Model Experimental Study on the Heat Exhaust Efficiency in the Central Smoke Exhaust Mode with Independent Smoke Duct in Extra-long Highway Tunnel

摘要：

How to control the fire smoke of the extra-long highway tunnel is one of the important and difficult problems in fire protection study. It is impossible to get an integrated evaluation of the smoke control effect through some static indexes such as the smoke temperature, concentration, pressure or smoke control area, and there is also a high possibility of chanciness and error. Through the reduced-scale experiment, we get the rule that there is a linear increasing trend for the smoke temperature against time in different situations, in order to suggest the heat exhaust efficiency X be the key parameter to evaluate the smoke control effect in central exhaust system. The results show that X can make up the disadvantages of the above static indexes and is reliable and practical.

关键词： smoke temperature heat exhaust efficiency smoke control effect central exhaust system

作者: NI Tianxiao XU Zhisheng WU Dexing

作者单位: Institute of Disaster Prevention Science and Safety Technology, Central South University, Changsha 4 Zhejiang Provincial Institute of Communications Planning, Design & Research, Hangzhou 310006, Zhejia

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: 746-751

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）