An review of research on liquid hydrogen leakage: regarding China’s hydrogen refueling stations

IF 2.6 4区 工程技术 Q3 ENERGY & FUELS Frontiers in Energy Research Pub Date : 2024-09-03 DOI:10.3389/fenrg.2024.1408338
Yangyiming Rong, Wenhao Yuan, Jianbin Peng, Jiaxin Hou, Jun Gao, Xiang Zhang, Jianye Chen, Shunyi Chen
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Abstract

Hydrogen is regarded as the premier energy source for future sustainability and renewability. However, its distinct physicochemical properties render it prone to explosions in the event of a leak. Therefore, there is a need for more comprehensive research dealing with hydrogen leakage, explosion scenarios, and risk assessment. This paper provides an overview of the current hydrogen policies adopted in China. It reviews the processes of hydrogen refueling station construction and the thermophysical mechanisms of liquid hydrogen leakage. In this regard, the effects of various factors, including leakage rate, leakage time, leakage hole size, wind direction and speed, and building location, on the hydrogen leakage rate are analyzed and evaluated. Additionally, the impacts of different factors on hydrogen explosion overpressure are reported, including hydrogen concentration, wind speed, obstacles, and ignition position, in addition to the current applications of quantitative risk assessment methods in hydrogen refueling stations. Finally, the limitations of current research on liquid hydrogen leakage and explosion accidents are highlighted, along with the shortcomings of current risk assessment methods for liquid hydrogen refueling stations.
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液氢泄漏研究综述:关于中国的加氢站
氢被认为是未来可持续和可再生的主要能源。然而,其独特的物理化学特性使其在泄漏时容易发生爆炸。因此,需要对氢气泄漏、爆炸情景和风险评估进行更全面的研究。本文概述了中国目前采用的氢能政策。它回顾了加氢站的建设过程和液氢泄漏的热物理机制。在此基础上,分析和评估了各种因素对氢气泄漏率的影响,包括泄漏率、泄漏时间、泄漏孔大小、风向和风速、建筑物位置等。此外,报告了不同因素对氢气爆炸超压的影响,包括氢气浓度、风速、障碍物和点火位置,以及定量风险评估方法在加氢站中的应用现状。最后,强调了当前液氢泄漏和爆炸事故研究的局限性,以及当前液氢加气站风险评估方法的不足之处。
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来源期刊
Frontiers in Energy Research
Frontiers in Energy Research Economics, Econometrics and Finance-Economics and Econometrics
CiteScore
3.90
自引率
11.80%
发文量
1727
审稿时长
12 weeks
期刊介绍: Frontiers in Energy Research makes use of the unique Frontiers platform for open-access publishing and research networking for scientists, which provides an equal opportunity to seek, share and create knowledge. The mission of Frontiers is to place publishing back in the hands of working scientists and to promote an interactive, fair, and efficient review process. Articles are peer-reviewed according to the Frontiers review guidelines, which evaluate manuscripts on objective editorial criteria
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