A window-type cooling unit shown in the figure supplies a room with 19 m3 of air per minute at a temperature of 15C and a pressure of 100 kPa. Air returns from the chamber to the evaporator at 22C. The unit operates on a vapor compression refrigeration cycle and uses R-134a as refrigerant. The refrigerant enters the compressor at a pressure of 400 kPa and a temperature of 10C. It is separated from the condenser as a saturated liquid at a pressure of 900 kPa. The isentropic efficiency of the compressor is 70% and the refrigerant leaves the compressor at a pressure of 900 kPa. a) Compressor power (kW), b) Cooling capacity (kW), c) Calculate the COP of the cycle d) Show the cycle in the T-s diagram. e) Do not use this cooling machine in a place where the outdoor temperature is 42C. Can you use it to keep it at 22C?