A flat aluminum plate 8 m long and 1.5 m wide has a surface temperature of 180°C. For its cooling, air at 1 atm and speed of 10 m/s circulates at 20°C parallel to the length of the plate.  a) Determine a steady state of convection heat transfer rate.

Elements Of Electromagnetics
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A flat aluminum plate 8 m long and 1.5 m wide has a surface temperature of 180°C. For its cooling, air at 1 atm and speed of 10 m/s circulates at 20°C parallel to the length of the plate.

 a) Determine a steady state of convection heat transfer rate.

b) The fins are 50 mm long and 0.5 mm thick and the occupancy density is 75 fins per unit length of the plate. The conve coefficient of the air over the plate resulting from the placement of fins is 10 W/m2.K. Determine a calorie transfer rate and percentage increase from part (a).

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