A combined gas turbinevapor power plant operates as in

Chapter 9, Problem 9.96

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A combined gas turbine–vapor power plant operates as in Fig. 9.22. Steady-state data at principal states of the combined cycle are given in the table below. An air-standard anaylsis is assumed for the gas turbine in which the air passing through the combustor receives energy by heat transfer at a rate of 50 MW. Except for the combustor, all components operate adiabatically. Kinetic and potential energy effects are negligible. Determine.

(a) the mass flow rates of the air, steam, and cooling water, each in kg/s.

(b) the net power developed by the gas turbine cycle and the vapor cycle, respectively, each in MW.

(c) the thermal efficiency of the combined cycle.

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