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Comparaison des performances thèoriques d’un système frigorifique en auto-cascade biètagè utilisant des frigorigènes hydrocarbures.

Theoretical performance comparison for two-stage auto-cascade refrigeration system using hydrocarbon refrigerants.

Auteurs : HE Y., WU H., LIU Y., WANG T., WU X., CHENG C., JIN T.

Type d'article : Article de la RIF

Résumé

Auto-cascade refrigeration cycle (ARC) is widely used in low-temperature applications. The selection and proportion of refrigerant mixtures in an ARC system have a significant impact on the environment and system performance. In this study, the theoretical performance of a two-stage ARC system using R170/R600a, R170/R600, R1150/R600a, R1150/R600, and R23/R134a was compared. The results showed that, under certain working conditions in the ARC, an optimal refrigerant ratio maximized the COP of the system. At lower evaporator outlet temperatures or higher condenser outlet temperatures, the performance of the system using R170/R600a, R170/R600, R1150/R600a, and R1150/R600 offers advantages over that when using R23/R134a. Among these, R170/R600 afforded the best performance. Exergy analysis was also performed, and the exergy loss ratios of the heat exchanger in the R170/R600 and R23/R134a systems were the highest at 52.3% and 56.7%, respectively.

Documents disponibles

Format PDF

Pages : 27-36

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 : Theoretical performance comparison for two-stage auto-cascade refrigeration system using hydrocarbon refrigerants.
  • Identifiant de la fiche : 30030165
  • Langues : Anglais
  • Sujet : Technologie
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 142
  • Date d'édition : 10/2022
  • DOI : http://dx.doi.org/10.1016/j.ijrefrig.2022.06.008
  • Document disponible en consultation à la bibliothèque du siège de l'IIF uniquement.

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