Consider a 1.5-m-high and 2.4-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 airspace (k= 0.026 W/m-K). Determine the steady...

8Consider a 1.5-m-high and 2.4-m-wide double-pane window consisting of two 3-mm-thick layers of glass (k= 0.78 W/m-K) separated by<br>a 12-mm-wide stagnant airspace (k= 0.026 W/m-K). Determine the steady rate of heat transfer through this double-pane window and<br>the temperature of its inner surface for a day during which the room is maintained at 22°C while the temperature of the outdoors is<br>-5°C. Take the convection heat transfer coefficients on the inner and outer surfaces of the window to be hy = 10 W/m2-K and h = 25<br>W/m2.K, respectively, and disregard any heat transfer by radiation.<br>Glass<br>3<br>12<br>3 mm<br>Frame<br>The inner surface temperature of the window is|<br>°C.<br>

Extracted text: Consider a 1.5-m-high and 2.4-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 airspace (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 22°C while the temperature of the outdoors is -5°C. Take the convection heat transfer coefficients on the inner and outer surfaces of the window to be hy = 10 W/m2-K and h = 25 W/m2.K, respectively, and disregard any heat transfer by radiation. Glass 3 12 3 mm Frame The inner surface temperature of the window is| °C.

Jun 09, 2022
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