a plane wall thermal conductivity 102 wmoc of, Mechanical Engineering

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a plane wall thermal conductivity 102 wmoc of

A plane wall (thermal conductivity = 10.2 w/m^oc) of 100 mm thickness and area 3m² has steady surface temperature of 170^oc and 100^oc.

Evaluate :-

(i) The temperature gradient in the flow direction.

(ii)The ratio of flow of heat across the plane wall.

(b) Calculate the heat transfer by convection over a surface of 0.75m² if the surface is at 200^oc and the fluid is at 80^oc. The value of convective heat transfer co-efficient is 25 w/m^{2 o}c.

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