Question

please solve the problem, it is thermo-design problem, please do in details, thank you

Combustor Gas turbine :Compressor- Turbine Air inlet- 7 Heat-recovery steam generator Turbine Vapor cycle W) Pump Condenser Cooling water Figure 1: Combined gas turbine-vapor power plant Consider Figure 1 above. The following information is given a. p- 14.7 psia, T 540 °R b. P/p1 12.0 С. Т,-2500,"R d, P,-14.7 psia, Ts-700. "R (Rankine) e. P 1000. psia f. P 1.00 psia, x>0.85 or superheated The isentropic efficiencies for the turbines, the compressor and the pump are 100%. Make the usual assumptions regarding pressure drops and changes in potential and kinetic energy. The heat exchanger effectiveness is 85%. Determine the overall combined cycle thermal efficiency and the net power produced per one lb/s of air flow for various (possible) values of T and compare the highest combined cycle thermal efficiency with the cycle thermal efficiency of an "equivalent" (a, b, and c (above) apply) internally reversible, Brayton cycle with regeneration (85% effectiveness) and with the cycle thermal efficiency of the "best" internally reversible, simple Rankine cycle. Check the internet (provide the references) to determine some realistic values for the turbine inlet state. Provide results for several assumed inlet states. Comment on what you have learned from the solutions to this problem. What do you see as the major advantages /disadvantages of (provide references): a. a combined Brayton/Rankine cycle b. a Brayton cycle alone c. a Rankine cycle alone? what are the best uses of each of the three cycles, i.e., under what conditions would one be selected over the other two? Provide references.

Answer 1

Combustoy Am Exhadst ST 6 Ston qurton 2- apouh PuMN o ccoli iven P,.Up7 psia=1.0135 Ban

No T) T 0.338 baona haat excharen 1- QSStura. 居こ 0,067947 SS 8639 0, gSㅈ (2571-6-16332) 、

NO Wo dora T.-T,006.48 3 138 not fansabl 9- Heat ooded Net Heat oddud * Cu3-2u -|99 と 396489ナ125

No Net p pod Ca foton on pin be poblen