Question: Liquid mercury is flowing at 0.6 kg/s through a 5-cmdiameter tube with inlet and outlet mean temperatures of 100°C and 200°C, respectively. The tube surface temperature is maintained constant at 250°C. Determine the tube length using
(a) the appropriate Nussclt number relation for liquid metals and
(b) the Dittus-Boelter equation.
(c) Compare the results of (a) and (b).