Question: Determine the average heat transfer coefficient for air at 60?C flowing at a velocity of 1 m/s over a bank of 6-cm-OD tubes arranged as

Determine the average heat transfer coefficient for air at 60?C flowing at a velocity of 1 m/s over a bank of 6-cm-OD tubes arranged as shown in the accompanying sketch. The tube-wall temperature is 117?C.GIVENAir flow through the tube bank shownAir temperature (Ta) = 60?CAir velocity (Us) = 1 m/sTube outside diameter (D) = 6 cm = 0.06 mTube wall temperature (Tw) = 117?CASSUMPTIONSSteadystate

7.6 cm 10.2 cm Alr- tu a)

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