In: Mechanical Engineering
A refrigerant plant of 100 TR capacity uses R-22 as refrigerant. The condensing and
evaporating pressure are 11.82 bar and 1.64 bar, respectively. The refrigerant enters the
compressor at dry saturated state, whereas it leaves the condenser, subcooled by 10°C.
Actual COP is 70% of its theoretical value. Find the following:
a) Theoretical and actual COP
b) Mass flow in kg/s
c) Compressor power.




the
properties of R-22 at given states are found from properties table
of R-22 by linear interpolation