A steam power plant operates on a Rankine cycle and has a net power output of 45 MW. Steam enters the turbine at 7 MPa and 450 °C and is cooled in the condenser at a pressure of 10 kPa by running cooling water from a lake through the tubes of the condenser at a rate of 2000 kg/s. Due to irreversibility in the turbine, the steam quality at the outlet of the turbine is 85 percent. Show the T-s diagram with respect to saturation lines. 1 Determine: 2 the isentropic efficiency of the turbine, 3 the thermal efficiency of the cycle, and the mass flow rate of the steam. .4
A steam power plant operates on a Rankine cycle and has a net power output of 45 MW. Steam enters the turbine at 7 MPa and 450 °C and is cooled in the condenser at a pressure of 10 kPa by running cooling water from a lake through the tubes of the condenser at a rate of 2000 kg/s. Due to irreversibility in the turbine, the steam quality at the outlet of the turbine is 85 percent. Show the T-s diagram with respect to saturation lines. 1 Determine: 2 the isentropic efficiency of the turbine, 3 the thermal efficiency of the cycle, and the mass flow rate of the steam. .4
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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Transcribed Image Text:A steam power plant operates on a Rankine cycle and has a net power output of 45 MW. Steam
enters the turbine at 7 MPa and 450 °C and is cooled in the condenser at a pressure of 10 kPa by
running cooling water from a lake through the tubes of the condenser at a rate of 2000 kg/s. Due to
irreversibility in the turbine, the steam quality at the outlet of the turbine is 85 percent.
Show the T-s diagram with respect to saturation lines.
1
Determine:
2
.3
.4
the isentropic efficiency of the turbine,
the thermal efficiency of the cycle, and
the mass flow rate of the steam.
Expert Solution
Step 1
Wnet = 45 MW
P1 = 7 MPa
T1 = 450 oC
P2 = 10 kPa
x2 = 0.85
To Find:
1) TS diagram
2) Isentropic efficiency of Turbine
3) Thermal efficiency of cycle
4) mass flow rate of the steam
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Solved in 4 steps with 3 images
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