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Etude expérimentale sur l'amélioration de la performance d'un refroidisseur à quatre adsorbeurs par l'utilisation de la récupération de chaleur et de masse.

Experimental study on performance improvement of a four-bed adsorption chiller by using heat and mass recovery.

Auteurs : NG K. C., WANG X., LIM Y. S., et al.

Type d'article : Article

Résumé

The efficacy of a four-bed adsorption chiller has been studied experimentally with respect to a simple but yet effective passive heat and mass recovery schemes. It substantially improves the adsorption chiller COP by as much as 30% over a broad range of cycle time with a wide heat source, coolant and chilled water temperatures. Two schemes have been considered here: Firstly, only the mass recovery is achieved by pressure equalization between the concomitantly cooled adsorber and heated desorber, exploiting the intrinsic vapor-uptake potential by pressure swing that remains in the adsorbent at the end of a half-cycle. Secondly, when both the heat and mass recovery schemes are employed at a rating point of maximum cooling capacity, the chiller COP could increase further to as much as 48%. These improvements are performed without additional hardware changes to the adsorption chiller. [Reprinted with permission from Elsevier. Copyright, 2006].

Détails

  • Titre original : Experimental study on performance improvement of a four-bed adsorption chiller by using heat and mass recovery.
  • Identifiant de la fiche : 2007-0179
  • Langues : Anglais
  • Source : International Journal of Heat and Mass Transfer - vol. 49 - n. 19-20
  • Date d'édition : 09/2006

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