In a Joule-Brayton real cycle, air is compressed from ambient pressure (1bar) and ambient temperature (300 K) to 8 bar,

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In a Joule-Brayton real cycle, air is compressed from ambient
pressure (1bar) and ambient temperature (300 K) to 8 bar, in a
two-stage compressor with intercooling between the stages. The
intermediate pressure (intercooler pressure) must be calculated
taking into account that the two-compression stages have the same
compression ratio. The air is cooled back to 300 K in the
intercooler before entering the second stage of compression. The
maximum temperature of the cycle is 1400 K. Assume an isentropic
efficiency for the two compressors of 0.8 (ηis-comp), and turbine
of 0.9 (ηis-turb).
Represent the real cycle on a T-s diagram and then using the
air-standard assumptions calculate (for the real cycle):
• the air temperature at the exits of each compressor stage;
• the gas temperature at the turbine exit;
• the thermodynamics efficiency;
• the net technical work;
• the net power if the air mass flow rate is 1 kg·s-1