| ENGINEERING PHYSICS |
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Influence of smoke exhaust start-up time on smoke control |
| WANG Wandi, ZHANG Hui |
| Institute for Public Safety Research, Department of Engineering Physics, Tsinghua University, Beijing 100084, China |
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Abstract Fire smoke exhaust systems in buildings need accurate designs of the smoke exhaust start-up time. The start-up time is mainly determined by expert experience or the performance of constant exhaust systems, which are very subjective. This paper describes a recursive solution method to calculate the smoke layer height that integrates empirical models. A sensitivity analysis method is then used to study the influence of the smoke exhaust start-up time on the smoke control. Methods are given to calculate the best start-up time, the risk start-up time, and the critical invalidation start-up time. These findings can be used to improve smoke exhaust systems.
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| Keywords
building
fire
smoke exhaust start-up time
sensitivity
smoke control
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Issue Date: 15 February 2016
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[1] Toon M H, Maybauer M O, Greenwood J E, et al. Management of acute smoke inhalation injury [J]. Critical Care and Resuscitation: Journal of the Australasian Academy of Critical Care Medicine, 2010, 12(1): 53-61.
[2] Crewe R J, Stec A A, Walker R G, et al. Experimental results of a residential house fire test on tenability: Temperature, smoke, and gas analyses [J]. Journal of Forensic Sciences, 2014, 59(1): 139-154.
[3] Black A. Carbon Monoxide Detection in Residential Occupancies: Fire Protection Handbook [M]. Quincy, MA, USA: National Fire Protection Association, 2003.
[4] 韩朱旸, 翁文国, 黄全义. 城市高层建筑火灾人员伤害实时定量评估 [J]. 清华大学学报: 自然科学版, 2012, 52(12): 1720-1725. HAN Zhuyang, WENG Wenguo, HUANG Quanyi. Real-time quantitative risk assessment of casualty for high-rise building fires [J]. J Tsinghua Univ: Sci & Tech, 2012, 52(12): 1720-1725. (in Chinese)
[5] 郭增辉, 何其泽, 黎昌海. 商业建筑机械排烟系统启动时间的研究 [J]. 消防科学与技术, 2013, 32(6): 646-649. GUO Zenghui, HE Qize, LI Changhai. Study on the start time of mechanical exhaust system in economical building [J]. Fire Science and Technology, 2013, 32(6): 646-649. (in Chinese)
[6] 吴爱臣, 付海明. 排烟系统开启时间对安全疏散影响的数值模拟[J]. 消防科学与技术, 2010, 29(11): 962-964. WU Aichen, FU Haiming. Numerical simulation about influences of the smoke control system start time to evacuation [J]. Fire Science and Technology, 2010, 29(11): 962-964. (in Chinese)
[7] XU Junbin, ZHANG Cheng, ZHAO Junfei, et al. The study on influence factors of the mechanical smoke evacuation system in atrium buildings [J]. Procedia Engineering, 2013, 52: 508-513.
[8] 赵泽文. 某商业综合体室内步行街消防设计数值模拟[J]. 消防科学与技术, 2012, 31(8): 816-820.ZHAO Zewen. Numerical simulation of fire protection design of a commercial complex [J]. Fire Science and Technology, 2012, 31(8): 816-820. (in Chinese)
[9] 赵泽文, 徐海斌. 某悬挂式球幕影院消防设计数值模拟分析[J]. 消防科学与技术, 2011, 30(11): 1022-1025.ZHAO Zewen, XU Haibin. Numerical simulation and analysis of fire protection design of a hanging dome theater [J]. Fire Science and Technology, 2011, 30(11): 1022-1025. (in Chinese)
[10] 郭子东, 岳海玲, 吴立志. 基于风险评价的重大火灾隐患判定方法[J]. 消防科学与技术, 2010, 29(4): 327-331. GUO Zidong, YUE Hailing, WU Lizhi. Major fire hazard judgment method based on risk assessment [J]. Fire Science and Technology, 2010, 29(4): 327-331. (in Chinese)
[11] 程远平, 陈亮, 张孟君. 火灾过程中火源热释放速率模型及其实验测试方法 [J]. 火灾科学, 2002(2): 70-125.CHENG Yuanping, CHEN Liang, ZHANG Mengjun. The models and experimental testing method of heat release rate of fuel during the development of fire [J]. Fire Safety Science, 2002(2): 70-125. (in Chinese)
[12] National Fire Protection Association. Guide for Smoke Management Systems in Malls, Atria and Large Areas [M]. Quincy, MA, USA: National Fire Protection Association, 2009.
[13] 中华人民共和国公安部消防局. 中国消防手册[M]. 上海: 上海科学技术出版社, 2010.Fire Department of Ministry of Public Security of the People's Republic of China. China Fire Protection Handbook [M]. Shanghai: Shanghai Science and Technology Press, 2010. (in Chinese)
[14] 李引擎. 建筑防火性能化设计 [M]. 北京: 化学工业出版社,2005. LI Yinqing. Performance-Based Building Fire Protection Design [M]. Beijing: Chemical Industry Press, 2005. (in Chinese)
[15] Lougheed G D, Hadjisophocleous G V. Investigation of atrium smoke exhaust effectiveness [J]. ASHRAE Transactions, 1997, 103(2): 15-21. |
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2016,
Vol. 56
