Experimental Study on Distribution Characteristics and Leakage Detection of Hydrogen Release from Hydrogen Supply System of Fuel Cell Truck

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2023-06-22 DOI:10.4271/04-17-01-0006

Shu Liu, R. He

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Abstract

The hydrogen supply system of a fuel cell truck is in a semi-enclosed space where hydrogen is easy to accumulate if a hydrogen leak occurs. The acquisition of hydrogen dispersion behavior data is essential to support the detection of hydrogen release. The purpose of this article is to present the characteristics of hydrogen concentration distribution and delay time of hydrogen leakage detection under different leakage parameters. The experiments have been performed in a hydrogen storage cabin with six hydrogen sensors arranged on the roof to measure hydrogen concentration. During the tests, hydrogen was released into the test cabin through standard leaks. Two different release rates (80 NL/min and 450 NL/min), three different release positions, and six release directions are investigated to analyze the effects on the distribution of hydrogen concentration and leakage detection delay time. This article presents both the experimental facility and results. The experimental results can help optimize the placement of hydrogen sensors and the design of a hydrogen leakage detection system.

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燃料电池载重汽车供氢系统释氢分布特性及泄漏检测实验研究

燃料电池卡车的供氢系统处于半封闭空间，如果发生氢气泄漏，氢气很容易积聚。氢的分散行为数据的获取是支持氢释放检测的必要条件。本文的目的是研究不同泄漏参数下氢气浓度分布和氢气泄漏检测延迟时间的特点。实验是在一个储氢舱中进行的，车顶安装了6个氢气传感器来测量氢气浓度。在测试过程中，氢气通过标准泄漏被释放到测试舱内。研究了两种不同的释放速率(80 NL/min和450 NL/min)、三种不同的释放位置和六种释放方向对氢气浓度分布和泄漏检测延迟时间的影响。本文介绍了实验装置和实验结果。实验结果可为氢气传感器的优化布置和氢气泄漏检测系统的设计提供参考。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.