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Modélisation des propriétés thermodynamiques du mélange ammoniac-eau par trois approches différentes.

Modelling of the thermodynamic properties of the water-ammonia mixture by three different approaches.

Auteurs : MEJBRI K., BELLAGI A.

Type d'article : Article, Article de la RIF

Résumé

This paper deals with the modelling of the thermodynamic properties of the water-ammonia mixture. Three different approaches are formulated and compared. The first is an empirical approach based on a free enthalpy model of the mixture considered as the resultant of the properties of its pure components and of an excess term corresponding to the deviation to the ideal solution concept. Secondly, a semi-empirical approach based on the PATEL and TEJA cubic equation of state is considered. Finally, a theoretical approach formulated as PC-SAFT (perturbed chain statistical associating fluid theory) equation of state is treated. A comparison of these three methods proves the superiority of PC-SAFT in predicting and extrapolating the thermodynamic properties of the water-ammonia system up to very high temperatures and pressures.

Documents disponibles

Format PDF

Pages : 211-218

Disponible

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    20 €

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    Gratuit

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Détails

  • Titre original : Modelling of the thermodynamic properties of the water-ammonia mixture by three different approaches.
  • Identifiant de la fiche : 2006-1207
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 29 - n. 2
  • Date d'édition : 03/2006

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