Question: A steel pipe with a 4 cm outer diameter is covered with 6mm asbestos insulation ( K= 0.166 W/m.) followed by a 1.5 cm

A steel pipe with a 4 cm outer diameter is covered with

A steel pipe with a 4 cm outer diameter is covered with 6mm asbestos insulation ( K= 0.166 W/m.) followed by a 1.5 cm layer of fiber-glass insulation ( K = 0.0485W/m.). The pipe-wall temp. is 250 , and the outside insulation temp. is 40 . Calculate the interface temp. between the asbestos and fiber glass.

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