In this paper, the ignition delay times of hydrogen/silane/air mixtures in the presence of particles with diameters of 10 μm, 1 μm and 100 nm at pressures of 1, 10 and 20 atm have been calculated in the temperature ranging from 1000 to 2000 K. It has been obtained that the increasing the particles volume concentration and decreasing their diameter leads to increasing of the mixture ignition delay time and, in some cases, to break in the dependencies at a certain temperature, called the limiting ignition temperature of the mixture. It is determined that the smaller the diameter of the particles and the greater their volume concentration, the higher the limiting ignition temperature of the mixture.
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