Document IIF

Dioxyde de carbone : transfert de chaleur lors de l'évaporation, chute de pression et dèveloppement d'une corrélation ( + errata).

Characteristics of evaporative heat transfer and pressure drop of carbon dioxide and correlation development ( + errata).

Auteurs : YOON S. H., CHO E. S., HWANG Y. W., et al.

Type d'article : Article, Article de la RIF

Résumé

Carbon dioxide is a natural refrigerant that has attracted considerable attention as an alternative refrigerant due to its excellent thermophysical properties. In this study, the transcritical refrigeration cycle using carbon dioxide is of great interest, and the evaporation process is investigated by experiment and analysis. This paper presents the measured heat transfer coefficients and pressure drop during the evaporation of carbon dioxide in a horizontal smooth tube. The test section was made of a seamless stainless steel tube with an inner diameter of 7.53 mm, and length of 5 m. Heat was provided by a direct heating method to the test section. Experiments were conducted at saturation temperatures of -4 to 20 °C, heat fluxes, and mass fluxes. A comparison of different heat transfer correlations applicable to evaporation of carbon dioxide has been made. Based on the experiments for the evaporation heat transfer, a useful correlation was developed. A comparison of different heat transfer correlations applicable to the evaporation of carbon dioxide was made. Based on the experiments for the evaporation heat transfer, a useful correlation was developed.

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Format PDF

Pages : 111-119

Disponible

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    20 €

  • Prix membre*

    Gratuit

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Détails

  • Titre original : Characteristics of evaporative heat transfer and pressure drop of carbon dioxide and correlation development ( + errata).
  • Identifiant de la fiche : 2004-1033
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 27 - n. 2
  • Date d'édition : 03/2004

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