GATE ME · 2020 · ME
Question 24: Heat-Transfer
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Question 24
MENAT1 markNeeds review
In a furnace, the inner and outer sides of the brick wall (
W/m.K) are maintained at 1100°C and 700°C, respectively as shown in figure. The brick wall is covered by an insulating material of thermal conductivity
. The thickness of the insulation is 1/4th of the thickness of the brick wall. The outer surface of the insulation is at 200°C. The heat flux through the composite walls is 2500 W/m
. The value of
is ______ W/m.K (round off to one decimal place). 
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2020ME
GATE ME 2020 · Paper 2
Mechanical Engineering · Original paper archive
- Section
- Mechanical Engineering
- Question type
- Numerical answer (NAT)
- Marks
- 1 mark
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