Loading
-
1.
An ice making plant using refrigerant R-12 is having an evaporator saturation temperature of –25°C and the condenser saturation temperature of 35°C. The vapour is leaving the compressor at 65°C. Following table shows the properties of the refrigerant.
Temperature °C Pressure, kPa Saturation Enthalpy kJ/kg
(Liquid)Saturation Enthalpy kJ/kg
(Vapour)25 123.7 13.3 176.5 35 850.0 69.6 201.5
(a) Calculate the Coefficient Of Performance (COP) of this system
(b) If the capacity of the plant is 5 kW, calculate mass flow rate of refrigerant and Power consumption.
[5 marks]
asked in Mechanical Engineering, 2002
View Comments [0 Reply]
-
2.
-
3.
-
4.
-
5.
-
6.