Investigation of the maximum tunnel ceiling temperature caused by two fires

被引：10
作者：
Jia, You [1 ]
Fan, Xueliang [1 ]
Zhao, Xuejuan [2 ]
Deng, Yelin [1 ]
Zhu, Xinlei [1 ]
Zhao, Weifeng [1 ]
机构：
[1] Soochow Univ, Sch Rail Transportat, Suzhou 215131, Jiangsu, Peoples R China
[2] Univ Sci & Technol China, Suzhou Inst Adv Study, Suzhou Key Lab Urban Publ Safety, Suzhou 215123, Jiangsu, Peoples R China
来源：
INTERNATIONAL JOURNAL OF THERMAL SCIENCES | 2022年 / 178卷
基金：
中国国家自然科学基金;
关键词：
Fire in tunnel; Maximum temperature; Two fire sources; Equivalent single fire source; GAS TEMPERATURE; LONGITUDINAL VENTILATION; SMOKE TEMPERATURE; POOL FIRES; DRIVEN; HEAT;
D O I：
10.1016/j.ijthermalsci.2022.107596
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
This paper investigated the maximum ceiling temperature and equivalent single fire source induced by two fires combined with small-scale experimental data and numerical simulations. The influences of fire size and spacing on the maximum temperature expressed by the heat release rate (HRR) for two fires were considered. The results demonstrate that the experimental maximum temperatures in the tunnel are smaller than those obtained by Li's model. Accordingly, a model to describe the maximum temperature for two fires expressed by the HRR was proposed, and the change trend of the HRR ratio was analyzed. The predicted values agree well with the experimental and numerical values, verifying that the proposed model is reliable.
引用
收藏
页数：8
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