Kinetic Model of Before-Flame Reaction in Diesel with Volume Mixture Formation

A problem has been solved to determine the rate change in time and space of the before-flame chemical reactions in a volume occupied with fuel mixture, having different concentrations of reactants. The mixture ignition delay time in diesel is calculated taking into account factors of chain and heat acceleration of reactions and also a local coefficient of the air excess for burning. This allows determining more exactly the space and time characteristics of the flame occurrence and subsequent spread within a combustor.