What is the correct definition of the cooling coefficient of performance?
a) dividing the cooling effect at the evaporator by the compressor work
b) dividing the the heating effect at the condenser by the compressor work
c) dividing the compressor work by the cooling effect at the evaporator
d) dividing the cooling effect at the evaporator by the heating effect at the condenser
e) dividing the compressor work by the heating effect at the condenser