Loading...

"Bubble bunch" phenomenon in operation of a bubble column

Bastani, D ; Sharif University of Technology | 2009

348 Viewed
  1. Type of Document: Article
  2. DOI: 10.2478/s11532-009-0081-4
  3. Publisher: 2009
  4. Abstract:
  5. While studying the operation of a rectangular bubble column in laboratory scale, it was observed that under certain circumstances tiny bubbles attach to larger bubbles without causing them to coalesce. In other words, bubbles with large diameters (d > 5 mm) swept tiny bubbles (d < 1 mm) in their way to the top of the column resulting in grapelike clusters of bubbles. This phenomenon was named "bubble bunch" by us and its effect on total gas holdup and interfacial area was discussed. Although it was found to have almost no affect on gas holdup, bubble bunch can increase the interfacial area up to 10% more than what is anticipated in the literature. The process of film thinning was modeled for this phenomenon and coalescence efficiency was calculated as a function of interfacial tension. © Versita Warsaw and Springer-Verlag Berlin Heidelberg 2009
  6. Keywords:
  7. Bubble bunch ; Bubble coalescence ; Bubble columns ; Interfacial area ; Interfacial tension
  8. Source: Central European Journal of Chemistry ; Volume 7, Issue 4 , 2009 , Pages 803-808 ; 18951066 (ISSN)
  9. URL: https://link.springer.com/article/10.2478/s11532-009-0081-4