The Rapid Comnression Ignition of Fuel-Air Mixture (2nd Report)

Abstract

This report refers to the critical concentrations of aldehyde for ignition of kerosene-air mixture compressed rapidly. There are experiments in which the effects of compression ratio and cylinder temperature to the critical aldehyde dentity have been researched. The critical fuel concentration for igntion of kerosene-air mixture appears to be controled by the thermal explosion theory as well as the static phenomena. The thermal explosion theory makes the ignition critical condition such that the rate of chemical enthalpy transformation is equal to that of thermal dissipation. Similarly the behavior of the critical aldehyde concentration can be understood applying the thermal explosion theory to the imaginal aldehyde oxgen mixture instead of the real system, provided that the aldehyde concentration represents well the degree of inactive combustion in kerosene air mixture.