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A Study on the Behavior of Ambient Hydraulic Cycling Test for 70 MPa Type3 Hydrogen Composite Cylinder

70 MPa용 Type 3 수소 복합용기의 상온수압반복 거동에 관한 연구

  • Cho, Sung-Min (Institute of Gas Safety R&D, Korea Gas Safety Corporation) ;
  • Kim, Chang-Jong (Institute of Gas Safety R&D, Korea Gas Safety Corporation) ;
  • Kim, Young-Gyu (Institute of Gas Safety R&D, Korea Gas Safety Corporation)
  • 조성민 (한국가스안전공사 가스안전연구원) ;
  • 김창종 (한국가스안전공사 가스안전연구원) ;
  • 김영규 (한국가스안전공사 가스안전연구원)
  • Received : 2012.02.01
  • Accepted : 2012.02.24
  • Published : 2012.02.29

Abstract

The performance of the Type3 hydrogen composite cylinder whose pressure is 70 MPa using hydrostatic cycling test equipment was evaluted in this study. It also includes the finite element method analysis on the performance of the cylinder when the pressure is applied. As a result, cylinder body parts of the Type3 hydrogen composite cylinder, which draws attention with its safe status and the lightness, was ruptured first and the same result has been found out through the finite element method. The dome knuckle and the cylinder body were proved as the weakest parts since the cylinder body parts was expanded under the pressure.

본 연구에서는 수압반복시험 장비를 이용하여 70 MPa용 Type 3의 수소복합용기에 대한 거동과 용기내부에 압력이 가해졌을 때 용기 거동을 유한요소법으로 해석하였다. 그 결과, 안전성과 경량성으로 주목받고 있는 Type3 수소용기는 실린더부에서 파열이 먼저 시작되었으며, 유한요소해석 결과에서도 동일한 양상을 확인하였다. 시험결과로 용기내부에 압력이 가해짐에 따라 실린더 몸통부가 부풀어 올라 돔너클과 실린더 몸통부가 가장 취약함을 알 수 있었다.

Keywords

References

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