., injection mass, injection duration, air fuel ratio, start of injection and speed. These functions are calibrated for nine operating points using multi objective simulated annealing optimization combined with fast running metamodels that speed up the optimization process. The calibrated transfer functions are validated for nine additional operating points. The results for the calibration and validation points show a good match of the combustion heat release rate. Especially the main injection heat release rate is well predicted by the model. The NOx and CO emissions reflect the experimental trends and are in close range to the measurements. Finally, the model is tested for triple injection operating points. The results match the measurements, which show the applicability of the stochastic reactor model in conjunction with the mixing time transfer functions for engine performance map simulations. KW - Mathematical analysis KW - Diesel / Compression Ignition engines Y1 - 2016 U6 - https://doi.org/10.4271/2016-01-0566 SN - 0148-7191 SN - 0096-5170 IS - 2016-01-0566 SP - 14 Seiten ER - TY - GEN A1 - Lehtiniemi, Harry A1 - Borg, Anders A1 - Mauß, Fabian T1 - Combustion Modeling of Diesel Sprays T2 - SAE Technical Papers N2 - Several models for ignition, combustion and emission formation under diesel engine conditions for multi-dimensional computational fluid dynamics have been proposed in the past. It has been recognized that the use of a reasonably detailed chemistry model improves the combustion and emission prediction especially under low temperature and high exhaust gas recirculation conditions.The coupling of the combustion chemistry and the turbulent flow can be achieved with different assumptions. In this paper we investigate a selection of n-heptane spray experiments published by the Engine Combustion Network (ECN spray H) with three different combustion models: well-stirred reactor model, transient interactive flamelet model and progress variable based conditional moment closure. All models cater for the use of detailed chemistry, while the turbulence-chemistry interaction modeling and the ability to consider local effects differ.The same chemical mechanism is used by all combustion models, which allows a comparison of ignition delay, flame stabilization and flame lift-off length between the experiments and the results from simulations using the different combustion models. The investigated parameters influence the predictions of computational fluid dynamics simulations of diesel engines. This study indicates that the most reasonable behavior with respect to ignition, flame stabilization and flame structure is predicted by the progress variable based conditional moment closure model. KW - Modeling of Diesel Sprays Y1 - 2016 U6 - https://doi.org/10.4271/2016-01-0592 SN - 0148-7191 SN - 0096-5170 IS - 2016-01-0592 SP - 1 EP - 11 ER - TY - CHAP A1 - Mauß, Fabian A1 - Matrisciano, Andrea T1 - SRM in Engines: Performance and Emissions T2 - 3rd International Combustion Institute Summer School, June 19-23, Chania, Greece KW - Stochastic Reactor Models Y1 - 2016 UR - http://iciss2016.gr/site/wp-content/uploads/2016/05/ICISS_Mauss-Matrisciano_Abstract_Tutorial.pdf ER - TY - CHAP A1 - Leon de Syniawa, Larisa A1 - Nawdiyal, A. A1 - Seidel, Lars A1 - Mauß, Fabian T1 - Formation of C5 Species from iso-Butene T2 - Book of Abstracts, SMARTCATs 2nd General Meeting & Workshop on Smart Energy Carriers in Industry Lisbon, 14-16 November - 2016 KW - Formation of C5 Species Y1 - 2016 UR - http://media.wix.com/ugd/504c46_ad5e1606ba5c444aaa48e7a6f8a95288.pdf SP - 42 EP - 43 ER - TY - CHAP A1 - Malliotakis, Zisis A1 - Banyon, Colin A1 - Curran, Henry J. A1 - Founti, Maria A1 - Keramiotis, Christos A1 - Vourliotakis, George A1 - Koutmos, Panagiotis A1 - Paterakis, George A1 - Souflas, Konstantinos A1 - Mauß, Fabian A1 - Rodriguez Henriquez, Jose Juan A1 - Skevis, George T1 - A Comperative Study on the Oxidation of Gaseous and Liquid fuels in a Swirlstabilized Flame via Chemiluminescence Measurements T2 - Book of abtracts, COST SMARTCATs 2nd General Meeting, Lisbon, 14-16th November KW - Oxidation of Gaseous Y1 - 2016 