Agitator Design Calculation Xls Repack !new! -

Click a button (non-VBA, using Excel's Goal Seek or Solver add-in). The sheet adjusts impeller speed to reach a target power per volume (e.g., 2 kW/m³).

Determines how many times per minute the entire liquid volume passes through the impeller zone. 5. Mechanical Integrity Calculations

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), the mechanical assembly must be checked against structural limits. Shaft Diameter Selection

This updated version (v3.2) includes:

For high-quality, pre-made templates and guidance, consider these sources: Chemical Process Engineering Templates : Offers structured formats like HCPE-MMP-0030

Choose the type (axial vs. radial) and quantity of impellers. Size Motor/Gearbox:

Many agitators work inside jacketed reactors. The repack should include:

G=PV⋅μcap G equals the square root of the fraction with numerator cap P and denominator cap V center dot mu end-fraction end-root is the liquid volume. 3. Mechanical Design and Safety Factors Once the process requirements dictate the impeller size ( ) and speed ( agitator design calculation xls repack

Reynolds number, Power consumption, Torque, Pumping capacity (Q), and Pumping number ( Nqcap N sub q

Sizing the shaft, gearbox, and motor to withstand torsional and bending stresses without hitting critical resonant frequencies. 2. Input Parameters Needed for the XLS Tool

Hydraulic forces acting unevenly on the impeller blades create a bending moment (

For solids handling, the workbook steps through suspension criteria using just a few measured or estimated inputs: particle size, density difference, and desired mixing degree. A dedicated table shows multiple impeller options (marine, pitched-blade, turbine), their expected flow patterns, and calculated minimum tip speed to keep particles suspended. A quick “what-if” area lets you instantly compare impeller sizes and speeds — the kind of instant feedback that turns design iteration into experimentation. Click a button (non-VBA, using Excel's Goal Seek

) must be calculated. The safe operating speed should typically not exceed

Automated calculations for non-Newtonian, high-viscosity fluids (impeller type selection changes based on viscosity). Library of Impellers: Pre-programmed Npcap N sub p and Flow Number ( Nqcap N sub q ) data for standard impellers.

) or you need to add to your sheet. Share public link