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Document IIF

Analyse économique d’un refroidisseur à air avec système de rejet thermique avancé.

Economic analysis of air-cooled chiller with advanced heat rejection.

Auteurs : YU F. W., HO W. T., CHAN K. T., et al.

Type d'article : Article, Article de la RIF

Résumé

This study analyses economic benefits of an air-cooled chiller retrofitted with advanced heat rejection features. The rated capacity was 282?kW and operating variables were monitored comprehensively to develop random forest models. The top five variables to ensure model accuracy were identified. Electricity savings were predicted by the models with 3 advanced operating modes: variable speed control for condenser fans with an adjustable condensing temperature (the VSD mode), mist precooling of condenser air (the Mist mode), and their composites (the VSD?+?Mist mode). The integrated part load value (IPLV) was 2.90, 3.31, 2.93 and 3.34 for the normal mode, VSD mode, Mist mode, and the VSD?+?Mist mode, respectively. For a chiller system serving an office building, the VSD mode gave the highest economic benefit with a simple payback of 10.83 yrs and an internal rate of return of 4.38% over a 15-yr life cycle.

Documents disponibles

Format PDF

Pages : 54-64

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 : Economic analysis of air-cooled chiller with advanced heat rejection.
  • Identifiant de la fiche : 30019833
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 73
  • Date d'édition : 01/2017

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