ycle operates with one open feedwater heater. Steam enters the turbine at 12.5 MPa, 600°C and expands to 2.5 MPa, where some of the steam is extracted and diverted to the open feedwater heater. The remaining steam expands through the turbine to the condenser pressure of 10 kPa. Saturated liquid water exits the open feedwater heater at 2.5 MPa. The isentropic efficiency of the turbine is 90%, and 80% for each pump. If the mass flow rate of steam through the boiler is 90 kg/s, determine: (a) The amount of heat addition in the boiler (in kJ/kg),
ycle operates with one open feedwater heater. Steam enters the turbine at 12.5 MPa, 600°C and expands to 2.5 MPa, where some of the steam is extracted and diverted to the open feedwater heater. The remaining steam expands through the turbine to the condenser pressure of 10 kPa. Saturated liquid water exits the open feedwater heater at 2.5 MPa. The isentropic efficiency of the turbine is 90%, and 80% for each pump. If the mass flow rate of steam through the boiler is 90 kg/s, determine: (a) The amount of heat addition in the boiler (in kJ/kg),
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
A regenerative Rankine cycle operates with one open feedwater heater. Steam enters the turbine
at 12.5 MPa, 600°C and expands to 2.5 MPa, where some of the steam is extracted and diverted
to the open feedwater heater. The remaining steam expands through the turbine to the
condenser pressure of 10 kPa. Saturated liquid water exits the open feedwater heater at 2.5
MPa. The isentropic efficiency of the turbine is 90%, and 80% for each pump. If the mass flow
rate of steam through the boiler is 90 kg/s, determine:
(a) The amount of heat addition in the boiler (in kJ/kg),
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