ISO 9705实验间内细水雾的效能研究  

Research on the efficiency of water mist in the ISO 9705 room

作　　者：胡超[1] 徐强[1] 

机构地区：[1]南京理工大学,江苏南京210094

出　　处：《消防科学与技术》2013年第10期1118-1122,共5页Fire Science and Technology

基　　金：江苏省自然科学基金项目(BK2008416)

摘　　要：为讨论细水雾灭固体火的机理及其灭火效能,在ISO 9705实验间内采用4种不同火源功率的木垛,分别置于房间中心和墙角,分析细水雾灭火过程中热通量、室内温度和氧体积分数的变化规律。研究表明:细水雾施加后,中心火燃烧的热通量会立即降低,而墙角火燃烧的热通量会先升高然后慢慢降低;室内温度能很快得到抑制;室内氧气体积分数能在100s内恢复到21%。In order to analyze the mechanism and fire extinguis- hing effectiveness of water mist extinguishing solid fire, wood cribs with four different fire power were placed in the center and corner of the ISO 9705 room, and the variation regularity of heat flux, indoor temperature and oxygen concentration in the process of water mist extinguishing fire were analyzed. The studies show that after applying water mist, the heat flux of center fire burning will immediately reduce, while the heat flux of corner fire burning will first increase then decrease gradually;indoor temperature can be suppressed quickly~ the volume frac- tion of indoor oxygen can be restored to 21% within 100 s.

关 键 词：细水雾 木垛火 IS0 9705实验间 灭火效能 

分 类 号：X924.4[环境科学与工程—安全科学] TU892[建筑科学]