李昌厚;李思成;陈汪海涛;

• 1:中国人民武装警察部队学院消防指挥系

摘要(Abstract)：

火灾发生后,火灾烟气主要通过疏散走廊向建筑的其他部位蔓延。有效控制疏散走廊中的烟气,可以阻止其进一步蔓延到楼梯间。了解火灾烟气在疏散走廊中的运动规律,是控制其蔓延扩散的前提。热浮力和室外风压是烟气在走廊中运动的主要驱动力,研究二者耦合作用对走廊中烟气运动的影响,对进一步弄清火灾烟气的流动规律具有较大的意义。采用网络模拟软件CONTAM 3.0模拟疏散走廊中火灾烟气在上述两种驱动力作用下的运动情况。结果表明,随室外风速增大,疏散走廊中火灾烟气的运动速度增大,远大于单纯热浮力作用时烟气的运动速度;当热浮力和室外风压耦合驱动时,室外风压对烟气运动的影响起主要作用。

关键词(KeyWords)： 安全工程;疏散走廊;烟气流动;热浮力;室外风压;CONTAM 3.0网络模拟

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(51278493)

作者(Authors): 李昌厚;李思成;陈汪海涛;

参考文献(References)：

• [1]Fighting Bureau of the Ministry of Public Security of the PRC(公安部消防局).China firefighting yearbook(中国消防年鉴)[M].Beijing:China Personnel Publishing House,2005:315-397.
• [2]HUO Ran(霍然),HU Yuan(胡源),LI Yuanzhou(李元洲).Introduction to building fire safety engineering(建筑火灾安全工程导论)[M].Hefei:Press of University of Science and Technology of China,2009:96-97.
• [3]MOWRER F W,MILKE J A,TORERO J L.A comparison of driving forces for smoke movement in buildings[J].Journal of Fire Protection Engineering,2004,14:237-264.
• [4]XU Zhisheng(徐志胜),JIANG Xuepeng(姜学鹏).Smoke control engineering(防排烟工程)[M].Beijing:China Machine Press,2011:16-17.
• [5]ZHOU Ru(周汝),HE Jiapeng(何嘉鹏),JIANG Juncheng(蒋军成),et al.Smoke diffusion in transverse passageway of high-rise building fires[J].Journal of Nanjing University of Aeronautics&Astronautics,2007,39(3):412-416.
• [6]HE Y P.Smoke temperature and velocity decays along corridors[J].Fire Safety Journal,1999,33:71-74.
• [7]KIM M B,HAN Y S,YOON M O.Laser-assisted visualization and measurement of corridor smoke spread[J].Fire Safety Journal,1998,31:239-251.
• [8]HU L H,HUO R,LI Y Z,et al.Full-scale burning tests on studying smoke temperature and velocity along a corridor[J].Tunnelling and Underground Space Technology,2005,20:223-229.
• [9]QUITER J.Guidelines for designing fire safety in very tall buildings[M].Society of Fire Protection Engineers,2012.
• [10]WALTON G N.CONTAM user guide and program documentation[M].Gaithersburg:National Institute of Standards and Technology,2005:221-231.
• [11]PERSILY A K,ELIZABETH M I.Input data for multizone airflow and IAQ analysis[M].Gaithersburg:National Institute of Standards and Technology,2001:22-32.
• [12]National Fire Protection Association.NFPA 92B Guide for smoke management systems in malls,atria,and large areas[S].Quincy:National Fire Protection Association,2000.
• [13]DGJ 08-88—2006 Technical specification for building smoke control(建筑防排烟技术规程)[S].
• [14]HE Chunxia(何春霞).Method of network model to calculate properties of fire smoke flow in corridor of building and studies on optimum mechanical smoke extraction volume(公共通道网络模型方法及最佳机械排烟量分析)[D].Chongqing:Chongqing University,2003.
• [15]ASHRAE.ASHRAE handbook—fundamentals[M].Atlanta:American Society of Heating,Refrigerating and Air-Conditioning Engineers,2009.
• [16]WANG L Z,DOLS W S,CHEN Q Y.Using CFD capabilities of CONTAM 3.0 for simulating airflow and contaminant transport in and around buildings[J].HVAC&R Research,2010,16:749-763.