Determination of bubble size distributions in bubble columns using LDA

AIChE Journal ◽  
2004 ◽  
Vol 50 (12) ◽  
pp. 3068-3084 ◽  
Author(s):  
Amol A. Kulkarni ◽  
Jyeshtharaj B. Joshi ◽  
Doraiswami Ramkrishna
Keyword(s):  
Bubble Size ◽  
Bubble Columns ◽  
Size Distributions

Bubble-Size distributions and flow fields in bubble columns

AIChE Journal ◽  
2002 ◽  
Vol 48 (11) ◽  
pp. 2426-2443 ◽  
Author(s):  
F. Lehr ◽  
M. Millies ◽  
D. Mewes
Keyword(s):  
Bubble Size ◽  
Flow Fields ◽  
Bubble Columns ◽  
Size Distributions

Liquid circulation, bubble size distributions, and solids movement in two- and three-phase bubble columns

1996 ◽  
Vol 51 (10) ◽  
pp. 1703-1713 ◽  
Author(s):  
S. Grevskott ◽  
B.H. Sannæs ◽  
M.P. Duduković ◽  
K.W. Hjarbo ◽  
H.F. Svendsen
Keyword(s):  
Bubble Size ◽  
Bubble Columns ◽  
Size Distributions ◽  
Liquid Circulation ◽  
Three Phase

Approximate Solution of the Population Balance Equation for Three Dimensional Flow Field in Bubble Columns With and Without Mass Transfer

2002 ◽  
Author(s):  
Dieter Mewes ◽  
Dierk Wiemann
Keyword(s):  
Flow Field ◽  
Bubble Size ◽  
Balance Equation ◽  
Large Scale ◽  
Population Balance ◽  
Flow Fields ◽  
Bubble Columns ◽  
Large Bubble ◽  
Size Distributions ◽  
Volume Fractions

In this paper bubble size distributions and flow fields in bubble columns are calculated numerically. The population balance is simplified and reduced to a balance equation for the average bubble volume. Models are developed in order to predict the rate of bubble break-up and coalescence based on physical principals. The flow fields are numerically calculated for bubble columns with cylindrical cross section using the Euler-Euler method. The newly derived balance equations for the average bubble volumes are implemented into a commercial CFD-code. The solutions of the balance equation result for high superficial gas velocities mainly in two fractions, one for the fraction with small and one for the fraction with large bubble diameters. Both are considered as pseudo continuous phases in addition to the liquid phase. The calculated flow fields are characterized by several large scale vortices. The local volume fractions of gas and liquid are locally inhomogeneous and highly time dependent. The time averaged flow field is axisymmetric and stationary. The calculated volume fractions, velocities and bubble size distributions agree well with experimental results for bubble columns up to 0.3m in diameter.

Modeling of the evolution with length of bubble size distributions in bubble columns

2006 ◽  
Vol 61 (11) ◽  
pp. 3663-3673 ◽  
Author(s):  
Sergio Bordel ◽  
Rafael Mato ◽  
Santiago Villaverde
Keyword(s):  
Bubble Size ◽  
Bubble Columns ◽  
Size Distributions

Acoustic and optical determination of bubble size distributions – Quantification of seabed gas emissions

2021 ◽  
Vol 108 ◽  
pp. 103313
Author(s):  
Jianghui Li ◽  
Paul R. White ◽  
Ben Roche ◽  
Jonathan M. Bull ◽  
Timothy G. Leighton ◽  
...  
Keyword(s):  
Bubble Size ◽  
Size Distributions ◽  
Gas Emissions ◽  
Optical Determination
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