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Document IIF

Une simulation numérique de l'absorption de vapeur par le film tombant ondulant d'une solution aqueuse de LiBr.

A numerical simulation of steam absorption by wavy falling film of LiBr aqueous solution.

Auteurs : MIYARA A., ISLAM M. A

Résumé

In an absorption chiller, the performance of the absorber governs the system performance. Falling films of an absorbent are used in many systems. The absorption of vapour occurs at the vapour-liquid interface and its absorption rate is affected by the interface behavior. A numerical simulation of steam absorption by LiBr aqueous solution is carried out in this study. Since diffusion coefficient of water into LiBr aqueous solution is very small, convection effects induced by surface waves enhance the absorption. The numerical simulation shows the transport of water absorbed at the interface into LiBr aqueous solution, where a wavy film of the LiBr aqueous solution is falling on a vertical cooling wall. Distributions of temperature and concentration in the film are given.

Documents disponibles

Format PDF

Pages : ICR07-B1-1245

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 numerical simulation of steam absorption by wavy falling film of LiBr aqueous solution.
  • Identifiant de la fiche : 2008-0162
  • Langues : Anglais
  • Source : ICR 2007. Refrigeration Creates the Future. Proceedings of the 22nd IIR International Congress of Refrigeration.
  • Date d'édition : 21/08/2007

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