An adiabatic steam turbine in a power plant receives 5 kg/s steam at 3000 kPa, 500◦C. Twenty percent of the flow is extracted at 1000 kPa, 350◦C to a feedwater heater, and the remainder flows out at 200 kPa, 200◦C (see Fig. P4.84). Find the turbine power output.

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(2 3 ) FIGURE P4.84