A refrigeration system of 15 tons capacity operates on standard simple vapour compression cycle using Refrigerant22 at an evaporator temperature 50 C and condensing temperature of 500 C. Draw the p-h diagram for the cycle. Calculate.
(i) The refrigerant mass flow rate, and
(ii) The compressor intake volume flow rate if the compressor volumetric efficiency is 0.72.
Use the refrigerant property data given in Table below.
|
Tem 0 C
|
Pressure bar
|
Enthalpy
|
Volume
|
|
Sat. Liquid kJ/kg
|
Sat. Vapour kJ/kg
|
Sat. Liquid m3/kg
|
Sat. Vapour m3/kg
|
|
5
50
|
5.836
19.423
|
205.9
263.3
|
407.1
417.7
|
0.791
0.922
|
0.0404
0.0117
|