Impeller Submergence Depth for Stirred Tanks

Thiyam Thamphasana Devi (Department of Civil Engineering, Indian Institute of Technology Guwahati, Guwahati 781039)
Annu Priya Sinha (Agriculture Engineering, JNKVV, Jabalpur)
Meena Thakre (Agriculture Engineering, JNKVV, Jabalpur)
Bimlesh Kumar (Department of Civil Engineering, Indian Institute of Technology Guwahati, Guwahati 781039)

Bulletin of Chemical Reaction Engineering & Catalysis
2011: BCREC Volume 6 Issue 2 Year 2011 (December 2011)

Impeller submergence governs the performance of mixing tanks employed in oxygen transfer operation. Present work experimentally investigates the effect of impeller submergence depths on oxygen transfer and corresponding power consumption. It has been found that at higher range of impeller submergence, mixing tanks consume less power and gives higher values of oxygen transfer coefficient. Optimal range of submergence depth is 0.7 to 0.9 times the impeller diameter. © 2011 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0)