9-1-39 [reheatGen-500C] Consider a reheat-regenerative vapor power cycle with two feedwater heaters, a closed feedwater heater and an open feedwater heater. Steam enters the first turbine at 10 MPa, 500 ° C and expands to 0.8 MPa. The steam is reheated to 440 ° C before entering the second turbine, where it expands to the condenser at a pressure of 0.007 MPa. Steam is extracted from the first turbine at 2 MPa and fed to the closed feedwater heater. Feedwater leaves the closed heater at 205 ° C, 10 MPa and condensate exits as saturated liquid at 2 MPa. The condensate is trapped into the open feedwater heater. Steam extracted from second turbine at 0.3 MPa is also fed into the open heater, which operates at 0.3 MPa. The steam exiting the feedwater heater is saturated liquid at 0.3 MPa. The feedwater open net power output of the cycle is 100 MW. There is no stray heat transfer from any component to its surroundings. If the working fluid experiences no irreversibilities as it passes through the turbines, pumps, steam generator, reheater and condenser, determine (a) the thermal efficiency of the cycle and (b) the mass flow rate of steam entering the first turbine. EdR Probkm). ITEST Salutiol Answers: (a) 44 0%, (b) 75 kg/a High-P Turbine Low-P Turbine Boiler Reheater Closed FWU Орen FWH Pump Condenser Pump Trap

Elements Of Electromagnetics
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ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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(THERMODYNAMICS 2 - REHEAT REGENERATIVE CYCLE AND ENGINE) Show complete and step by step solution with ts diagram.
9-1-39 [reheatGen-500C] Consider a reheat-regenerative
vapor power cycle with two feedwater heaters, a closed
feedwater heater and an open feedwater heater. Steam
enters the first turbine at 10 MPa, 500 ° C and expands to
0.8 MPa. The steam is reheated to 440 ° C before
entering the second turbine, where it expands to the
condenser at a pressure of 0.007 MPa. Steam is
extracted from the first turbine at 2 MPa and fed to the
closed feedwater heater. Feedwater leaves the closed
heater at 205°C, 10 MPa and condensate exits as
saturated liquid at 2 MPa. The condensate is trapped into
the open feedwater heater. Steam extracted from second
turbine at 0.3 MPa is also fed into the open feedwater
heater, which operates at 0.3 MPa. The steam exiting the
open feedwater heater is saturated liquid at 0.3 MPa. The
net power output of the cycle is 100 MW. There is no
stray heat transfer from any component to its
surroundings. If the working fluid experiences no
irreversibilities as it passes through the turbines, pumps,
steam generator, reheater and condenser, determine (a)
the thermal efficiency of the cycle and (b) the mass flow
rate of steam entering the first turbine.
Edr Probkm).TEST Soalution
Answers (a) 44.6%, (b) 75 kg/s
High-P
Turbine
Low-P
Turbine
Boiler
Reheater
Closed
Орen
FWH
Pump
8)
Condenser
Pump
Trap
Transcribed Image Text:9-1-39 [reheatGen-500C] Consider a reheat-regenerative vapor power cycle with two feedwater heaters, a closed feedwater heater and an open feedwater heater. Steam enters the first turbine at 10 MPa, 500 ° C and expands to 0.8 MPa. The steam is reheated to 440 ° C before entering the second turbine, where it expands to the condenser at a pressure of 0.007 MPa. Steam is extracted from the first turbine at 2 MPa and fed to the closed feedwater heater. Feedwater leaves the closed heater at 205°C, 10 MPa and condensate exits as saturated liquid at 2 MPa. The condensate is trapped into the open feedwater heater. Steam extracted from second turbine at 0.3 MPa is also fed into the open feedwater heater, which operates at 0.3 MPa. The steam exiting the open feedwater heater is saturated liquid at 0.3 MPa. The net power output of the cycle is 100 MW. There is no stray heat transfer from any component to its surroundings. If the working fluid experiences no irreversibilities as it passes through the turbines, pumps, steam generator, reheater and condenser, determine (a) the thermal efficiency of the cycle and (b) the mass flow rate of steam entering the first turbine. Edr Probkm).TEST Soalution Answers (a) 44.6%, (b) 75 kg/s High-P Turbine Low-P Turbine Boiler Reheater Closed Орen FWH Pump 8) Condenser Pump Trap
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