烟气向远处房间传播过程中开口对CO空间分布的影响  

Influence of opening on CO spatial distribution in fire smoke transport to remote room

作　　者：杨立中[1] 武来喜[1] 冯文兴[1] 

机构地区：[1]中国科学技术大学火灾科学国家重点实验室,安徽合肥230026

出　　处：《热科学与技术》2007年第4期363-367,共5页Journal of Thermal Science and Technology

基　　金：国家自然科学基金资助项目(50576095)

摘　　要：通过小尺寸房间-走廊-房间模型的实验,研究了烟气向远处房间传播过程中开口对火灾烟气危害性气体空间分布的影响。结果表明,在远距离房间上层形成均一相同的烟气分层。开口对目标房间中烟气危害性气体分布有重要作用,出口高度小或者开口的上沿高度小会使得CO体积分数增高。Based on experiments conducted in a reduced-scale compartment-corridor-compartment model, the characteristics of spatial distribution of toxic gases in the remote room and the influence of opening on the fire smoke transport from a fire hazard were studied in this paper. The results suggest that the toxic gases in the upper layer in the corridor are characterized by uniform expansion. And the CO concentration has an inverse-proportional relationship with the exit＇s height and the soffit of simulated window and the opening play an important role on the toxic gases distribution in the remote target room.

关 键 词：火灾烟气 危害性成分 空间分布 CO 目标房间 开口 

分 类 号：TK121[动力工程及工程热物理—工程热物理]