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Amélioration de l'absorption des nanofluides binaires à l'aide de nanoparticules et d'agents tensioactifs.

Absorption performance enhancement by nanoparticles and chemical surfactants in binary nanofluids.

Auteurs : KIM J. K., JUNG J. Y., KANG Y. T.

Type d'article : Article, Article de la RIF

Résumé

The objectives of this paper are to visualize the bubble behaviour during the NH3/H2O absorption process with chemical surfactant and nanoparticles and to study the effect of nanoparticles and surfactants on the absorption characteristics. Binary nanofluid which means binary mixture with nano-sized particles is tested to apply nanofluid to the absorption system. Cu, CuO and Al2O3 nanoparticles are added into NH3/H2O solution to make the binary nanofluids, and 2-ethyl-1-hexanol, n-octanol and 2-octanol are used as the surfactants. The concentration of ammonia in the basefluid, that of nano-particles in the nanofluid, and that of surfactants in the nanofluid are considered as the key parameters. The results show that the addition of surfactants and nano-particles improves the absorption performance up to 5.32 times. It can be concluded that the addition of both surfactants and nano-particles enhances significantly the absorption performance during the ammonia bubble absorption process.

Documents disponibles

Format PDF

Pages : 50-57

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 : Absorption performance enhancement by nanoparticles and chemical surfactants in binary nanofluids.
  • Identifiant de la fiche : 2006-2899
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 30 - n. 1
  • Date d'édition : 01/2007

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