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Etude théorique sur un nouveau cycle frigorifique à éjection à régénération.

A theoretical study of a novel regenerative ejector refrigeration cycle.

Auteurs : YU J., LI Y.

Type d'article : Article, Article de la RIF

Résumé

There has been a demand for developments of the ejector refrigeration systems using low grade thermal energy, such as solar energy and waste heat. In this paper, a novel regenerative ejector refrigeration cycle was described, which uses an auxiliary jet pump and a conventional regenerator to enhance the performance of the novel cycle. The theoretical analysis on the performance characteristics was carried out for the novel cycle with R-141b. Compared with the conventional cycle, the simulation results show that the COP of the novel cycle increases, respectively, by from 9.3 to 12.1% when generating temperature is in a range of 80-160°C, the condensing temperature is in a range of 35-45°C and the evaporating temperature is fixed at 10°C. Especially due to the enhanced regeneration with increasing the pump outlet pressure, the improvement of COP of the novel cycle is approached to 17.8% compared with that in the conventional cycle under the operating condition that generating temperature is 100°C, condensing temperature is 40°C and evaporating temperature is 10°C. Therefore, the characteristics of the novel cycle performance show its promise in using low grade thermal energy for the ejector refrigeration system.

Documents disponibles

Format PDF

Pages : 464-470

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 : A theoretical study of a novel regenerative ejector refrigeration cycle.
  • Identifiant de la fiche : 2007-0665
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 30 - n. 3
  • Date d'édition : 05/2007

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