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  3. the thermal conductivity of an insulating material

The thermal conductivity of an insulating material used over a hot pipe varies as k =...

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Mechanical Engineering

The thermal conductivity of an insulating material used over ahot pipe varies as k = 0.0545 (1
+ 28.4 × 10–4 T) where T is in °C and k is in W/mK. This insulationis used for a thickness of
12 cm over a pipe of diameter 0.6 m. The pipe surface is at 300°Cand the outside insulation
temperature is 60°C. Determine the heat flow for a length of 5 m.Also find the mid layer
temperature.

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