自然排烟口对机场航站楼排烟效果的影响  

Effect of natural smoke vents on smoke exhaust effect of airport terminal

作　　者：雷晶晶 赵赶超 陈勇刚[1] LEI Jing-jing;ZHAO Gan-chao;CHEN Yong-gang(Civil Aviation Flight University of China,Sichuan Guanghan 618307,China)

机构地区：[1]中国民用航空飞行学院,四川广汉618307

出　　处：《消防科学与技术》2020年第6期760-763,共4页Fire Science and Technology

基　　金：民航局安全能力项目(14002600100017J003);四川省教育厅科研项目(18ZB0683);中国民航飞行学院2019年度青年基金项目(Q2019-161)。

摘　　要：采用FDS模拟与理论计算相结合的方法,设定6种上、下开口面积之比的工况进行模拟,研究自然排烟口对机场航站楼排烟效果的影响。结果表明:当上、下开口面积之比不大于1.8时,随着排烟口面积增加,室内平均温度下降,烟气层高度抬升,排烟效果越来越好;当火灾发展至720 s时,室内平均温度仍在安全范围内,对于人员疏散影响不大。建立理论模型,与模拟结果进行对比,得出当上、下开口面积之比为1.8时理论模型适用性较好。The method of combining FDS simulation with theoretical calculation was used to study the influence of natural smoke out⁃let on the smoke exhaust effect of airport terminal based on 6 scenarios with different ratio of upper and lower opening area.The results showed that when the ratio of upper and lower open area is not greater than 1.8,with the increase of smoke outlet area,the in⁃door average temperature drops,and the height of smoke layer rises,the smoke exhaust effect becomes better and better.When the fire develops to 720 s,the average indoor temperature is still with⁃in the safe range,which has little impact on the evacuation of personnel.The theoretical model was established and compared with the simulation results.It is concluded that the theoretical model is applicable when the ratio of upper and lower opening area is 1.8.

关 键 词：自然排烟 排烟效果 人员疏散 模拟分析 理论计算 

分 类 号：X913.4[环境科学与工程—安全科学] TU248.6[建筑科学—建筑设计及理论]