Thank You! That has really helped @haruspexharuspex said:
Heat transfer occurs through two walls through three main mechanisms: conduction, convection, and radiation. Conduction is the transfer of heat through direct contact between two materials, while convection is the transfer of heat through the movement of fluids. Radiation is the transfer of heat through electromagnetic waves.
The rate of heat transfer through two walls is affected by the material of the walls, the thickness of the walls, the temperature difference between the two sides of the walls, and the presence of any insulating materials.
The heat transfer through two walls can be reduced by using insulating materials, such as foam or fiberglass, to create a barrier between the two walls. Additionally, increasing the thickness of the walls and reducing the temperature difference between the two sides can also decrease the rate of heat transfer.
Conductive heat transfer occurs through direct contact between two materials, while convective heat transfer occurs through the movement of fluids. In the case of two walls, conductive heat transfer would occur between the two walls themselves, while convective heat transfer would occur between the air or fluid inside the walls.
Insulation acts as a barrier to heat transfer, reducing the rate at which heat can pass through the two walls. This is because insulation materials have low thermal conductivity, meaning they are not good conductors of heat. Therefore, they can help to trap heat inside a space or prevent heat from entering a space from the outside.
