Calculators
Tank Mixing / Agitator Sizing
Shaft power, motor HP, pumping capacity, blend time, tip speed, and power per unit volume for a top-entry agitator with a user-specified impeller type (Np, Nq from the built-in reference table).
Method: turbulent-regime power number correlation P = Np ρ N3 D5; pumping Q = Nq N D³; blend time correlation after Norwood & Metzner / Fasano. References: McCabe, Smith & Harriott, Unit Operations of Chemical Engineering, Ch. 9; Paul, Atiemo-Obeng & Kresta (eds.), Handbook of Industrial Mixing. Typical D/T: 0.25–0.55 depending on impeller type.
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