Question: A steam pipe 1 0 cm in diameter is covered with two layers of insulation each having thickness of 2 . 5 cm . The

A steam pipe

10

cm in diameter is covered with two layers of insulation each having thickness of

2.5

.

The average thermal conductivity of

1

material is three times of other and surface tenpmperature of steam pipe is fixed.Examine the position of better insulating layer for heat dissipation to be minimum. What percentage of heat dissipation is saved from arrangement.

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