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Document IIF

Gestion de la demande par le stockage de chaleur latente dans des systèmes CVC couplés à des unités de froid commercial.

Demand side management through latent thermal storage in HVAC systems coupled with commercial refrigeration units.

Numéro : 0136

Auteurs : CORTELLA G., TOFFOLETTI G., LIBRALATO M., D'AGARO P.

Résumé

The electrical energy demand of an HVAC plant can be better managed by using latent thermal energy storage when time-of-use tariffs or peak tariffs are in force, in a view of Demand Side Management of the electrical grid. Nonetheless, air conditioning systems show a marked use of electrical power during the day, and the peak in the cooling load mostly corresponds to the lowest performance of the chiller due to outdoor conditions, thus giving rise to a marked peak in electricity use.
An HVAC plant of a supermarket is supplied with an ice thermal energy storage, with the main aim of shaving the peak in electrical power use. The latent thermal storage is charged at night-time by employing the CO2 commercial refrigeration system of the supermarket, which is considerably part-loaded during the shop closing time. During daytime, the thermal storage can be operated in replacement of or in parallel to a reversible heat pump, operating as a water chiller for air conditioning. The same heat pump operates at wintertime for heating purposes, in parallel with heat recovery from the CO2 commercial refrigeration plant.
A model of the whole system is presented, and possible solutions are shown for demand side management purposes.

Documents disponibles

Format PDF

Pages : 9 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 : Demand side management through latent thermal storage in HVAC systems coupled with commercial refrigeration units.
  • Identifiant de la fiche : 30029732
  • 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.gl2022.0136
  • Document disponible en consultation à la bibliothèque du siège de l'IIF uniquement.

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