Journal of Engineering Physics and Thermophysics

, Volume 85, Issue 6, pp 1413–1418 | Cite as

Analysis of the temperature distribution in the explosion of a methane/air mixture in a tunnel

Article

The aim of this work is to investigate temperature distribution in methane/air mixture explosion near a wall of a tunnel by numerical simulation. The results obtained on the basis of the hypothesis of an adiabatic wall are compared with those for a nonadiabatic wall. It is shown that the temperature near the wall in explosion of methane/air mixtures in tunnels changes abruptly. The hypothesis of an adiabatic wall leads to a great error in the calculated temperature near the wall. If heat conduction in the wall is ignored, the temperatures at various locations of a section are almost equal, whereas the measured temperatures on the vessel wall are always lower than those calculated on the basis of the hypothesis mentioned. However, when it is necessary to find the temperatures in the field outside the range near the wall, heat conduction in it can be ignored.

Keywords

methane/air mixtures temperature of explosion numerical simulation adiabatic wall 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    K. L. Cashdollar, I. A. Zlochower, and G. M. Green, Flammability of methane, propane, and hydrogen gases, J. Loss Prev. Process Ind., 13, 327–340 (2000).CrossRefGoogle Scholar
  2. 2.
    N. Gascoin and P. Gillard, Confined kerosene vapor explosion: severity prediction laws based on numerical simulations, Energy Fuels, 24, 404–418 (2010).CrossRefGoogle Scholar
  3. 3.
    E. Daniau, M. Bouchez, O. Herbinet, P.-M. Marquaire, N. Gascoin, and P. Gillard, Fuel reforming for scramjet thermal management and combustion optimization, in: A Collection Tech. Papers13th AIAA/CIRA Int. Space Planes Hypersonic Syst. Technol. Conf. 3 (2005), pp. 1799–1807.Google Scholar
  4. 4.
    O. Kalejaiye, P. R. Amyotte, M. J. Pegg, and K. L. Cashdollar., Effectiveness of dust dispersion in the 20-L Siwek chamber, J. Loss Prev. Process Ind., 23, 46–59 (2010).Google Scholar
  5. 5.
    D. B. Mercer, P. R. Amyotte, D. J. Dupuis, M. J. Pegg, A. E. Dahoe, W. B. C. de Heij, J. F. Zevenbergen, and B. Scarlett, The influence of injector design on the decay of pre-ignition turbulence in a spherical explosion chamber, J. Loss Prev. Process Ind., 14, 269–282 (2001).CrossRefGoogle Scholar
  6. 6.
    N. Chawla, P. R. Amyotte, and M. J. Pegg, A comparison of experimental methods to determine the minimum explosible concentration of dusts, Fuel, 75, 654–658 (1996).CrossRefGoogle Scholar
  7. 7.
    A. Kobiera, J. Kindracki, P. Zydak, and P. Wolanski, A new phenomenological model of gas explosion based on characteristics of flame surface, J. Loss Prev. Process Ind., 20, 271–280 (2007).CrossRefGoogle Scholar
  8. 8.
    P. Wolanski, C. W. Kauffman, M. Sichel, and J. A. Nicholls, Detonation of methane–air mixtures, in: Proc. 18th Symp. Int. Combust. (1981), pp. 1651–1660.Google Scholar
  9. 9.
    A. E. Dahoe, Laminar burning velocities of hydrogen–air mixtures from closed vessel gas explosions, J. Loss. Prev. Process Ind., 18, 152–166 (2005).CrossRefGoogle Scholar
  10. 10.
    A. E. Dahoe and P. H. Goey, On the determination of the laminar burning velocity from closed vessel gas explosions, J. Loss Prev. Process Ind., 16, 457–478 (2003).CrossRefGoogle Scholar
  11. 11.
    A. E. Dahoe, R. S. Cant, and B. Scarlett, On the decay of turbulence in the 20-liter explosion sphere, Flow Turbul. Combust., 67, 159–184 (2002).CrossRefGoogle Scholar
  12. 12.
    A. E. Dahoe, R. S. Cant, M. J. Pegg, and B. Scarlett, On the transient flow in the 20-liter explosion sphere, J. Loss Prev. Process Ind., 14, 475–487 (2000).CrossRefGoogle Scholar
  13. 13.
    C. L. Tang, Z. H. Huang, C. Jin, J. He, J. Wang, X. Wang, and H. Miao, Explosion characteristics of hydrogen–nitrogen–air mixtures at elevated pressures and temperatures, Int. J. Hydrogen Energy, 34, 554–561 (2009).CrossRefGoogle Scholar
  14. 14.
    Q. Zhang, W. Li, D.-C. Lin, Y. Duan, and H.-M. Liang, Experimental study of gas deflagration temperature distribution and its measurement, Exp. Therm. Fluid Sci., 35, 503–508 (2011).CrossRefGoogle Scholar
  15. 15.
    J. Z. Xiao, Z. W. Song, and F. Zhang, Experimental study on the coefficient of thermal conductivity for concrete and analysis, J. Constr. Mater. [in Chinese], 13, 17–21 (2010).Google Scholar
  16. 16.
    H. P. Sun, Y. S. Yuan, J. H. Jiang, and J. Y. Cheng, Experimental study on the change rule of coefficient for concrete, Concrete [in Chinese], No. 5, 59–61 (2009).Google Scholar
  17. 17.
    D. M. Jiang, Combustion in Engine [in Chinese], Xi’an Jiao Tong Univ. Press, Xi’an (2002).Google Scholar

Copyright information

© Springer Science+Business Media New York 2012

Authors and Affiliations

  1. 1.State Key Laboratory of Explosion Science and TechnologyBeijing Institute of TechnologyBeijingChina

Personalised recommendations