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Prévision du transfert de chaleur pendant la condensation du dioxyde de carbone dans des canaux.

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

Auteurs : SHAH M. M.

Type d'article : Article

Résumé

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.

Détails

  • Titre original : Prediction of heat transfer during condensation of carbon dioxide in channels.
  • Identifiant de la fiche : 30017022
  • Langues : Anglais
  • Source : Applied Thermal Engineering - vol. 93
  • Date d'édition : 25/01/2016
  • DOI : http://dx.doi.org/10.1016/j.applthermaleng.2015.09.016

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