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http://dx.doi.org/10.7842/kigas.2022.26.3.38

A Numerical Analysis on the Stress Behavior Characteristics of a Pressure Vessel for Hydrogen Filling by FEM  

Chol, Seunghyun (Department of Mechanical Engineering, Dongyang Mirae University)
Byonl, Sung Kwang (Department of Mechanical Engineering, Dongyang Mirae University)
Kim, Yun Tae (Department of Mechanical Engineering, Dongyang Mirae University)
Choi, Ha Young (Department of Mechanical Engineering, Dongyang Mirae University)
Publication Information
Journal of the Korean Institute of Gas / v.26, no.3, 2022 , pp. 38-44 More about this Journal
Abstract
As the supply of hydrogen charging stations for hydrogen supply accelerates due to the hydrogen economy revitalization policy, the risk of accidents is also increasing. Since most hydrogen explosion accidents lead to major accidents, it is very important to secure safety when using hydrogen energy. In order to utilize hydrogen energy, it is essential to secure the safety of hydrogen storage containers used for production, storage, and transportation of liquid hydrogen. In this paper, in order to evaluate the structural safety of a hydrogen-filled pressure vessel, the behavioral characteristics of gas pressure were analyzed by finite element analysis. SA-372 Grade J / Class 70 was used for the material of the pressure vessel, and a hexahedral mesh was applied in the analysis model considering only the 1/4 shape because the pressure vessel is axisymmetric. A finite element analysis was performed at the maximum pressure using a hydrogen gas pressure vessel, and the von Mises stress, deformation, and strain energy density of the vessel were observed.
Keywords
pressure vessel; FEM; gas pressure; DOE;
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