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Condensation in smooth horizontal tubes.

Author(s) : DOBSON M. K., CHATO J. C.

Type of article: Article

Summary

The refrigerants tested were R12, R22, R134a and near azeotropic blends R32/R125. The study focused primarily on measurement and prediction of condensing heat transfer coefficients and the relationship between heat transfer coefficients and two-phase flow regimes. Stratified, wavy, wavy annular, annular, annular mist and slug flows were observed. True mist flow without a stable wall film was not observed during condensation tests. The various flow regimes were divided into two broad categories of gravity-dominated and shear-dominated flows. Heat transfer correlations that were developed for each of these flow regimes successfully predicted data from the present study and from several other sources.

Details

  • Original title: Condensation in smooth horizontal tubes.
  • Record ID : 1999-0757
  • Languages: English
  • Source: J. Heat Transf. - vol. 120 - n. 1
  • Publication date: 1998/02
  • Document available for consultation in the library of the IIR headquarters only.

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