Proceedings of the 2024 6th International Conference on Civil Architecture and Urban Engineering (ICCAUE 2024)

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Study on the Influence of Garage Ventilation Conditions on Hydrogen Leakage and Diffusion

Authors
Zeyao Li1, Xiaohong Yuan1, *
1School of Automotive Engineering, Wuhan University of Technology, Wuhan, 430070, China
*Corresponding author. Email: yxh_hying@163.com
Corresponding Author
Xiaohong Yuan
Available Online 30 April 2025.
DOI
10.2991/978-94-6463-688-8_19How to use a DOI?
Keywords
Garage; Hydrogen leakage; Ventilation volume; Ventilation area
Abstract

To investigate the effects of garage ventilation volume and ventilation area on hydrogen diffusion and concentration distribution after accidental hydrogen leakage in fuel cell vehicles, numerical simulation methods were used to study and analyze the hydrogen accumulation concentration and combustible hydrogen accumulation area under the garage roof. The results showed that with the increase of ventilation volume and ventilation area, the elimination effect of combustible hydrogen in the garage gradually became significant. There was a critical ACH of 10, beyond which the effect of eliminating combustible hydrogen was no longer significant; Similarly, there is a critical ventilation area of 2.25 m2, which can completely eliminate combustible hydrogen in the garage. In addition, when the garage is ventilated, a vortex zone will be generated that causes the accumulation of flammable hydrogen, and it will move away from the ventilation opening as the ventilation volume increases. The research results of this article can provide guidance for the ventilation design of garages that can meet the parking needs of hydrogen fuel cell vehicles.

Copyright
© 2025 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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Volume Title
Proceedings of the 2024 6th International Conference on Civil Architecture and Urban Engineering (ICCAUE 2024)
Series
Advances in Engineering Research
Publication Date
30 April 2025
ISBN
978-94-6463-688-8
ISSN
2352-5401
DOI
10.2991/978-94-6463-688-8_19How to use a DOI?
Copyright
© 2025 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

Cite this article

risenwbib
TY  - CONF
AU  - Zeyao Li
AU  - Xiaohong Yuan
PY  - 2025
DA  - 2025/04/30
TI  - Study on the Influence of Garage Ventilation Conditions on Hydrogen Leakage and Diffusion
BT  - Proceedings of the 2024 6th International Conference on Civil Architecture and Urban Engineering (ICCAUE 2024)
PB  - Atlantis Press
SP  - 172
EP  - 183
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6463-688-8_19
DO  - 10.2991/978-94-6463-688-8_19
ID  - Li2025
ER  -