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Document IIF

Technologie des composants des microcanaux à appliquer aux systèmes à pompe à chaleur à absorption à ammoniac/eau.

Microchannel component technology for system-wide application in ammonia/water absorption heat pumps.

Auteurs : GARIMELLA S., DETERMAN M. D., MEACHAM J. M., et al.

Type d'article : Article, Article de la RIF

Résumé

A novel miniaturization technology for binary-fluid heat and mass exchange was developed and numerous components were fabricated for demonstration as different parts of an ammonia/water absorption heat pump. Short lengths of microchannel tubes are placed in an array, with several such arrays stacked vertically. The ammonia/water solution flows in falling film/droplet mode on the outside of the tubes while coupling fluid flows through the microchannels. Coupling fluid heat transfer coefficients are extremely high due to the use of microchannel tubes. Effective vapour-solution contact on the absorption side minimizes heat and mass transfer resistances. This concept addresses all the requirements for absorber design in an extremely compact geometry. The technology is suitable for almost all absorption heat pump components (absorbers, desorbers, condensers, rectifiers, and evaporators) and for a wide range of binary-fluid processes. The development of several components for absorption and desorption at different capacities using this technology is reported here.

Documents disponibles

Format PDF

Pages : 1184-1196

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 : Microchannel component technology for system-wide application in ammonia/water absorption heat pumps.
  • Identifiant de la fiche : 30000950
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 34 - n. 5
  • Date d'édition : 08/2011

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