5. Consider a 1.2-m-high and 2-m-wide double-pane window consisting of two 3-mm-thick layers of glass (k...
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5. 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 outer surface for a day during which the room is maintained at 24°C while the temperature of the outdoors is -10°C. Take the convection heat transfer coefficients on the inner and outer surfaces of the window to be hi = 10 W/m2-K and hz = 25 W/m2- K, and disregard any heat transfer by radiation. Glass 3 mm Frame Figure Question 5 5. 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 outer surface for a day during which the room is maintained at 24°C while the temperature of the outdoors is -10°C. Take the convection heat transfer coefficients on the inner and outer surfaces of the window to be hi = 10 W/m2-K and hz = 25 W/m2- K, and disregard any heat transfer by radiation. Glass 3 mm Frame Figure Question 5
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Given data Area of the window Glass layer thickness Air gap thickness The thermal conductivity of ... View the full answer
Related Book For
Fundamentals of Thermal-Fluid Sciences
ISBN: 978-0078027680
5th edition
Authors: Yunus A. Cengel, Robert H. Turner, John M. Cimbala
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