10. A refrigeration system uses a vapor-compression cycle with refrigerant - 134a as the working fluid. The cycle operates with a condenser pressure of 1.4 MPa and an evaporator pressure of 80kPa. An expansion valve is part of the system along with a compressor. The system is used to create chilled water from 20 to 4°C at a rate of 10 kg/s for use in a food processing plant. (a) Draw the ideal vapor-compression refrigeration cycle on a T-s diagram and a P-h diagram and label the four process steps and four process streams. (3 marks) (b) Calculate the rate of heat removal in kW from the refrigeration system. (2 marks) (c) Calculate the power input to the compressor. (4 marks) (d) Calculate the COP of the ideal refrigeration system. (1 marks) Data: cp water 4.2 kJ/kg°C =