EXAMPLE Consider a long resistance wire of radius ₁ conductivity kwire =15 W/m °C in which heat is generated uniformly as a result of resistance heating at a constant rate of g = 50 W/cm3. The wire is embedded in a 0.5-cm-thick layer of ceramic whose thermal conductivity is kceramic = 1.2 W/m °C. If the outer surface temperature of the ceramic layer is measured to be Ts = 45°C, determine the temperatures at the center of the resistance wire and the interface of the wire and the ceramic layer under steady conditions. ) ។ . . Interface Mech. Eng. UOK Wire = 0.2 cm and thermal Ceramic layer T₁ = 45°C ۳۰/۱۰/۲۰۱۳
EXAMPLE Consider a long resistance wire of radius ₁ conductivity kwire =15 W/m °C in which heat is generated uniformly as a result of resistance heating at a constant rate of g = 50 W/cm3. The wire is embedded in a 0.5-cm-thick layer of ceramic whose thermal conductivity is kceramic = 1.2 W/m °C. If the outer surface temperature of the ceramic layer is measured to be Ts = 45°C, determine the temperatures at the center of the resistance wire and the interface of the wire and the ceramic layer under steady conditions. ) ។ . . Interface Mech. Eng. UOK Wire = 0.2 cm and thermal Ceramic layer T₁ = 45°C ۳۰/۱۰/۲۰۱۳
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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Transcribed Image Text:EXAMPLE
=
wire
Consider a long resistance wire of radius ₁ 0.2 cm and thermal
conductivity k = 15 W/m . °C in which heat is generated uniformly as
a result of resistance heating at a constant rate of g = 50 W/cm3. The
wire is embedded in a 0.5-cm-thick layer of ceramic whose thermal
conductivity is k = 1.2 W/m °C. If the outer surface temperature
of the ceramic layer is measured to be Ts = 45°C, determine the
temperatures at the center of the resistance wire and the interface of
the wire and the ceramic layer under steady conditions.
ceramic
17
Interface
Mech. Eng. UOK
Wire
Ceramic layer
T₁=45°C
۳۰/۱۰/۲۰۱۳
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