A steam power plant operates on an ideal reheat-regenerative Rankine cycle and has a net power output of 120 MW. Steam enters the high-pressure turbine at 10 MPa and 550°C and leaves at 0.8 MPa. Some steam is extracted at this pressure to heat the feed-water in an open feed-water heater. The rest of the steam is reheated to 500ºC and is expanded in the low-pressure turbine to the condenser pressure of 10 kPa. Show the cycle on a T-s diagram with respect to saturation lines, and determine (a) the mass flow rate of steam through the boiler and (b) the thermal efficiency of the cycle.
A steam power plant operates on an ideal reheat-regenerative Rankine cycle and has a net power output of 120 MW. Steam enters the high-pressure turbine at 10 MPa and 550°C and leaves at 0.8 MPa. Some steam is extracted at this pressure to heat the feed-water in an open feed-water heater. The rest of the steam is reheated to 500ºC and is expanded in the low-pressure turbine to the condenser pressure of 10 kPa. Show the cycle on a T-s diagram with respect to saturation lines, and determine (a) the mass flow rate of steam through the boiler and (b) the thermal efficiency of the cycle.
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 an ideal reheat-regenerative Rankine cycle and
has a net power output of 120 MW. Steam enters the high-pressure turbine at 10
MPa and 550°C and leaves at 0.8 MPa. Some steam is extracted at this pressure to
heat the feed-water in an open feed-water heater. The rest of the steam is reheated
to 500°C and is expanded in the low-pressure turbine to the condenser pressure of
10 kPa. Show the cycle on a T-s diagram with respect to saturation lines, and
determine (a) the mass flow rate of steam through the boiler and (b) the thermal
efficiency of the cycle.
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