2. Calculation examples for agitation systems
2.1 Agitation power and torque required
The power required to drive a helical ribbon type agitator (N = 100 rpm) with the following main geometrical characteristics is calculated:
The mobile is placed in a tank 0.346 m in diameter t, containing a viscous Newtonian liquid (V = 30 L) with density ρ = 1,400 kg/m3 and viscosity µ = 40 Pa.s.
The previously determined constants KP and Ks are equal to 315 and 32 respectively. The power dissipated per unit volume of liquid, P/V, and the peripheral speed of the agitator are deduced.
Helical ribbon type agitators are particularly...
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Calculation examples for agitation systems
Extrapolation
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