A Numerical Study on Heat Transfer of External Surface of Ambient Evaporators

액화가스용 기화기의 외측 열전달에 대한 수치해석 연구

  • Seo, Dongmin (Dept. of Mech. Design. Eng., Graduate School, Chonbuk National Univ.) ;
  • Ko, Dong Guk (Dept. of Mech. Design. Eng., College of Eng., Chonbuk National Univ.) ;
  • Im, Ik-Tae (Dept. of Mech. Design. Eng., College of Eng., Chonbuk National Univ.)
  • 서동민 (전북대학교 대학원 기계설계공학과) ;
  • 고동국 (전북대학교 공과대학 기계설계공학부) ;
  • 임익태 (전북대학교 공과대학 기계설계공학부)
  • Received : 2017.03.21
  • Accepted : 2017.03.25
  • Published : 2017.03.31

Abstract

In this paper, natural convection around the ambient evaporator was numerically studied using commercial computational fluid dynamics software. From the simulations, temperature and velocity fields around the evaporator were found as a function of evaporator size and liquefied gas flow rate. The heat transfer coefficient at the external surface of the evaporator was also calculated from the simulation results. In order to give the heat transfer coefficient for various conditions, correlation between Rayleigh number and Nusselt number was proposed.

Keywords

References

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