Reference no: EM132615604

The brick work of a terrace is built up of layers laid of fire clay and red brick and the space between the two layers of brick work is filled with crushed diatomite brick. The fire clay is 120 mm thick. The thickness of the diatomite filling is 50 mm and thickness of the red brick layer is 250 mm. The thermal conduction of these three materials are 0.93, 0.13, 0.7 W/m.oC.

What should be the thickness of red brick layer of the brick work which is to be laid without the diatomite filling between the two layers so that the heat flux through the brick work remain constant.