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Évaluation théorique de la performance énergétique de différentes configurations [frigorifiques] monoétagées à compression de vapeur utilisant R1234yf et R1234ze(E) comme fluides actifs.

Theoretical energy performance evaluation of different single stage vapour compression refrigeration configurations using R1234yf and R1234ze(E) as working fluids.

Auteurs : MOLÉS F., NAVARRO-ESBRÍ J., PERIS B., et al.

Type d'article : Article, Article de la RIF

Résumé

R1234yf and R1234ze(E) have been proposed as alternatives for R134a in order to work with low GWP refrigerants, but this replacement results generally in a decrease of the performance. For this reason, it is interesting to explore ways to improve the system performance using these refrigerants. In this paper, a comparative study in terms of energy performance of different single stage vapour compression configurations using R1234yf and R1234ze(E) as working fluids has been carried out. The most efficient configuration is the one which uses an expander or an ejector as expansion device. On the other hand, using an internal heat exchanger in a cycle which replaces the expansion valve by an expander or an ejector could produce a detrimental effect on the COP. However, for all the configurations the introduction of an internal heat exchanger produces a significant increment on the cooling capacity.

Documents disponibles

Format PDF

Pages : 141-150

Disponible

  • Prix public

    20 €

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    Gratuit

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Détails

  • Titre original : Theoretical energy performance evaluation of different single stage vapour compression refrigeration configurations using R1234yf and R1234ze(E) as working fluids.
  • Identifiant de la fiche : 30011731
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 44
  • Date d'édition : 08/2014

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