Journal of Power System Engineering (동력기계공학회지)

The Korean Society for Power System Engineering (한국동력기계공학회)
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Forced convective Heat Transfer in rectangular channel

사각 채널에서의 강제대류 열전달

  • Lim, T.W. (Division of Marine System Engineering Korea Maritime University) ;
  • You, S.S. (Division of Mechanical & Energy Systems Engineering, Korea Maritime University)
  • 임태우 (한국해양대학교 기관공학부) ;
  • 유삼상 (한국해양대학교 기계.에너지시스템공 학부)
  • Received : 2012.03.23
  • Accepted : 2012.06.11
  • Published : 2012.08.31
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Abstract

This paper performed experimental research in order to measure boiling heat transfer coefficient of water in microchannel with hydraulic diameter of $500{\mu}m$. Tests were conducted within the ranges of heat fluxes from 100 to 400 kW/$m^2$, vapor qualities from 0 to 0.2, and mass fluxes of 200, 400, and 600 kg/$m^2s$. From the experimental results, it was found that flow boiling heat transfer coefficient is not dependent on mass flux or vapor quality, but instead on heat flux to a certain degree. The measured data of heat transfer are compared to a few available correlations proposed for mini-channels. Among them, Sun and Mishima's correlation is found to predict the present data well, within the mean absolute error of 17.84%.

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References

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