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Document IIF

Aperçu d'un démonstrateur de pompe à chaleur à haute température nouvellement installé, couplé à un système de stockage d'énergie thermique à haute température dans les mines.

Overview of a newly-installed high-temperature heat pump demonstrator coupled with high-temperature mine thermal energy storage.

Auteurs : PASSAMONTI A., BOMBARDA P., PACHAI A. C., KLEIN S., SCHNEIDER C., BRACKE R.

Type d'article : Article de la RIF

Résumé

The research aims to prove that renewable energy sources in the heating sector can enable the energy transition towards European and German CO2 reduction targets.
To do so, at the premises of the Fraunhofer IEG Institute in Bochum a demonstrator for high-temperature heat pumps (HTHPs), coupled with seasonal high-temperature mine thermal energy storage (MTES), was developed.
The goal is achieved by demonstrating the feasibility of the technology by connecting mine water present in a small flooded coal colliery (MTES) to solar parabolic trough collectors (SPTCs) and also to a HTHP system that serves the local district heating (DH) grid of Bochum south.
The MTES, with an estimated water volume of approximately 20000 m3 is employed as seasonal storage for a 500 kW HTHP system that can reach a supply temperature of 120°C, as needed by the existing DH grid when the ambient temperature is lower or equal to -10°C.
During the summer operation, the heat is injected into the MTES from the SPTCs to obtain a mine water temperature of 60°C; and in the winter operation, the heat is extracted through the HTHP until the mine water reaches the unheated temperature of 12°C at the end of the heating season.
A literature review of the main components of the plant, the description of the installed system parts and performed tests are reported, along with the results of the successfully executed tests.

Documents disponibles

Format PDF

Pages : 269-279

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 : Overview of a newly-installed high-temperature heat pump demonstrator coupled with high-temperature mine thermal energy storage.
  • Identifiant de la fiche : 30032807
  • Langues : Anglais
  • Sujet : Technologie
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 167
  • Date d'édition : 11/2024
  • DOI : http://dx.doi.org/10.1016/j.ijrefrig.2024.08.002

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