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http://dx.doi.org/10.7842/kigas.2020.24.6.61

Behavior characteristics of hydrogen storage vessel(TYPE 1) under gas pressure and temperature conditions using FEM  

Cho, Seunghyun (Dongyang Mirae University)
Kim, Young Gyu (Korea Gas Safety Corporation)
Ko, Young Bae (Korea Institute of Industrial Technology)
Lee, Il Kwon (Daelim University)
Publication Information
Journal of the Korean Institute of Gas / v.24, no.6, 2020 , pp. 61-69 More about this Journal
Abstract
This paper is a study of the behavior characteristics that occur in the hydrogen storage vessel TYPE 1 according to pressure and temperature conditions by FEM(Finite element method). Von Mises stress (VMS) generated at the highest pressure was compared with Yield strength (YS) of the material for structural safety assessment of the container, and the results of plastic strain energy density (PSED) were analyzed as basic data for life expectancy. According to the analysis results, the safety of the hydrogen gas storage vessel is not ensured due to the occurrence of VMS higher than the yield strength on the bottom of the storage container at a gas pressure of 40 Mpa or higher. In addition, the results of VMS caused by temperature conditions are very low and the behavior by temperature can be ignored. The maximum pressure of VMS/YS below 1 is calculated to be about 30 Mpa, indicating that the hydrogen storage container subject to this paper should be managed with a gas charging pressure of less than 30 Mpa.
Keywords
Hydrogen storage vessel; TYPE 1; Behavior; Gas pressure; Temperature; FEM;
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