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Effect of Surface Heat Transfer on Freezing

Calculates the Biot number for a spherical particle to determine if freezing is limited by external convection or internal conduction.

📖 Need the theory? Read the methodology, assumptions, and equations in the full reference guide.
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1. Define Input Parameters

2. Engineering Output

Characteristic Length (Lc)
- m
Reynolds Number (Re)
- dimensionless
Nusselt Number (Nu)
- dimensionless
Convective Heat Transfer Coefficient (h)
- W/m²K
Biot Number (Bi)
- dimensionless

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Context & Assumptions

This calculation evaluates the heat transfer dynamics during the freezing of spherical particles by comparing external convection to internal conduction. By determining the Biot number, engineers can identify the limiting thermal resistance and optimize freezing processes in food and pharmaceutical industries.

Understand the Engineering Principles

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

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