TY - JOUR AU - Su, Boyang AU - Papp, Máté AU - Zhang, Peng AU - Turányi, Tamás TI - Dependence of ignition delay time on its definition − A case study on methane ignition JF - COMBUSTION AND FLAME J2 - COMBUST FLAME VL - 262 PY - 2024 SP - 113364 SN - 0010-2180 DO - 10.1016/j.combustflame.2024.113364 UR - https://m2.mtmt.hu/api/publication/34630679 ID - 34630679 N1 - Institute of Chemistry, ELTE Eötvös Loránd University, Budapest, Hungary Center for Combustion Energy and Department of Energy and Power Engineering, Tsinghua University, Beijing, China Key Laboratory for Thermal Science and Power Engineering of MOE, International Joint Laboratory on Low Carbon Clean Energy Innovation, Tsinghua University, Beijing, China Export Date: 19 March 2024 CODEN: CBFMA Correspondence Address: Turányi, T.; Institute of Chemistry, Hungary; email: turanyi@chem.elte.hu LA - English DB - MTMT ER - TY - JOUR AU - Kubicsek, Ferenc AU - Kozák, Áron AU - Turányi, Tamás AU - Zsély, István Gyula AU - Papp, Máté AU - Abu Taleb Al-awamleh, Ahmad AU - Hegedűs, Ferenc TI - Ammonia production by microbubbles: a theoretical analysis of achievable energy intensity JF - ULTRASONICS SONOCHEMISTRY J2 - ULTRASON SONOCHEM PY - 2024 SN - 1350-4177 UR - https://m2.mtmt.hu/api/publication/34576564 ID - 34576564 LA - English DB - MTMT ER - TY - JOUR AU - Su, B. AU - Papp, Máté AU - Zsély, István Gyula AU - Nagy, Tibor AU - Zhang, P. AU - Turányi, Tamás TI - Comparison of the performance of ethylene combustion mechanisms JF - COMBUSTION AND FLAME J2 - COMBUST FLAME VL - 260 PY - 2024 SN - 0010-2180 DO - 10.1016/j.combustflame.2023.113201 UR - https://m2.mtmt.hu/api/publication/34470810 ID - 34470810 N1 - Institute of Chemistry, ELTE Eötvös Loránd University, Budapest, Hungary Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences, Budapest, Hungary Center for Combustion Energy and Department of Energy and Power Engineering, Tsinghua University, Beijing, China Export Date: 4 January 2024 CODEN: CBFMA Correspondence Address: Turányi, T.; Institute of Chemistry, Hungary; email: turanyi@chem.elte.hu LA - English DB - MTMT ER - TY - JOUR AU - Eckart, Sven AU - Zsély, István Gyula AU - Krause, Hartmut AU - Turányi, Tamás TI - Effect of the variation of oxygen concentration on the laminar burning velocities of hydrogen-enriched methane flames JF - INTERNATIONAL JOURNAL OF HYDROGEN ENERGY J2 - INT J HYDROGEN ENERG VL - 49 PY - 2024 SP - 533 EP - 546 PG - 14 SN - 0360-3199 DO - 10.1016/j.ijhydene.2023.08.217 UR - https://m2.mtmt.hu/api/publication/34137037 ID - 34137037 N1 - Institute of Thermal Engineering, TU Bergakademie Freiberg, Freiberg, Germany Institute of Chemistry, ELTE Eötvös Loránd University, Budapest, Hungary Export Date: 17 October 2023 CODEN: IJHED Correspondence Address: Eckart, S.; Institute of Thermal Engineering, Germany; email: sven.eckart@iwtt.tu-freiberg.de LA - English DB - MTMT ER - TY - CONF AU - Horváth, László AU - Shijun, Dong AU - Chiara, Saggese AU - Papp, Máté AU - Henry, J. Curran AU - William, J. Pitz AU - Turányi, Tamás AU - Nagy, Tibor TI - Mechanism reduction-assisted kinetic parameter optimization for the n-pentanol chemistry of the NUIGMech multifuel combustion mechanism T2 - Proceedings of the 11th European Combustion Meeting PY - 2023 PG - 6 UR - https://m2.mtmt.hu/api/publication/34718235 ID - 34718235 N1 - 33918743 másolata. AB - Among renewable combustible fuels, n-pentanol is considered as a potential candidate. In this work, we proposed and applied a novel mechanism reduction-assisted procedure to optimize rate parameters of the recently developed n-pentanol part of the detailed NUIGMech 1.1 multifuel combustion kinetic mechanism, which would be otherwise unfeasible. According to our proposed method, first a precise reduced mechanism is developed, which thus can be optimized effectively against experimental targets, then the tuned parameter values are inserted back into the detailed model, whose accuracy thereby can also be improved to a similar extent. LA - English DB - MTMT ER - TY - CONF AU - Kovács, Márton AU - Papp, Máté AU - Turányi, Tamás AU - Nagy, Tibor TI - A Novel Active Parameter Selection Strategy for the Efficient Optimization of Combustion Mechanisms T2 - Proceedings of the 11th European Combustion Meeting PY - 2023 PG - 6 UR - https://m2.mtmt.hu/api/publication/34718231 