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Modelling of condensation heat transfer of pure refrigerants in micro-fin tubes.

Author(s) : CHAMRA L. M., MAGO P. J., TAN M. O., et al.

Type of article: Article

Summary

A new semi-empirical condensation model for heat transfer coefficient of pure refrigerants flowing inside micro-fin tubes is presented. The new model is developed based on a theoretical analysis of turbulent film condensation inside smooth tubes. Several modifications have been implemented in the original smooth-tube model to account for the heat transfer enhancement effects due to the presence of micro-fins on the internal wall surface. The new condensation model is compared with a set of around 400 experimental data points. The comparison shows that the new model is capable of producing consistent prediction results with a mean absolute deviation less than 20% for most of the available data sets.

Details

  • Original title: Modelling of condensation heat transfer of pure refrigerants in micro-fin tubes.
  • Record ID : 2005-1694
  • Languages: English
  • Source: International Journal of Heat and Mass Transfer - vol. 48 - n. 7
  • Publication date: 2005/03

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