Partager

Document IIF

Caractéristiques de transfert de chaleur des échangeurs de chaleur à accumulation sous diverses conditions géométriques et de fonctionnement.

Heat transfer characteristics of accumulator heat exchangers under various geometric and operating conditions.

Auteurs : KANG H., CHO I., PARK H., et al.

Type d'article : Article, Article de la RIF

Résumé

To minimize the possibility of flash gas generation at the inlet of the expansion device in multi air-conditioners, an accumulator heat exchanger is usually adopted. In this study, the heat transfer rate and subcooling difference in an accumulator heat exchanger were measured under various operating and geometric conditions. The effect of the operating conditions on the performance of the accumulator heat exchanger was analyzed for R22, R134a, and R410a. The performance of the accumulator heat exchanger was also analyzed by varying diverse geometric parameters: the inner volume and the ratio of the diameter to height of the accumulator, and the diameter, length, and bending diameter of the inner heat exchanger. In addition, the flow of the refrigerant-oil mixture inside the accumulator was visualized. Based on the measured data, a dimensionless correlation for predicting the subcooling difference across the accumulator heat exchanger was developed.

Documents disponibles

Format PDF

Pages : 1077-1084

Disponible

  • Prix public

    20 €

  • Prix membre*

    Gratuit

* meilleur tarif applicable selon le type d'adhésion (voir le détail des avantages des adhésions individuelles et collectives)

Détails

  • Titre original : Heat transfer characteristics of accumulator heat exchangers under various geometric and operating conditions.
  • Identifiant de la fiche : 30000564
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 34 - n. 4
  • Date d'édition : 06/2011

Liens


Voir d'autres articles du même numéro (35)
Voir la source

Indexation