Find rate of waste heat rejection-electrical cost per hour


An electrical window air conditioner with a cooling capacity of of 8000 kJ/hr draws 6.00 amps of electrical current at 120 volts and maintains the cooled space at a constant 20 oC. The outdoor temperature is a constant 42 oC. The electricity price is $0.15/kwhr. Find the actual cycle coefficient of performance, the rate of waste heat rejection (kJ/hr) and electrical cost per hour. Repeat/Compare results for COP, waste heat rate (kJ/hr) and operating cost ($/hr) for a Carnot refrigeration cycle with the same cooling capacity. Include a complete schematic diagram in your write-up clearly showing hot (top) & cold (bottom) regions and arrows showing all energy exchanges.

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Mechanical Engineering: Find rate of waste heat rejection-electrical cost per hour
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