Experiment and numerical simulation of cable trench fire detection

被引：12
|
作者：
Liu, Xiaosheng [1 ,2 ]
Hou, Dong [1 ,2 ]
Ji, Jun [1 ,2 ]
Zhu, Hui [3 ]
机构：
[1] Global Energy Interconnect Res Inst Co Ltd, State Key Lab Adv Power Transmiss Technol, Beijing 102201, Peoples R China
[2] Global Energy Interconnect Res Inst Co Ltd, Future City Sci & Technol, Beijing 102201, Peoples R China
[3] Sichuan Fire Res Inst MEM, Chengdu 610036, Sichuan, Peoples R China
来源：
CASE STUDIES IN THERMAL ENGINEERING | 2021年 / 28卷
关键词：
Cable trench fire; Numerical simulation; Fire detector; FDS; ELECTRICAL CABLES;
D O I：
10.1016/j.csite.2021.101338
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
In this paper, the full-scale cable fire test is carried out in the fire compartment of cable trench in standard substation in order to explore the influence of fire detector sensitivity. The point-type temperature detector, point-type smoke detector, cable-type temperature detector, and suction-type smoke detector are used to test the fire alarm sequence. The temperature field, combustible gas concentration, and fire alarm sequence of fire detector with different sensitivity are simulated by FDS. The results show that: The numerical simulation results are in good agreement with the experimental results. The lower the alarm threshold, the shorter the response time of fire detector. The sensitivity of suction-type smoke detector has great influences on the detection results.
引用
收藏
页数：10
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