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The interfacial turbulence in falling film absorption: effects of additives.

Author(s) : KIM K. J., BERMAN N. S., WOOD B. D.

Type of article: Article, IJR article

Summary

The results of vertical falling film experiments on the absorption of water vapour to aqueous lithium-bromide solutions with an additive, 2-ethyl-1-hexanol, are reported. During the absorption, the film becomes highly turbulent. Consequently, the heat and mass transfer is significantly enhanced by turbulent mixing. In addition, the instability mechanisms are detailed. In the vicinity of water absorption, surface-tension gradients due to the lower lithium-bromide concentration, the lower additive concentration, and the higher temperature at the interface, can favour instability of the falling film.

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Pages: 322-330

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Details

  • Original title: The interfacial turbulence in falling film absorption: effects of additives.
  • Record ID : 1997-1455
  • Languages: English
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 19 - n. 5
  • Publication date: 1996/06

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