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9-1-35 [reheatGen-100MW] A power plant operates on an ideal reheat-regenerative Rankine cycle and has a net power output of 100 MW. Steam enters the high pressure turbine stage at 12 MPa, 550 °C and leaves at 0.9 MPa. Some steam is extracted at 0.9 MPa to heat the feedwater in an open feedwater heater. The rest of the steam is reheated to 500 °C and is expanded in the low pressure turbine to the condenser at a pressure of 8 kPa. Determine (a) the thermal efficiency of the cycle and (b) the mass flow rate of steam through the boiler. (c) What-if Scenario: What would the thermal efficiency be if the steam entered the turbine at 15 MPa? [Edt ProblemUTEST Soutenl

9-1-35 [reheatGen-100MW] A power plant operates on an ideal reheat-regenerative Rankine cycle and has a net power output of 100 MW. Steam enters the high pressure turbine stage at 12 MPa, 550 °C and leaves at 0.9 MPa. Some steam is extracted at 0.9 MPa to heat the feedwater in an open feedwater heater. The rest of the steam is reheated to 500 °C and is expanded in the low pressure turbine to the condenser at a pressure of 8 kPa. Determine (a) the thermal efficiency of the cycle and (b) the mass flow rate of steam through the boiler. (c) What-if Scenario: What would the thermal efficiency be if the steam entered the turbine at 15 MPa? [Edt ProblemUTEST Soutenl

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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(THERMODYNAMICS 2 - REHEAT REGENERATIVE CYCLE AND ENGINE) Show complete and step by step solution with ts diagram.
9-1-35 [reheatGen-100MW] A power plant operates on an ideal reheat-regenerative Rankine cycle and has a net power output of 100 MW. Steam enters the high pressure turbine stage at 12 MPa, 550 ° C and leaves at 0.9 MPa. Some steam is extracted at 0.9 MPa to heat the Fig. 9-1-35 feedwater in an open feedwater heater. The rest of the steam is reheated to 500 °C and is expanded in the low pressure turbine to the condenser at a pressure of 8 kPa. Determine (a) the thermal efficiency of the cycle and (b) the mass flow rate of steam through the boiler. (c) What-if Scenario: What would the thermal efficiency be if the steam entered the turbine at 15 MPa? [Edt ProblemlITEST Solutien) Answers: (a) 45 6%, (b) 672 kg/ a (c) 449 %
Transcribed Image Text:9-1-35 [reheatGen-100MW] A power plant operates on an ideal reheat-regenerative Rankine cycle and has a net power output of 100 MW. Steam enters the high pressure turbine stage at 12 MPa, 550 ° C and leaves at 0.9 MPa. Some steam is extracted at 0.9 MPa to heat the Fig. 9-1-35 feedwater in an open feedwater heater. The rest of the steam is reheated to 500 °C and is expanded in the low pressure turbine to the condenser at a pressure of 8 kPa. Determine (a) the thermal efficiency of the cycle and (b) the mass flow rate of steam through the boiler. (c) What-if Scenario: What would the thermal efficiency be if the steam entered the turbine at 15 MPa? [Edt ProblemlITEST Solutien) Answers: (a) 45 6%, (b) 672 kg/ a (c) 449 %
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