Ignition of Hydrogen–Oxygen Mixtures Behind the Incident Shock Wave Front
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Experimental investigation of the ignition of a stoichiometric hydrogen–oxygen mixture behind an incident shock wave in a shock tube at pressures p = 0.002–0.46 MPa and temperatures T = 500–1000 K is carried out. The existence of three limits of ignition typical of the ignition of hydrogen–oxygen mixtures in a spherical vessel is noted. It is shown that at pressures p ≥ 0.1 MPa the ignition of a hydrogen–oxygen mixture begins at a much lower temperature than the ignition of a hydrogen–air mixture. The measured induction times agree well with theoretical estimates.
Keywordshydrogen–oxygen mixtures combustion ignition limits induction time incident shock wave
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- 3.E. Schultz and J. Shepherd, Validation of detailed reaction mechanisms for detonation simulation, Tech. Report FM99-5, California Institute of Technology, Pasadena (2000).Google Scholar
- 6.V. V. Voevodskii and R. I. Soloukhin, Concerning the mechanism and the limits of chain self-ignition of hydrogen with oxygen in shock waves, Dokl. Akad. Nauk SSSR, 154, No. 6, 1425–1428 (1964).Google Scholar
- 7.A. Cohen and J. Larsen, Explosive mechanism of the H2–O2 reaction near the second ignition limit, Techn. Report BRL-1386, Aberdeen Proving Ground: Ballistic Research Laboratories (1967).Google Scholar
- 8.B. Lewis and G. von Elbe, Combustion, Flames and Explosions of Gases, Academic Press, New York (1951).Google Scholar
- 12.M. F. G. Cremers, M. J. Remie, K. R. A. M. Schreel, and L. P. H. de Goey, Heat transfer mechanisms of laminar flames of hydrogen + oxygen, Combust. Flame, 139, Nos. 1–2, 39–51 (2004).Google Scholar
- 13.A. D. Snyder, J. Robertson, D. L. Zanders, and G. B. Skinner, Shock tube studies of fuel–air ignition characteristics, Tech. Report AFAPL-TR-65-93, Air Force Aero-Propulsion Laboratory, Wright-Patterson (1965).Google Scholar
- 15.R. R. Craig, A shock tube study of the ignition delay of hydrogen–air mixtures near the second explosion limit, Techn. Report AFAPL-TR-66-74, Air Force Aero-Propulsion Laboratory, Wright-Patterson (1966).Google Scholar
- 18.P. V. Kozlov, S. A. Losev, and Yu. V. Romanenko, Measurement of the induction time of the H2 + O2 reaction initiated by a shock wave in a stoichiometric mixture (2011); www.chemphys.edu.ru/media/files/2011-09-01-002.pdf.