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Safety Evaluation Based on Structural Analysis of Cylinder Valves for Fuel Cell Vehicles
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 Title & Authors
Safety Evaluation Based on Structural Analysis of Cylinder Valves for Fuel Cell Vehicles
Lee, Hyo Ryeol; Ahn, Jung Hwan; Shin, Jin Oh; Kim, Hwa Young;
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Green vehicles include electric vehicles, natural gas vehicles, and fuel cell vehicles (FCVs). In FCVs, pressure vessels have cylinder valves to control hydrogen flow. These valves should be of high quality in terms of safety because hydrogen is stored at ultra-high pressure in pressure vessels. Hence, safety evaluation of these valves is necessary to secure the safety of the FCV. A structural analysis of the cylinder valve was conducted in this study by using a commercial finite element analysis code. The results showed that the safety factor of valve component ranged 1.06-186.44. After categorizing, the stress components at critical points of the cylinder valve parts were evaluated using the corresponding allowable design criteria in the ASME code. The pressurization cycle test was performed as per the regulation to evaluate the safety of the valve.
Fuel cell vehicle;Cylinder valve;Safety evaluation;Structural analysis;
 Cited by
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