Process Engineering Reference Sheets by MyEngineeringTools.com
THE CALCULATORS

Constant Mixing Time Scale-Up

Calculates the required impeller speed, power scaling, and Reynolds number for scaling up mixing processes while maintaining a constant blend time.

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1. Define Input Parameters

2. Engineering Output

Impeller Speed (N)
- rev/s
Reynolds Number (Re)
- dimensionless
Production Power Requirement (P_large)
- W

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Context & Assumptions

Constant mixing time scale-up is used in process engineering to maintain consistent blending performance across different vessel sizes. This methodology ensures that time-dependent concentration gradients remain uniform, which is critical for reaction kinetics sensitive to mixing rates.

Understand the Engineering Principles

Review the step-by-step derivations, typical industrial limits, and scale-up rules.

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