A heat pump that operates on a Carnot cycle cools a house in a very hot climate. During the hottest part of the day, the outside temperature is 45 °C, and you want to keep the inside temperature at 20 °C. The heat pump operates on electricity.
Part A: What is the coefficient of performance of cooling during the hottest part of the day?
COPcooling =
Part B: At what maximum rate does the pump use electrical energy if it removes thermal energy from the house at a rate of 3.30 kW?