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THE NUMERICAL SIMULATION OF HYDROGEN DIFFUSION FOR THE HYDROGEN LEAKAGE IN TUNNEL  

Ahn, Hyuk-Jin (서강대학교 대학원 기계공학과)
Jung, Jae-Hyuk (서강대학교 대학원 기계공학과)
Hur, Nahm-Keon (서강대학교 기계공학과)
Lee, Moon-Kyu (서강대학교 기계공학과)
Yong, Gee-Joong (교통안전공단 자동차성능연구소)
Publication Information
Journal of computational fluids engineering / v.15, no.2, 2010 , pp. 47-54 More about this Journal
Abstract
In the present study, a numerical simulation for the diffusion of hydrogen leakage of FCV(Fuel Cell Vehicle) in a tunnel was performed to aid the assessment of risk in case of leakage accident. The temporal and spatial distributions of the hydrogen concentration around FCV are predicted from the present numerical analyses. Flammable region of 4-74% and explosive region of 18-59% hydrogen by volume was identified from the present results. Factors influencing the diffusion of the hydrogen jet were examined to evaluate the effectiveness of tunnel ventilation system for relieving the accumulation of the leaked hydrogen gas. The distribution of the concentration of the leaked hydrogen for various cases can be used as a database in various applications for the hydrogen safety.
Keywords
Hydrogen Leakage; Hydrogen Diffusion; CFD(Computational Fluid Dynamics); Forced Ventilation;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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