Chapter 6, Problem 6.63P

QL 0.03m* of air s initially at 206°C and 7 bar is expanded at constant pressure to 0.09m? the followed by a polytropic process with index 1.5. Finally, a constant temperature process i carried out to complete the cycle. Determine: (a) Sketch the processes on P-V, T-V, and T-S diagrams. (b) The change in entropy during each process. (

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The turbine of a vapor power plant its schematics is shown in Figure Q6 is evaluated for entropy generation. The details of the steam at the inlet and exit from the turbine are Given in Table Q6. The mass flow rate and the power produced by the steam turbine is also given in the Table. 1 Wev 2 Figure Q6: Schematics of the steam turbine Consider Case # 2 from the Table: Table Q6: State points of the steam turbine along with corresponding Case Numbers. Turbine exit Power velocity Output Turbine inlet Turbine inlet Turbine inlet Mass flowrate at Case Turbine exit Pressure Temperature Velocity the turbine inlet Number state (bar) (oC) (m/s) (kg/s) (m/s) (kW) Saturated 1 40 500 150 2.0 vapor at 60 1900 65°C Saturated 2 100 520 160 2.1 vapor at 70 1950 70°C Saturated 3 60 600 170 2.2 vapor at 80 2000 75°C Saturated 4 80 560 140 2.3 vapor at 90 2050 80°C Saturated 60 540 150 2.4 vapor at 100 2100 0.20 bar Saturated 6 80 520 160 2.5 vapor at 80 2150 0.30 bar Saturated 7 100 600 140 2.6 vapor…