Partager

Système de pompe à chaleur pour le refroidissement du sol à des fins de confort et la production simultanée d’eau chaude sanitaire.

A heat pump system for simultaneous comfort floor cooling and domestic hot water.

Numéro : 0573

Auteurs : ZHU T., LIANG J., THORSEN J. E., GUDMUNDSSON O., ROHLFS W., ELMEGAARD B.

Résumé

The benefit of ultra-low temperature district heating systems (ULTDH) is their low supply temperature, which increases the heat generation efficiency and significantly reduces the heat loss of the DH network. The present study proposed a dual-effect heat pump system, which in combination of the ULTDH network, fulfills both, comfort floor cooling/heating and domestic hot water (DHW) demands. Depending on the operation the ULTDH system is used as a heat source, DHW preparation, or as a heat sink in cooling operation mode. The application potential of the proposed heat pump unit used for comfort floor cooling has been validated. The cooling experimental tests were performed under designed conditions with fixed heat source temperature (22 ℃) and different heat sink temperatures, simulating either DHW preparation or delivering the surplus heat to the ULTDH network. The coefficient of performance (COP) of the dual-effect heat pump system varied from 2.22 to 2.81 in cooling mode, and from 3.0 to 3.4 in heating

Documents disponibles

Format PDF

Pages : 11

Disponible

Gratuit

Télécharger

Détails

  • Titre original : A heat pump system for simultaneous comfort floor cooling and domestic hot water.
  • Identifiant de la fiche : 30033277
  • Langues : Anglais
  • Source : 14th IEA Heat Pump Conference 2023, Chicago, Illinois.
  • Date d'édition : 05/2023

Liens


Voir d'autres communications du même compte rendu (166)
Voir le compte rendu de la conférence

Indexation