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Document IIF

Optimisation de la conception d'un système de refroidissement à déshydratant à refroidissement évaporatif indirect.

Optimisation of a desiccant cooling system design with indirect evaporative cooler.

Auteurs : GOLDSWORTHY M., WHITE S.

Type d'article : Article, Article de la RIF

Résumé

Solar desiccant-based air conditioning has the potential to significantly reduce cost and/or greenhouse gas emissions associated with cooling of buildings. Parasitic energy consumption for the operation of supply fans has been identified as a major hindrance to achieving these savings. The cooling performance is governed by the trade-off between supplying larger flow-rates of cool air or lower flow-rates of cold air. The performance of a combined solid desiccant-indirect evaporative cooler system is analysed by solving the heat and mass transfer equations for both components simultaneously. Focus is placed on varying the desiccant wheel supply/regeneration and indirect cooler secondary/primary air-flow ratios. Results show that for an ambient reference condition, and 70°C regeneration temperature, a supply/regeneration flow ratio of 0.67 and an indirect cooler secondary/primary flow ratio of 0.3 gives the best performance with COP(e) higher than 20. The proposed cooling system thus has potential to achieve substantial energy and greenhouse gas emission savings.

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Format PDF

Pages : pp. 148-158

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 : Optimisation of a desiccant cooling system design with indirect evaporative cooler.
  • Identifiant de la fiche : 2010-1555
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 34 - n. 1
  • Date d'édition : 01/2011

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