Experimental Study on the Wood Combustion Restraining by Ultra-fine Water Mist in Confined Space

Because of wood is one kind of the basic combustible material, a small scale compartment was built for ultra-fine water mist restraining wood fire, and then the restraining efficiency and related factors were investigated. The study found: the heat release rate and the volume fraction of O2 decreased quickly, the production of CO2 increased in a short time and ultimately tended to be stable after discharging the ultra-fine water mist. It showed that the ultra-fine water mist can effectively reduce the heat release rate of wood and components generation rate. It was found that the restraining effect relies on preignition time, mist flux, discharging time and so on.特集 : 「資源、新エネルギー、環境、防災研究国際セミナー