Experimental Study on Wood Crib Fire Suppression of Water Mist with additives

Abstract

To improve the fire suppressing efficiency of water mist, we do experimental study on the wood crib fire suppressing by water mist with additives in a confined space. In the condition of constantly changing of pressure in water mist nozzle and the unchanged fire, fire suppressing performance of water mist with different additives were analyzed and contrasted by changing the type and the concentration of additives as well as the ratio of composite addtives. The experimental results show that the adding of additives can obviously improve the fire suppressing performance of water mist, different concentration of different addtives can cause many differences in fire suppression performance, and there exists their best concentration or the optimal proportion. In our experiment, it has the possibility of fire catching again, for the ability of suppressing a naked flame is well, but the control capability on fixed carbon combustion are inadequate.