UR - http://media.wix.com/ugd/504c46_d2c80c64c7024a84823473ecb521dc46.pdf SP - 84 EP - 85 PB - Cost, European Cooperation in Science and Technology ER - TY - CHAP A1 - Matrisciano, Andrea A1 - Borg, Anders A1 - Perlman, Cathleen A1 - Pasternak, Michal A1 - Seidel, Lars A1 - Netzer, Corinna A1 - Mauß, Fabian A1 - Lehtiniemi, Harry T1 - Simulation of DI-Diesel combustion using tabulated chemistry approach T2 - 1st Conference on Combustion Processes in Marine and Automotive Engines, 7th - 8th June 2016, Lund, Schweden KW - Simulation of DI-Diesel Y1 - 2016 UR - http://ecco-mate.eu/images/Training%20events/LUND/ECCO-MATE_C1_Proceedings.pdf SP - 44 EP - 47 ER - TY - CHAP A1 - Seidel, Lars A1 - Netzer, Corinna A1 - Hilbig, Martin A1 - Mauß, Fabian A1 - Klauer, Christian A1 - Pasternak, Michal A1 - Matrisciano, Andrea T1 - Systematic Reduction of Detailed Chemical Reaction Mechanisms for Engine Applications T2 - ASME 2016 Internal Combustion Engine Division Fall Technical Conference Greenville, South Carolina, USA, October 9–12, 2016 N2 - In this work we apply a sequence of concepts for mechanism reduction on one reaction mechanism including novel quality control. We introduce a moment based accuracy rating method for species profiles. The concept is used for a necessity based mechanism reduction utilizing 0D reactors. Thereafter a stochastic reactor model (SRM) for internal combustion engines is applied to control the quality of the reduced reaction mechanism during the expansion phase of the engine. This phase is sensitive on engine out emissions, and is often not considered in mechanism reduction work. The proposed process allows to compile highly reduced reaction schemes for CFD application for internal combustion engine simulations. It is demonstrated that the resulting reduced mechanisms predict combustion and emission formation in engines with accuracies comparable to the original detailed scheme. KW - Systematic Reduction KW - Chemical Reaction Mechanismus for Engine Applications Y1 - 2016 SN - 978-0-7918-5050-3 N1 - Paper No. ICEF2016-9304 PB - The American Society of Mechanical Engineers CY - New York, N.Y. ER - TY - CHAP A1 - Rodriguez Henriquez, Jose Juan A1 - Keramiotis, Christos A1 - Vourliotakis, George A1 - Mauß, Fabian A1 - Founti, Maria T1 - An Experimental Investigation of the Effect of Simulated EGR on Typical Gaseous Fuels Mixtures T2 - 1st Conference on Combustion Processes in Marine and Automotive Engines, 7th - 8th June 2016, Lund, Schweden KW - Typical Gaseous Fuels Mixtures KW - Experimental Investigation Y1 - 2016 UR - http://ecco-mate.eu/images/Training%20events/LUND/ECCO-MATE_C1_Proceedings.pdf SP - 18 EP - 21 ER - TY - CHAP A1 - Rodriguez Henriquez, Jose Juan A1 - Keramiotis, Christos A1 - Vourliotakis, George A1 - Mauß, Fabian A1 - Founti, Maria ED - Krstić, Snežana ED - Cunningham, Paul T1 - An emission characterization study on a model flame fuelled with natural gas and commercial grade propane T2 - Proceedings, The MCAA Poster Session – ESOF 2016, EuroScience Open Forum – Manchester, United Kingdom, 24-27 July 2016 Y1 - 2016 SN - 978-2-9601724-2-3 SP - 27 EP - 28 PB - MCAA CY - Brussels ER - TY - GEN A1 - Netzer, Corinna A1 - Seidel, Lars A1 - Pasternak, Michal A1 - Klauer, Christian A1 - Perlman, Cathleen A1 - Ravet, Frédéric A1 - Mauß, Fabian T1 - Engine Knock Prediction and Evaluation Based on Detonation Theory Using a Quasi-Dimensional Stochastic Reactor Mode T2 - SAE technical paper KW - Engine Knock Prediction and Evaluation Based Y1 - 2017 U6 - https://doi.org/10.4271/2017-01-0538 SN - 0096-5170 SN - 0148-7191 IS - 2017-01-0538 SP - 11 Seiten ER - TY - GEN A1 - Matrisciano, Andrea A1 - Franken, Tim A1 - Perlman, Cathleen A1 - Borg, Anders A1 - Lehtiniemi, Harry A1 - Mauß, Fabian T1 - Development of a Computationally Efficient Progress Variable Approach for a Direct Injection Stochastic Reactor Model T2 - SAE technical papers KW - Development of a Computationally Efficient Progress Y1 - 2017 U6 - https://doi.org/10.4271/2017-01-0512 SN - 0148-7191 SN - 0096-5170 IS - 2017-01-0512 SP - 18 Seiten ER - TY - GEN A1 - Aslanjan, Jana A1 - Klauer, Christian A1 - Perlman, Cathleen A1 - Günther, Vivien A1 - Mauß, Fabian T1 - Simulation of a Three-Way Catalyst Using Transient Single and Multi-Channel Models T2 - SAE technical paper KW - Simulation of a Three-Way Catalyst Using Y1 - 2017 U6 - https://doi.org/10.4271/2017-01-0966 SN - 0148-7191 SN - 0096-5170 IS - 2017-01-0966 ER - TY - GEN A1 - Franken, Tim A1 - Sommerhoff, Arnd A1 - Willems, Werner A1 - Matrisciano, Andrea A1 - Lehtiniemi, Harry A1 - Borg, Anders A1 - Netzer, Corinna A1 - Mauß, Fabian T1 - Advanced Predictive Diesel Combustion Simulation Using Turbulence Model and Stochastic Reactor Model T2 - SAE technical paper KW - Advanced Predictive Y1 - 2017 UR - http://papers.sae.org/2017-01-0516 U6 - https://doi.org/10.4271/2017-01-0516 SN - 0148-7191 SN - 0096-5170 N1 - WCX™ 17: SAE World Congress Experience ER - TY - CHAP A1 - Netzer, Corinna A1 - Seidel, Lars A1 - Pasternak, Michal A1 - Mauß, Fabian A1 - Lehtiniemi, Harry A1 - Perlman, Cathleen A1 - Ravet, Frédéric ED - Leipertz, Alfred ED - Fröba, Andreas Paul T1 - 3D CFD Engine Knock Predication and Evaluation Based on Detailed Chemistry and Detonation Theory T2 - Motorische Verbrennung : aktuelle Probleme und moderne Lösungsansätze, XIII. Tagung im Haus der Technik Ludwigsburg, 16.-17. März 2017 KW - 3D CFD Engine Knock Y1 - 2017 SN - 978-3-945806-08-1 PB - ESYTEC Energie- und Systemtechnik GmbH CY - Erlangen ER - TY - CHAP A1 - Netzer, Corinna A1 - Seidel, Lars A1 - Pasternak, Michal A1 - Klauer, Christian A1 - Perlman, Cathleen A1 - Ravet, Frédéric A1 - Mauß, Fabian T1 - Impact of Gasoline Octane Rating on Engine Knock using Detailed Chemistry and a Quasi-dimensional Stochastic Reaktior Model T2 - Digital Proceedings of the 8th European Combustion Meeting (ECM 2017), Dubrovnik, Croatia Y1 - 2017 UR - https://www.researchgate.net/publication/319059022 SP - 493 EP - 498 ER - TY - CHAP A1 - Netzer, Corinna A1 - Seidel, Lars A1 - Lehtiniemi, Harry A1 - Ravet, Frédéric A1 - Mauß, Fabian T1 - Efficient tracking of knock onset for a wide range of fuel surrogates T2 - International Multidimensional Engine Modeling User's Group Meeting at the SAE Congress KW - Efficient tracking of knock Y1 - 2017 UR - https://www.researchgate.net/publication/319137036 ER - TY - GEN A1 - Pasternak, Michal A1 - Mauß, Fabian A1 - Klauer, Christian A1 - Matrisciano, Andrea T1 - Diesel engine performance mapping using a parametrized mixing time model T2 - International Journal of Engine Research KW - Diesel engine performance Y1 - 2018 U6 - https://doi.org/10.1177/1468087417718115 SN - 2041-3149 SN - 1468-0874 VL - 19 IS - 2 SP - 202 EP - 213 ER - TY - CHAP A1 - Aslanjan, Jana A1 - Klauer, Christian A1 - Günther, Vivien A1 - Mauß, Fabian T1 - On the Influence of Inlet Gas Variations and Gas Phase Chemistry in a Three-Way Catalyst T2 - COMODIA - The Ninth International Conference on Modeling and Diagnostics for Advanced, July 25, 2017 - July 28, 2017 N2 - The conversion effects of a three-way catalyst are simulated in previous works using single and multiple representative channel approaches with detailed surface kinetic models. In addition, this article introduces global gas phase chemistry to the model. This allows reflecting ongoing reactions due to incomplete combustion products in low temperature regime. The 1D single-channel model representative for the catalyst is used here. Next to the comparison of the catalyst outlet emissions with and without gas phase chemistry, the transient temperature increase is simulated in order to model the catalysts light off temperature. Additionally, the transient inlet emissions are enhanced to show the influence of water and hydrogen on the modeling results. The heat transfer is modeled by wall heat losses to provide proper heat dissipation out of the catalyst. The modeling results show a good agreement to the experimental data with low computational cost. Y1 - 2017 U6 - https://doi.org/10.1299/jmsesdm.2017.9.A308 ER - TY - CHAP A1 - Fischer, Michael A1 - Günther, Michael A1 - Berger, Carsten A1 - Troeger, Ralf A1 - Pasternak, Michal A1 - Mauß, Fabian ED - Günther, Michael ED - Sens, Marc T1 - Suppressing Knocking by Using CleanEGR – Better