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Performances thermodynamiques et d’inflammabilité d’un nouveau mélange à faible PRP comme alternative au R404A.

Thermodynamic and flammable performance of a new low GWP blend to R404A.

Numéro : 1022

Auteurs : ZHANG L., YANG Z., LV Z., ZHAI R., DENG Q

Résumé

Current alternatives to R404A are either refrigerants with higher GWP from 1200 to 2000 or mildly flammable refrigerants with a charge limit of 1.2 kg. Therefore, non-flammable alternatives to R404A with lower GWP value need to be developed. In this study, a new non-flammable blend, named RTJU-Z (GWP of 794), has been proposed to directly replace R404A in cold storage system with only minor modifications. The flammability and thermodynamic performance of RTJU-Z is analysed. The thermodynamic performance of RTJU-Z is compared with the current alternatives to R404A (R407H, R442A, R449A and R452A) at different temperature. The results show that RTJU-Z is non-flammable and has a higher average value of COP than that of R404A by 9.43%. The average refrigeration capacity of RTJU-Z is slightly higher than that of R404A by 2.04%. RTJU-Z as a class A1 refrigerant can be directly used as an R404A alternative in cold storage system.

Documents disponibles

Format PDF

Pages : 8

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 : Thermodynamic and flammable performance of a new low GWP blend to R404A.
  • Identifiant de la fiche : 30028789
  • Langues : Anglais
  • Sujet : Alternatives aux HFC
  • Source : 2nd IIR Conference on HFO Refrigerants and Low GWP Blends
  • Date d'édition : 06/2021
  • DOI : http://dx.doi.org/10.18462/iir.HFO.2021.1022

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