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Effect of microscale heat and mass transfer on the nucleate boiling heat transfer of binary refrigerant mixtures.

Author(s) : KERN J., STEPHAN P.

Summary

A model to calculate the heat transfer coefficient is presented. It includes the microscopic phenomena, such as the adhesion pressure, surface tension, and interfacial thermal resistance as well as local variations of composition and liquid-vapour equilibrium and the Marangoni effect. As input parameters, the model needs only bubble site density, departure diameter, and the thermophysical properties. They can be determined from experiments of correlations. Calculated heat transfer coefficients of the binary mixture propane/n-butane are compared with experimental data. Good agreement is found.

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Details

  • Original title: Effect of microscale heat and mass transfer on the nucleate boiling heat transfer of binary refrigerant mixtures.
  • Record ID : 2000-1239
  • Languages: English
  • Source: 20th International Congress of Refrigeration: Refrigeration into the Third Millennium.
  • Publication date: 1999/09/19

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