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Flow Boiling Heat Transfer in a Horizontal Rectangular Microchannel

수평 사각 마이크로채널 내에서의 유동 비등 열전달

  • 허철 (포항공과대학교 기계공학과) ;
  • 김무환 (포항공과대학교 기계공학과)
  • Published : 2006.11.01

Abstract

An experimental investigation was performed to study flow boiling heat transfer of deionized water in a microchannel. Measurement and evaluation of boiling heat transfer coefficients were carried out using a single horizontal rectangular microchannel having a hydraulic diameter of $100{\mu}m$. Tests were performed for mass fluxes of 90, 169 and 267 $kg/m^2$s and heat fluxes of 200-700 $kW/m^2$. Test results showed that the measured boiling heat transfer coefficients had no dependence on mass flux and vapor quality. Most macro-channel correlations of boiling heat transfer coefficient did not provide reliable predictions.

Keywords

References

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