Fuel Economy and Lower Raw Emissions Simultaneously T2 - Knocking in Gasoline Engines, 5th International Conference, December 12-13, 2017, Berlin, Germany KW - Suppressing Knocking Y1 - 2018 SN - 978-3-319-69760-4 U6 - https://doi.org/10.1007/978-3-319-69760-4_21 SP - 384 PB - Springer International Publishing CY - Cham ER - TY - CHAP A1 - Pasternak, Michal A1 - Netzer, Corinna A1 - Mauß, Fabian A1 - Fischer, Michael A1 - Sens, Marc A1 - Riess, Michael ED - Günther, Michael ED - Sens, Marc T1 - Simulation of the Effects of Spark Timing and External EGR on Gasoline Combustion Under Knock-Limited Operation at High Speed and Load T2 - Knocking in Gasoline Engines, 5th International Conference, December 12-13, 2017, Berlin, Germany Y1 - 2018 SN - 978-3-319-69760-4 U6 - https://doi.org/10.1007/978-3-319-69760-4_8 SP - 121 EP - 142 PB - Springer International Publishing CY - Cham ER - TY - CHAP A1 - Aslanjan, Jana A1 - Klauer, Christian A1 - Guenther, Vivien A1 - Mauß, Fabian T1 - Simulation of a three-way catalyst using a transient multi-channel model T2 - Digital Proceedings of the 8th European Combustion Meeting (ECM 2017), Dubrovnik, Croatia N2 - The conversion effects of a three-way catalyst (TWC) are simulated in previous works using single-channel approaches and detailed kinetic models. In addition to the single-channel model multiple representative catalyst channels are used in this work to take heat transfer between the channels into account. Furthermore, different inlet temperature distributions are considered and tested. An experimental four-stroke engine setup with emission outputs fed into a TWC is used to validate the model. Furthermore, the temperature progress is simulated to reflect the catalyst’s light off temperature. Heat conduction between the channels is modeled to provide proper heat dissipation during the catalytic process. A good agreement to the experimental data can be achieved with low computational cost. Y1 - 2017 UR - https://www.researchgate.net/profile/Jana_Aslanjan/publication/319136860_Simulation_of_a_three-way_catalyst_using_a_transient_multi-channel_model/links/59941a8caca272ec9087c553/Simulation-of-a-three-way-catalyst-using-a-transient-multi-channel-model.pdf SP - 570 EP - 574 CY - Dubrovnik ER - TY - GEN A1 - Aslanjan, Jana A1 - Klauer, Christian A1 - Günther, Vivien A1 - Mauß, Fabian T1 - Simulation of a three-way-catalyst using a transient multi-channel model N2 - The importance to reduce automotive exhaust gas emissions is constantly increasing. Not only the country-specific laws are getting more stringent also the global increase of automobiles is requiring a responsible handling of the issue. The three-way-catalytic converter (TWC) is one of the most common catalysts for the engine exhaust gas after treatment. The reduction of CO, NO and unburned hydrocarbons is fulfilled via oxidation of carbon monoxide and hydrocarbons, and reduction of nitrogen oxides. These conversion effects were simulated in previous works using single channel approaches [e.g. Fröjd/Mauss, SAE International 2011-01-1306] and detailed kinetic models [e.g Chatterjee et al., Faraday Discussions 119 (2001) 371-384 and Koop et al., Appl. Catal.B: Environmental 91 (2009), 47-58]. In this work multiple representative catalyst channels are used to take heat variations in between the catalyst into account. Each channel is split into a user given number of cells and each cell is treated like a perfectly stirred reactor (PSR). The simulation is validated against an experimental four-stroke engine setup with emission outputs fed into a TWC. Next to the emissions the transient temperature increase is simulated in order to model the catalyst light off temperature. The heat transfer is modelled by wall heat losses to provide a proper heat dissipation out of the catalyst. The simulation results show a good agreement to the experimental data with low computational cost. Y1 - 2017 UR - https://unitedscientificgroup.com/conferences/catalysis/2017/pdfs/CCE-2017_Proceedings.pdf N1 - CCE-2017 International Conference on Catalysis and Chemical Engineering Baltimore, USA, February 22 - 24, 2017 SP - S. 103 ER -