Vasconcelos Jorge M.T., Orvalho Sandra C.P., Rodrigues Ana M.A.F. Effect of Blade Shape on the Performance of Six-Bladed Disk

Ind. Eng. Chem. Res. , Vol. 39, No. 1, 2000Different modifications of the Rushton turbine were studied in a dual-impeller agitated tank (T=0.4 m), to find the effect of blade form on power draw, turbulent dispersion, gas handling
capacity, mixing, gas holdup, and mass-transfer rate performance under turbulent agitation in
an air-water system. Blade streamlining was found to lead to a lower ungassed power number,
a higher gas flow number before flooding, and increased insensitivity of impeller power dissipation
to the gassing rate.