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Phase à bulles de l'absorption NH3-H2O : impacts d'agents tensio-actifs chimiques sur la performance en terme d'absorption.

The effect of chemical surfactants on the absorption performance during NH3/H2O bubble absorption process.

Auteurs : KIM J. K., JUNG J. Y., KIM J. H., et al.

Type d'article : Article, Article de la RIF

Résumé

The objectives of this paper are to visualize the bubble behaviour by the shadow graphic method, to examine the effect of surfactants on the bubble type absorption, and to find the optimal conditions to design highly effective compact absorber for the NH3/H2O absorption system. The initial concentrations of the NH3/H2O solution and the kinds and the concentrations of surfactants are considered as key parameters. By measuring the absorption rate for each condition, two effects of the addition of surfactants, the Marangoni and the barrier effect, are compared with each other. The results show that the addition of surfactant enhances the absorption performance up to 4.81 times. The experimental correlations of the effective absorption ratio for each surfactant, 2-ethyl-1-hexanol, n-octanol, and 2-octanol, are suggested within plus or minus 15, 10, and 10%, respectively.

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Format PDF

Pages : 170-177

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 : The effect of chemical surfactants on the absorption performance during NH3/H2O bubble absorption process.
  • Identifiant de la fiche : 2006-1205
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 29 - n. 2
  • Date d'édition : 03/2006

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