Mass Transfer Enhancement Due to the Presence of Double Stage 6-Blade Flat Turbine in an Open Electrolytic Cell

Mass transfer data was obtained by rotating the double stage 6-blade flat turbine in an open electrolytic cell using the LCDT (Limiting Current Density Technique). Data was taken at the microelectrodes fixed on both electrode support and the cell wall. Equimolal concentrations of Potassium Ferri-Ferro cyanide couple (0.01N) with 0.5N (excess) Sodium Hydroxide was taken as an electrolyte. Diffusion controlled cathodic reduction of potassium ferricyanide ion was studied. Variables of interest are rotational speed of the turbine, diameter of the turbine and width of the blade. Regression analysis yielded the following correlations on both the electrode support and cell wall.

Electrode Support: jD =318 Re_r^−0.9298(d/d_e)^0.1157

Cell Wall: jD = 191.2 Re_r^−0.9617 (d/d_e)^0.05332