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Performances de sorption en condition de non équilibre pour des sorbants composites de paires de fluides actifs chlorures-ammoniac pour le froid.

Non-equilibrium sorption performances for composite sorbents of chlorides-ammonia working pairs for refrigeration.

Auteurs : ZHOU Z. S., WANG L. W., JIANG L., et al.

Type d'article : Article, Article de la RIF

Résumé

The sorption/ desorption characteristics under the non-equilibrium conditions are extremely important for the refrigeration. The experimental test unit is set up, and the p-T-x curves of different working pairs are tested under the non-equilibrium working conditions. The results show that non-equilibrium sorption/ desorption processes are related with dual variables rather than a single variable. Then we tested the isobaric sorption/ desorption processes of chlorides. Results show that the hysteresis phenomena are related with the desorption enthalpy. Sorption/ desorption dynamic models are studied. For sorption process the model is in accord with D-A equation, but for the desorption process both D-A equation and Spinner model should be considered. The Arrhenius equation is used to fit the relation between reaction heat and desorption hysteresis. The results show that the non-equilibrium equations fit the refrigeration performance well, whereas the theoretical equilibrium curves have big error.

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Format PDF

Pages : 60-68

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 : Non-equilibrium sorption performances for composite sorbents of chlorides-ammonia working pairs for refrigeration.
  • Identifiant de la fiche : 30017258
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 65
  • Date d'édition : 05/2016

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