ID - 34718231 N1 - 33918743 másolata. AB - In previous mechanism optimization studies, the active parameters were selected based either on local sensitivity coefficients or on products of the local sensitivity coefficient and the uncertainty of the parameters. In this work, we propose a very efficient novel method, called PCALIN, which uses not only the local sensitivities, but also considers the uncertainty and the correlation of parameters, and furthermore the uncertainty and the weights of the experimental data. The method also identifies the relevant subset of the experimental data collection, thereby allows significant savings in computation time at mechanism optimization. LA - English DB - MTMT ER - TY - CONF AU - B., Su AU - Papp, Máté AU - Zsély, István Gyula AU - Turányi, Tamás TI - Comparison of the performance of ethylene combustion mechanisms based on large number of indirect measurements T2 - Proceedings of the 15th International Conference on Combustion Technologies for a Clean Environment PY - 2023 UR - https://m2.mtmt.hu/api/publication/34290313 ID - 34290313 AB - A large amount of experimental data covering wide ranges of conditions on ethylene combustion has been collected from the literature: ignition delay times measured in shock tubes (1160 data points in 114 data series) and rapid compression machines (83/5), concentration measurements carried out in jet-stirred reactors (1586/157) and flow reactors (649/59), and laminar burning velocities (882/59). The standard deviations of these measurements were estimated using both the published experimental uncertainty and the scatter error of the data series. 14 detailed reaction mechanisms were investigated using the collected experimental data. The results show significant differences between the performances of the various mechanisms. The four best-performing mechanisms are Aramco-2.0-2016, Aramco-3.0-2018, NUIGMech-1.1-2020, and Yang-2020 (in this decreasing order) based on all included experimental data. The best-performing model Aramco-2.0-2016 was further investigated by local sensitivity analysis. Several important reaction steps belonging to the hydrogen, syngas, and C1 systems were found to be important for all types of experiments, and furthermore reactions C2H3 + O2 = CH2CHO + O and C2H4 + OH = C2H3 + H2O which are specific for ethylene combustion. LA - English DB - MTMT ER - TY - CONF AU - M., Kovács AU - H., Schuszter AU - Papp, Máté AU - Zsély, István Gyula AU - Turányi, Tamás TI - Comparison of Recent Acetone Combustion Mechanisms Based on Large Amount of Experimental Data T2 - Proceedings of the 11th European Combustion Meeting PY - 2023 UR - https://m2.mtmt.hu/api/publication/34289748 ID - 34289748 AB - The performances of 18 recent detailed acetone combustion mechanisms were quantitatively assessed against 16578 experimental data points of 228 experimental data series. The Mezaine-2022 reaction mechanism had the best performance, but the three versions of AramcoMech, the Burke-2016 and the Gong-2015 mechanisms also reproduced the experiments well. Local sensitivity analysis showed that the most important reactions of acetone combustion are the unimolecular decomposition of acetone molecule, CH3COCH3 = CH3CO + CH3 and its H abstraction reactions with small radicals. Besides, some reactions of the methyl radical had significant sensitivity. LA - English DB - MTMT ER - TY - CONF AU - Szanthoffer, András György AU - M., Papp AU - L., Kawka AU - Zsély, István Gyula AU - Turányi, Tamás TI - Quantitative evaluation of the performances of detailed combustion mechanisms on neat NH3 and NH3/H2 combustion T2 - 2nd Symposium on Ammonia Energy PY - 2023 SP - 1 EP - 5 PG - 5 UR - https://m2.mtmt.hu/api/publication/34071098 ID - 34071098 LA - English DB - MTMT ER - TY - CHAP AU - Turányi, Tamás ED - Tingas, Efstathios-Al. TI - Reaction Kinetics of Hydrogen Combustion T2 - Hydrogen for Future Thermal Engines PB - Springer International Publishing CY - Cham SN - 9783031284120 T3 - Green Energy and Technology, ISSN 1865-3529 PY - 2023 SP - 65 EP - 92 PG - 28 DO - 10.1007/978-3-031-28412-0_2 UR - https://m2.mtmt.hu/api/publication/34071093 ID - 34071093 N1 - Export Date: 17 October 2023 Correspondence Address: Turányi, T.; Institute of Chemistry, Hungary; email: turanyi@chem.elte.hu LA - English DB - MTMT ER -