Experimental Study on Kitchen Fire Accidents in Different Scenarios *

In this paper, a real-sized fire test platform for home kitchen is built, and oil pan fire, kitchen flue fire and cabinet fire tests are carried out on this platform. The evolution characteristics of different fire accidents in home kitchen are studied through the change and development of temperature, smoke and fire situation. The following conclusions are drawn from the experiment: the time of igniting 0.5L, 1.0L and 2.5L cooking oil by using gas stove fire is 200, 480 and 742s, respectively; when the range hood is open, the range hood can be ignited by the cooking oil fire above 1.0L, thus causing range hood fire. It is very difficult to extinguish cooking oil fire and kitchen flue fire with dry powder fire extinguisher, and it is very easy to re-ignite. Water-based fire extinguisher specially used for cooking oil fire is needed. Kitchen flue fire can ignite all combustibles in kitchen within 3 minutes, and reaching the state of flashover. The results of this study can provide reference for kitchen fire prevention, detection, disposal and other technologies.