Experimental analysis of bubble mode in a plate-type absorber

Ki Bong Lee, Byung Hee Chun, Jae Cheol Lee, Chan Ho Lee, Sung Hyun Kim

Research output: Contribution to journalArticle

33 Citations (Scopus)

Abstract

An experimental analysis of ammonia-water absorption was performed in a plate-type absorber. The flow of water and ammonia gas was performed in the bubble mode. The experiments were made to examine the effects of solution flow rate and gas flow rate on the performance of the absorber. It was found that the increase of solution flow rate rarely affected the mass transfer, but improved the heat transfer. As the gas flow rate increased, slugging occured in the bubble mode and influenced the thermal boundary layer. Finally, the results were converted into dimensionless numbers to elucidate physical phenomena and plotted as Sherwood number versus Reynolds number for mass transfer performance and Nusselt number versus Reynolds number for heat transfer performance.

Original languageEnglish
Pages (from-to)1923-1929
Number of pages7
JournalChemical Engineering Science
Volume57
Issue number11
DOIs
Publication statusPublished - 2002 Jun 4

Keywords

  • Absorption
  • Ammonia-water
  • Bubble mode
  • Heat transfer
  • Mass transfer
  • Transport processes

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Industrial and Manufacturing Engineering

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