Consider a Brayton Cycle with all the goodies installed: Regenerator (c=75%); Intercooling of 2-Stage Compressor (nc = 85%); and Reheating for 2-Stage Turbine (nr = 80%). The pressure ratio rp = 10:1, with air entering the compressor at 100 kPa and 300K. Maximum Temperature is set to 1500K. Pressure ratios will be equal in the Compressor and Turbine. a) Draw the Schematic with state point labels. b) Populate the table below. State Temp [K] Enthalpy [kJ/kg] 1 300 K 2s 2a 3 4s 4a 5 6 7s 7a 8 9s 9a 10 300 K 1500K

A rankine cycle with water superheats to 500.546oC at 3.1546 Mpa in the boiler and the condenser operates at 100.546oC. All the components are ideal except the turbine which has an exit state measured to be saturated vapor at 100.546oC. Find the cycle efficiency with a) an ideal turbine and b) the actual turbine. Draw the schematic diagram and T-s diagram.

(b) Derive an expression for thermal efficiency of ideal Brayton cycle