An agitator design calculation Excel workbook should capture key inputs, calculation steps, and outputs needed to size and specify a mixer for a given tank/process. Aim for clear sections: Inputs, Fluid properties, Tank geometry, Agitator geometry, Power/torque sizing, Mixing performance (power number, tip speed, Reynolds number), and Mechanical checks (shaft deflection, bearing loads).
P=Np⋅ρ⋅N3⋅D5cap P equals cap N sub p center dot rho center dot cap N cubed center dot cap D to the fifth power Npcap N sub p : Power number (obtained from standard curves based on NRecap N sub cap R e end-sub and impeller geometry). : Shaft power ( Wattscap W a t t s 💡 For turbulent regimes ( Npcap N sub p becomes constant. For laminar regimes ( Npcap N sub p is inversely proportional to NRecap N sub cap R e end-sub 2. Shaft Mechanical Design agitator design calculation xls
. The spreadsheet uses this constant in the fundamental formula to calculate the absorbed power An agitator design calculation Excel workbook should capture
A standard design XLS typically includes the following tabs or sections: Key Inputs Calculated Outputs Tank diameter, liquid height, density, viscosity Total volume, Z/T ratio Impeller Data Type (Turbine, Paddle, Propeller), diameter NRecap N sub cap R e end-sub , Tip speed Power Calcs Power Number ( Npcap N sub p ), efficiency factors Absorbed power, Motor HP Shaft Design Shaft material, overhang length Shaft diameter, Critical speed Available Resources : Shaft power ( Wattscap W a t