A steam power plant operates on an ideal regenerative Rankine cycle. Steam enters the turbine at 5 MPa, 450 ∘C, and is condensed in the condenser at 15 kPa. Steam is extracted from the turbine at a pressure of 0.4 MPa and enters the open feedwater heater. Water leaves the feedwater heater as a saturated liquid. A) Determine the thermal efficiency of the cycle. B) Determine the net work output per kilogram of steam flowing through the boiler. (W_net)
A steam power plant operates on an ideal regenerative Rankine cycle. Steam enters the turbine at 5 MPa, 450 ∘C, and is condensed in the condenser at 15 kPa. Steam is extracted from the turbine at a pressure of 0.4 MPa and enters the open feedwater heater. Water leaves the feedwater heater as a saturated liquid. A) Determine the thermal efficiency of the cycle. B) Determine the net work output per kilogram of steam flowing through the boiler. (W_net)
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 operates on an ideal regenerative Rankine cycle. Steam enters the turbine at 5 MPa, 450 ∘C, and is condensed in the condenser at 15 kPa. Steam is extracted from the turbine at a pressure of 0.4 MPa and enters the open feedwater heater. Water leaves the feedwater heater as a saturated liquid. A) Determine the thermal efficiency of the cycle. B) Determine the net work output per kilogram of steam flowing through the boiler. (W_net)
Transcribed Image Text:A steam power plant operates on an ideal regenerative Rankine cycle. Steam enters the turbine at 5 MPa, 450 °C, and is condensed in the condenser at 15 kPa. Steam
is extracted from the turbine at a pressure of 0.4 MPa and enters the open feedwater heater. Water leaves the feedwater heater as a saturated liquid.
Part A
Determine the thermal efficiency of the cycle
Express your answer to four significant figures.
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Part B
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Determine the net work output per kilogram of steam flowing through the boiler.
Express your answer to six significant figures.
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