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Document IIF

Améliorer les performances d’un système frigorifique au CO2 grâce au stockage d’énergie thermique froide pour le sous-refroidissement : application en supermarché.

Increasing the performances of a CO2 refrigeration system using cool thermal energy storage for subcooling: a supermarket application.

Numéro : pap. n. 726

Auteurs : BALLOT-MIGUET B., DEJARDINS G., QUARO B., et al.

Résumé

The electricity consumption of a supermarket refrigerating plant situated in the south of France has been measured during 8 months. A cool thermal energy storage (CTES) and a CO2 subcooler were added to the full CO2 refrigerating plant. The plant is described, as well as the charge/discharge/subcooling schedule strategy. The objectives of the work were to quantify the energy saving obtained thanks to the CTES and the subcooling. We obtained 23 kWh electricity saving and 2 k€ financial saving, which represents 6% of the annual electricity bill dedicated to medium temperature refrigeration production. The strategy depends on a lot of parameters (supermarket opening hours, outside temperature, electricity tariffs), and the tests showed it is important to review the control (schedule and set points).

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Format PDF

Pages : 8

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 : Increasing the performances of a CO2 refrigeration system using cool thermal energy storage for subcooling: a supermarket application.
  • Identifiant de la fiche : 30026025
  • 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.2019.0726

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