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Vapour absorption by LiBr aqueous solution in vertical smooth tubes.

Author(s) : TAKAMATSU H., YAMASHIRO H., TAKATA N., et al.

Type of article: Article, IJR article

Summary

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.

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Pages: 659-666

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Details

  • Original title: Vapour absorption by LiBr aqueous solution in vertical smooth tubes.
  • Record ID : 2004-0074
  • Languages: English
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 26 - n. 6
  • Publication date: 2003/09

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