Example 1 The composite wall of an oven consists of three materials as shown below, what is the heat flux, q through the wall? And the thermal conductivity of the middle layer, k,?

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)
8th Edition
ISBN:9781305387102
Author:Kreith, Frank; Manglik, Raj M.
Publisher:Kreith, Frank; Manglik, Raj M.
Chapter2: Steady Heat Conduction
Section: Chapter Questions
Problem 2.63P
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2.8 WORKED EXAMPLES
We will solve these examples in the lecture together.
Example 1
The composite wall of an oven consists of three materials as shown below,
what is the heat flux, q' through the wall? And the thermal conductivity of the
middle layer, k,?
hacoe 25 W/mK
Tacor 800°C
h- 20 W/mK
50 w/mk T- 20°C
k-20 W/mk
600°c
0.3m
0.15m
0.15m
Transcribed Image Text:2.8 WORKED EXAMPLES We will solve these examples in the lecture together. Example 1 The composite wall of an oven consists of three materials as shown below, what is the heat flux, q' through the wall? And the thermal conductivity of the middle layer, k,? hacoe 25 W/mK Tacor 800°C h- 20 W/mK 50 w/mk T- 20°C k-20 W/mk 600°c 0.3m 0.15m 0.15m
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