A steam power plant operates on the actual regenerative Rankine cycle with a closed feedwater heater as shown in the figure below. Steam turbine inlet at 2000 kPa and 380 °C and condenser at 40 kPa. Steam is extracted at 1000 kPa to serve the closed feedwater heater, which discharges into the condenser after being throttled to condenser pressure and at point 7, steam is saturated liquid. The isentropic efficiencies of the turbine and the pump are 85 percent and 90 percent, respectively. Calculate; 4 Turbine a. turbine work (W7 , kJ/kg) b. pump work (W, k]/kg) c. heat supply in the boiler (Q;n,k]/kg) d. thermal efficiency of the cycle Boiler Condenser 7 Closed fwh (Pump) 3 2 Note: -Thermodynamic properties that cannot be obtained directly from Thermodynamics Tables will be found by linear interpolation. -Kinetic and potential energy changes are negligible.

A steam power plant operates on the actual regenerative Rankine cycle with a closed feedwater heater as shown in the figure below. Steam turbine inlet at 2000 kPa and 380 °C and condenser at 40 kPa. Steam is extracted at 1000 kPa to serve the closed feedwater heater, which discharges into the condenser after being throttled to condenser pressure and at point 7, steam is saturated liquid. The isentropic efficiencies of the turbine and the pump are 85 percent and 90 percent, respectively. Calculate; 4 Turbine a. turbine work (W7 , kJ/kg) b. pump work (W, k]/kg) c. heat supply in the boiler (Q;n,k]/kg) d. thermal efficiency of the cycle Boiler Condenser 7 Closed fwh (Pump) 3 2 Note: -Thermodynamic properties that cannot be obtained directly from Thermodynamics Tables will be found by linear interpolation. -Kinetic and potential energy changes are negligible.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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