DAirL-A,, T,A,, T,(a) Determine the maximum possible heat removal ratethrough the fin.(b) What fin length would provide a close approxima-tion to the heat rate found in part (a)? Hint: Refer toExample 3.9.(c) Determine the fin effectiveness, &p(d) What is the percentage increase in the heat ratefrom A, due to installation of the fin?11t 7.53 Air at 27°C and a velocity of 5 m/s passes over the smallregion A, (20 mm X 20 mm) on a large surface, which ismaintained at T, = 127°C. For these conditions, 0.5 Wis removed from the surface A,. To increase the heatremoval rate, a stainless steel (AISI 304) pin fin ofdiameter 5 mm is affixed to A,, which is assumed toremain at T, = 127°C.

S Air at 27°C and a velocity of 5 m/s passes over the small region A, (20 mm x 20 mm) on a large surface, which is maintained at T, = 127°C. For these conditions, 0.5 W is removed from the surface A To increase the heat removal rate, a stainless steel (AISI 304) pin fin of diameter 5 mm is affixed to A, which is assumed to remain at T, = 127°C.

S Air at 27°C and a velocity of 5 m/s passes over the small region A, (20 mm x 20 mm) on a large surface, which is maintained at T, = 127°C. For these conditions, 0.5 W is removed from the surface A To increase the heat removal rate, a stainless steel (AISI 304) pin fin of diameter 5 mm is affixed to A, which is assumed to remain at T, = 127°C.

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

D
Air
L
-A,, T,
A,, T,
(a) Determine the maximum possible heat removal rate
through the fin.
(b) What fin length would provide a close approxima-
tion to the heat rate found in part (a)? Hint: Refer to
Example 3.9.
(c) Determine the fin effectiveness, &p
(d) What is the percentage increase in the heat rate
from A, due to installation of the fin?
11t

7.53 Air at 27°C and a velocity of 5 m/s passes over the small
region A, (20 mm X 20 mm) on a large surface, which is
maintained at T, = 127°C. For these conditions, 0.5 W
is removed from the surface A,. To increase the heat
removal rate, a stainless steel (AISI 304) pin fin of
diameter 5 mm is affixed to A,, which is assumed to
remain at T, = 127°C.

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