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

  • 제23권2호
  • /
  • Pages.103-108
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  • 2014
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  • 2508-5093(pISSN)
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  • 2508-5107(eISSN)
한국생산제조학회 (The Korean Society of Manufacturing Technology Engineers)
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연성해석을 이용한 CNG 차량 압력 용기용 밸브의 안전성 평가

Safety Evaluation of a Cylinder Valve for Compressed Natural Gas Vehicle Pressure Vessels using Fluid-structure Interaction Analysis

  • 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)
  • 투고 : 2014.02.02
  • 심사 : 2014.04.08
  • 발행 : 2014.04.15
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초록

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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참고문헌

  1. Yeo, M. K., Park, T. J., Song, M. G., Kang, B. R., 2006, Flow Analysis of Check Valve for CNG Vehicle Fuel Supply Line, 2006 Proceedings of the KSME Spring Annual Meeting 159-164.
  2. United Nations Economic Commission for Europe, 2009, CNG Equipment-Part 1: Approval of specific components of motor vehicles using compressed natural gas (CNG) in their propulsion system, Part 2: Vehicles with regard to the installation of specific components of an approved type for the use of compressed natural gas (CNG) in their propulsion system Regulation, 110:2, United Nations.
  3. Kim, Y. S., Kim, L. H., Lee, J. H., 2009, A Study on Performance of Pressure Relief Devices of CNG Cylinder Valves, Journal of the Korean Institute of Gas 13:4 33-39.
  4. Park, K. T., Hwang, Y. G., Kang, B. R., 2007, Analysis of Thermal and Flow Characteristics of Regulator for CNG Vehicle, 2007 Proceedings of the KSPE Autumn Annual Meeting 383-384.
  5. Matweb, LLC. n.d., viewed by 29 January 2014, Material Property Data .