The condenser of a room air conditioner is designed to reject heat at a rate of 15,000 kJ/h from refrigerant-134a as the refrigerant is condensed at a temperature of 40°C. Air (cp = 1005 J/kg·K) flows across the finned condenser coils, entering at 25°C and leaving at 35°C. If the overall heat transfer coefficient based on the refrigerant side is 150 W/ m2·K, determine the heat transfer area on the refrigerant side.

Elements Of Electromagnetics
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ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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The condenser of a room air conditioner is designed
to reject heat at a rate of 15,000 kJ/h from refrigerant-134a
as the refrigerant is condensed at a temperature of 40°C.
Air (cp = 1005 J/kg·K) flows across the finned condenser
coils, entering at 25°C and leaving at 35°C. If the overall heat
transfer coefficient based on the refrigerant side is 150 W/
m2·K, determine the heat transfer area on the refrigerant
side.

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