Promotion of the high-temperature autoignition of hydrogen-air and methane-air mixtures by normal alkanes
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Numerical simulations are performed to examine the effect of small additives of heavy hydrocarbons on the high-temperature autoignition of homogeneous hydrogen-air and methane-air mixtures. The kinetic calculations are carried out using a previously developed detailed mechanism of the oxidation and combustion of normal alkanes. It is shown that the behavior of hydrogen-hydrocarbon-air ternary mixtures is ambiguous. Large hydrocarbon additives of n-heptane and n-hexadecane to a hydrogen-air mixture promote its autoignition at low temperatures and inhibits it at high temperatures, whereas in a definite high-temperature range, small additives of hydrocarbons can promote rather than inhibit the autoignition. The autoignition of methane-air mixtures is promoted by additives of heavy hydrocarbons in all cases.
Keywordskinetic modeling autoignition hydrogen-hydrocarbon-air and methane-hydrocarbon-air ternary mixtures promotion inhibition
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- 6.V. Ya. Basevich, S. N. Medvedev, F. S. Frolov, and S. M. Frolov, in Combustion and Explosion, Ed. by S. M. Frolov (Torus Press, Moscow, 2014), No. 7, p. 14 [in Russian].Google Scholar
- 9.B. V. Lidskii, M. G. Neigauz, V. Ya. Basevich, and S. M. Frolov, Khim. Fiz. 22(3), 51 (2003).Google Scholar
- 10.N. N. Semenov, Chain Reactions (Nauka, Moscow, 1986) [in Russian].Google Scholar
- 11.A. A. Borisov, G. I. Skachkov, and K. Ya. Troshin, in Advanced Computation and Analysis of Combustion, Ed. by G. D. Roy, S. M. Frolov, and P. Givi (ENAS, Moscow, 1997), p. 79.Google Scholar
- 12.K. Ya. Troshin, Doctoral Dissertation in Mathematics and Physics (IKhF RAN, Moscow, 2008).Google Scholar