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http://dx.doi.org/10.5855/ENERGY.2019.28.3.010

An Experimental Study on the FMEA Evaluation of Non-metallic Materials in High-Pressure Hydrogen Facility  

Ahn, Jeongjin (Department of New Energy Engineering, Graduate School of Energy and Environment, Seoul National University of Science and Technology)
Kim, Wanjin (Korea Gas Safety Corporation)
Kim, Laehyun (Graduate School of Energy and Environment, Seoul National University of Science and Technology)
Publication Information
Journal of Energy Engineering / v.28, no.3, 2019 , pp. 10-17 More about this Journal
Abstract
According to South Korea's policy of supplying eco-friendly hydrogen vehicles, related industries are actively conducting research on the development of hydrogen cars and hydrogen charging station infrastructure. On the other hand, there is a lack of empirical research and assessment of the risk of non-metallic materials (such as liners, seals, gaskets) for classified materials that directly affect the durability and reliability of hydrogen vehicles and hydrogen charging stations. In this study, the risk factors for liners and seals of non-metallic parts used in high-pressure hydrogen installations were derived using FMEA, and the RPN values were calculated by converting the severity, frequency of occurrence and degree of detection into scores. The maximum value of the RPN 600, minimum value 63, average value 278.5 was calculated and periodic control of the liner and seal was identified as important. In addition, through hydrogen soakage and oxygen aging tests for non-metallic rubber products, physical test values that can be used as basic data were presented.
Keywords
FMEA(Failure Mode Effect and Analysis); RPN(Risk Priority Number); Hydrogen Soakage Test; Oxidative Aging Test;
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