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Influence de la résistance à la chaleur et de la perte de chaleur sur la performance d'un réfrigérateur à absorption à quatre réservoirs de chaleur avec transfert de chaleur.

The influence of heat resistance and heat leak on the performance of a four-heat-reservoir absorption refrigerator with heat transfer.

Auteurs : ZHENG T., CHEN L., SUN F., et al.

Type d'article : Article

Résumé

On the basis of an endoreversible absorption refrigeration cycle model with Newton's heat transfer law, an irreversible four-heat-reservoir cycle model with another linear heat transfer law is built by taking into account the heat leak and heat resistance losses. The fundamental optimal relation between the COP and the cooling load, the maximum COP and the corresponding cooling load, as well as the maximum cooling load and the corresponding COP of the cycle with another linear heat transfer law coupled to constant-temperature heat reservoirs are derived by using finite-time thermodynamics. The optimal distribution relation of the heat-transfer surface areas is also obtained. Moreover, the effects of the cycle parameters on the COP and the cooling load of the cycle are studied by detailed numerical examples. The results obtained herein are of importance to the optimal design and performance improvement of a four-heat-reservoir absorption refrigeration cycle.

Détails

  • Titre original : The influence of heat resistance and heat leak on the performance of a four-heat-reservoir absorption refrigerator with heat transfer.
  • Identifiant de la fiche : 2005-1223
  • Langues : Anglais
  • Source : International Journal of thermal Sciences - vol. 43 - n. 12
  • Date d'édition : 12/2004

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