Journal of the Korean Society of Marine Environment & Safety (해양환경안전학회지)

The Korean Society of Marine Environment and safety (해양환경안전학회)
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The Elasto-Plastic Stress Analysis of Tube Expansion for Marine TEMA(Tubular Exchanger Manufactures Associations) Heat Exchangers

선박용 TEMA 열교환기의 전열관 확관시 탄소성 응력 해석

  • Kim, Ok-Sam (Dept. of Naval Architecture & Ocean Engineering, Chonnam National Univ.) ;
  • Park, Jong-Dai (Technical Division, Dae Kyung Machinery & Engineering Co. Ltd.)
  • 김옥삼 (전남대학교 수산해양대학 조선해양공학) ;
  • 박종대 (대경기계기술(주) 기술팀)
  • Received : 2011.05.02
  • Accepted : 2011.06.23
  • Published : 2011.06.30
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Abstract

Marine TEMA heat exchanger is the equipment to transfer the heat energy through both fluids that are enclosed separately by applying conduction and convection phenomena for a large vessels, Especially for heat exchanger working under the high temperature and high pressure, the expansion ratio should be taken into account other than under the low temperature and low pressure. This study was tried to find out the ideal expansion ratio through analyzing the elasto-plastic stress behavior of deformation while tubes are expanded with the finite element methods.

선박에 사용되는 TEMA 열교환기 전열관의 확관 공정에서 발생되는 탄소성 응력과 변형량의 거동을 유한요소법으로 해석하였다. 열교환기의 관판 구명의 홈 깊이와 롤러 익스팬더의 작용압력을 변화시켜 해석한 결과, 전열관의 관판 구멍의 홈 깊이가 커지면 탄소성 압축응력은 감소하였고, 롤러 익스팬더 압력이 높을수록 관판 구멍의 홈 모서리 부분의 탄소성 응력이 증가되었다.

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References

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