Partager

Recommandé par l'IIF / Document IIF

Mélanges zéotropes dans les cycles de Rankine à basse température.

Zeotropic mixtures in low temperature Rankine cycles.

Numéro : 1164

Auteurs : SHAHROOZ M., LUNDQVIST P., NEKSÅ P.

Résumé

Compared to pure fluids, zeotropic mixtures have the potential to lower the irreversibilities in low temperature Rankine cycles by better temperature profile matching of the working fluid with the heat source/sink. However, having a gliding temperature does not guarantee performance boost over pure fluids, as many factors influence the exergy efficiency of the cycle. In this paper, different behaviors of binary zeotropic mixtures of natural refrigerants are analyzed with respect to their pure constituents in subcritical low temperature Rankine cycles. In one behavior type, the performance of the mixture falls between the performance of its pure constituents for all evaporator pressure range, and the mixture provides no benefit. However, some mixtures could provide performance boost in a specific evaporator range. Therefore, the maximum allowable evaporator pressure plays an important role in performance comparison of zeotropic mixtures with their pure constituents.

Documents disponibles

Zeotropic Mixtures in Low Temperature Rankine Cycles

Pages : 6

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 : Zeotropic mixtures in low temperature Rankine cycles.
  • Identifiant de la fiche : 30027937
  • Langues : Anglais
  • Sujet : Technologie
  • Source : 14th IIR-Gustav Lorentzen Conference on Natural Refrigerants (GL2020). Proceedings. Kyoto, Japon, December 7-9th 2020.
  • Date d'édition : 07/12/2020
  • DOI : http://dx.doi.org/10.18462/iir.gl.2020.1164

Liens


Voir d'autres communications du même compte rendu (120)
Voir le compte rendu de la conférence

Indexation