Partager

Document IIF

Étude expérimentale de la performance d'une pompe à chaleur haute température à injection de vapeur.

Experimental study on the performance of a vapor injection high temperature heat pump.

Auteurs : HE Y., CAO F., JIN L., et al.

Type d'article : Article, Article de la RIF

Résumé

In this study, a vapor injection technique was applied in a high temperature heat pump (HTHP) for providing hot water at temperatures up to 88?°C. A prototype HTHP system with economizer vapor injection was developed and its performance was experimentally investigated under various operating conditions. Results showed that the vapor injection pressure had a large effect on heating capacity and on refrigerant temperature at the inlet of the electronic expansion valve (EEV). As the injection pressure increased from 0.82 to 0.98?MPa, the vapor injection flow ratio increased from 7.3% to 22.61% and the heating capacity increased by 7%. The system COP did not show significant change although the COP trend showed an optimal value for the injection pressure. The refrigerant temperature at the EEV inlet showed a subcooling of more than 16?°C under all studied conditions, which improved the EEV operating reliability.

Documents disponibles

Format PDF

Pages : 1-8

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 : Experimental study on the performance of a vapor injection high temperature heat pump.
  • Identifiant de la fiche : 30016076
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 60
  • Date d'édition : 12/2015

Liens


Voir d'autres articles du même numéro (26)
Voir la source

Indexation