A flat plate of width 1 m is maintained at a uniform

Chapter 7, Problem 7.8

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A flat plate of width 1 m is maintained at a uniform sur-face temperature of Ts?150?C by using independentlycontrolled, heat-generating rectangular modules ofthickness a?10 mm and length b?50 mm. Eachmodule is insulated from its neighbors, as well as on itsback side. Atmospheric air at 25?C flows over the plateat a velocity of 30 m/s. The thermophysical propertiesof the module are k?5.2 W/m?K, cp?320 J/kg?K,and ??2300 kg/m3.(a) Find the required power generation, (W/m3), in amodule positioned at a distance 700 mm from theleading edge (b) Find the maximum temperature Tmaxin the heat-generating module.

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