Define the freezing time using plank''s equation

Reference no: EM13342012

A 5 cm thick beef steak is being frozen in a -30 C room. The product has 73% moisture content, density of 970 kg/m^3, and a thermal conductivity (frozen) of 1.1 W/ (m K). Estimate the freezing time using Plank's equation. The product has an initial freezing temperature of -1.75 C, and the movement of air in the freezing room provides a convective heat-transfer coefficient of 5 W/(m^2 K). The latent heat is 250 kJ/kg.

Reference no: EM13342012

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