Q1/The thermal conductivity 14.4w/m.k for the block of stainless steel shown below is well insulated on the front and back surfaces, and the temperature in the block varies linearly in both the x- and y directions, Find: The heat fluxes and heat flows in the x- and y-directions.

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Chapter8: Natural Convection
Section: Chapter Questions
Problem 8.35P
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Q1/The thermal conductivity 14.4w/m.k for the block of stainless
steel shown below is well insulated on the front and back surfaces,
and the temperature in the block varies linearly in both the x- and
y directions,
Find: The heat fluxes and heat flows in the x- and y-directions.
5 cm
15°C
10°C
-5 cm -
10 cm
5°C
0°C
Q2-Consider a two layer composite wall of copper and Teflon as
shown below. The copper has a thickness of 10cm but the
thickness of the Teflon is to be determined. The temperature on
the left boundary is equal to 200 C and on the right boundary 25C.
Determine the thickness of the Teflon layer so that the heat flux
is equal to 200W/m2.
L2
T = 200C
Te = 25 C
L1 = 01m
TA
T3
%3D
- 007 = 5
coper
télon
Tc
Transcribed Image Text:Q1/The thermal conductivity 14.4w/m.k for the block of stainless steel shown below is well insulated on the front and back surfaces, and the temperature in the block varies linearly in both the x- and y directions, Find: The heat fluxes and heat flows in the x- and y-directions. 5 cm 15°C 10°C -5 cm - 10 cm 5°C 0°C Q2-Consider a two layer composite wall of copper and Teflon as shown below. The copper has a thickness of 10cm but the thickness of the Teflon is to be determined. The temperature on the left boundary is equal to 200 C and on the right boundary 25C. Determine the thickness of the Teflon layer so that the heat flux is equal to 200W/m2. L2 T = 200C Te = 25 C L1 = 01m TA T3 %3D - 007 = 5 coper télon Tc
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