= Efficiency of the speed reducer/gearbox (typically 0.94–0.97). ηsealeta sub s e a l end-sub
The operational speed should be at least or 30% above the first critical speed. Excel sheets use the Rayleigh-Ritz method to solve for Nccap N sub c agitator design calculation xls repack
This is a free, reliable starting point for mechanical agitation design. Use it to shortlist impeller size, motor power, and shaft diameter before detailed engineering. = Efficiency of the speed reducer/gearbox (typically 0