1. A shell-and-tube heat exchanger has 40 tubes of I.D. = 1 in and L = 10 ft. Hot stream enters the.

1. A shell-and-tube heat exchanger has 40 tubes of I.D. = 1
in and L = 10 ft. Hot stream enters the shell side and air at 14.7 psia and 200
F at a rate of 1000 lbm/h enters the tubes. Find the total tube-side pressure
drop. The diameter of both inlet and outlet plena is 0.75 ft.

2. Fully developed air flows inside the ΒΌ in tubes of an
air-cooled heat exchanger at a rate of 1.5 lbm/h. The conditions at the inlet
of the tube are atmospheric pressure and 60 F. After being heated in the 2 ft
long tube, air leaves at 780 F. Find the pressure drop in the heat exchanger.