摘要
以天津市内某英国庭院风格式建筑一层厨房为起火点,火灾规模4 MW,分有无水喷淋保护两种情况以FDS模拟火灾发展过程。在无水喷淋保护条件下,约在772 s时建筑内发生轰燃;约1 100 s时一楼大厅内顶棚温度达到800℃左右。在有水喷淋保护时,约106 s和120 s时两个喷头相继作用,火势受到明显控制;120 s时,厨房内温度基本不超过200℃;约1 000 s以后,火势已逐渐减小并熄灭。除厨房外,其余部位均未过火。
The fire in a building of British courtyard style was simulated by two scenes of with or without protection of water spray. The fire burned from kitchen and the fire load was 4 MW. The flashover happened after 720 s and the temperature of top in hall reached to 800 ~C after 1 100 s with no protection of water spray. The fire was controlled by two sprinklers acted at 106 s and 120 s with the protection of water spray. The temperature of kitchen was lower than 200℃ at 120 s and the fire was put out after 1 100 s. The fire could not spread out of the kitchen.
出处
《消防科学与技术》
CAS
北大核心
2010年第5期403-406,共4页
Fire Science and Technology
关键词
FDS
历史建筑
水喷淋
烟气温度
轰燃
FDS
historical building
water spray
smoke temperature
flashover
