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Numerical and experimental investigations of gas-liquid dispersion in an ejector
- Authors
- Kim, MI[Kim, Myoung Il]; Kim, OS[Kim, Og Sin]; Lee, DH[Lee, Dong Hyun]; Kim, SD[Kim, Sang Done]
- Issue Date
- Dec-2007
- Publisher
- PERGAMON-ELSEVIER SCIENCE LTD
- Keywords
- ejector; gas suction; multiphase flow; hydrodynamics; numerical analysis; simulation
- Citation
- CHEMICAL ENGINEERING SCIENCE, v.62, no.24, pp.7133 - 7139
- Indexed
- SCIE
SCOPUS
- Journal Title
- CHEMICAL ENGINEERING SCIENCE
- Volume
- 62
- Number
- 24
- Start Page
- 7133
- End Page
- 7139
- ISSN
- 0009-2509
- Abstract
- The effects of the ejector geometry (nozzle diameter and mixing chamber) and the operating conditions (liquid circulating rate, liquid level in column) on the hydraulic characteristics in a rectangular bubble column (0.22 x 0.26 x 1.3 m(3)) with a horizontal flow ejector were determined. The gas phase holdup increases with increasing liquid circulating rate but decreases with increasing liquid level in the column. In the multiphase CFD simulation with the mixture model and the experiments, the gas suction rate increases with increasing liquid circulating rate. However, the gas suction rate decreases with increasing the liquid level in the column and nozzle diameter. The predicted values from the CFD simulation are well accord to the experimental data. (C) 2007 Elsevier Ltd. All rights reserved.
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Related Researcher
- LEE, DONG HYUN
- Engineering (Chemical Engineering)