Study of hydrogen jet fire behavior in longitudinal ventilated tunnel

被引：1
作者：
Yue, Zhitao [1 ,2 ]
Zhang, Aifeng [1 ,2 ]
Wang, Changjian [1 ,3 ]
Li, Yang [1 ,2 ]
Li, Quan [1 ,2 ]
Wang, Shaoheng [1 ,2 ]
机构：
[1] Hefei Univ Technol, Coll Civil Engn, Hefei 230009, Anhui, Peoples R China
[2] Anhui Int Joint Res Ctr Hydrogen Safety, Hefei 230009, Peoples R China
[3] Minist Educ, Engn Res Ctr Safety Crit Ind Measurement & Control, Hefei 230009, Peoples R China
来源：
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2025年 / 103卷
基金：
国家重点研发计划; 中国国家自然科学基金;
关键词：
Hydrogen safety; Hydrogen jet fire; Longitudinal ventilation; Extended flame length; Tunnel; HIGH-PRESSURE; DIFFUSION FLAMES; SIMULATION; LENGTH; SCALE; RISK;
D O I：
10.1016/j.ijhydene.2025.01.094
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The effect of longitudinal ventilation on hydrogen jet fires was investigated in tunnel. The extended flame length, temperature, and thermal radiation flux were measured for nozzle diameters (1 similar to 5.12 mm), tilt angles (30-60 degrees) and pressures (1-4 MPa). The results indicate that the longitudinal wind speed has a suppressive effect on the extended flame length on the ground. The extended flame length on the ground decreases with increasing wind speed. Longitudinal ventilation also has a suppressive effect on the gas temperature around the flame, and the maximum temperature difference decreases with increasing wind speed. Based on the geometric model of the extended flame, a fitted relationship between the dimensionless extended flame length and the longitudinal wind speed was established. Additionally, a fitted relationship between the dimensionless peak flame temperature and the normalized position was also proposed.
引用
收藏
页码：34 / 44
页数：11
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