A Rankine Cycle based steam power plant operates with two adiabatic turbines and a reheater. The boiler of the plant supplies steam at 60 bar and 400 °C to the first turbine, where the steam expands and exits as dry saturated vapour at 8 bar. The steam is then reheated to 400 °C in the reheater and is supplied to the second turbine. The steam leaves the second turbine as dry saturated vapour at 0.1 bar and enters the condenser that produces condensate as saturated water at its outlet. The feed pump work is negligible. Note: Thermodynamic Property Tables required for the calculations are provided on Pages 5 to 8. (a) Sketch the plant configuration and the T-s diagram of the plant operating cycle, indicating all relevant state points. (b) Calculate the actual work output of each turbine per kilogram of the steam supplied by the boiler. (c) Determine the isentropic efficiencies of the two turbines. (d) Find the overall thermal efficiency of the steam plant.

A Rankine Cycle based steam power plant operates with two adiabatic turbines and a reheater. The boiler of the plant supplies steam at 60 bar and 400 °C to the first turbine, where the steam expands and exits as dry saturated vapour at 8 bar. The steam is then reheated to 400 °C in the reheater and is supplied to the second turbine. The steam leaves the second turbine as dry saturated vapour at 0.1 bar and enters the condenser that produces condensate as saturated water at its outlet. The feed pump work is negligible. Note: Thermodynamic Property Tables required for the calculations are provided on Pages 5 to 8. (a) Sketch the plant configuration and the T-s diagram of the plant operating cycle, indicating all relevant state points. (b) Calculate the actual work output of each turbine per kilogram of the steam supplied by the boiler. (c) Determine the isentropic efficiencies of the two turbines. (d) Find the overall thermal efficiency of the steam plant.

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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