Baffle Width and Number Calculation
Determines the required baffle width and evaluates the impact of baffles on the power consumption of a stirred-tank reactor.
📖 Need the theory? Read the methodology, assumptions, and equations in the full reference guide.
1. Define Input Parameters
2. Engineering Output
Baffle width (Wb)
- m
- m
Bottom clearance (clearance)
- m
- m
Impeller tip speed (Utip)
- m s-1
- m s-1
Reynolds number (Re)
- dimensionless
- dimensionless
Power number for baffled configuration (Np_b)
- dimensionless
- dimensionless
Unbaffled shaft power (P_un)
- W
- W
Baffled shaft power (P_b)
- W
- W
Power ratio (Power_ratio)
- dimensionless
- dimensionless
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Download Offline Excel CalculationContext & Assumptions
Proper baffle sizing prevents vortex formation, ensures adequate axial mixing, and predicts the additional motor load introduced by baffles. This methodology is routinely applied in process-engineering design of batch, fed-batch, and continuous reactors with standard multi-baffle configurations.
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