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Prediction of heat transfer during condensation of carbon dioxide in channels.

Author(s) : SHAH M. M.

Type of article: Article

Summary

There is currently great interest in the use of CO2 as a refrigerant and hence a reliable method for predicting heat transfer during condensation in channels is needed. This research was done to evaluate the applicability of available predictive techniques. A number of correlations, including three very recently published correlations, were compared with a database that included all test data that could be found. These include single tubes and multichannels with diameters of 0.15–22.1?mm, evaporation temperatures of -25?°C to 29?°C, mass flux of 50–1000?kg/m2s, and vapor qualities of 0.02–0.97. One of the general correlations gave good agreement for mass flux up to 300?kg/m2?s. None of the other correlations gave good agreement with data at any flow rate.

Details

  • Original title: Prediction of heat transfer during condensation of carbon dioxide in channels.
  • Record ID : 30017022
  • Languages: English
  • Source: Applied Thermal Engineering - vol. 93
  • Publication date: 2016/01/25
  • DOI: http://dx.doi.org/10.1016/j.applthermaleng.2015.09.016

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