What will be the COP and power consumption by the cycle.

A heat pump working on Reversed Carnot cycle takes out 6 kW per minute of the system while working between temperature limits of 300K and 200K. COP and power consumption by the cycle will be ____

a. 1, 2 kW/min
b. 3, 1 kW/min
c. 3, 2 kW/min
d. 2, 3 kW/min

Correct Answer : c. 3, 2 kW/min

Explanation :

COP of the heat pump cycle = T₁ / ( T₁ - _T1 )
=300 / (300 – 200)
=3
Refrigerating effect = 6 kW/min
Therefore,
Work Done = Refrigerating effect / COP
= 6/3
=2 kW/min
= Power consumed