I have asked this question but it was rejected. I am submitting the problems to check my understanding. I completed the problems already and I am not being graded on them.If you are able to, please state your assumptions and table. Feed water heaters are used to preheat water before entering the boiler of a steam power plant by mixingcold water with steam bled from some middle stages of the turbine. The feed water heater shown in thefigure is assumed steady-flow. The device is not fully insulated, and 400 kW heat is rejected to theenvironment at the temperature of 27°C during the process. Calculate the rate of total entropy generationfor the system. States at inlets and outlet of the feed water are specified in the figure.O = 400 kWlossState 3: P2=1.4 MPaT2= 180°CState 1: P1=1.4 MPam, = 5 kg / s%3DT= 50°CFeed WaterHeaterState 2: P2=1.4 MPaT2= 300°C

The temperature of the surrounding is given as:

Answered: Feed water heaters are used to preheat…

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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I have asked this question but it was rejected. I am submitting the problems to check my understanding. I completed the problems already and I am not being graded on them.

If you are able to, please state your assumptions and table.

Feed water heaters are used to preheat water before entering the boiler of a steam power plant by mixing
cold water with steam bled from some middle stages of the turbine. The feed water heater shown in the
figure is assumed steady-flow. The device is not fully insulated, and 400 kW heat is rejected to the
environment at the temperature of 27°C during the process. Calculate the rate of total entropy generation
for the system. States at inlets and outlet of the feed water are specified in the figure.
O = 400 kW
loss
State 3: P2=1.4 MPa
T2= 180°C
State 1: P1=1.4 MPa
m, = 5 kg / s
%3D
T= 50°C
Feed Water
Heater
State 2: P2=1.4 MPa
T2= 300°C

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