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Corrélation semi-empirique du transfert de chaleur lors du refroidissement de gaz de dioxyde de carbone supercritique à l'intérieur de microcanaux.

Semi-empirical correlation of gas cooling heat transfer of supercritical carbon dioxide in microchannels.

Auteurs : KUANG G., OHADI M., DESSIATOUN S.

Type d'article : Article

Résumé

This paper provides a comprehensive review of existing correlations for supercritical heat transfer of CO2 in microchannels, as well as a comparison of these correlations with experimentally measured data. Based on the experimental data, a new semi-empirical correlation is developed to predict the gas cooling heat transfer coefficient of supercritical CO2 in microchannels, within an error of 15% for most (91%) of the presented experimental data that were obtained in an 11-port microchannel tube with an internal diameter of 0.79 mm and with a pressure range of 8 to 10 MPa and mass flux range of 300 to 1200 kg/m2.s.

Détails

  • Titre original : Semi-empirical correlation of gas cooling heat transfer of supercritical carbon dioxide in microchannels.
  • Identifiant de la fiche : 2009-1974
  • Langues : Anglais
  • Source : HVAC&R Research - vol. 14 - n. 6
  • Date d'édition : 11/2008

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