In an ideal Brayton refrigeration cycle air enters the compressor at 100 kPa and 300 K. The

Question:

In an ideal Brayton refrigeration cycle air enters the compressor at 100 kPa and 300 K. The compression ratio is 4, and air enters the turbine inlet at 350 K. The mass flow rate of air is 0.05 kg/s. Determine
(a) The rate of cooling,
(b) The net power input,
(c) The COP, and
(d) The Carnot COP.