Abstract
Experiments were made of the flame propagation process of a spray compound mixture to clarify the effects of fuel spray fraction and initial presser etc. on the combustion characteristics. A kerosene spray-propane-air mixture was ignited at the center of the constant volume vessel, high speed video observation was made of the spherically propagating flame, and the flame propagation speed was measured. Compounding the kerosene spray in the propane air mixture at high pressure (1.1MPa) enhanced the flame propagation speed in the whole combustible range, especially the enhancement was large for the mixture with an equivalence ratio around 1.1.
