If in Problem 1.11 the outer air temperature is ??2?C, calculate the convective heat transfer coefficient between the outer surface
If in Problem 1.11 the outer air temperature is ??2?C, calculate the convective heat transfer coefficient between the outer surface of the window and the air assuming radiation is negligible. Problem 1.11: Calculate the heat loss through a 1 m by 3 m glass window 7 mm thick if the inner surface temperature is 20?C and the outer surface temperature is 17?C. Comment on the possible effect of radiation on your answer.GIVENWindow: 1 m by 3 mThickness (L) = 7 mm = 0.007 mSurface temperaturesInner (Ti) = 20?C and outer (To) = 17?CThe rate of heat loss = 1040W (from the solution to Problem 1.11)The outside air temperature = ??2?CASSUMPTIONSThe system is in steady state and radiative loss through the window isnegligible
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