Total temperature difference during steady-state heat conduction in multi-layer planar walls
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In the steady-state heat conduction of a multi-layer planar wall, what is the driving force, namely the total temperature difference between the inner and outer wall surfaces? Is the total thermal resistance the sum of the reciprocals of the thermal resistances of each layer?
In the steady-state heat conduction of multi-layer planar walls, the heat transfer rate in each layer is equal; this is similar to resistors in series, where the current is the same and the voltage is proportional to the resistance； Therefore, in this case, the total thermal resistance is equal to the sum of the thermal resistances of each layer