Ignition of a Two-Fuel Hydrogen-Silane Mixture in Air

Based on the previously developed model of detailed kinetics, the ignition delay time of two-fuel hydrogen-silane-air mixtures is calculated. The effect of the silane concentration and the temperature of the mixture on the ignition delay time is determined. It is shown that addition of a small (within 20%) amount of silane to the hydrogen-air mixture in the temperature range from 1200 to 2500 K leads to significant reduction of the ignition delay time of the mixture, whereas there is only a minor decrease in mixtures with silane concentrations higher than 20%.