Water (10 kg/s) at 1.0 bar pressure and 50 °C is pumped to a pressure of 10 bar, then fed to a boiler. The net heat input to the boiler is 29,490 kJ/s. The boiler produces steam at 10 bar, which then enters the turbine. The exhaust leaving the turbine is saturated steam at 1 bar pressure. Calculate the pump work and turbine work (kJ/s) for this system. What is the thermal efficiency n of the system, if n- |(net work out)/(heat in)? Steam tables are provided at the end of the exam. %3D 29,490 kJ/s- Pump Turbine Ws Boiler feedwater 10 kg/s 1.0 bar-1 50°C -2- Turbine 10 bar 50°C Boiler -Pump Ws
Water (10 kg/s) at 1.0 bar pressure and 50 °C is pumped to a pressure of 10 bar, then fed to a boiler. The net heat input to the boiler is 29,490 kJ/s. The boiler produces steam at 10 bar, which then enters the turbine. The exhaust leaving the turbine is saturated steam at 1 bar pressure. Calculate the pump work and turbine work (kJ/s) for this system. What is the thermal efficiency n of the system, if n- |(net work out)/(heat in)? Steam tables are provided at the end of the exam. %3D 29,490 kJ/s- Pump Turbine Ws Boiler feedwater 10 kg/s 1.0 bar-1 50°C -2- Turbine 10 bar 50°C Boiler -Pump Ws
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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plz help i am not sure if this right
![2
Apミ9 Bar -900 KpA
Wes 0.0102 m
m²
we =9. 108 0/s [N.M =J]
900N
m =J I
We= Hout- thin
Hrant = Jaburabre d
Sakurabe d
こ
こ
eam at 1BAR
H=2675Kg from teae table
2 6750 KJ
Hrouts m Fi
lokg (z675 KiJ
こ
こ
Hrin
へ、
Super heatsteam ab
10 Bor
??
Te =
こ
OKe (5.0Lコ )(Ta-323)K
)(な
29490 KJ
10kg
こ
Te 12.8K
アニ912-8
) at 701Ber
KJ
こ
=> in = ni Fl
ニ 1oCs (376S ko )
ニ
に)
こ378 50 K/
こ Hout- tin
く
26750-37830) K5/3
こ- |||00 Jr
1=
I Waet!
( Wy- Wp)
こ
Qin
Qin
I1100
し-0376
こ
29490](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ff4dfc165-1571-419f-99fc-a4587d76c340%2Fb2507f18-48bc-4f90-b159-785b6a121f60%2Fpjuok_processed.jpeg&w=3840&q=75)
Transcribed Image Text:2
Apミ9 Bar -900 KpA
Wes 0.0102 m
m²
we =9. 108 0/s [N.M =J]
900N
m =J I
We= Hout- thin
Hrant = Jaburabre d
Sakurabe d
こ
こ
eam at 1BAR
H=2675Kg from teae table
2 6750 KJ
Hrouts m Fi
lokg (z675 KiJ
こ
こ
Hrin
へ、
Super heatsteam ab
10 Bor
??
Te =
こ
OKe (5.0Lコ )(Ta-323)K
)(な
29490 KJ
10kg
こ
Te 12.8K
アニ912-8
) at 701Ber
KJ
こ
=> in = ni Fl
ニ 1oCs (376S ko )
ニ
に)
こ378 50 K/
こ Hout- tin
く
26750-37830) K5/3
こ- |||00 Jr
1=
I Waet!
( Wy- Wp)
こ
Qin
Qin
I1100
し-0376
こ
29490
![8:36 PM Tue Dec 7
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T
Water (10 kg/s) at 1.0 bar pressure and 50 °C is pumped to a pressure of 10 bar,
then fed to a boiler. The net heat input to the boiler is 29,490 kJ/s. The boiler produces steam
at 10 bar, which then enters the turbine. The exhaust leaving the turbine is saturated steam at
1 bar pressure. Calculate the pump work and turbine work (kJ/s) for this system. What is the
thermal efficiency n of the system, if ŋ= |(net work out)/(heat in)? Steam tables are provided
at the end of the exam.
29,490 kJ/s-
Pump
Turbine Ws
Boiler feedwater
10 kg/s
1.0 bar-1-
50°C
-2-
Turbine
10 bar
50°C
Boiler
-Pump Ws
29490 KJ/s
Boiler fed
Waber
10 kg
10 BAR
50°c
pump
Jaburabed teane
1 Bar
50° C
1.0 BaJ
We-
ů =
Tokg
l988.14kg
VDP
こ
i : 0:01012
= 0.01012 ni
2
Apミ9 Bar =900 KpA
"/m²
wp= ]
0.0102 mì
900N
9.108 0/s N.M=J
m²
WF= Hout- thin
Hrant = Jaburabe d
こ
Jeam at 1BAR
H=2675Kg from Stean table
26750 KJ
Hrout- mH
lokg (2675 KeJ
こ
T=
HTin -
Super heatsteam
at
10 Bor
Cr AT
Te =
??
こ](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ff4dfc165-1571-419f-99fc-a4587d76c340%2Fb2507f18-48bc-4f90-b159-785b6a121f60%2Fjil45lo_processed.png&w=3840&q=75)
Transcribed Image Text:8:36 PM Tue Dec 7
*C 76%
レ
Q Elem Chem Engr
Home
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Draw
View
Class Notebook
T
Water (10 kg/s) at 1.0 bar pressure and 50 °C is pumped to a pressure of 10 bar,
then fed to a boiler. The net heat input to the boiler is 29,490 kJ/s. The boiler produces steam
at 10 bar, which then enters the turbine. The exhaust leaving the turbine is saturated steam at
1 bar pressure. Calculate the pump work and turbine work (kJ/s) for this system. What is the
thermal efficiency n of the system, if ŋ= |(net work out)/(heat in)? Steam tables are provided
at the end of the exam.
29,490 kJ/s-
Pump
Turbine Ws
Boiler feedwater
10 kg/s
1.0 bar-1-
50°C
-2-
Turbine
10 bar
50°C
Boiler
-Pump Ws
29490 KJ/s
Boiler fed
Waber
10 kg
10 BAR
50°c
pump
Jaburabed teane
1 Bar
50° C
1.0 BaJ
We-
ů =
Tokg
l988.14kg
VDP
こ
i : 0:01012
= 0.01012 ni
2
Apミ9 Bar =900 KpA
"/m²
wp= ]
0.0102 mì
900N
9.108 0/s N.M=J
m²
WF= Hout- thin
Hrant = Jaburabe d
こ
Jeam at 1BAR
H=2675Kg from Stean table
26750 KJ
Hrout- mH
lokg (2675 KeJ
こ
T=
HTin -
Super heatsteam
at
10 Bor
Cr AT
Te =
??
こ
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