A steam turbine operates receiving steam from the boiler at 2000 psia and 1000 F. The steam expands to 600 psia where there is an extraction port. The temperature of the extracted steam is 750 F. 25% of the entering steam flow is extracted and sent to a feedwater heater. The remaining steam inside the turbine expands to 1.0 psia, the condenser pressure. The quality of the steam exiting the turbine to the condenser is 85%. Calculate the isentropic efficiency of the turbine.
A steam turbine operates receiving steam from the boiler at 2000 psia and 1000 F. The steam expands to 600 psia where there is an extraction port. The temperature of the extracted steam is 750 F. 25% of the entering steam flow is extracted and sent to a feedwater heater. The remaining steam inside the turbine expands to 1.0 psia, the condenser pressure. The quality of the steam exiting the turbine to the condenser is 85%. Calculate the isentropic efficiency of the turbine.
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 turbine operates receiving steam from the boiler at 2000 psia and 1000 F. The steam expands to 600 psia where there is an extraction port. The temperature of the extracted steam is 750 F. 25% of the entering steam flow is extracted and sent to a feedwater heater. The remaining steam inside the turbine expands to 1.0 psia, the condenser pressure. The quality of the steam exiting the turbine to the condenser is 85%. Calculate the isentropic efficiency of the turbine.
Answers:
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73% |
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78% |
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64% |
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68% |
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85% |
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