1) In an ideal regenerative Rankine cycle, vapor enters the turbine at 7MPa and 550°C. Steam first expands to 0.8MPa where some of the steam is extracted and transferred to an open feedwater heater (FWH) operating at 0.8MPa. The remaining steam expands through the second-stage turbine to the condenser pressure of 10kPa. Saturated liquid exits the open FWH at 0.8MPa and water enters pump I as a saturated liquid. Determine a) the power output of the cycle in kJ/kg b) the thermal efficiency of the cycle c) the heat transfer from the condenser to the environment, in kJ/kg. Boiler Pump II Open FWH Pump I Turbine Condenser

1) In an ideal regenerative Rankine cycle, vapor enters the turbine at 7MPa and 550°C. Steam first expands to 0.8MPa where some of the steam is extracted and transferred to an open feedwater heater (FWH) operating at 0.8MPa. The remaining steam expands through the second-stage turbine to the condenser pressure of 10kPa. Saturated liquid exits the open FWH at 0.8MPa and water enters pump I as a saturated liquid. Determine a) the power output of the cycle in kJ/kg b) the thermal efficiency of the cycle c) the heat transfer from the condenser to the environment, in kJ/kg. Boiler Pump II Open FWH Pump I Turbine Condenser

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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Question

1) In an ideal regenerative Rankine cycle, vapor enters the turbine at 7MPa and 550°C. Steam
first expands to 0.8MPa where some of the steam is extracted and transferred to an open
feedwater heater (FWH) operating at 0.8MPa. The remaining steam expands through the
second-stage turbine to the condenser pressure of 10kPa. Saturated liquid exits the open FWH
at 0.8MPa and water enters pump I as a saturated liquid. Determine
a) the power output of the cycle in kJ/kg
b) the thermal efficiency of the cycle
c) the heat transfer from the condenser to the environment, in kJ/kg.
Boiler
Pump II
Open
FWH
Pump 1
Turbine
Condenser

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