Air enters the compressor of a cold air-standard Brayton cycle with regeneration at 100 kPa, 300 K with a mass flow rate of 6 kg/s.

Air enters the compressor of a cold air-standard Brayton cycle with regeneration at 100 kPa, 300 K with a mass flow rate of 6 kg/s. the compressor pressure ration is 10 and the turbine inlet temperature is 1400 K. The turbine and compressor each have isentropic efficiencies of 80% and the regenerator effectiveness is 80%. for k=1.4 calculatethermal efficiency for the cycle