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Document IIF

Etude sur les simulations numériques et les expériences portant sur le transfert de masse dans un absorbeur à ammoniac-eau à bulles.

A study on numerical simulations and experiments for mass transfer in bubble mode absorber of ammonia and water.

Auteurs : LEE J. C., LEE K. B., CHUN B. H., et al.

Type d'article : Article, Article de la RIF

Résumé

An absorber is a major component in absorption refrigeration systems, and its performance greatly affects the overall system performance. In this study, both the numerical and experimental analyses in the absorption process of a bubble mode absorber were performed. Gas was injected into the bottom of the absorber at a constant solution flow rate. The region of gas absorption was estimated by both numerical and experimental analyses. A higher gas flow rate increases the region of gas absorption. As the temperature and concentration of the input solution decrease, the region of gas absorption decreases. In addition, the absorption performance of the counter-current flow was superior to that of co-current. Mathematical modelling equations were derived from the material balance for the gas and liquid phases based on neglecting the heat and mass transfer of water from liquid to gas phase. A comparison of the model simulation and experimental results showed similar values. This means that this numerical model can be applied for design of a bubble mode absorber.

Documents disponibles

Format PDF

Pages : 551-558

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 study on numerical simulations and experiments for mass transfer in bubble mode absorber of ammonia and water.
  • Identifiant de la fiche : 2003-2174
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 26 - n. 5
  • Date d'édition : 08/2003

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