Chapter 3 Steady Heat Conduction3-18 The two surfaces of a window are maintained at specified temperatures. The rate of heat loss through the window and the inner surface temperature are to be determined. Assumptions1Heat transfer through the window is steady since the surface temperatures remain constant at the specified values. 2 Heat transfer is one-dimensional since any significant temperature gradients will exist in the direction from the indoors to the outdoors. 3 Thermal conductivity is constant. 4 Heat transfer by radiation is negligible. PropertiesThe thermal conductivity of the glass is given to be k= 0.78 W/m⋅°C. AnalysisThe area of the window and the individual resistances are A=×=(.(.12224m)m)m2C/W06155.001667.000321
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This note was uploaded on 01/14/2012 for the course PHY 4803 taught by Professor Dr.danielarenas during the Fall '10 term at UNF.