Partager

Amélioration de la performance énergétique d'un système de refroidisseur refroidi à l'air grâce à l'amélioration de la brumisation utilisée pour le pré-refroidissement.

Improved energy performance of air-cooled chiller system with mist pre-cooling mist improvement on air-cooled chillers.

Auteurs : YU F. W., CHAN K. T.

Type d'article : Article

Résumé

This study investigates how to lower the dry bulb temperature of outdoor air via mist pre-cooling to enhance the coefficient of performance (COP) of an air-cooled chiller system. Based on standard chiller models in commercial simulation software DOE-2E, a modified model was made to analyse how the chiller COP varies under two different condensing temperature controls with mist pre-cooling of air entering the air-cooled condenser. Drawing on the model calibrated by manufacturer and operating data, it was estimated that around 18% decrease in the electricity consumption could be achieved by coupling floating condensing temperature control with an optimal mist generation rate, with regard to a chiller system serving a hotel in a sub-tropical climate. Remarks have been made on how optimal mist control can be implemented to maximize electricity savings while reducing surplus mist carrying over the condenser coil. [Reprinted with permission of Elsevier. Copyright 2011.]

Détails

  • Titre original : Improved energy performance of air-cooled chiller system with mist pre-cooling mist improvement on air-cooled chillers.
  • Identifiant de la fiche : 30003596
  • Langues : Anglais
  • Source : Applied Thermal Engineering - vol. 31 - n. 4
  • Date d'édition : 03/2011
  • DOI : http://dx.doi.org/10.1016/j.applthermaleng.2010.10.012

Liens


Voir d'autres articles du même numéro (6)
Voir la source

Indexation