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
A bar with surface temperature (310) oC and diameter (9.5) mm, temperature 20
oC and heat convection
It is contained in a fluid with a coefficient of 95 W / m2K. The top of this bar is heat conduction
It is desired to be coated with bakelite with a coefficient of 2.5 W / mK up to the critical radius thickness.
a) the critical radius of the bakelite coating and the heat transfer at the critical radius per unit length.
Found it. b) heat transitions per unit length for uninsulated and bakelite (insulation) coated rod
You calculate. Comment the results
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