A shell-and-tube heat exchanger has 20-tubes and each undergo 2-passes through the shell, and there is 1-shell-pass for the fluid on the shell side. Each tube pass is 4-m-long. The tube has 15-mm-inner and 18-mm-outer-diameter. Hot water at 0.40 kg/s flows in tube entering at 77°C and exiting at 37°C. Cool oil flows in the shell entering at 7°C and exiting at 37°C. Calculate the convection coefficient for the tube outer surface.
28 мар 2016
