Consider home freezer compartment with dimensions of height

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Consider a home freezer compartment with dimensions of height 60 cm, width 40 cm and depth 40 cm. Assume heat loss to be from the five sides exposed to outside air, i.e.,do not consider any heat loss through the side which the freezer sits on. For a Styrofoam insulation of thermal conductivity 0.03W/m·K, what should be the minimum thickness of this insulation so that the total heat loss from the freezer compartment is less than 120W? Assume the freezer air is at ?20?C and the inside surface heat transfer coefficient is 5 W/m2 ·K, while the outside air temperature is 30?C and the outside surface heat transfer coefficient is 20 W/m2 ·K.

Reference no: EM13286763

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