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Q.8. Super-heated steam at 875 K is flowing through a thick walled tube of stainless tube...

Q.8. Super-heated steam at 875 K is flowing through a thick walled tube of stainless tube with inside diameter 40mm and outside diameter50mm such that its inner wall is heated to a uniform temperature of 875K.To reduce heat loss, the tube is lagged with 30mm layer of asbestos insulation k=0.2 W/m.K. Calculate the heat loss using the electrical analogy per metre length if the outer surface temperature of the insulated tube is 350K.Thermal conductivity of steel=19 W/m.k.

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samet mamat answered 2 years ago
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