Partager

Document IIF

Optimisation de la conception des évaporateurs au NH3 pour les pompes à chaleur destinées au chauffage urbain.

Design optimization of NH3 evaporators for heat pumps in district heating.

Numéro : 0037

Auteurs : FILIPPINI S., MERLO U., DEMURTAS D., MACCHI E.

Résumé

Efficient district heating and cooling (DHC) systems can play a key role in achieving the objectives of the European Union. District heating systems contribute substantially to the reduction of primary energy supplies, carbon emissions and costs.
Heat pumps are key system components when it comes to providing sustainable heat and integration of energy systems in a climate-friendly future. Heat pumps allow the use of various accessible heat sources such as ambient air, seawater, groundwater or waste heat from the industry.
Currently, the use of heat pumps for district heating is in a critical phase. Efficiency and reliability are key to the diffusion of these systems on a larger scale.
LU-VE participated from the beginning in the development of specific large air evaporators for district heating application, using NH3 as working fluid.
The paper describes in the first part the main issue characterizing the design of a large field of evaporators for heat pump application in district heating plants.
The second part of the paper illustrates the R&D activity that enables the latest product evolution, capable of lowering the energy consumption of the evaporators by 21%.
A new ventilation concept has been developed and dedicated experimental tests have been performed in order to validate the design. Air distribution has been improved as well as the aerodynamic configuration of the ventilation housing.

Documents disponibles

Format PDF

Pages : 10 p.

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 : Design optimization of NH3 evaporators for heat pumps in district heating.
  • Identifiant de la fiche : 30029671
  • Langues : Anglais
  • Sujet : Technologie
  • Source : 15th IIR-Gustav Lorentzen Conference on Natural Refrigerants (GL2022). Proceedings. Trondheim, Norway, June 13-15th 2022.
  • Date d'édition : 13/06/2022
  • DOI : http://dx.doi.org/10.18462/iir.gl2022.0037
  • Document disponible en consultation à la bibliothèque du siège de l'IIF uniquement.

Liens


Voir d'autres communications du même compte rendu (169)
Voir le compte rendu de la conférence

Indexation