Study and Design of Impellers for Multiphase Reactors

D. Devakumar and K. Saravanan

Modern Applied Science, 2008, vol. 2, issue 5, 99

Abstract: The main objective of the project is to design impellers of different dimensions in each of the three types, namely paddle, pitched and turbine, to analyze them under various parameters to find out the best impeller of the best dimension for applications. The parameters to be varied and analyzed are impeller diameter, vessel diameter, clearance between impeller and the vessel, viscosity, liquid height and addition of electrolytes like glycerol, dilatants, etc. These impellers are tested and compared to get maximum gas holdup and minimum power consumption; from the comparison it is found that the pitched is the best among the three. Then it is proceeded to test the pitched impellers of various dimensions under the different parameters as mentioned above. For all comparisons and analysis, graphs are plotted between speed and gas holdup, power and gas holdup. From the results, to find the impeller which has maximum gas holdup and minimum power consumption that is suited for particular application.

Date: 2008
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