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A reversed Carnot cycle air conditioner of capacity 1TR operated with evaporator coil temperature t 0 =7$^{\circ}$C.

The surrounding air 43˚C is used as a cooling medium rising to temperature of 53˚C. The temperature of heat rejection is t k =55˚C. Determine. C.O.P, Power consumption of air conditioner, and mass flow rate of surrounding air entering the condenser. Take C$_{p}$ for air 1.005 KJ/KgK.

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