A steam pipe is to be lined with two layers of insulating materials of different thermal conductivities. For the minimum heat transfer,
A
The better insulation must be put inside
B
The better insulation must be put outside
C
One could place either insulation on either side
D
One should take into account the steam temperature before deciding as to which insulation is put where
Correct Answer: The better insulation must be put inside
A steam pipe is to be lined with two layers of insulating materials of different thermal conductivities. For the minimum heat transfer,The better insulation must be put inside