Question

Tube bank uses an aligned arrangement of 10-mmdiameter tubes with ST-Si-20 mm. There are 10 rows of tubes with 50 tubes in each row. Consider an application for which cold water flows through the tubes, maintaining the outer surface temperature at 27°C, while flue gases at 427°C and a velocity of 5 m/s are in cross flow over the tubes. The properties of the flue gas may be approximated as those of atmospheric air at 427°C. Using Zukauskas correlation determine the total rate of heat transfer per unit length of the tubes in the bank. Perform two iterations in your trial-error process. SCHEMATIC: Tube, D-10mm T-300K N,-10 rows ,NT-50 tubes|roN lue gas V-5m/s Too-700K-T p-1atm

Answer 1

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