Heat transfer

Heat transfer problem 15

What is the thickness of a layer of styrofoam that we need to coat a 30 cm thick brick wall so that the heat flow rate by conduction through surface of the wall will be 3 W? The difference between the temperatures of the inner and outer sides of the coated wall is . The thermal conductivity of hollow bricks is 0.6 and that of styrofoam is 0.04 .


material editor: Gabriel Amakhabi