Contact Freezing Time Calculation
Calculates the time required to freeze a product slab in direct contact with a cooling plate using Plank's equation, accounting for packaging and contact resistance.
📖 Need the theory? Read the methodology, assumptions, and equations in the full reference guide.
1. Define Input Parameters
2. Engineering Output
Temperature Difference (delta_T)
- K
- K
Overall Heat Transfer Coefficient (U)
- W/(m^2·K)
- W/(m^2·K)
Freezing Time (Seconds) (t_f_s)
- s
- s
Freezing Time (Hours) (t_f_h)
- h
- h
Biot Number (Bi)
- dimensionless
- dimensionless
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Download Offline Excel CalculationContext & Assumptions
The Contact Freezing Time calculation is a fundamental process engineering assessment used to determine the duration required to solidify a food product when placed in direct contact with a refrigerated surface. This methodology accounts for thermal resistances from the product, packaging, and contact interface to optimize plate freezer operations. It is typically applied in the design of industrial freezing systems and cold-chain logistics to ensure product quality and energy efficiency.
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