Energy transfer in hydrogen/air and methane/air mixtures

被引:0
|
作者
Aretz, W
Metz, SW
Wilhelmi, H
机构
[1] Inst. F. Industrieofenbau W., Rheinisch-Westfalische TH Aachen, D-52074 Aachen
关键词
D O I
10.1002/ceat.270190406
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
This article presents gas kinetic calculation methods for the energy transport in hydrogen/ air and methane/air mixtures. The total molecular heat conductivity as well as its various shares are calculated and discussed for a temperature range of 400 to 3500 K and for a pressure of 10(5) Pa. The variation of the air/fuel ratio under the conditions of chemical equilibrium is also investigated. As opposed to our previous article, an extension of the Chapman-Enskog method which goes beyond the classical Ist approximation for elastic collisions is applied for the evaluation of suitable calculation methods. This is carried out following the method for strong relaxing thermal nonequilibrium according to Brun. The equations applied in this work are simplified formulations for the proximity to equilibrium. The method for the evaluation of the parameters of the inelastic collision and some chosen results are presented. A discussion of the various shares of the molecular heat conductivity emphasizes the considerable influence of the diffusion and the thermal diffusion processes in fuel/air mixtures compared to the Fourier heat conductivity.
引用
收藏
页码:324 / 336
页数:13
相关论文
共 50 条
  • [31] Continuous spin detonation of methane/hydrogen-air mixtures with additional injection of air to combustion products
    Bykovskii, F. A.
    Zhdan, S. A.
    Vedernikov, E. F.
    [J]. 3RD ALL-RUSSIAN SCIENTIFIC CONFERENCE THERMOPHYSICS AND PHYSICAL HYDRODYNAMICS WITH THE SCHOOL FOR YOUNG SCIENTISTS, 2018, 1128
  • [32] Spark-induced breakdown spectroscopy of methane/air and hydrogen-enriched methane/air mixtures at engine relevant conditions
    Kammermann, T.
    Kreutner, W.
    Trottmann, M.
    Merotto, L.
    Soltic, P.
    Bleiner, D.
    [J]. SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY, 2018, 148 : 152 - 164
  • [33] DDT in methane-air mixtures
    Kuznetsov, M
    Ciccarelli, G
    Dorofeev, S
    Alekseev, V
    Yankin, Y
    Kim, TH
    [J]. SHOCK WAVES, 2002, 12 (03) : 215 - 220
  • [34] THE BURNING VELOCITY OF HYDROGEN AIR MIXTURES AND MIXTURES OF SOME HYDROCARBONS WITH AIR
    SCHOLTE, TG
    VAAGS, PB
    [J]. COMBUSTION AND FLAME, 1959, 3 (04) : 495 - 501
  • [35] DDT in methane-air mixtures
    M. Kuznetsov
    G. Ciccarelli
    S. Dorofeev
    V. Alekseev
    Yu. Yankin
    T. H. Kim
    [J]. Shock Waves, 2002, 12 : 215 - 220
  • [36] BLAST WAVE INITIATION ENERGY FOR THE DETONATION OF METHANE ETHANE AIR MIXTURES
    VANDERMOLEN, R
    NICHOLLS, JA
    [J]. COMBUSTION SCIENCE AND TECHNOLOGY, 1979, 21 (1-2) : 75 - 78
  • [37] Promotion of the high-temperature autoignition of hydrogen-air and methane-air mixtures by normal alkanes
    V. Ya. Basevich
    S. N. Medvedev
    F. S. Frolov
    S. M. Frolov
    [J]. Russian Journal of Physical Chemistry B, 2015, 9 : 250 - 254
  • [38] Promotion of the high-temperature autoignition of hydrogen-air and methane-air mixtures by normal alkanes
    Basevich, V. Ya.
    Medvedev, S. N.
    Frolov, F. S.
    Frolov, S. M.
    [J]. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY B, 2015, 9 (02) : 250 - 254
  • [39] Experimental Research on Expanding Turbulent Flames of Lean Methane/Hydrogen/Air Mixtures
    Cai, Xiao
    Wang, Jin-Hua
    Zhao, Hao-Ran
    Huang, Zuo-Hua
    [J]. Kung Cheng Je Wu Li Hsueh Pao/Journal of Engineering Thermophysics, 2020, 41 (02): : 514 - 519
  • [40] Experimental study on DDT for hydrogen-methane-air mixtures in tube with obstacles
    Porowski, R.
    Teodorczyk, A.
    [J]. JOURNAL OF LOSS PREVENTION IN THE PROCESS INDUSTRIES, 2013, 26 (02) : 374 - 379