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Document IIF

Comportement diphasique des frigorigènes dans les raccords en T.

Two-phase split of refrigerants at a T-junction.

Auteurs : TAE S. J., CHO K.

Type d'article : Article, Article de la RIF

Résumé

The present study experimentally investigated the two-phase flow split of refrigerants at a T-junction. As geometric parameters, the direction of the inlet or branch tube and the tube diameter ratio of branch to inlet tube were chosen. As inlet flow parameters, the inlet mass flux and quality were varied from 100 to 700 kg/m2.s and from 0.1 to 0.9, respectively, for the condition of distribution header of a multi-pass evaporator in the general refrigeration system. All experiments were performed for R22, R134a, and R410A. The measured data were compared with the values predicted by the models developed for air-water or steam-water mixture in the literature. The authors propose a modified model for application to the reduced T-junction and vertical orientation of tubes. Among the geometric parameters, the branch tube direction showed the largest sensitivity to the mass flow rate ratio for the gas phase, while the inlet quality showed the largest sensitivity to the mass flow rate ratio among the inlet flow parameters.

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Format PDF

Pages : 1128-1137

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Détails

  • Titre original : Two-phase split of refrigerants at a T-junction.
  • Identifiant de la fiche : 2006-2202
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 29 - n. 7
  • Date d'édition : 11/2006

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