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5. Steam steadily expands through an adiabatic turbine from 400 °C and 3.0 MPa to 200 °C and 0.2 MPa at a constant mass flow rate of 1.5 kg/s. The changes of kinetic energy and potential energy are negligible. (a) Compute the change of internal energy (in kJ/s) of the steam after the expansion. (...) (b) Use the energy balance to find the power (in kJ/s) developed by this turbine. (c) Use the entropy balance to find the rate of entropy generation (in kJ/(K/s)) of this turbine. Below are the steam data. You may not need all the data provided. T, °C P, MPa 3.0 0.2 State Initial 400 Final 200 , m³/kg Û, kJ/kg Ĥ, kJ/kg S, kJ/(kg.K) 6.9212 7.5066 0.0994 1.0803 2932.8 2654.4 3230.9 2870.5

5. Steam steadily expands through an adiabatic turbine from 400 °C and 3.0 MPa to 200 °C and 0.2 MPa at a constant mass flow rate of 1.5 kg/s. The changes of kinetic energy and potential energy are negligible. (a) Compute the change of internal energy (in kJ/s) of the steam after the expansion. (...) (b) Use the energy balance to find the power (in kJ/s) developed by this turbine. (c) Use the entropy balance to find the rate of entropy generation (in kJ/(K/s)) of this turbine. Below are the steam data. You may not need all the data provided. T, °C P, MPa 3.0 0.2 State Initial 400 Final 200 , m³/kg Û, kJ/kg Ĥ, kJ/kg S, kJ/(kg.K) 6.9212 7.5066 0.0994 1.0803 2932.8 2654.4 3230.9 2870.5

Introduction to Chemical Engineering Thermodynamics
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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5. Steam steadily expands through an adiabatic turbine from 400 °C and 3.0 MPa to 200 °C and 0.2 MPa at a constant mass flow rate of 1.5 kg/s. The changes of kinetic energy and potential energy are negligible. (a) Compute the change of internal energy (in kJ/s) of the steam after the expansion. ( c's) (b) Use the energy balance to find the power (in kJ/s) developed by this turbine. (c) Use the entropy balance to find the rate of entropy generation (in kJ/(K/s)) of this turbine. Below are the steam data. You may not need all the data provided. State Initial 400 Final 200 T, °C P, MPa 3.0 0.2 , m³/kg Û, kJ/kg Ĥ, kJ/kg S, kJ/(kg.K) 6.9212 7.5066 0.0994 1.0803 2932.8 2654.4 3230.9 2870.5
Transcribed Image Text:5. Steam steadily expands through an adiabatic turbine from 400 °C and 3.0 MPa to 200 °C and 0.2 MPa at a constant mass flow rate of 1.5 kg/s. The changes of kinetic energy and potential energy are negligible. (a) Compute the change of internal energy (in kJ/s) of the steam after the expansion. ( c's) (b) Use the energy balance to find the power (in kJ/s) developed by this turbine. (c) Use the entropy balance to find the rate of entropy generation (in kJ/(K/s)) of this turbine. Below are the steam data. You may not need all the data provided. State Initial 400 Final 200 T, °C P, MPa 3.0 0.2 , m³/kg Û, kJ/kg Ĥ, kJ/kg S, kJ/(kg.K) 6.9212 7.5066 0.0994 1.0803 2932.8 2654.4 3230.9 2870.5
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