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Etude sur un nouveau refroidisseur à adsorption à gel de silice-eau. I. Conception et prévision de la performance.

Study of a novel silica gel-water adsorption chiller. I. Design and performance prediction.

Auteurs : WANG D. C., XIA Z. Z., WU J. Y., et al.

Type d'article : Article, Article de la RIF

Résumé

A novel silica gel-water adsorption chiller is designed and its performance is predicted. This adsorption chiller includes three vacuum chambers: two adsorption/desorption (or evaporation/condensation) vacuum chambers and one heat pipe working vacuum chamber as the evaporator. One adsorber, one condenser and one evaporator are housed in the same chamber to constitute an adsorption/desorption unit. The evaporators of two adsorption/desorption units are combined together by a heat-pipe heat exchanger to make continuous refrigerating capacity. In this chiller, a vacuum valve is installed between the two adsorption/desorption vacuum chambers to increase its performance especially when the chiller is driven by a low temperature heat source. The operating reliability of the chiller rises greatly because of using fewer valves. Furthermore, the performance of the chiller is predicted. The simulated results show that the refrigerating capacity is more than 10 kW under a typical working condition with the hot water temperature of 85 °C, the cooling water temperature of 31 °C and the chilled water inlet temperature of 15 °C. The COP exceeds 0.5 even under a heat source temperature of 65 °C. (See also this Bulletin, reference 2005-2558.)

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Pages : 1073-1083

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Détails

  • Titre original : Study of a novel silica gel-water adsorption chiller. I. Design and performance prediction.
  • Identifiant de la fiche : 2005-2555
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 28 - n. 7
  • Date d'édition : 11/2005

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