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Cycle frigorifique polyétagé à lits multiples et à adsorption : réduction de la température de la source de chaleur motrice.

Multi-bed multi-stage adsorption refrigeration cycle -reducing driving heat source temperature.

Auteurs : ALAM K. C. A., AKAHIRA A., HAMAMOTO Y., et al.

Résumé

The study aims at designing a multi-bed multi-stage adsorption chiller that can be driven by waste heat at near ambient temperature. The chiller is designed such a way that it can be switched into different modes depending on the driving heat source temperature. Stage regeneration techniques have been applied to operate the chiller by a relatively low temperature heat source. Driving heat source temperature is validated by simulated data and the performances obtained from different modes are compared. In terms of COP, the chiller shows best performance in conventional single-stage mode for driving heat source temperature greater than 60°C, two-stage mode for driving source temperature between 42 and 60°C, and three-stage mode for driving source temperature less than 42°C. In terms of cooling capacity, it shows the best performance in single-stage mode for heat source temperature greater than 70°C. The mass recovery process in single-stage mode is also examined. It is seen that the mass recovery process improve cooling capacity significantly especially for the low regenerating temperature region.

Détails

  • Titre original : Multi-bed multi-stage adsorption refrigeration cycle -reducing driving heat source temperature.
  • Identifiant de la fiche : 2006-2357
  • Langues : Anglais
  • Source : Green breeze from Asia: frontiers of refrigerants, heat transfer and system.. ACRA-2002. Proceedings of the Asian conference on refrigeration and air conditioning.
  • Date d'édition : 04/12/2002

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