抄録
Multiphase combustion process of micro PET (polyethylene terephthalate) resin particles is examined by the following two types of experiment; an optical observation of a single particle with different oxygen concentration and that of two particles aligned horizontaly with different initial separation distance. The results show that the occurrence of fire of a single particle is delayed with decrease in oxygen concentration due to reduction of the heat transfer from the flame. With decreasing distance between particles, the flame pattern changes to one marged flame from individual flames because of increase the effect of lack of oxygen.
