A study of combustion characteristics of hydrocarbon-air mixtures at high temperature and pressure by using rapid compression machine

Experiments have been carried out with quiescent hydrocarbon-air mixtures for determining their combustion characteristics, under high temperature and pressure using a single and an opposed rapid compression machine with spark ignition. The absolute value of pressure exponent for methane-air and propane-air mixtures increases with increasing initial temperature and the temperature exponent is estimated to be about 2.6 even at high temperature and pressure conditions.