In 1903, a General Electric Curtis impulse steam turbine was installed at the Fisk Street Station of the Commonwealth Electric Company in Chicago, Illinois, and was at that time the most powerful steam turbine in the world.13 The turbine inlet state was 175 psig with 150.°F of superheat, and the condenser pressure was 1.50 in of mercury. When the generator produced a net 5000. kW, the steam flow rate per unit of electrical power produced (m/Welect) was 22.5 lbm/(kW · h). For this unit, determine
a. The isentropic power output of the turbine.
b. The isentropic efficiency of the turbine-generator unit.
c. The isentropic Rankine cycle thermal efficiency of the power plant, assuming saturated liquid exits the condenser and neglecting pump work.