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Empirical equations to predict heat-transfer coefficients for condensation of binary-vapour mixtures.

Author(s) : FUJII T.

Summary

It is explained that the deterioration of the heat-transfer performance in condensation of binary-vapour mixtures is due to accumulation of the volatile component at the vapour-liquid interface. Experimental results compare well with theoretical predictions in the cases of condensation on a vertical cylinder, inside a vertical tube, in a plate-fin condenser with serrated-fins, inside a horizontal tube and in a tube bundle. However, the heat-transfer coefficients for the mixtures of alcohols and water and some combination of fluorocarbons are larger than the predicted values, due to the appearance of dropwise and streakwise condensate film.

Details

  • Original title: Empirical equations to predict heat-transfer coefficients for condensation of binary-vapour mixtures.
  • Record ID : 1995-0118
  • Languages: English
  • Source: Proceedings of international seminar on heat transfer, thermophysical properties and cycle performance of alternative refrigerants.
  • Publication date: 1993/12/06
  • Document available for consultation in the library of the IIR headquarters only.

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