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Comparaison théorique des alternatives à faible GWP pour diverses configurations frigorifiques prenant le R404A comme point de référence.

Theoretical comparison of low GWP alternatives for different refrigeration configurations taking R404A as baseline.

Auteurs : MOTA BABILONI A., NAVARRO-ESBRÍ J., BARRAGAN A., et al.

Type d'article : Article, Article de la RIF

Résumé

Six refrigerants are evaluated as low GWP replacements for R404A using different configurations, including two-stage system architectures. These refrigerants are selected according to similar characteristics to R404A, and they are the mid-term alternatives R407A and R407F, and the long-term alternatives: L40 and DR-7 (with very low GWP and low flammability), N40 and DR-33 (with low GWP and no flammability). In order to have a complete comparison range, various operating conditions are considered, covering low and medium evaporator temperatures and two levels of condensation temperatures. Configurations selected are presented and the equations used to simulate the expected performance are shown. From a given cooling capacity, volumetric flow rate and COP are compared, taking R404A as baseline. The most efficient alternatives are the low-flammable refrigerants, L40 and DR-7, and when no flammability is acceptable, N40 and DR-33 are also very good options.

Documents disponibles

Format PDF

Pages : 81-90

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 comparison of low GWP alternatives for different refrigeration configurations taking R404A as baseline.
  • Identifiant de la fiche : 30011726
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 44
  • Date d'édition : 08/2014

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