Atmospheric air enters an air-conditioner at T1= 30 °C and 70% relative humidity with a volume flow rate of 4 mm in and is cooled to T 20 °C and

206 relative humidity at a pressure of 1 atmosphere. The system uses refrigerant-134a as the cooling fluid that enters the cooling section of the air-conditioner at 350 kPa with a quality of 206 and leaves as saturated vapor Sketch a fully labelled schematic điagram of the system and illustrate the complete process on the psychometric chart. Clearly identify the state (a)points on both sketches. (1 mark)