자동차용 수소 차단밸브의 열전달 특성에 대한 수치해석
Numerical Analysis of Heat Transfer Characteristics of Hydrogen Shut-off Valve for Automotive Vehicles
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초록
The hydrogen valve used in this study is intended to be applied to a automobile, and since there is a limit to the length of the stem, it is necessary to review the optimized stem, and for this, it is required to investigate the heat transfer characteristics of the hydrogen shut-off valve. For this, the temperature of the entire shut-off valve and especially the plunger and O-ring, which are key components in the solenoid valve driving the hydrogen shut-off valve, was calculated using the ANSYS-CFX flow analysis program. From the analysis results, the length of the stem capable of maintaining the design temperature of -40℃ or higher should be at least 139 mm, and it is judged that it should be 140 mm or more considering safety. When determining the stem length of the hydrogen blocking valve for automobiles, constraints on installation in automobiles should be considered.
Abstract
The hydrogen valve used in this study is intended to be applied to a automobile, and since there is a limit to the length of the stem, it is necessary to review the optimized stem, and for this, it is required to investigate the heat transfer characteristics of the hydrogen shut-off valve. For this, the temperature of the entire shut-off valve and especially the plunger and O-ring, which are key components in the solenoid valve driving the hydrogen shut-off valve, was calculated using the ANSYS-CFX flow analysis program. From the analysis results, the length of the stem capable of maintaining the design temperature of -40℃ or higher should be at least 139 mm, and it is judged that it should be 140 mm or more considering safety. When determining the stem length of the hydrogen blocking valve for automobiles, constraints on installation in automobiles should be considered.
참고문헌 (8)
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- H. R. Lee, "A Study on Temperature Characteristics of Automatic Valve for High Pressure Cylinder of FCV", Journal of the Korean Institute of Gas, 22(1), pp.1~8 (2018)
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- D. S. Kim, "Thermal Stress and Flow Analysis of a Cryogenic Ball Valve", Transactions of the Korea Fluid Power Systems Society, 3(4), pp.8~13 (2006)