A 2 meter diameter disk made of brick fire 30 centimeters is in contact with a 3 meter by 2 meter insulating brick wall that is 3 centimeters thick. Determine the temperature between the surfaces of wood and insulating wall. The temperature on the free sides of the wood and insulating brick is 60 degrees Celsius and 50 degrees Celsius respectively. The thermal conductivity of the wood is 0.47 W/m-K and 1.15 W/m-K for the insulating brick wall. How long would it take to generate a power of 20 watts.

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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.