Calculation of Flammability Limits of Silane-Oxygen and Silane-Air Mixtures
D. A. Tropin, A. V. Fedorov
Khristianovich Institute of Theoretical and Applied Mechanics, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090 Russia
Keywords: силановоздушная смесь, время задержки воспламенения, детальная химическая кинетика, математическое моделирование, silane-air mixture, ignition delay time, detailed chemical kinetics, mathematical modeling
Abstract
The upper and lower flammability limits of silane-oxygen and silane-air mixtures at pressures of 0.05-1.1 atm and temperatures of 350-640 K are found on the basis of Westbrook's detailed chemical kinetics. It is demonstrated that the death of OH radicals has a minor effect on these limits (their stability) within the framework of the Arrhenius kinetic model. The effect of the silane-air mixture composition on the flammability limits is found. It is shown that the behavior of the ultimate temperature of ignition is nonmonotonic as the fraction of silane increases.
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