Maorangoni convection during steam absorption into aqueous libr solution with surfactant

Mitsunori Hozawa, Mitsuo Inoue, Jun Sato, Takao Tsukada, Nobuyuki Imaishi

Research output: Contribution to journalArticle

96 Citations (Scopus)

Abstract

The Marangoni convection during steam absorption into aqueous LiBr solution with a small amount of surfactant was observed by Schlieren photography, and the surface tension of the absorbing solution was measured to investigate the mechanism of the convection. Also, a numerical simulation of the Marangoni convection was carried out. It is found experimentally that the surface tension of LiBr solution with surfactant decreases with increasing LiBr concentration and that the Marangoni convection in this system is not essentially induced by the presence of surfactant islands on the surface of the solution as proposed by the previous workers, but is in accordance with the general criterion of Marangoni instability. The calculated results could simulate qualitatively the initiation and growth of convection in this system.

Original languageEnglish
Pages (from-to)209-214
Number of pages6
JournalJOURNAL of CHEMICAL ENGINEERING of JAPAN
Volume24
Issue number2
DOIs
Publication statusPublished - 1991

Keywords

  • Aqueous LiBr Solution
  • Marangoni Convection
  • Numerical Simulation
  • Schlieren Method
  • Steam Absorption
  • Surfactant

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

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