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Mechanism of Marangoni convection induced by addition of a surfactant in lithium-bromide aqueous solutions.

Author(s) : NISHIMURA N., NOMURA T., IYOTA H., et al.

Summary

Surface tension induced Marangoni-Benard convection occurring at the surface of a lithium-bromide aqueous solution with the addition of a small amount of surfactant was observed in order to investigate the mechanism of absorption enhancement by surfactants. Experiments were performed varying the initial surfactant's concentration from 0 to 200 ppm and the liquid layer thickness from 2 to 5 mm. Pentagonal or hexagonal cell patterns were clearly observed at the surface and these cells instantly grew in size from small to large. Thereafter, large-scale chaotic eddies were induced at the surface.

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Details

  • Original title: Mechanism of Marangoni convection induced by addition of a surfactant in lithium-bromide aqueous solutions.
  • Record ID : 2000-1318
  • Languages: English
  • Source: 20th International Congress of Refrigeration: Refrigeration into the Third Millennium.
  • Publication date: 1999/09/19

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