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Une technologie innovante pour adapter les systèmes frigorifiques de supermarché au R-744 transcritique à la hausse des températures.

A novel technology to adapt transcritical R744 supermarket refrigeration systems to rising temperatures.

Numéro : 1131

Auteurs : GULLO P., KORSHIDI V., FUNDER-KRISTENSEN T., GURUCHETHAN A. M., MORID ZADEH M., FOLIACO B.

Résumé

In this work a novel technology to adapt transcritical R744 supermarket refrigeration systems to warm and hot climates as well as to rising temperatures was proposed and exhaustively investigated. The novel solution consisted of a booster device (increasing the transcritical fluid R744 pressure) followed by an air-cooled gas cooler and located between the conventional air-cooled condenser/gas cooler and high-pressure expansion valve. The results obtained revealed energy savings by from 2.31 % to 2.91 % in Seville (Spain) and from 4.64 % to 5.73 % in New Delhi (India). To further increase the energy benefits from the proposed technology, the use of an expander replacing the high-pressure expansion valve was also considered. As a consequence, energy savings by 7.80 % in Seville and 14.44 % in New Delhi with an additional investment recovery time of about 3 years in both of the selected locations were assessed. 

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 : A novel technology to adapt transcritical R744 supermarket refrigeration systems to rising temperatures.
  • Identifiant de la fiche : 30034180
  • Langues : Anglais
  • Sujet : Technologie
  • Source : 1st IIR International Conference on Refrigeration Adapting to Rising Temperatures
  • Date d'édition : 08/2025
  • DOI : http://dx.doi.org/10.18462/iir.adaptation.2024.1131

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