Partager

Document IIF

Calcul rigoureux du point critique à partir de l'équation d'état pour un mélange ammoniac-eau.

A rigorous calculation of the critical point from the fundamental equation of state for the water + ammonia mixture.

Auteurs : AKASAKA R.

Type d'article : Article, Article de la RIF

Résumé

The critical point of the water + ammonia mixture was calculated directly from the Helmholtz free energy formulation. The calculation was performed according to the critical point criteria expressed in terms of the derivatives of the Helmholtz free energy with respect to mole numbers. Smooth critical locus linking between the critical points of pure water and ammonia was obtained. The critical locus showed a good agreement with the most reliable experimental data. Simple correlations for the critical temperature, pressure, and molar volume for a given composition were developed. The information obtained in this study is helpful for design and simulation of the cycles using the water + ammonia mixture as working fluid.

Documents disponibles

Format PDF

Pages : 95-101

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 : A rigorous calculation of the critical point from the fundamental equation of state for the water + ammonia mixture.
  • Identifiant de la fiche : 2009-0149
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 32 - n. 1
  • Date d'édition : 01/2009

Liens


Voir d'autres articles du même numéro (16)
Voir la source

Indexation