A natural gas-fired Brayton cycle with 푚¤ air, Br = 1.15 kg s−1 . (a) Ambient air at 1.00 bar and 300 K is taken in. (b) A compressor with an inlet-to-outlet pressure ratio of 1:15. (c) Regeneration between the compressor and the combustor, increasing the temperature to 850 K (d) Combustion at constant pressure to 1800 K. (e) A two-stage turbine system with reheat between the stages. Reheat occurs at 6.00 bar and raises the temperature to 1700 K. (f) Discharge to a heat exchanger at 1.40 bar, where waste heat is used to warm steam for the Rankine Cycle. The outlet temperature from this heat exchanger is 900 K. (g) From that heat exchanger, discharge to the regeneration heat exchanger in part 1c. 2. A water-steam Rankine Cycle with 푚¤ water, Ra = 1.60 kg s−1 . (a) A two-stage turbine system, with reheat between the stages. The first turbine inlet is at 560 °C and 160 bar. Reheat occurs at 40.0 bar up to 560 °C. The second-stage turbine outlet is 2.00 bar. (b) Cooling at constant pressure in a condenser via heat exchange with ambient air to saturated liquid. The air used in condenser cooling must not exceed 400 K when it is released from the power plant. (c) A pump from the low-side pressure to the high-side pressure. (d) Heating in a boiler at constant pressure, using the waste heat from the Brayton Cycle in a first stage and natural gas combust