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Analyse thermodynamique d'un système hybride à pompe à chaleur associé à un collecteur photovoltaïque.

Thermodynamic analysis on a hybrid photovoltaic thermal collector combined heat pump system.

Auteurs : XU G. Y., ZHANG X. S., DENG S. M.

Résumé

A combination of photovoltaic cells with a solar thermal collector, commonly called hybrid photovoltaic/thermal (PV/T) system, converts solar energy into electricity and heat simultaneously. In this paper, a novel hybrid photovoltaic/thermal collector combined heat pump (PV/T-HP) system was developed. The specially designed PV/T collector, also acts as evaporator of heat pump, is a sheet-and-tube solar panel with photovoltaic modules laminated onto the surface. Absorbing heat from both solar radiation and ambient air, refrigerant (R-22) expanded directly in the PV/T collector, and then released heat in condenser to heat water. Meanwhile, the PV cells working on a lower temperature got a higher electricity output. Energy efficiency and exergy efficiency of the PV/T-HP were analysed with the first and second law of thermodynamics. Furthermore, optimum working temperatures of PV/T collector on various weather conditions were obtained which supply guidance for system design and operating control. Compared with water-type PV/T system, PV/T-HP system achieves a better performance.

Documents disponibles

Format PDF

Pages : ICR07-E2-397

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 : Thermodynamic analysis on a hybrid photovoltaic thermal collector combined heat pump system.
  • Identifiant de la fiche : 2008-0890
  • Langues : Anglais
  • Sujet : Généralités
  • Source : ICR 2007. Refrigeration Creates the Future. Proceedings of the 22nd IIR International Congress of Refrigeration.
  • Date d'édition : 21/08/2007

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