Consider a combined gas-vapor power cycle with the gas turbine operating as the topping cycle and steam turbine as the bottoming cycle. Atmospheric air enters a compressor where it is compressed to a pressure of 16 bar.  It is then sent to a combustion chamber where heat is added and it finally expands in a two stage turbine with reheat. The inlet temperature of both gas turbines is same and the reheat pressure is such that the turbine work output is maximum. The exhaust gases from the exit of the gas turbine is used to heat up water in a Rankine cycle to generate steam at a pressure of 10 Mpa and 400C. This steam enters a turbine and leaves as saturated vapor at the condenser pressure of 10 kPa. During the expansion, some steam is extracted from the turbine for process heating at 1 MPa. The steam leaves the process heater as saturated liquid. It is then sent to a mixing chamber operating at the boiler pressure where it mixes with the feedwater and sent to the boiler. Draw the schematic and the T-s Diagram. Write the expressions for Qout, Wout and utilization factor for the combined cycle. You can neglect pump work while writing the expressions.

Note1: Write the expressions here on moodle and upload the schematic and Ts diagram separately. Expressions written on uploaded sheet will not be evaluated.

Note2: the mass flow rates in the steam and gas turbines are usually different. So use appropriate symbols while writing the expressions.