A steam power plant operates on an ideal regenerative Rankine cycle. Steam enters the turbine at 6 MPa and 450°C and is condensed in the condenser at 20 kPa. Steam is extracted from the turbine at 0.4 MPa to heat the feedwater in an open feedwater heater. Water leaves the feedwater heater as a saturated liquid. Determine the thermal efficiency of the cycle. he thermal efficiency of the cycle is 26.8 %.

A steam power plant operates on an ideal regenerative Rankine cycle. Steam enters the turbine at 6 MPa and 450°C and is condensed in the condenser at 20 kPa. Steam is extracted from the turbine at 0.4 MPa to heat the feedwater in an open feedwater heater. Water leaves the feedwater heater as a saturated liquid. Determine the thermal efficiency of the cycle. he thermal efficiency of the cycle is 26.8 %.

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 6 MPa and 450°C and
is condensed in the condenser at 20 kPa. Steam is extracted from the turbine at 0.4 MPa to heat the feedwater in an open
feedwater heater. Water leaves the feedwater heater as a saturated liquid.
Determine the thermal efficiency of the cycle.
The thermal efficiency of the cycle is 26.8
%.

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Step 2: Data from steam table

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Step 3: Enthalpy calculation

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Step 4: Work calculation

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Step 5: Thermal efficiency of the cycle

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