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Question: 129 a flat plate has one surface insulated and the...

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1.29 A flat plate has one surface insulated and the other surface exposed to the sun. The exposed surface absorbs the solar radiation at a rate of 800 W/m2 and dissipates it by both convection and radiation into the ambient air at 300 K. If the emissivity of the surface is ε-09 and the convection heat transfer coefficient between the plate and air is 12 W/Km2 C), determine the temperature of the plate. Answer: 342.5 K
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