摘要
采用网络模型软件模拟预测建筑火灾烟流运动特性,以火灾建筑内的人员作为被保护对象,在原有的火灾烟气危险状态判据中新增加一项临界CO的质量浓度,综合起来确定人员可用安全疏散时间ASET。人员所需安全疏散时间RSET采用经验数据计算。比较ASET和RSET,从而确定建筑物的排烟量。利用实例进行了验证,计算结果表明,其他条件相同时,不同火源条件下的排烟量是不同的,而且临界CO的质量浓度作为危险状态判据是非常必要的。
Predict the properties of fire smoke flow by network model software, with the staffs in fire building as the protected object. Critical mass concentration of CO is added in the fire danger criterion standards, which can be used to determine the available safety egress time （ASET）. The required safety egress time （RSET） can be counted by empirical data. Compare ASET and RSET to determine the corridor exhaust smoke volume. An example shows that exhaust smoke volume is different under different fire source conditions when the other conditions are same. And adding critical mass concentration of CO as the fire danger criterion standards is very essential.
出处
《制冷与空调（四川）》
2012年第6期531-535,共5页
Refrigeration and Air Conditioning
基金
重庆市重点攻关科技资助项目(CSTC2006AB2004)
关键词
机械排烟量
火灾
安全疏散
网络模型
mechanical exhaust smoke volume
fire
safety evacuation
network model
