技术中心

【英文篇名】 Numerical simulation of smoke control and extraction in a two level underground railway station 【作者中文名】 童艳; 何嘉鹏; 尤朝阳; 【作者英文名】 By Tong Yan; He Jiapeng and You ZhaoyangNanjing University of Technology; Nanjing; China; 【作者单位】 南京工业大学; 【文献出处】 暖通空调, Hv 地铁站台; 火灾; 防烟; 排烟; 【英文关键词】 zone model; underground railway platform; fire; smoke control; smoke extraction; 【摘要】 运用区域模型模拟车站内不同防排烟工况下烟气温度、高度、CO体积分数随时间的变化规律,以三项危险临界条件是否实现作为衡量防排烟效果的判据。模拟结果表明,只有同时对站台楼梯送风防烟和对火源所在防烟分区及时排烟,才能在车站内实现最有利于人员疏散的安全环境。 【英文摘要】 By using a zone model, simulates the behaviour of smoke temperature, height, volume fraction of CO changing with time under different smoke control and extraction conditions in the station and introduces three critical conditions as a criterion for judging the effects of different smoke control and extraction methods. The results show that only supplying air to platform stairs and simultaneously extracting smoke of fire zone can a best safe evacuation environment in the station be maintained. 【基金】 江苏省社会发展计划资助项目“城市地铁火灾控制研究”(编号:BS2003031)