Explain freezing with a convective heat coefficient

Reference no: EM13342017

Partially frozen ice cream is being placed in a package before completion of the freezing process. The package has the dimensions 10 cm in diameter by 20 cm in height, and is placed in air-blast freezing with a convective heat coefficient of 50 W/ (m^2 K) for freezing. The product temperature is -5 C when placed in the package, and the air temperature is -25 C. The product density is 700 (kg/m^3), the thermal conductivity (frozen) is 1.2 W/(m K). If the latent heat to be removed during blast freezing is 100 kj/kg, estimate the freezing time.

Reference no: EM13342017

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