thx

A composite wall is composed of 15cm of material with a thermal conductivity of 1.0W/mK and a layer of insulation with a thermal conductivity of 0.045W/(mK). If the inside wall (insulation side) temperature is 22C and the outside wall temperature is 10C, determine the thickness of insulation required to have a heat flux of 8W/m2. PROBLEM \# 3 [ID Plane wall conduction (20 pts)] Consider a double glazed window measuring 0.60m by 0.30m. It is comprised of two 8mm thick glass plates with an 8mm air gap in between. The inside air temperature is 20C, the outside air temperature is 20C, whilst the inside and outside heat transfer coefficients are 10W/(m2K) and 100W/(m2K) respectively. Compute the rate of heat transfer through the window