Partager

Document IIF

Performance d’une pompe à chaleur géothermique utilisant la méthode de détente directe pour l’approvisionnement en eau chaude.

Performance of ground source heat pump that uses direct expansion method for supplying hot water.

Numéro : pap. n. 647

Auteurs : NISHIZAWA R., TAKEDA T., ISHIGURO S., et al.

Résumé

This study investigates the performance of a ground source heat pump that uses the direct expansion method for hot water supply. The performance of cooling and heating/hot water supply systems of a ground source heat pump that uses the direct expansion method is better than that of the conventional ground source heat pump. Considering actual usage conditions, an experiment was conducted using R32 refrigerant. The length of the underground heat exchanger was 30 m. We investigated the maximum value of the amount of extracted heat from the ground by a single underground heat exchanger. The experiment was continued until the temperature of hot water in the tank reached approximately 65 °C. When the discharge amount of hot water was 200 L, the average Coefficient of Performance COP during the experiment was 2.4. When the discharge amount was 300 L, the average COP was 2.3.

Documents disponibles

Format PDF

Pages : 7

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 : Performance of ground source heat pump that uses direct expansion method for supplying hot water.
  • Identifiant de la fiche : 30026467
  • Langues : Anglais
  • Source : Proceedings of the 25th IIR International Congress of Refrigeration: Montréal , Canada, August 24-30, 2019.
  • Date d'édition : 24/08/2019
  • DOI : http://dx.doi.org/10.18462/iir.icr.2019.0647

Liens


Voir d'autres communications du même compte rendu (632)
Voir le compte rendu de la conférence

Indexation