The effect of the composition of elementary chemical reactions and the uncertainty of the rate constants on the accuracy of calculating the rate of hydrogen oxidation

Abstract

A table of twenty-four elementary reactions of the hydrogen-oxygen mixture combustion process is compiled. For each reaction, the published values of several rate constants are given, which can differ by tens of times. The influence of the uncertainty in the values of the rate constants on the accuracy of calculations of the hydrogen burning rate at temperatures of 2000 K, 2400 K, and 3000 K is determined. For each temperature, the initial composition of the mixture in calculating the combustion rate is assumed to be equilibrium. The evaluation of the influence of the rate constants on the rate of the hydrogen combustion reaction is determined by the adopted procedure by changing the reaction rate of the active centers and the reaction product depending on the values of the rate constants of the elementary reactions.