In: Other
A window-mounted air conditioner supplies 29 m3/min
of air at 15°C, 1 bar to a room. Air returns from the room to the
evaporator of the unit at 22°C. The air conditioner operates at
steady state on a vapor-compression refrigeration cycle with
Refrigerant 22 entering the compressor at 4 bar, 10°C. Saturated
liquid refrigerant at 9 bar leaves the condenser. The compressor
has an isentropic efficiency of 70%, and refrigerant exits the
compressor at 9 bar.
Determine:
(a) the compressor power, in kW.
(b) the refrigeration capacity, in tons.
(c) the coefficient of performance.