不同基质上汽油池火传播速率  

Gasoline pool fire propagation velocity on different substrates

作　　者：王凯全[1] 疏小勇[1] 王学友[1] 顾涛[1] 

机构地区：[1]常州大学环境与安全工程学院,江苏常州213164

出　　处：《消防科学与技术》2013年第11期1192-1195,共4页Fire Science and Technology

基　　金：国家"十二五"科技支撑计划项目(2011BAK03B08)

摘　　要：研制了汽油池火传播速率实验平台,以水和多孔吸油材料作为基质,借助高速摄像机记录火焰传播的动态过程,分析火焰的传播速率规律。结果表明:其闪火焰锋面在两种基质上均以某一平均速率为中值上下波动式传播,在水上传播的速率均值较大,在多孔吸油材料上传播的波动性较大;水与多孔材料上火焰传播速度均值分别为1.55、1.33,标准差分别为0.26、0.27,变异系数分别为0.17、0.21,而极差分别为1.01、1.49;汽油火焰在两种基质上均以匀速传播。An experiment platform of gasoline pool fire propaga- tion velocity was developed to analyze gasoline pool fire propa- gation velocity on different substrates. The dynamic process of gasoline flame propagation on the water and porous oil-absorp rive material as two kinds of different substrates was respective- ly recorded and saved by high-speed camera. The analysis showed that the propagation of flash flame front on the two kinds of different substrates were both fluctuant taking with the mean velocity as a median by the shape of flame propagation. The mean of flame propagation velocity on the water was lar- ger, and the fluctuation of the propagation on the porous oil-ab- sorptive material was fiercer. The mean of flame propagation velocity on the water and porous oil-absorptive material were 1.55 and 1.33 respectively, standard deviation were 0.26 and 0.27, the coefficient of variation were 0.17 and 0.21, and the range were 1.01 and 1.49. The flame propagation velocities on the two kinds of different substrates were both kept almost con stant.

关 键 词：池火 汽油火焰 不同基质 火焰传播速率 

分 类 号：X913.4[环境科学与工程—安全科学] TK121[动力工程及工程热物理—工程热物理]