Korean Journal of Air-Conditioning and Refrigeration Engineering (설비공학논문집)

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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Flow Boiling of R-123/Oil Mixture in a Plain Tube Bundle

평활관군 내 R-123/오일의 흐름비등

  • Lee, Jin-Wook (Graduate School of Mechanical Engineering, University of Incheon) ;
  • Lee, Jae-Ho (Graduate School of Mechanical Engineering, University of Incheon) ;
  • Kim, Nae-Hyun (Department of Mechanical Engineering, University of Incheon)
  • Received : 2010.06.05
  • Published : 2010.10.10
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Abstract

The effect of oil on flow boiling of R-123 in a plain tube bundles was experimentally investigated for a range of quality and heat flux. It is shown that the heat transfer coefficient decreased as the oil concentration increased. Comparison with the previous pool boiling data reveals that the reduction of heat transfer coefficient by oil is more pronounced in pool boiling, and the difference increased with the increase of oil concentration and heat flux. Within the experimental range, the variation of mass flux or quality has negligible effect on the heat transfer coefficient.

Keywords

References

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