Chemical & Pharmaceutical Engineering Articles

The theory behind the calculators, with formulas, worked examples and the mistakes people make on the plant. Each article links to its calculator.

How to Calculate Pump Power

Hydraulic power, shaft power, and motor sizing, with a full worked example.

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Solvent Recovery Calculation Explained

The Antoine equation, boiling point at vacuum, and why recovery runs under vacuum at all.

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How to Calculate Filtration Performance

Turning a bench filtration trial into specific cake resistance and expected flux.

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Heat Load & Recovery Time

Heat duty and batch recovery time for solvent recovery, worked through step by step.

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Mixing & Scale-up Calculations Explained

Why constant tip speed, constant P/V, and constant Reynolds number give different answers.

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Centrifuge Cake Weight & G-Force Calculation

Basket G-force and cake mass from geometry and bulk density.

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