Partager

Document IIF

Amélioration de la performance d’une installation d’eau glacée en utilisant des stratégies simples de régulation des rejets thermiques.

Performance improvement of a large chilled-water plant by using simple heat rejection control strategies.

Auteurs : DALIBARD A., BIESINGER A., COTRADO M., et al.

Type d'article : Article, Article de la RIF

Résumé

Energy efficient cooling systems are urgently required in order to face the increasing cooling demand of the building and industry sectors and comply with the ambitious EU target of greenhouse gas emission reductions. The present work aims to show that simple heat rejection control strategies can lead to significant energy savings. Different approaches of sequencing the operation of several cooling towers and a method to adapt the cooling water temperature set-point to the actual ambient conditions are proposed. These strategies are first investigated theoretically for an existing chilled-water plant of 13.7 MW installed cooling capacity. Up to 20% energy savings are theoretically possible depending on the used control strategy and the weather conditions. A variable cooling water set-point as a function of the wet bulb temperature allows for the most significant savings. After implementation of this measure in the existing cooling plant, 2 years monitoring results show that the overall system efficiency of the chilled water plant could be increased by 15% compared to the initial status confirming the results of the theoretical study.

Documents disponibles

Format PDF

Pages : 1-10

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 improvement of a large chilled-water plant by using simple heat rejection control strategies.
  • Identifiant de la fiche : 30024994
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 94
  • Date d'édition : 10/2018
  • DOI : http://dx.doi.org/10.1016/j.ijrefrig.2018.07.020

Liens


Voir d'autres articles du même numéro (19)
Voir la source

Indexation