Journal of the Korean Society of Manufacturing Technology Engineers (한국생산제조학회지)

The Korean Society of Manufacturing Technology Engineers (한국생산제조학회)
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Safety Evaluation of a Cylinder Valve for Compressed Natural Gas Vehicle Pressure Vessels using Fluid-structure Interaction Analysis

연성해석을 이용한 CNG 차량 압력 용기용 밸브의 안전성 평가

  • Lee, Hyo Ryeol (Intelligent Control and Automation in the School of Mechanical Engineering, Pusan National University) ;
  • Ahn, Jung Hwan (School of Mechanical Engineering, Pusan National University and ERC/NSDM) ;
  • Kim, Bok Man (YOUNGDO INC. Co., Ltd.) ;
  • Kim, Hwa Young (Research Institute of Mechanical Technology, Pusan National University)
  • Received : 2014.02.02
  • Accepted : 2014.04.08
  • Published : 2014.04.15
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Abstract

Growing concerns about environmental pollution have led to an increase in the demand for compressed natural gas (CNG) vehicles in recent years. CNG vehicles are equipped with a cylinder valve installed in a high-pressure vessel to control the CNG flow. The cylinder valve must meet high quality safety standards because the pressure vessel stores high-pressure CNG. Therefore, safety evaluation of the cylinder valve is necessary to ensure the safety of CNG vehicles. In this study, fluid-structure interaction analysis for the structural integrity of the cylinder valve were conducted using a commercial finite element analysis code(ANSYS WORKBENCH V14). The CFD analysis was performed using a steady-state technique according to the inlet and outlet pressures in order to predict the pressure distribution. Structural analysis was performed by a static structure technique at the maximum working pressure to evaluate the structural integrity of the cylinder valve. From the results, the safety factor of the valve component is between 1.57 and 21.5.

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References

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