A power plant operates on a regenerative vapor power cycle with one closed feedwater heater. Steam enters the first turbine stage at 120 bar, 520C and expands to 10 bar, where some of the steam is extracted and diverted to a closed feedwater heater. Condensate exiting the feedwater heater as saturated liquid at 10 bar passes through a trap into the condenser. The feedwater exits the heater at 120 bar witha temperature of 170C. The condenser pressure is 0.06 bar. each turbine stage has an isentropic efficiency of 82% and assume 100% efficiency of each pump, determine for the cycle (a) the thermal efficiency and (b) the mass flow rate into the first-stage turbine, in kg/h, if the net power developed is 320 MW.

A power plant operates on a regenerative vapor power cycle with one closed feedwater heater. Steam enters the first turbine stage at 120 bar, 520C and expands to 10 bar, where some of the steam is extracted and diverted to a closed feedwater heater. Condensate exiting the feedwater heater as saturated liquid at 10 bar passes through a trap into the condenser. The feedwater exits the heater at 120 bar witha temperature of 170C. The condenser pressure is 0.06 bar. each turbine stage has an isentropic efficiency of 82% and assume 100% efficiency of each pump, determine for the cycle (a) the thermal efficiency and (b) the mass flow rate into the first-stage turbine, in kg/h, if the net power developed is 320 MW.

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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Question

Hello! I am a student and I am having a hard time with this question. I hope you can help me with this problem. Thank you, Godbless!

A power plant operates on a regenerative vapor power cycle with one closed feedwater
heater. Steam enters the first turbine stage at 120 bar, 520C and expands to 10 bar, where
some of the steam is extracted and diverted to a closed feedwater heater. Condensate exiting
the feedwater heater as saturated liquid at 10 bar passes through a trap into the condenser.
The feedwater exits the heater at 120 bar with a temperature of 170C. The condenser pressure
is 0.06 bar. each turbine stage has an isentropic efficiency of 82% and assume 100%
efficiency of each pump, determine for the cycle (a) the thermal efficiency and (b) the mass
flow rate into the first-stage turbine, in kg/h, if the net power developed is 320 MW.

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