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Consider a 12 m high and 2 m wide double pane window consisting of two 3 mm thick layers of glass

Consider a 1.2-m-high and 2-m-wide double-pane window consisting of two 3-mm-thick layers of glass (k = 0.78 W/m·K) separated by a 12-mm-wide stagnant air space (k = 0.026 W/m·K). 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 24°C while the temperature of the outdoors is -25°C. Take the convection heat transfer coefficients on the inner and outer surfaces of the window to be

h1 = 10 W/m2 ·K and h2 = 25 W/m2 ·K, and disregard any heat transfer by radiation.

 

 

 

Jul 21 2020 View more View Less

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