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Étude expérimentale de la performance de chauffage d'un compresseur à spirale à injection de gaz fonctionnant au R32, au R1234yf et à leur mélange à 20wt%/80wt% à basse température ambiante.

Experimental investigation on heating performance of gas-injected scroll compressor using R32, R1234yf and their 20wt%/80wt% mixture under low ambient temperature.

Auteurs : XU S., FAN X., MA G.

Type d'article : Article, Article de la RIF

Résumé

In this paper, an integrated gas-injected scroll compressor heat pump system using R1234yf, R32 and its binary mixtures as working fluid was developed and their heating performances under low ambient temperature were quantitatively evaluated. A composite test system consisting of second-refrigerant calorimeter and water-cooled condenser was used to test the system working performance. The condensing temperature, evaporating temperature, compressor power input and other variables were analyzed to evaluate the system heating capability and energy efficiency. Test results showed that the R1234yf system can run at an evaporating temperature of -25°C. R1234yf/R32 mixture can run at an evaporating temperature of -20°C and it has the highest heating COP value among other refrigerants; R1234yf/R32 gas injection system provided very significant performance improvements for heating performance, compared with no gas injection, the heating capacity and heating COP can improve 16%~20% and 13%~16%, respectively.

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Format PDF

Pages : 286-292

Disponible

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    20 €

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Détails

  • Titre original : Experimental investigation on heating performance of gas-injected scroll compressor using R32, R1234yf and their 20wt%/80wt% mixture under low ambient temperature.
  • Identifiant de la fiche : 30021945
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 75
  • Date d'édition : 03/2017
  • DOI : http://dx.doi.org/10.1016/j.ijrefrig.2017.01.010

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