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A power plant operates on a regenerative vapor power cycle with one open feedwater heater. Steam enters the first turbine stage at 11 MPa, 600 ° C and expands to 1 MPa, where some of the steam is extracted and diverted to the open feedwater heater operating at 1 MPa. The remaining steam expands through the second turbine stage to a condenser pressure of 6 kPa. Saturated liquid exits the open feedwater heater at 1 MPa. The net power output is 264 MW. Determine (a) the thermal efficiency of the cycle, (b) the mass flow rate into the first turbine stage and (c) the fraction of flow extracted where bleeding occurs. (d) What-if Scenario: What would the net power developed be if the bleeding pressure were increased to 1.2 MPa?[E

A power plant operates on a regenerative vapor power cycle with one open feedwater heater. Steam enters the first turbine stage at 11 MPa, 600 ° C and expands to 1 MPa, where some of the steam is extracted and diverted to the open feedwater heater operating at 1 MPa. The remaining steam expands through the second turbine stage to a condenser pressure of 6 kPa. Saturated liquid exits the open feedwater heater at 1 MPa. The net power output is 264 MW. Determine (a) the thermal efficiency of the cycle, (b) the mass flow rate into the first turbine stage and (c) the fraction of flow extracted where bleeding occurs. (d) What-if Scenario: What would the net power developed be if the bleeding pressure were increased to 1.2 MPa?[E

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
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Solve the Problem. A power plant operates on a regenerative vapor power cycle with one open feedwater heater. Steam enters the first turbine stage at 11 MPa, 600 ° C and expands to 1 MPa, where some of the steam is extracted and diverted to the open feedwater heater operating at 1 MPa. The remaining steam expands through the second turbine stage to a condenser pressure of 6 kPa. Saturated liquid exits the open feedwater heater at 1 MPa. The net power output is 264 MW. Determine (a) the thermal efficiency of the cycle, (b) the mass flow rate into the first turbine stage and (c) the fraction of flow extracted where bleeding occurs. (d) What-if Scenario: What would the net power developed be if the bleeding pressure were increased to 1.2 MPa?[E
Transcribed Image Text:Solve the Problem. A power plant operates on a regenerative vapor power cycle with one open feedwater heater. Steam enters the first turbine stage at 11 MPa, 600 ° C and expands to 1 MPa, where some of the steam is extracted and diverted to the open feedwater heater operating at 1 MPa. The remaining steam expands through the second turbine stage to a condenser pressure of 6 kPa. Saturated liquid exits the open feedwater heater at 1 MPa. The net power output is 264 MW. Determine (a) the thermal efficiency of the cycle, (b) the mass flow rate into the first turbine stage and (c) the fraction of flow extracted where bleeding occurs. (d) What-if Scenario: What would the net power developed be if the bleeding pressure were increased to 1.2 MPa?[E
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