火源位置对室内火灾的影响研究

doi:10.16265/j.cnki.issn1003-3033.2019.07.007

中国安全科学学报 ›› 2019, Vol. 29 ›› Issue (7): 39-44.doi: 10.16265/j.cnki.issn1003-3033.2019.07.007

火源位置对室内火灾的影响研究

李瑞琦, 杨茉^** 教授, 徐洪涛副教授, 王治云

上海理工大学能源与动力工程学院,上海 200093

收稿日期:2019-03-14 修回日期:2019-05-16 出版日期:2019-07-28 发布日期:2020-10-21
通讯作者: ** 杨茉(1958—),男,辽宁辽中人,博士,教授,博士生导师,主要从事传热及数值技术研究。E-mail: yangm@usst.edu.cn。
作者简介:李瑞琦 (1992—),男,山西河津人,硕士研究生,研究方向为室内火灾传播及其控制。E-mail:liruiqi88@163.com。
基金资助:
国家自然科学基金重点项目资助(51736007);国家自然科学基金面上项目资助(51476103)。

Study on influence of fire location on indoor fire

LI Ruiqi, YANG Mo, XU Hongtao, WANG Zhiyun

School of Energy and Power Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China

Received:2019-03-14 Revised:2019-05-16 Online:2019-07-28 Published:2020-10-21

摘要/Abstract

摘要： 为研究火源位置对室内火灾传热传质及烟气危害性的影响,利用火灾动力学模拟器构建室内火灾模型,并开展室内火灾模拟试验;设置3种不同火源位置场景,通过小尺寸火灾试验来验证数值模拟程序及参数,确保计算结果的合理性后,进行数值计算;探讨在3种场景下的速度场、温度场及烟气的剂量有效分数(FED)的变化。研究表明:水平方向上,室内火灾通过门对室外最大影响范围为房间水平长度的66.7%;当火源位置处于房间地面几何中心时,从开始着火到烟气具有致死性所需的时间最长,比最短场景多21.75%。

关键词: 室内火灾, 试验模拟, 数值计算, 传热传质, 剂量有效分数(FED)

Abstract: In order to study the influence of fire location on heat and mass transfer and smoke hazard in the room when a fire occurs, the indoor fire model was constructed by using fire dynamics simulator, and the indoor fire simulation experiments were carried out. Three cases with different fire source locations were set up. After verifying the rationality of the model, the numerical simulation was carried out. The changes of velocity field, temperature field and FED in three cases were discussed. Results show that in the horizontal direction, the maximum influence of indoor fire passing through the door on the outdoor is 66.7% of the room's horizontal length, and that when the fire source is located in the geometric center of the room's ground, the time required from the start of fire to the lethality of smoke is the longest, which is 21.75% more than the shortest scene.

Key words: indoor fire, experimental model, numerical calculation, heat and mass transfer, fractional effective dose (FED)

中图分类号:

X928.7

李瑞琦, 杨茉, 徐洪涛, 王治云. 火源位置对室内火灾的影响研究[J]. 中国安全科学学报, 2019, 29(7): 39-44.

LI Ruiqi, YANG Mo, XU Hongtao, WANG Zhiyun. Study on influence of fire location on indoor fire[J]. China Safety Science Journal, 2019, 29(7): 39-44.

参考文献

[1] 范维澄,刘乃安.中国火灾科学基础研究进展与展望[J].中国科学技术大学学报,2006,36(1): 1-8.
FAN Weicheng, LIU Naian. Progress and prospect of fundamental fire research in China [J]. Journal of University of Science and Technology of China, 2006,36(1): 1-8.
[2] 孙少华,程家骥,丛北华,等. 强制通风对隧道起火影响的全尺寸试验研究[J].中国安全科学学报,2018,28(10): 56-61.
SUN Shaohua, CHENG Jiaji, CONG Beihua, et al. Full-scale experimental study on effects of forced ventilation on tunnel fire [J]. China Safety Science Journal, 2018, 28(10): 56-61.
[3] 郝彧露,陈俊敏,陈柯衡,等. 地下换乘大厅火灾烟气温度分布研究[J].中国安全科学学报,2018,28(5): 80-85.
HAO Yulu, CHEN Junmin, CHEN Keheng, et al. Study on temperature distribution of underground transfer hall fire smoke[J].China Safety Science Journal, 2018, 28(5): 80-85.
[4] WU Fan, JIANG Juncheng, ZHOU Ru, et al. Smoke flow temperature beneath the ceiling in an atrium-style subway station with different fire source locations[J]. Procedia Engineering, 2018, 211: 794-800.
[5] YANG Juan, PAN Xuhai, WANG Zhilei, et al. Numerical study on the smoke flow characterization and phenomenon of plug-holing under lateral smoke exhaust in tunnel fire[J]. Journal of Applied Fluid Mechanics, 2018, 11(1): 115-126.
[6] WANG Jin, YANG Mo, ZHANG Yuwen. Coupling-diffusive effects on thermosolutal buoyancy convection in a horizontal cavity[J]. Numerical Heat Transfer Part A: Applications, 2015, 68(6): 583-597.
[7] LI Zheng, YANG Mo, ZHANG Yuwen. Lattice boltzmann method simulation of 3-d natural convection with double MRT model[J]. International Journal of Heat & Mass Transfer, 2016, 94: 222-238.
[8] PURSER D. Toxicity assessment of combustion products[J]. The SFPE Handbook of Fire Protection Engineering, 2002, 2: 83-171.
[9] LEVIN B, BRAUN E, NAVARRO M, et al. Further development of the n-gas mathematical model: an approach for predicting the toxic potency of complex combustion mixtures[J]. Fire and Polymers II, 1995, 599: 293-311.
[10] BABRAUSKAS V, GANN R, LEVIN B, et al. A methodology for obtaining and using toxic potency data for fire hazard analysis[J]. Fire Safety Journal, 1998, 31(4): 345-358.
[11] SALMON F, LACANETTE D, MINDEGUIA J, et al. FireFOAM simulation of a localised fire in a gallery[J]. Journal of Physics: Conference Series, 2018, 1107(4): 042017.
[12] MCKENNA S, BIRTLES R, Dickens K, et al. Flame retardants in UK furniture increase smoke toxicity more than they reduce fire growth rate[J]. Chemosphere, 2018, 196: 429-439.
[13] ISO9705. Reaction to fire tests — room corner test for wall and ceiling lining products — part 1: test method for a small room configuration[S]. 2016.
[14] ZHANG Wei, HAMER A, KLASSEN M, et al. Turbulence statistics in a fire room model by large eddy simulation[J]. Fire Safety Journal, 2002, 37(8): 721-752.
[15] MCDERMOTT R, MCGRATTAN K, HOSTIKKA S. Fire dynamics simulator (version 5) technical reference guide[J]. NIST Special Publication, 2008, 1018: 5-11.
[16] DRYSDALE D. An introduction to fire dynamics[M]. West Sussex: John Wiley & Sons, 2011: 387-393.
[17] 童朝阳, 林福生, 黄启斌. 火灾烟气毒理学的研究进展[J]. 中国药理学与毒理学杂志, 2003,17(4): 319-320.
TONG Chaoyang, LIN Fusheng, HUANG Qibin. Research progress in toxicology of fire smoke[J]. Chinese Journal of Pharmacology and Toxicology, 2003,17(4): 319-320.

火源位置对室内火灾的影响研究

Study on influence of fire location on indoor fire

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