An air-conditioner provides 1 kg/* of air at 15°C cooled from outside atmospheric air at 35°C. Estimate the amount of power needed to operate the air-conditioner. Clearly state all assumptions made.
Consider the cooling of air which needs a heat transfer as
Assume Carnot cycle refrigerator
This estimate is the theoretical maximum performance. To do the required heat transfer TL ≅ 5°C and TH = 45°C are more likely; secondly β < βcarnot
