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Absorption de vapeur par une solution aqueuse de LiBr à l'intérieur de tubes lisses verticaux.

Vapour absorption by LiBr aqueous solution in vertical smooth tubes.

Auteurs : TAKAMATSU H., YAMASHIRO H., TAKATA N., et al.

Type d'article : Article, Article de la RIF

Résumé

Heat and mass transfer in a falling film vertical in-tube absorber was studied experimentally with LiBr aqueous solution. The results presented include the effect of solution flow rate, solution subcooling and cooling water temperature on absorption in a smooth copper tube of 16.05 mm internal diameter and 400 mm long. The experimental data of the previous report for a 1200-mm-long tube were also re-examined and compared. It was demonstrated by the observation of the flow in the tube that the breakdown of the liquid film into rivulets leads to deterioration in heat and mass transfer at a lower film Reynolds number or in longer tubes. An attempt to evaluate physically acceptable heat and mass transfer coefficients that are defined with estimated temperature and concentration at the vapour-liquid interface was also presented.

Documents disponibles

Format PDF

Pages : 659-666

Disponible

  • Prix public

    20 €

  • Prix membre*

    Gratuit

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Détails

  • Titre original : Vapour absorption by LiBr aqueous solution in vertical smooth tubes.
  • Identifiant de la fiche : 2004-0074
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 26 - n. 6
  • Date d'édition : 09/2003

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