Agitator Design Calculation Xls Repack May 2026

This is where the design engineer inputs the fluid properties and tank geometry.

| Parameter | Symbol | Unit | Description | | :--- | :--- | :--- | :--- | | Fluid Density | $\rho$ | kg/m³ | Mass per unit volume of the liquid. | | Viscosity | $\mu$ | cP or Pa.s | Resistance to flow (critical for Reynolds number). | | Tank Diameter | $T$ | m | Inner diameter of the vessel. | | Liquid Level | $H$ | m | Height of the liquid content. | | Impeller Diameter | $D$ | m | Diameter of the agitator blade (usually $D = T/3$ to $T/2$). | | Rotational Speed | $N$ | rpm | Revolutions per minute. | | Number of Impellers | $n$ | - | Single or multiple stages. | agitator design calculation xls repack

This updated version (v3.2) includes:

| Worksheet | Purpose | |-----------|---------| | Input Data | Tank dia, liquid level, impeller type & dia, speed, baffles | | Flow Regime | Re calculation – laminar/transition/turbulent | | Power Calc | Po from charts, actual power, motor efficiency | | Shaft Design | Torque, bending moment, shaft dia, critical speed check | | Results Summary | Power, Re, blend time, tip speed, motor selection guide | | Unit Converter | Metric / Imperial toggle | | Chart Reference | Po vs Re for standard impellers (PBT, Rushton, Anchor, Helical) | This is where the design engineer inputs the

If the agitator is side-mounted (common in ethanol or fuel storage), the repack must calculate NPSHa to prevent cavitation.