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Évaluations de la performance de systèmes frigorifiques avec suralimentation au CO2 transcritique et cascade au R290/R744 pour différentes villes en Turquie.

The performance evaluation of CO2 transcritical booster and R290/R744 cascade refrigeration systems for different cities in Turkey.

Numéro : pap. n. 0025

Auteurs : ÖZYURT A., SINAR U., YILMAZ D., et al.

Résumé

CO2 as a natural and fully environmentally friendly refrigerant has become more preferable in refrigeration systems in recent years. Since its critical temperature is much lower than that of other refrigerants. It is mostly used in cascade refrigerant systems as a low temperature cycle fluid. On the other hand, CO2 may be used in single-stage transcritical refrigeration systems. In this study, performance of two natural refrigerant solutions, trans-critical booster CO2 refrigeration system with ejector and a R290/CO2 cascade refrigeration system are examined theoretically by using EES software. Operating conditions are determined to represent different climatic regions in Turkey using summer dry bulb temperatures of various cities. The trans-critical and the cascade system are assumed to operate at two different evaporation temperatures of -10°C and -25°C,respectively. The overall EER values for each system with respect to the same ambient and evaporation conditions are compared and evaluated. Finally, performance of both systems has been compared and the appropriate solution for each city has been suggested.

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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 : The performance evaluation of CO2 transcritical booster and R290/R744 cascade refrigeration systems for different cities in Turkey.
  • Identifiant de la fiche : 30021793
  • Langues : Anglais
  • Source : 7th Conference on Ammonia and CO2 Refrigeration Technology. Proceedings: Ohrid, North Macedonia, May 11-13, 2017.
  • Date d'édition : 11/05/2017
  • DOI : http://dx.doi.org/10.18462/iir.nh3-co2.2017.0025
  • Document disponible en consultation à la bibliothèque du siège de l'IIF uniquement.

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