Self-Ignition Model of a Hydrogen Air Mixture
O. V. Shul'ts
All-Russian Scientific Research Institute of Technical Physics, Snezhinsk, 456770 Russia
Keywords: самовоспламенение, пределы воспламенения, водород, кинетический механизм, радикалы, математическая модель, autoignition, ignition limits, hydrogen, kinetic mechanism, radicals, mathematical model
Abstract
A numerical analysis of self-ignition of a hydrogen-air-water vapor mixture at different initial pressures is carried out. The results of this analysis are used to make a shortened list of reactions that make the largest contribution to the process rate during induction. A simplified analytical description of the system state before self-ignition, which makes it possible to calculate the thermal power and adiabatic heating rate of the system is presented. A method for estimating the autoignition limits from the adiabatic heating rate of the mixture is described.
|
