A cylindriçal fuel rod (k= 30 W/m K) of 2 cm in diameter is encased in a concentric tube and cooled by water. The fuel rod generates heat uniformly at a rate of 100 MW/m, and the average temperature of the cooling water is 80°C with a convection heat transfer coefficient of 2500 W/m--K. The operating pressure of the cooling water is such that the surface temperature pf the fuel rod must be kept below 200°C to avoid the cooling water from reaching the critical heat flux (CHF). The crițical heat flux is a thermal limit at which a boiling crisis can occur that cause overheating on the fuel rod surface and lead to damage.
A cylindriçal fuel rod (k= 30 W/m K) of 2 cm in diameter is encased in a concentric tube and cooled by water. The fuel rod generates heat uniformly at a rate of 100 MW/m, and the average temperature of the cooling water is 80°C with a convection heat transfer coefficient of 2500 W/m--K. The operating pressure of the cooling water is such that the surface temperature pf the fuel rod must be kept below 200°C to avoid the cooling water from reaching the critical heat flux (CHF). The crițical heat flux is a thermal limit at which a boiling crisis can occur that cause overheating on the fuel rod surface and lead to damage.
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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A cylindriçal fuel rod (k 30 W/m K) of 2 cm in diameter is encased in a concentric tube and cooled by water. The fuel rod
generates heat uniformly at a rate of 100 MW/m, and the average temperature of the cooling water is 80°C with a
convection heat transfer coefficient of 2500 W/m4-K. The operating pressure of the cooling water is such that the surface
temperature pf the fuel rod must be kept below 200°C to avoid the cooling water from reaching the critical heat flux (CHF).
The crițical heat flux is a thermal limit at which a boiling crisis can occur that cause overheating on the fuel rod surface and
lead to damage.
ė ren = 100 MW/m3
%3D
Cooling water
Fuel rod
D=2 cm
2500 W/m2-K
Determine the temperature of the fuel rod surface.
(You must provide an answer before moving to the next part.)
The temperature of the fuei rod surface =
%3D
< Prev
Next>
ME
6.
9 jo
17°C Clear
ENG
12
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f4
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9.
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Transcribed Image Text:T
FL
%24
E
Tradi
G 0.169 iGen selec +
Launc
- SIS S
25 (25) V
Teleg
3 Drop
do,
-bf M Inbc
heducation.com/ext/map/index.html?_con%3Dcon&lexternal_browser%3D0&launchUrl=https%253A%252F%252Fnewconnect.mheducation.com%252F#/activity/c
Help
Save &
Saved
Required information
A cylindriçal fuel rod (k 30 W/m K) of 2 cm in diameter is encased in a concentric tube and cooled by water. The fuel rod
generates heat uniformly at a rate of 100 MW/m, and the average temperature of the cooling water is 80°C with a
convection heat transfer coefficient of 2500 W/m4-K. The operating pressure of the cooling water is such that the surface
temperature pf the fuel rod must be kept below 200°C to avoid the cooling water from reaching the critical heat flux (CHF).
The crițical heat flux is a thermal limit at which a boiling crisis can occur that cause overheating on the fuel rod surface and
lead to damage.
ė ren = 100 MW/m3
%3D
Cooling water
Fuel rod
D=2 cm
2500 W/m2-K
Determine the temperature of the fuel rod surface.
(You must provide an answer before moving to the next part.)
The temperature of the fuei rod surface =
%3D
< Prev
Next>
ME
6.
9 jo
17°C Clear
ENG
12
f3
f4
f5
9)
*
6)
%23
3
4.
5.
9.
8.
9.
R.
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