Agitator Design Calculation Pdf Download Verified ((top))

: Standard choices include propellers for low viscosity, turbines for high shear, or anchor agitators for high-viscosity wall-scraping. Memorial University of Newfoundland 2. Calculate Reynolds Number ( cap N sub cap R e end-sub

Torque is calculated directly from the motor power and rotational speed:

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= Impeller Power Number (obtained from manufacturer charts or empirical data) Viscosity Correction for Laminar Flow In laminar regimes ( Npcap N sub p is inversely proportional to the Reynolds number:

P = 1.5 * ρ * N^3 * d^5

), the power equation simplifies because power is directly proportional to viscosity rather than density:

P=Kp⋅μ⋅N2⋅D3cap P equals cap K sub p center dot mu center dot cap N squared center dot cap D cubed 4. Mechanical Design and Shaft Sizing : Standard choices include propellers for low viscosity,

from the manufacturer's performance curve or empirical tables. Solve for power: Apply a safety factor (typically