Kinetic Mechanism of Ignition and Combustion of Three-Component Surrogates C3H8/nC4H10/iC4H10 of Alternative Ffuels Based on Liquefied Hydrocarbon Gases
V. A. Savelyeva, A. M. Savelyev, S. A. Torokhov, D. V. Novakovsky
Baranov Central Institute of Aviation Motors, Moscow, Russia
Keywords: alternative fuel, modeling, surrogates, ignition, combustion, kinetic mechanism
Abstract
A reaction mechanism for the ignition and combustion of three-component C3H8/nC4H10/iC4H10 surrogates of alternative fuels based on liquefied petroleum gases has been developed. The mechanism describes the ignition of the surrogates at both high and low temperatures, as well as in the region of inverse temperature dependence of ignition delay time. The mechanism includes 442 reactions for 84 components. The results of testing the mechanism are presented using experimental data: ignition delay time of isobutane mixtures, hydrocarbon gas mixtures containing propane, n-butane, and isobutane (T0 = 670 ÷ 1478 K, ρ0 = 1 ÷ 30 atm, φ = 0.3 ÷ 2.0), normal flame propagation velocity in isobutane-air mixtures, and the concentration of the main isobutane oxidation products in a flat-flame burner.
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