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Performance de l'éjecteur d'un système frigorifique à éjecteur sans pompe fonctionnant à l'énergie thermique solaire.

Ejector performance of a pump-less ejector refrigeration system driven by solar thermal energy.

Numéro : pap. 2412

Auteurs : DAI Z., HE Y., HUANG Y., et al.

Résumé

Ejector refrigeration is considered as one of the three main ways of refrigeration and air-conditioning to utilize low-grade energy. Use of pump-less technology to eliminate the mechanical circulating pump of the working fluid from condenser to generator in ejector refrigeration systems can meet the minimal maintenance requirement and increase operation lifetime of the system. In this study, a pump-less ejector refrigeration system driven by solar thermal energy, using R134a as refrigerant is proposed. The prototype is constructed and the performance of the ejector which will be used in a pump-less system is investigated experimentally. The design condition of the pump-less ejector refrigeration system is: evaporation temperature of 15°C, condensation temperature of 45°C, generation temperature of 80°C, and refrigeration capacity of 1.5 kW. The influence of the evaporation temperature, condensation temperature and generation temperature on the performance of the ejector is studied. Results show that the performance of the tested ejector is not good, and suggestions for improving the performance of the ejector are made.

Documents disponibles

Format PDF

Pages : 9 p.

Disponible

  • Prix public

    20 €

  • Prix membre*

    15 €

* meilleur tarif applicable selon le type d'adhésion (voir le détail des avantages des adhésions individuelles et collectives)

Détails

  • Titre original : Ejector performance of a pump-less ejector refrigeration system driven by solar thermal energy.
  • Identifiant de la fiche : 30006611
  • Langues : Anglais
  • Source : 2012 Purdue Conferences. 14th International Refrigeration and Air-Conditioning Conference at Purdue.
  • Date d'édition : 16/07/2012

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