Investigation on compressed air foams fire-extinguishing model for oil pan fire

摘要

In this article, based on simplifying of extinction agent's extinguishing mechanism and the fuel's combustion characteristic, an extinguishing model is established. Three kinds of fuels-93 # gasoline, 0 # diesel oil, 95% ethanol, are applied. The compressed air Aqueous film forming foams (AFFF) is used as the extinction agent, The heat release rate of the fuels is obtained by the free burning test, the extinguishing time under different effective extinguishing intensity is obtained by the implementing actual extinguishing test. Investigation is implemented on extinguishing models of compressed air AFFF for diesel oil/gasoline extinguishing and insoluble AFFF for ethanol extinguishing, therefore the calculation method for the fire extinguishing models of different extinction agent for different fuels is obtained.