Partager

Document IIF

Refroidissement d’un bâtiment 24 heures sur 24 grâce à un système d’adsorption intégré à des matériaux à changement de phase.

24-hour cooling of a building by a PCM integrated adsorption system.

Auteurs : POSHTIRI A. H., JAFARI A.

Type d'article : Article, Article de la RIF

Résumé

This study presents a theoretical investigation into integration of phase change materials (PCMs) with an adsorption cooling system in order to provide 24-hour air conditioning. A latent heat storage unit containing PCM is used to store solar energy during the daytime, and at nighttime the conserved thermal energy and an auxiliary heater drive the adsorption chiller.The system adopts a cooling channel to reduce the air temperature.The air flow to the channel is provided by use of fans and at different fresh air ratios (FR). Room temperature and the room’s maximum cooling demand for which thermal comfort can be achieved are estimated. In addition, the effects of different parameters on room temperature and solar fraction are studied. It is indicated that an optimum ACH value exists for which the room temperature is the lowest. Also, rise of ACH and FR decrease solar fraction and increase auxiliary energy consumption. It is found that when ACH = 4 and FR = 20%, daily solar fraction is 0.76 and 217 MJ of auxiliary energy is required during the 24 hours. Under this condition, thermal comfort is achieved for a maximum cooling demand of 4000W during the 24 hours.

Documents disponibles

Format PDF

Pages : 57-75

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 : 24-hour cooling of a building by a PCM integrated adsorption system.
  • Identifiant de la fiche : 30022309
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 79
  • Date d'édition : 07/2017
  • DOI : http://dx.doi.org/10.1016/j.ijrefrig.2017.03.025

Liens


Voir d'autres articles du même numéro (20)
Voir la source

Indexation