Determine the heat flow rate through the wall.

Consider heat transfer through an insulated frame wall of a house. The thermal conductivity of the wall is 0.055 W/(m・°C). The wall is 0.15 m thick and has an area of 15 m2. The inside air temperature is 20°C and the heat transfer coefficient for convection between the wall and the inside air is 2.6 W/(m・°C). On the outside of the wall, the heat transfer coefficient for convection between the wall and the outside air is 10.4 W/(m・°C) and the outside air temperature is –10°C. Determine the heat flow rate through the wall.

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