15819.Consider a 2-m-high and 2-m-wide double-158pane window consisting of two 4-mm-thicklayers of glass (k= 1.0 W/m-°C) separated by a10-mm-wide stagnant air space (k=0.025W/m°C). During the daytime, the room ismaintained at 25°C while the temperature of theoutdoors is (-5°C). Take the convection heattransfer coefficients on the inner and outersurfaces of the window to be h = 10W/m² - °Candh2 = 25W/m² . °C and disregard any heat transfer%3D%3Dby radiation.安苏白919158Glass安艺919158410 4mm 安苏919158Glass410 4mm安苏919158Frame(a) Draw the thermal resistance network.91915850E10through this double-pane window.91915850E106(b) Determine the steady rate of heat transfer(c) the temperature of itsin苏白9191surface.and outer

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19.Consider a 2-m-high and 2-m-wide double- pane window consisting of two 4-mm-thick layers of glass (k= 1.0 W/m-°C) separated by a 10-mm-wide stagnant air space (k=0.025 W/m°C). During the daytime, the room is maintained at 25°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 10W/m² . °Cand be h h2 = 25W/m² - °C and disregard any heat transfer %3D by radiation. 安艺。 919158 Glass 919158 4 10 4mm

19.Consider a 2-m-high and 2-m-wide double- pane window consisting of two 4-mm-thick layers of glass (k= 1.0 W/m-°C) separated by a 10-mm-wide stagnant air space (k=0.025 W/m°C). During the daytime, the room is maintained at 25°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 10W/m² . °Cand be h h2 = 25W/m² - °C and disregard any heat transfer %3D by radiation. 安艺。 919158 Glass 919158 4 10 4mm

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter6: Forced Convection Over Exterior Surfaces

Section: Chapter Questions

Problem 6.4P: An electrical transmission line of 1.2-cm diameter carries a current of 200 amps and has a...

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