Assuming that the lower and upper surfaces of a multi-layer wall shown in the figure are insulated and the heat loss is one-dimensional, draw the thermal resistance circuit of the system, a) Find the inner conduction coefficient of material B? b) Find the total heat transfer coefficient by drawing the thermal resistance circuit of the wall? c) Since the height of the wall is 3 m and its length is 10 m, find the heat transfer rate from the wall? d) Find the temperature between material A and material B?

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Conduction and Convection

When energy travels from one object to another it is said to have undergone heat transfer. Heat transfer is nothing but the transfer of thermal energy or internal energy from one thing to another, like e.g., when a vessel with water, kept on top of a burner, heats up because of the flame underneath it.