THEORETICAL ANALYSIS OF THE BACKDRAFT PHENOMENA INDUCED BY LIQUID FUEL  

作　　者：GONG Jian YANG Lizhong CHEN Xiaojun GUO Zaifu 

机构地区：[1]State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230026, China

出　　处：《Chinese Science Bulletin》2006年第3期364-368,共5页

基　　金：The authors would like to thank Dr.Weng,W.G.This work was supported by the China NKBRSF Project(No.2001CB409603);National Natural Science Foundation of China(Grant No.50306024).

摘　　要：A dynamical model of temperature of hot smoke layer is quantitatively established based on the whole backdraft procedure induced by liquid fuel. The whole procedure consists of the preburn fire (the first period), the secondary fuel injection (the second period) and backdraft development (the third period). The model considers enthalpy loss of liquid fuel vola- tilization and hot smoke layer mass gain. In this paper, simulative results of the model are well compared with experimental results, and simulative results of the model are analyzed. Furthermore, combustion efficiency under limited ventilation and practical combustion reaction rate are worth investigating.A dynamical model of temperature of hot smoke layer is quantitatively established based on the whole backdraft procedure induced by liquid fuel. The whole procedure consists of the prebum fire （the first period）, the secondary fuel injection （the second period） and backdraft development （the third period）. The model considers enthalpy loss of liquid fuel volatilization and hot smoke layer mass gain. In this paper, simulative results of the model are well compared with experimental results, and simulative results of the model are analyzed. Furthermore, combustion efficiency under limited ventilation and practical combustion reaction rate are worth investigating.

关 键 词：倒转现象 液体燃料 动力学模型 温度 挥发作用 

分 类 号：TQ517.4[化学工程]