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Étude expérimentale de frigorigènes à faible PRP dans un refroidisseur : performance du système et rendement du compresseur. 

Experimental study of low-GWP refrigerants in a chiller: system performance and compressor efficiencies.

Numéro : 0640

Auteurs : AZZOLIN M., CONTE R., BERNARDINELLO S., DEL COL D.

Résumé

The F-gas Regulation No 517/2014 and the Kigali Amendment to the Montreal Protocol on Substances that Deplete the Ozone Layer are two actions taken to reduce the use of hydrofluorocarbon (HFC) refrigerants with high Global Warming Potential (GWP). Among the HFCs, R134a, which has a GWP100years equal to 1530, is recognized in the IPCC as a major contributor and its atmospheric abundances increased by 71 % from 2011 to 2019. This work presents an experimental study on drop-in replacements to R134a in a water-to-water chiller equipped with large scroll compressors. Several low-GWP alternatives to R134a have been considered: R1234ze(E), R516A, R450A and R513A. The experimental tests have been conducted by fixing the inlet/outlet water temperatures in the chiller rather than fixing the condensing and evaporating temperature. The results in terms of cooling capacity and coefficient of performance are analysed and compared against those obtained with R134a. Moreover, the volumetric efficiency and the global isentropic efficiency of the compressor are presented and models to predict the compressor performance are assessed.

Documents disponibles

Format PDF

Pages : 11

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 : Experimental study of low-GWP refrigerants in a chiller: system performance and compressor efficiencies.
  • Identifiant de la fiche : 30031814
  • Langues : Anglais
  • Sujet : Technologie, Alternatives aux HFC
  • 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.2023.0640

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