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Comparaison des performances des systèmes alternatifs au R404A à très faible GWP pour un congélateur commercial.

Performance comparison of very low GWP R404A alternatives in a commercial freezer application

Numéro : pap. n. 0236

Auteurs : SPLETZER S., MEDINA J., ROBERTS N.

Résumé

International efforts to reduce the global warming impact of refrigerants are advancing, as evidenced by the Kigali Agreement and European F-Gas regulations. R-404A is widely used for medium and low temperature refrigeration applications. Given the GWP of this HFC blend (GWP100 Year = 3,922 per AR4), lower GWP alternatives are required. For smaller self-contained equipment, several new very low GWP HFC-HFO blends are now under consideration, such as XL40 (R-454A), XL20 (R-454C), and R-455A. While mildy flammable, these products allow for significantly larger charge sizes than the highly flammable hydrocarbons.
Soft-optimized system testing was conducted to quantify the relative performance, to R-404A, of these alternatives using a commercially available two-door reach-in freezer. Energy consumption and other operating characteristics were monitored, as well as potential impacts on compressor functionality (e.g. lubrication).

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Format PDF

Pages : 8

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  • Prix public

    20 €

  • Prix membre*

    Gratuit

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Détails

  • Titre original : Performance comparison of very low GWP R404A alternatives in a commercial freezer application
  • Identifiant de la fiche : 30022414
  • Langues : Anglais
  • Sujet : Réglementation
  • Source : Compressors 2017: 9th International Conference on Compressors and Coolants.
  • Date d'édition : 06/09/2017
  • DOI : http://dx.doi.org/10.18462/iir.compr.2017.0236

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