Partager

Document IIF

Analyse d'un nouveau cycle frigorifique de type Carnot fondé sur la composition isotherme de vapeur.

Analysis of a novel refrigeration Carnot-type cycle based on isothermal vapour compression.

Auteurs : TOUBLANC C., CLAUSSE M.

Type d'article : Article, Article de la RIF

Résumé

A novel Carnot-type cycle is proposed to reach high performances for sub-critical and trans-critical applications. Two natural fluids, ammonia and carbon dioxide each one corresponding to one of the application, were chosen. Compared to conventional cycles, the Carnot-type cycle leads to COP increase by 4-70% depending on the application. For the most suitable case (CO2), a simpler design resulting from a trade-off between complexity and performances still exhibits high performances [92.5% of COP(Carnot) vs. 95.4% for Carnot-type cycle]. Compared to conventional one, this simpler design appears to be more sensitive to the expander efficiency but still achieves higher performances: 80 vs. 50% of COP(Carnot). The impact of the compression cooling efficiency was explored too. With a temperature pinch equal to 20 K, the performances are still better than those of the conventional one (+21% of COP) despite a decrease by 24% of the COP.

Documents disponibles

Format PDF

Pages : 1190-1197

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 : Analysis of a novel refrigeration Carnot-type cycle based on isothermal vapour compression.
  • Identifiant de la fiche : 2008-2451
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 31 - n. 7
  • Date d'édition : 11/2008

Liens


Voir d'autres articles du même numéro (18)
Voir la source

Indexation