대한기계학회논문집B (Transactions of the Korean Society of Mechanical Engineers B)

  • 제21권1호
  • /
  • Pages.24-35
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  • 1997
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  • 1226-4881(pISSN)
  • /
  • 2288-5324(eISSN)
대한기계학회 (The Korean Society of Mechanical Engineers)
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초기적으로 과냉각된 수직실린더 내부 물질의 상변화 과정

Phase change process of the initially subcooled material in a vertical cylinder

  • 백영렬 (한양대학교 대학원 기계공학과) ;
  • 이재헌 (한양대학교 대학원 기계공학과)
  • Baek, Yeong-Ryeol (Dept. of Mechanical Engineering, Graduate School of Hanyang University) ;
  • Lee, Jae-Heon (Dept. of Mechanical Engineering, Graduate School of Hanyang University)
  • 발행 : 1997.01.01
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초록

Melting process inside in a vertical cylinder has been investigated numerically to observe heat transfer characteristics in the latent heat storage vessel applied to the thermal storage system. The time-dependent boundary fitted coordinate system was introduced to overcome the difficulty caused by the moving boundary. The present results are in good agreement with the available previous data when the initial subcooling effect of the solid phase is not considered. It is found that the melting is promoted by the natural convection, but is delayed by the initial subcooling effect of the solid phase.

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