|Table of Contents|

Kinetic analysis of chemical effect of hydrogen addition on iso-octane flame


Research Field:
Publishing date:


Kinetic analysis of chemical effect of hydrogen addition on iso-octane flame
Luo MinyeLiu Dong
School of Energy and Powering Engineering,Nanjing University of Science and Technology, Nanjing 210094,China
iso-octane hydrogen chemical effects kinetic analysis
TK16; TK91
The chemical effects of hydrogen addition on laminar premixed iso-octane flames at the atmospheric pressure are studied by the detailed kinetic analysis.The chemical effects of hydrogen addition on the mole fractions of major species,intermediates and free radicals are distinguished clearly from the dilution effects and the thermal effects.The results show that the mole fractions of CO,CO2,CH2O species,H,O,OH radicals and the CH2O intermediates decrease with the H2 addition increasing.The chemical effects of hydrogen addition promote the productions of these species and radicals,and the dilution effects and the thermal effects of H2 on diminishing the concentration of these species and radicals are dominant.The chemical effects of H2 on C2H2 mole fractions vary non-linearly with the increasing of hydrogen addition.


[1] 胡洪波,翁春生.含铝汽油/空气多相爆轰机理仿真计算[J].南京理工大学学报,2014,38(4):445-450.
Hu Hongbo,Weng Chunsheng.Numerical simulation for mechanism of multi-phase detonation of aluminized gasoline and air[J].Journal of Nanjing University of Science and Technology,2014,38(4):445-450.
Zhu Shuguang,Yi Yongguang,Tan Junjie,et al.Combustion state online recognition and prediction of gas flame[J].Journal of Nanjing University of Science and Technology,2008,32(4):468-471.
[3]Dagaut P,Reuillon M,Cathonnet M.High pressure oxidation of liquid fuels from low to high temperature.1.n-heptane and iso-octane[J].Combustion Science and Technology,1993,95(1):233-260.
[4]Davidson D F,Oehlschlaeger M A,Hanson R K.Methyl concentration time-histories during iso-octane and n-heptane oxidation and pyrolysis[J].Proceedings of the Combustion Institute,2007,31(1):321-328.
Yao Chunde,Cheng Chuanhui,Liu Shiyu,et al.The concentration distribution characteristic of interme-diates from iso-octane/n-heptane blends laminar flame[J].Journal of Engineering Thermophysics,2009,30(5):879-882.
[6]Curran H J,Gaffuri P,Pitz W J,et al.A comprehensive modeling study of iso-octane oxidation[J].Combustion and Flame,2002,129(3):253-280.
[7]Mehl M,Curran H J,Pitz W J,et al.Chemical kinetic modeling of component mixtures relevant to gasoline[C]//4th European Combustion Meeting.Livermore,US:Lawrence Livemore National Laboratory,2009.
[8]Verhelst S,Wallner T.Hydrogen-fueled internal combustion engines[J].Progress in Energy and Combustion Science,2009,35(6):490-527.
[9]Liu Dong.Kinetic analysis of the chemical effects of hydrogen addition on dimethyl ether flames[J].International Journal of Hydrogen Energy,2014,39(24):13014-13019.
[10]Li Zisen,Han Wang,Liu Dong,et al.Laminar flame propagation and ignition properties of premixed iso-octane/air with hydrogen addition[J].Fuel,2015,158:443-450.
[11]Mandilas C,Ormsby M P,Sheppard C G W,et al.Effects of hydrogen addition on laminar and turbulent premixed methane and iso-octane-air flames[J].Proceedings of the Combustion Institute,2007,31(1):1443-1450.
[12]Chaos M,Kazakov A,Zhao Zhenwei,et al.A high-temperature chemical kinetic model for primary reference fuels[J].International Journal of Chemical Kinetics,2007,39(7):399-414.
[13]Li Juan,Zhao Zhenwei,Kazakov A,et al.An updated comprehensive kinetic model of hydrogen combustion[J].International Journal of Chemical Kinetics,2004,36(10):566-575.
[14]Zhao Zhenwei,Li Juan,Kazakov A,et al.Temperature-dependent feature sensitivity analysis for combustion modeling[J].International Journal of Chemical Kinetics,2005,37(5):282-295.
[15]Smith J M,Simmie J M,Curran H J.Autoignition of heptanes:Experiments and modeling[J].International Journal of Chemical Kinetics,2005,37(12):728-736.
[16]Huang Y,Sung C J,Eng J A.Laminar flame speeds of primary reference fuels and reformer gas mixtures[J].Combustion and Flame,2004,139(3):239-251.
[17]Held T J,Marchese A J,Dryer F L.A semi-empirical reaction mechanism for n-heptane oxidation and pyrolysis[J].Combustion Science and Technology,1997,123(1):107-146.
[18]Kee R J,Grcar J F,Smooke M D,et al.A Fortran program for modeling steady laminar one-dimensional premixed flames[R].Albuquerque,US:Sandia National Laboratories 1985,Modification of PREMIX Version 2.5,1991.
[19]Du D X,Axelbaum R L,Law C K.The influence of carbon dioxide and oxygen as additives on soot formation in diffusion flames[C]//Symposium(International)on Combustion.Pittsburgh,US:Elsevier,1991,23(1):1501-1507.
[20]Ying Yaoyao,Liu Dong.Detailed influences of chemical effects of hydrogen as fuel additive on methane flame[J].International Journal of Hydrogen Energy,2015,40(9):3777-3788.


Last Update: 2016-10-30