Cosidder a 1.2-m-high and 2-m-wide double-pane win-dow consisting of two 3-mm-thick layers of glass (k = 0.78

Question:

Cosidder a 1.2-m-high and 2-m-wide double-pane win-dow consisting of two 3-mm-thick layers of glass (k = 0.78 W/m. oC) separated by a 12-mm-wide stagnant air space (k = 0.026 W.m. oC). Determine the steady rate of heat transfer through this double-pane window and the temperature of its inner surface for a day during which the room is maintained at 24oC while the temperature of the outdoors is €“ 5oC. Take the convenction heat tranfer coeficients on the ineer and outer?