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Analyse thermoéconomique de différents systèmes frigorifiques pour des applications avec un écart de température important entre condenseur et évaporateur, utilisant des frigorigènes alternatifs.

Thermoeconomic analysis of different refrigeration systems for high temperature lift using alternative refrigerants.

Auteurs : KUMAR MANDAL B., ROY R., EMANI M. S.

Résumé

An attempt has been made to analyze different types of refrigeration system for high temperature lift applications using various alternative refrigerants. In the present work, a mathematical model has been developed for the simulation work on cascade refrigeration system using four different refrigerant pairs. A twostage refrigeration system with flash tank has been analyzed using the alternatives of R12 and compared the energetic and exergetic performances. Also, a refrigeration system with dedicated subcooler has been numerically analyzed from the energetic, exergetic and economic point of view. It is found that refrigerants R170 in the low temperature circuit and R161 in high temperature circuit are capable of replacing R41 and R404A respectively in cascade refrigeration as alternative. It is also noted that refrigerants R1234yf and R1234ze can be a promising alternatives for R12 and R134a in the two-stage refrigeration system with flash tank. The simulation work on the refrigeration system using dedicated subcooler shows that the use of the proposed system is more beneficial when the temperature lift is high.

Documents disponibles

Format PDF

Pages : 18

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 : Thermoeconomic analysis of different refrigeration systems for high temperature lift using alternative refrigerants.
  • Identifiant de la fiche : 30024800
  • Langues : Anglais
  • Sujet : Alternatives aux HFC
  • Source : Proceedings of the International Conference on Emerging Technologies for Sustainable and Intelligent HVAC&R Systems, Kolkata, July 27-28 2018.
  • Date d'édition : 27/07/2018

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