Hot carbon dioxide exhaust gas at 1 atm is being cooled by flat plates. The gas at 220°C flows in parallel over the upper and lower surfaces of a 2.8-m-long flat plate at a velocity of 1.5 m/s and the flat plate surface temperature is maintained at 80°C. The properties of CO2 at Tf = (220°C + 80°C)/2 = 150°C are k = 0.02652 W/m∙K, ν = 1.627 × 10−5 m2/s, and Pr = 0.7445.Determine the total heat flux transfer to the plate.

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