A Rankine cycle with superheat receives 3,250,000 Btu/h of heat input through the steam generator and produces steam that exits the steam generator at 1600 psia and 1000°F. The condenser pressure is 1.5 psia. External cooling water enters the condenser at 70°F and exits the condenser at 110°F. The isentropic efficiency of the pump is 0.75. Plot the mass flow rate of the external cooling water for turbine isentropic efficiencies ranging between 0.40 and 1.0.
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