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Optimisation de la performance d'un refroidisseur hybride alliant les cycles à compression de vapeur et les cycles à circulation naturelle.

Performance optimization of a hybrid cooler combining vapour compression and natural circulation cycles.

Auteurs : LEE S., KANG H., KIM Y.

Type d'article : Article, Article de la RIF

Résumé

A hybrid cooler combining vapour compression and natural circulation cycles was developed for the cooling of telecommunication equipment in the cabinet-type base station of mobile communication. This hybrid cooler normally operates in the vapour compression mode at high ambient temperatures, but works in the natural circulation mode at low ambient temperatures by the thermosiphon principle. The performance of the hybrid cooler was measured according to the refrigerant charge, outdoor temperature, heat exchanger geometry, and the vertical distance between the condenser and the evaporator. The optimum design conditions for these variables are discussed with respect to the performance of the hybrid cooler in both operating modes. The difference in the optimum refrigerant charge between the two operating modes was solved by installing a liquid receiver. The temperature difference between the indoor and ambient air was introduced as a control parameter for use when changing the operating mode.

Documents disponibles

Format PDF

Pages : 800-808

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 : Performance optimization of a hybrid cooler combining vapour compression and natural circulation cycles.
  • Identifiant de la fiche : 2009-1764
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 32 - n. 5
  • Date d'édition : 08/2009

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