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Influence of oil on boiling heat transfer for film flow of refrigerant liquid.

[In Japanese. / En japonais.]

Author(s) : MATSUNAGA T., YOSHIDA S., MORI R., YONEMARU A.

Type of article: Article

Summary

Boiling heat transfer coefficient was measured for refrigerant liquid with oil contained. The liquid flowed in a film on a horizontal heating surface with the vapour flowing in the upper part of a rectangular duct at different liquid flow rates, vapour flow rates, heat fluxes and oil mass fractions. It was found that the reduction of the heat transfer coefficient with increasing oil mass fraction was attributed mainly to the rapid reduction of contribution by nucleate boiling, and that the ratio of the heat transfer rate by nucleate boiling to the total rate decreased as the oil mass fraction increased, because of much less reduction of the heat transfer rate by the forced convection.

Details

  • Original title: [In Japanese. / En japonais.]
  • Record ID : 1997-1395
  • Languages: Japanese
  • Source: Trans. JAR - vol. 13 - n. 2
  • Publication date: 1996
  • Document available for consultation in the library of the IIR headquarters only.

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