A household refrigerator is maintained at a temperature of 2 degrees C. Every time the door is opened, warm material is placed inside introducing an average of 420 kJ, but making only a small change in the temperature of the refrigerator. The door is opened 20 times a day and the refrigerator operates at -15% of the Ideal COP. The cost of the work is 4 rupees peL kWh. What is the monthly bill for this refrigerator? The atmosphere is at 30 degrees C

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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A household refrigerator is maintained at
a temperature of 2 degrees C. Every time
the door is opened, warm material is
placed inside introducing an average of
420 kJ, but making only a small.change in
the temperature of the refrigerator. The
door is opened 20 times a day and the
refrigerator operates at -15% of the Ideal
COP. The cost of the work is 4 rupees per
kWh. What is the monthly bill for this
refrigerator? The atmosphere is at 30
degrees C
Transcribed Image Text:A household refrigerator is maintained at a temperature of 2 degrees C. Every time the door is opened, warm material is placed inside introducing an average of 420 kJ, but making only a small.change in the temperature of the refrigerator. The door is opened 20 times a day and the refrigerator operates at -15% of the Ideal COP. The cost of the work is 4 rupees per kWh. What is the monthly bill for this refrigerator? The atmosphere is at 30 degrees C
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