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Des frigorigènes au PRP inférieur à celui du R404A dans les compresseurs de type économiseurs.

Lower GWP refrigerants compared to R404A for economizer style compressors.

Numéro : pap. 1390

Auteurs : SJOHOLM L., KLEINBOEHL C., MA Y. C.

Résumé

Two economizer style compressors are explored, where the high pressure liquid is sub-cooled with a heat exchanger, while the evaporation side in the heat exchanger is connected to an intermediate compressor port. The intermediate port has a higher pressure than the suction pressure and a lower pressure than the discharge pressure. The two compressors being studied are of the scroll and screw type. One of the compressors is an open shaft compressor and the other one is a hermetic compressor. Both compressors have been modeled based on test data with R404A and at conditions that correspond to TRU (Transport Refrigeration Unit) applications. The compressor models have been used to explore lower GWP refrigerants such as R407A, R407F, N-40a, DR7 and DR33. For both compressors, each alternative refrigerant is compared against the baseline refrigerant R404A. This paper examines discharge temperature, capacity and "capacity/input power" (or COP, coefficient of performance) relative to the R404A baseline.

Documents disponibles

Format PDF

Pages : 7 p.

Disponible

  • Prix public

    20 €

  • Prix membre*

    15 €

* meilleur tarif applicable selon le type d'adhésion (voir le détail des avantages des adhésions individuelles et collectives)

Détails

  • Titre original : Lower GWP refrigerants compared to R404A for economizer style compressors.
  • Identifiant de la fiche : 30014112
  • Langues : Anglais
  • Source : 2014 Purdue Conferences. 22nd International Compressor Engineering Conference at Purdue.
  • Date d'édition : 14/07/2014

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