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GATE ME 2014 Set 2 — Question 54

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NAT+2 / -0MediumComposite Wall ConductionConductionHeat Transfer

Heat Transfer → Conduction → Composite Wall Conduction

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Question

A material P of thickness 1 mm1\text{ mm} is sandwiched between two steel slabs, as shown in the figure below. A heat flux 10 kW/m210\text{ kW/m}^2 is supplied to one of the steel slabs as shown. The boundary temperatures of the slabs are indicated in the figure. Assume thermal conductivity of this steel is 10 W/m.K10\text{ W/m.K}. Considering one-dimensional steady state heat conduction for the configuration, the thermal conductivity (kk, in W/m.K\text{W/m.K}) of material P is _______
Diagram showing a material P of thickness 1 mm sandwiched between two steel slabs of 20 mm thickness each. Heat flux q'' = 10 kW/m^2 is applied to the left face. Boundary temperatures are T1 = 500 K and T2 = 360 K.
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