|本期目录/Table of Contents|

[1]牛奕,刘静雨,房韬.加氢站氢气泄漏扩散特性的小尺寸实验与模拟研究*[J].中国安全生产科学技术,2024,20(5):130-137.[doi:10.11731/j.issn.1673-193x.2024.05.018]
　NIU Yi,LIU Jingyu,FANG Tao.Small-scale experiment and simulation study of hydrogen leakage and diffusion characteristics in hydrogen fueling station[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2024,20(5):130-137.[doi:10.11731/j.issn.1673-193x.2024.05.018]
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加氢站氢气泄漏扩散特性的小尺寸实验与模拟研究*
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
20
期数:
2024年5期
页码:
130-137
栏目:
职业安全卫生管理与技术
出版日期:
2024-05-31

文章信息/Info

Title:
Small-scale experiment and simulation study of hydrogen leakage and diffusion characteristics in hydrogen fueling station
文章编号:
1673-193X(2024)-05-0130-08
作者:
牛奕; 刘静雨; 房韬
(武汉理工大学 安全科学与应急管理学院，湖北 武汉 430070)
Author(s):
NIU Yi;  LIU Jingyu;  FANG Tao
(School of Safety Science and Emergency Management,Wuhan University of Technology,Wuhan Hubei 430070,China)
关键词:
加氢站; 氢气泄漏; 风洞试验; 数值模拟
Keywords:
hydrogen fueling station;  hydrogen leakage;  wind tunnel experiment;  numerical simulation
分类号:
X937
DOI:
10.11731/j.issn.1673-193x.2024.05.018
文献标志码:
A
摘要:
为探究泄漏量、环境风速对加氢站内氢气泄漏扩散的影响，使用氦气代替氢气，开展小尺寸风洞实验与数值模拟研究，分析泄漏量、环境风速对氢气泄漏扩散特性的影响规律。研究结果表明：下风向有障碍物存在时会导致其附近风速降低，泄漏气体的扩散距离反而增大；在垂直于风向的水平方向上，气体扩散距离受到泄漏量和风速的影响较小，在高度和风向方向上，气体扩散距离大致与泄漏量和风速比值的均方根成正比；可燃区域体积大致与泄漏量成正比，与风速成反比；通过相似原理得到全尺寸加氢站氢气扩散距离和可燃区域体积的计算公式，其计算值与全尺寸模拟结果相符合。研究结果可为加氢站事故预防提供一定参考。
Abstract:
In order to study the influence of leakage rate and ambient wind speed on the leakage and diffusion of hydrogen in the hydrogen fueling station,the small-scale wind tunnel experiment and numerical simulation were conducted by replacing hydrogen with helium,and the influence of leakage rate and ambient wind speed on the leakage and diffusion characteristics of hydrogen was revealed.The results show that the downwind obstacle will cause the wind speed near it to decrease,while the diffusion distance of the leaked gas will increase.In the horizontal direction perpendicular to the wind direction,the diffusion width of hydrogen is less affected by the leakage rate and wind speed,but the gas diffusion distance in the height and wind directions is roughly proportional to the root mean square of the ratio of leakage rate to wind speed.The volume of the combustible region is roughly proportional to the leakage rate and inversely proportional to the wind speed.Moreover,the calculation formulas for the hydrogen diffusion distance and combustible region volume of the full-size hydrogen fueling station are obtained by the similarity principle,and the calculated values are in accordance with the results of full-size simulation.The research results can provide a certain reference for the prevention of hydrogen fueling station accidents.

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备注/Memo

备注/Memo:
收稿日期： 2023-12-23
* 基金项目： 国家重点研发计划项目（2021YFB4000901）；湖北省重点研发计划项目（2021BCA216）
作者简介： 牛奕，博士，副教授，主要研究方向为火灾蔓延及烟气生成动力学机理、安全仿真与模拟。
更新日期/Last Update: 2024-05-30