A steam power plant produces 200 MW of electric power operating on a simple ideal Rankine cycle with turbine inlet conditions of 7.5 MPa and 550 degrees Celcius and a condenser pressure of 20 kPa. The pump in the cycle can be considered ideal, while the turbine has an isentropic efficiency of 85%. The coal has a heating of 29.3 MJ/kg. Assuming that 90% of this energy is transferred to the steam in the boiler and that the electric generator has an efficiency of 96%, determine: Overall plant efficiency (ratio of net electric power output to the energy input as fuel) The required rate of coal supply
A steam power plant produces 200 MW of electric power operating on a simple ideal Rankine cycle with turbine inlet conditions of 7.5 MPa and 550 degrees Celcius and a condenser pressure of 20 kPa. The pump in the cycle can be considered ideal, while the turbine has an isentropic efficiency of 85%. The coal has a heating of 29.3 MJ/kg. Assuming that 90% of this energy is transferred to the steam in the boiler and that the electric generator has an efficiency of 96%, determine: Overall plant efficiency (ratio of net electric power output to the energy input as fuel) The required rate of coal supply
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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A steam power plant produces 200 MW of electric power operating on a simple ideal Rankine cycle with turbine inlet conditions of 7.5 MPa and 550 degrees Celcius and a condenser pressure of 20 kPa. The pump in the cycle can be considered ideal, while the turbine has an isentropic efficiency of 85%. The coal has a heating of 29.3 MJ/kg. Assuming that 90% of this energy is transferred to the steam in the boiler and that the electric generator has an efficiency of 96%, determine:
- Overall plant efficiency (ratio of net electric power output to the energy input as fuel)
- The required rate of coal supply
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