Cold Point Temperature Prediction
Predicts the temperature at the geometric center (cold point) of a conduction-heated cylindrical can during thermal processing using the Ball formula and Newman's Law.
📖 Need the theory? Read the methodology, assumptions, and equations in the full reference guide.
1. Define Input Parameters
2. Engineering Output
Thermal Diffusivity (alpha)
- m^2/s
- m^2/s
Thermal Diffusivity (min) (alpha_min)
- m^2/min
- m^2/min
Heating Rate Index (fh)
- min
- min
Lag Factor (jc)
- dimensionless
- dimensionless
Center Temperature (Tt)
- °C
- °C
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This calculation is fundamental in thermal process engineering for ensuring the safety of solid food products like tuna or meat pastes. It identifies the slowest-heating point in a cylindrical container to determine the necessary retort residence time for sterilization. The model assumes a high Biot number where surface resistance is negligible compared to internal conduction.
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