A steam power plant operating in a Rankine cycle has saturated vapor at 4.0 MPa leaving the boiler. The turbine exhausts to the condenser, operating at 75 kPa, and the mass flow rate of the working fluid is 5.0 kg/hr. The turbine efficiency is 0.85. Solve for the work produced by the turbine and the pump (in Watts), the heat transfer in the boiler (in Watts), and the Rankine cycle efficiency. efficiency. Efficiency of a turbine: W,(actual) H2. actual – H1 W,(isentropic) H2isentropic – H1 Rankine cycle efficiency: |Wturbinel- |Wpump| Qpoiler Wnet QH
A steam power plant operating in a Rankine cycle has saturated vapor at 4.0 MPa leaving the boiler. The turbine exhausts to the condenser, operating at 75 kPa, and the mass flow rate of the working fluid is 5.0 kg/hr. The turbine efficiency is 0.85. Solve for the work produced by the turbine and the pump (in Watts), the heat transfer in the boiler (in Watts), and the Rankine cycle efficiency. efficiency. Efficiency of a turbine: W,(actual) H2. actual – H1 W,(isentropic) H2isentropic – H1 Rankine cycle efficiency: |Wturbinel- |Wpump| Qpoiler Wnet QH
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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Transcribed Image Text:A steam power plant operating in a Rankine cycle has saturated vapor at 4.0 MPa leaving the boiler. The
turbine exhausts to the condenser, operating at 75 kPa, and the mass flow rate of the working fluid is 5.0
kg/hr. The turbine efficiency is 0.85. Solve for the work produced by the turbine and the pump (in Watts),
the heat transfer in the boiler (in Watts), and the Rankine cycle efficiency.
efficiency.
Efficiency of a turbine:
Н2,аctual — Hi
Н
W,(actual)
W,(isentropic) Hzisentropic - H1
Rankine cycle efficiency:
Wnet
turbi:
ритр
QH
Qpoiter
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