Answered: A vertical cylindrical container is…

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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Question

I REALLY NEED THE ANSWER UNTIL 5:20PM PLEASE

A vertical cylindrical container is being cooled in ambient air at 25°C with no air circulation.
If the initial temperature of the container surface is 100°C, compute the surface
heat transfer coefficient due to natural convection during the initial cooling period. The
diameter of the container is 1 m, and it is 2m high.

HELP ME IF MY SOLUTION IS CORRECT, I THINK THIS IS NOT COMPLETE YET. KINDLY HELP ME PLEASE

Problem
4.17)
Cylinder
(Free Convection).
for
ver tical
O Nor
3. 211 X10
35L
(2.9773x1)
(20. 0298)e
317. 843
4.5238 X10
Nhn = a Nea
To + Ts
O Nka
hd
TE
2
else i
k
25 + (00
6.387 Nea"
3. 211 x100
he Nan .k
(217. 943 )(0.0281)
%3D
E0-125 +
62.5°C
2
froper ties of air
@ T: 62.5°C
O D
35L
38(2)
4.466 W/m²-Ic
D2
: 0. 151
P-1.0178
GO
7.6
62
P. 2.1975 xio
10
21.2
- lon. 25
0.0 281
Q = -hAVT
4m 느 0.161
x- 27.6
- 20.0293 XIo*
: 6.71
G2 -40
- -4.
Pr
70 - 66
29.2 - 27,6
'Yid 2ור.Ia
Naw o a CNea)"
4Tןר .Aן
uK: q=0.1
2104.553
ma 3

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