2. Two wooden panels of a building's wall are separated by a layer of insulation (Layer B). The inside temperature of the building is 26°C while the outside temperature is 10°C. The thickness of the...

Extracted text: 2. Two wooden panels of a building's wall are separated by a layer of insulation (Layer B). The inside temperature of the building is 26°C while the outside temperature is 10°C. The thickness of the inner-most wood panel (Layer A) is 20mm. The thickness of the outer-most wood panel (Layer C) is 25mm. The thermal conductivities are 0.16 W/(m K) for wood and 0.08 W/(m K) for insulation. The convective heat transfer coefficient for air is h, = 1.95 W/(m² K) at 10°C and h2 = 2.0 W/(m² K) at 26°C. The surface area of the wall is 35m?. What thickness of insulation is required to keep the heat loss to 250 w? -.- Inside Outside A