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Comparaison expérimentale du remplacement immédiat du R516A par le R134a pour les applications frigorifiques eau/eau.

Experimental drop-in comparison of R516A and R134a for water-to-water refrigeration applications.

Numéro : 250

Auteurs : SHAKER AL-SAYYAB A. K., NAVARRO-ESBRÍ J., BARRAGÁN-CERVERA A., MOTA BABILONI A.

Résumé

R134a is still one of the most used hydrofluorocarbons (HFCs) in refrigeration and air conditioning applications. However, it should be phased out in the coming years because of its high global warming potential (GWP). The refrigeration sector needs to find as soon as possible technically suitable alternative refrigerants. R516A is a promising azeotropic mixture at medium-low temperatures. The operational and energetic performance of the lower GWP refrigerant R516A is analysed as a drop-in replacement to R134a. Experimental measurements are taken from in vapour compression test rig at several steady-state refrigeration conditions. The evaporating temperature is -5 ºC, -10 ºC and -15 ºC, and is combined with 32.5 ºC condensing temperature, considering the effect of the internal heat exchanger (IHX) effectiveness. R516A presents a good performance in terms of refrigerating effect and cooling capacity. R516A coefficient of performance (COP) is higher than R134a at the evaporating temperature of -15 ºC.

Documents disponibles

Format PDF

Pages : 6

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 : Experimental drop-in comparison of R516A and R134a for water-to-water refrigeration applications.
  • Identifiant de la fiche : 30030547
  • Langues : Anglais
  • Source : XI Congreso Ibérico y IX Congreso Iberoamericano de Ciencias y Técnicas del Frío, CYTEF 2022.
  • Date d'édition : 04/2022

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