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Document IIF

Analyse énergétique de systèmes de surpression mécaniques au CO2 sous-refroidis dédiés et intégrés pour les applications de supermarché.

Energy analysis of dedicated and integrated mechanical subcooled CO2 boosters for supermarket applications.

Auteurs : CATALÁN-GIL J., LLOPIS R., SÁNCHEZ D., et al.

Type d'article : Article, Article de la RIF

Résumé

Energy improvements offered by dedicated and integrated mechanical subcooling systems in CO2 booster systems for supermarket applications are analyzed here through the use of thermodynamic models close to reality. Using a reference supermarket with 41?kW and 140?kW thermal loads at low and medium temperature, respectively, and considering as state-of-the-art system the CO2 booster with parallel compressor and flash gas by-pass, it has been concluded that both systems allow to reduce energy consumption. However, its operation is highly dependent on environmental conditions. The dedicated mechanical subcooling system offers annual energy reductions for tempered places from 1.5% to 2.9%, for warm between 2.9% and 3.4% and for hot from 3.0% to 5.1%. The integrated subcooling system obtains reductions between 3.1% and 4.0% for cold regions, from 1.4% to 2.9% for tempered, from 2.9% to 3.4% for warm and from 1.3% to 2.4% for hot regions.

Documents disponibles

Format PDF

Pages : 11-23

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 : Energy analysis of dedicated and integrated mechanical subcooled CO2 boosters for supermarket applications.
  • Identifiant de la fiche : 30025729
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 101
  • Date d'édition : 05/2019
  • DOI : http://dx.doi.org/10.1016/j.ijrefrig.2019.01.034

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