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Cellular structure of detonation wave in hydrogen-methane-air mixtures

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Identyfikatory
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
The paper reports on an experimental study of the cellular structure of detonation waves in hydrogen-methane-air mixtures. Experiments were performed in a 6-m circular cross section tube with inner diameter of 140 mm (full diameter of 170 mm) and a 0.8-m driver section tube with inner diameter of 90 mm. The initial conditions of stoichiometric hydrogen-methane-air mixtures were 1 atm and 293 K with varoius hydrogen content. The average detonation cell size for stoichiometric hydrogen-methane-air mixtures obtained by the smoked foil technique during the experiments was calculated with the 2D Fourier transform. Using the Cantera program, the detonation cell width was computed as a function of initial pressure and molar methane fraction in fuel for a stoichiometric methane-hydrogen-air mixture at initial temperature 295 K. The results of the computations were compared against the experimental results.
Rocznik
Strony
130--135
Opis fizyczny
Bibliogr. 7 poz., rys., wykr.
Twórcy
autor
  • Institute of Heat Engineering, Warsaw University of Technology, 21/25 Nowowiejska Street, 00-665 Warsaw, Poland, rporo@itc.pw.edu.pl
Bibliografia
  • [1] G. Karim, I. Wierzba, Y. Al-Alousi, Methane-hydrogen mixtures as fuels, International Journal of Hydrogen Energy 21 (7) (1996) 625-631.
  • [2] J. Gauducheau, B. Denet, G. Searby, A numerical study of lean CH4/H2/air premixed flames at high pressure, Combustion Science and Technology 137 (1998) 81-99.
  • [3] J.-Y. Ren, W. Qin, F. Egolfopoulos, T. Tsotsis, Strain-rate effects on hydrogen-enhanced lean premixed combustion, Combustion and Flame 124 (2001) 717-720.
  • [4] M. Carcassi, F. F., Deflagration of H2-air and CH4-air lean mixtures in a vented multi-compartment environment, Energy 30 (2005) 1439-1451.
  • [5] N. Chaumeix, S. Pichon, F. Lafosse, C. Paillard, Role of chemical kinetics on the detonation properties of hydrogen/natural gas/air mixtures, International Journal of Hydrogen Energy 32 (2007) 2216-2226.
  • [6] J. Austin, F. Pintgen, J. Shepherd, Lead shock oscillation and decoupling in propagating detonations, in: 43rd AIAA Aerospace Sciences Meeting and Exhibit, no. AIAA-2005-1170, Reno, 2005.
  • [7] J.-P. Hebral, J. E. Shepherd, User guide for detonation cell size measurement using photoshop and matlab, Technical Report FM00-6, Graduate Aeronautical Laboratories, California Institute of Technology (2000).
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-PWA9-0051-0016
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