The rear window of an automobile is defogged by passing warm air over its inner surface. If the warm air is at T; 40°C and the corresponding convection coefficient is h; = 30 W/m2.K, what are the inner and outer surface temperatures, in °C, of 4-mm-thick window glass, if the outside ambient air temperature is T = -20°C and the 0,0 associated convection coefficient is ho = 65 W/m2-K? Evaluate the properties of the glass at 300 K. Tsi i °C Ts,0 i °C

Elements Of Electromagnetics
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The rear window of an automobile is defogged by passing warm air over its inner surface. If the warm air is at T
40°C and the corresponding convection coefficient is h;
temperatures, in °C, of 4-mm-thick window glass, if the outside ambient air temperature is T
30 W/m2.K, what are the inner and outer surface
= -20°C and the
0,0
associated convection coefficient is ho
65 W/m2.K? Evaluate the properties of the glass at 300 K.
Tsi
i
°C
Ts,0
i
°C
Transcribed Image Text:The rear window of an automobile is defogged by passing warm air over its inner surface. If the warm air is at T 40°C and the corresponding convection coefficient is h; temperatures, in °C, of 4-mm-thick window glass, if the outside ambient air temperature is T 30 W/m2.K, what are the inner and outer surface = -20°C and the 0,0 associated convection coefficient is ho 65 W/m2.K? Evaluate the properties of the glass at 300 K. Tsi i °C Ts,0 i °C
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