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.
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).
关键词
倒转现象
液体燃料
动力学模型
温度
挥发作用
liquid fuel, backdraft, volatilization, dynamical model, temperature.
