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Évaluation des performances énergétiques et économiques annuelles des systèmes frigorifiques de supermarché au R744 transcritique alimentés par un cycle organique de Rankine.

Annual energy and economic performance assessment of transcritical R744 supermarket refrigeration systems powered by an organic Rankine cycle.

Numéro : 0416

Auteurs : SENGUPTA A., GULLO P., DASGUPTA M. S., KHORSHIDI V.

Résumé

In this work the annual and economic performance of a transcritical R744 booster supermarket refrigeration system integrated with an organic Rankine cycle (ORC) was investigated. The results were compared to those of a conventional R744 booster supermarket refrigeration system (i.e. without ORC) in nine different locations worldwide. The benefits from overfeeding the medium temperature (MT) evaporators were also studied. It was found that the ORC can be used at outdoor temperatures above 27 °C. Also, it was observed that the proposed systems offer energy savings from 6 % to 16 % in warm and hot locations, such as New Delhi (India), Phoenix (USA), Bangkok (Thailand) and Riyadh (Saudi Arabia). The payback period of the additional investment associated with the ORC was equal to about 3.5 years in Athens (Greece) and less than 1.5 years in New Delhi, Phoenix, Bangkok and Riyadh.

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Format PDF

Pages : 12

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 : Annual energy and economic performance assessment of transcritical R744 supermarket refrigeration systems powered by an organic Rankine cycle.
  • Identifiant de la fiche : 30031410
  • Langues : Anglais
  • Sujet : Technologie
  • Source : Proceedings of the 26th IIR International Congress of Refrigeration: Paris , France, August 21-25, 2023.
  • Date d'édition : 21/08/2023
  • DOI : http://dx.doi.org/10.18462/iir.icr.2023.0416

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