scholarly journals Experimental Study of Standard Aeration Efficiency in a Bubble Column

2018 ◽  
Author(s):  
Florentina Bunea ◽  
Gabriel Dan Ciocan
Keyword(s):  
Experimental Study ◽  
Bubble Column ◽  
Aeration Efficiency

Influence of scale on the hydrodynamics of bubble column reactors: an experimental study in columns of 0.1, 0.4 and 1m diameters

2003 ◽  
Vol 58 (3-6) ◽  
pp. 719-724 ◽  
Author(s):  
A Forret ◽  
J-M Schweitzer ◽  
T Gauthier ◽  
R Krishna ◽  
D Schweich
Keyword(s):  
Experimental Study ◽  
Bubble Column ◽  
Bubble Column Reactors

Development of a CFD Model of Bubble Column Bioreactors: Part One - A Detailed Experimental Study

2013 ◽  
Vol 36 (12) ◽  
pp. 2065-2070 ◽  
Author(s):  
D. D. McClure ◽  
J. M. Kavanagh ◽  
D. F. Fletcher ◽  
G. W. Barton
Keyword(s):  
Experimental Study ◽  
Bubble Column ◽  
Cfd Model

An experimental study of nozzle diameters, aeration depths and angles on standard aeration efficiency (SAE) in a venturi aerator

2009 ◽  
Vol 4 (3) ◽  
Author(s):  
M.R. Ghomi ◽  
M. Sohrabnejad ◽  
M. R. Ovissipour
Keyword(s):  
Experimental Study ◽  
Oxygen Transfer ◽  
Air Entrainment ◽  
Nozzle Diameter ◽  
Venturi Tube ◽  
Water Pump ◽  
Significant Difference ◽  
Oxygen Transfer Efficiency ◽  
Aeration Efficiency ◽  
Nozzle Size

A 1.1 kW submersible water pump with a venturi air injector was used in this study to examine the effects of three factors including nozzle diameter (14, 17 and 20 mm), aeration depth (20, 40 and 60 cm), and aeration angle (0, 22.5 and 45°) on standard aeration efficiency (SAE). For maximum air entrainment, HT / DT ratio and DT / DN ratio were equal to zero and 2, respectively. Among the first factor experiments, 14 mm nozzle diameter showed the highest SAE value (P<0.05). Although, 60 cm aeration depth and 45° aeration angle had more SAE value among other depths and angles, but there was not a significant difference (P>0.05) in each aeration depths and angles. Only, the determination coefficient for effect of nozzle diameters on SAE value showed a good result (R2= 0.958). The greatest oxygen transfer efficiency in this study has been achieved with using 14 mm nozzle size, 60 cm depth of aeration, and 45° angle of venturi tube in water aeration that was 1.166 kgO2/ kWh. Venturi aerators are very inexpensive in comparison with other aerators and have some other advantages that can be considered as one of the best devices for water aeration.

Experimental study and CFD simulation of the multiphase flow conditions encountered in a Novel Down-flow bubble column

2018 ◽  
Vol 350 ◽  
pp. 507-522 ◽  
Author(s):  
Mutharasu L.C. ◽  
Dinesh V. Kalaga ◽  
Mayur Sathe ◽  
Damon E. Turney ◽  
Derek Griffin ◽  
...  
Keyword(s):  
Experimental Study ◽  
Multiphase Flow ◽  
Cfd Simulation ◽  
Bubble Column ◽  
Flow Conditions

Experimental study of viscous effects on flow pattern and bubble behavior in small diameter bubble column

2018 ◽  
Vol 30 (9) ◽  
pp. 093101 ◽  
Author(s):  
Olumayowa T. Kajero ◽  
Mukhtar Abdulkadir ◽  
Lokman Abdulkareem ◽  
Barry James Azzopardi
Keyword(s):  
Experimental Study ◽  
Flow Pattern ◽  
Bubble Column ◽  
Small Diameter ◽  
Bubble Behavior ◽  
Viscous Effects
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