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Une approche thermodynamique pour le calcul de la pression osmotique de fonctionnement des cycles à absorption à séparation par membrane entraînés par la pression.

A thermodynamic approach to calculating the operating osmotic pressure of pressure-driven membrane separation absorption cycles.

Auteurs : SU Y. H., RIFFAT S. B.

Type d'article : Article

Résumé

Membrane separation of absorption solutions has potential applications in refrigeration technology. Operating osmotic pressure is a basic parameter governing the design and evaluation of a membrane separation absorption system. The study presents a thermodynamic approach to calculate the osmotic pressure of an absorption solution using its density and vapour pressure. A correlation between osmotic pressure, density and vapour pressure has been deduced and a calculation example is given. Furthermore, combination of this correlation with the Clausius-Clapeyron equation has produced a simple and interesting result. For a membrane separation absorption cycle, the operating osmotic pressure required is related to the specific latent heat of refrigerant, operating temperatures and density of the absorption solution.

Détails

  • Titre original : A thermodynamic approach to calculating the operating osmotic pressure of pressure-driven membrane separation absorption cycles.
  • Identifiant de la fiche : 2005-1212
  • Langues : Anglais
  • Source : International Journal of thermal Sciences - vol. 43 - n. 12
  • Date d'édition : 12/2004

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