Influences of Smoke Exhaust Effect by Setting Antechamber Buffer Zone in Straight Corridor of High-rise Building

摘要：

In high-rise building fires, a great deal of fresh air will be sent into the fire floor when pressurization is taken. Smoke is diluted by the fresh air, and the efficiency of mechanical smoke exhaust is reduced. The assumption that set antechamber buffer zone in straight corridor of highrise building was put forward, and mathematic model of smoke flow in high-rise building and κ=ε threedimension turbulence model with two equations were used to simulate the influences of smoke exhaust effect by setting antechamber buffer zone in straight corridor of high-rise building. The results shown that, for straight corridor, setting antechamber buffer zone the efficiency of mechanical smoke exhaust was about 3.6％ higher than without antechamber buffer zone and smokeless zone was formed in the corridor nearby antechamber, and it was helpful to escaping from fire floor for people.

关键词： high-rise building straight corridor smoke exhaust buffer zone simulation

作者: YANG Yunchun HE Jiapeng XU Xiaolei ZHOU Ru

作者单位: School of Urban Construction and Safety Engineering, Nanjing University of Technology, Nanjing 210009,Jiangsu, China Jiangsu Key Laboratory of Urban and Industry Safety, Nanjing 210009, Jiangsu, China

会议类型: 国际会议

会议名称: The 2010 International Symposium on Safety Science and Technology(2010 安全科学与技术国际会议)

会议地点: 杭州

会议语种:英文

页码: 730-734

在线出版日期: 2010-10-26（万方平台首次上网日期，不代表论文的发表时间）