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Systèmes frigorifique : solutions pour l'évacuation de chaleur.

Heat rejection alternatives for refrigeration systems.

Auteurs : WELCH T.

Type d'article : Article, Étude de cas

Résumé

Heat rejection from refrigeration plants is traditionally through ambient air or water/ambient air, i.e. using air-cooled condensers, or water-cooled condensers coupled to dry coolers or cooling towers. The efficiency of the refrigeration plant is mainly a function of the ambient temperature - the higher the ambient temperature, the lower the efficiency. Unfortunately, this means that when maximum cooling is required, the refrigeration plant is operating at minimum efficiency. This article considers alternative sources for heat rejection and the possibility of utilizing these heat sources when refrigeration systems operate in a heating/heat pump mode, which will result in higher efficiency. The author describes the application of a new VRF system that can make use of this innovative technology in the present climate of working towards a reduction in the energy consumption of buildings.

Détails

  • Titre original : Heat rejection alternatives for refrigeration systems.
  • Identifiant de la fiche : 2004-1916
  • Langues : Anglais
  • Source : Build. Serv. J. - vol. 25 - n. 11
  • Date d'édition : 11/2003
  • Document disponible en consultation à la bibliothèque du siège de l'IIF uniquement.

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