Question

Insulation is added in 3 cm layers over a steel pipe of 30 cm dia. The...

Insulation is added in 3 cm layers over a steel pipe of 30 cm dia. The convection on the outside
is 25 W/m2K. The conductivity of the material is 0.47 W/mK. Determine the total thermal
resistance for the addition of 5 such layers. Compare the % increase in resistance and %
increase in the volume of material over the first layer.

Engineering   Mechanical-Engineering   
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