Mixing Time Estimator
tₘ = K × (D/d)² × (1/N)
Agitated Vessel Design
Vessel & Impeller Parameters
tₘ = K × (D/d)² × (1/N)
K depends on objective: blending 4, suspension 8, reaction 6, dispersion 10 .
Impeller Power Numbers
| Impeller | Np | Application |
|---|---|---|
| Rushton Turbine | 5 | Gas dispersion |
| Pitched Blade | 1.5 | Blending |
| Propeller | 0.3 | Low power blending |
| Anchor | 0.3 | High viscosity |
| Helical Ribbon | 0.3 | Very viscous |
Flow Regime
Re < 10: Laminar
10 ≤ Re < 10⁴: Transitional
Re ≥ 10⁴: Turbulent