摘要
以工业酒精为燃料，在一房间与走廊相联的模型中，研究了封闭燃烧一定时间后，突然进风对室内火灾的影响。分别在走廊进风。起火室进风等情况下，观察了燃烧状况的变化，测量了典型截面的温度分布，并对一些现象出现的原因作了分析。指出这种突然进风，可在短时间、一定范围内降低温度，但主要效果是促进燃烧。当室内有明火源时还会引发烟气回燃，致使其中的温度急剧升高。
Some investigations of sudden ventilation influence to fire were taken when burning lasted a certain period in a room-corridor model under closed condition with ethgl alcohol as fuel. The burning situation and temperature distribution were recorded when the door or window were moved out suddenly,the reason of those phenomena were analized.It is confirmed that major influence of sudden ventilation is to promote burning intensity.If flame exist inside, smoke flashback would happen frequently,and the temperature can got sharp rise.
出处
《火灾科学》
CSCD
1996年第1期1-7,共7页
Fire Safety Science
关键词
建筑火灾
突然进风
烟气回燃
室内火灾
s:Building Fire
Combustible Smoke
Sudden Ventilation
Smoke Flashback
