For the system described in Problem 9.26, compute the pressure drop for both fluids betwee...

For the system described in Problem 9.26, compute the pressure drop for both fluids between two points 3.80 m apart if the duct is horizontal. Use the roughness for steel pipe for all surfaces.

Problem 9.26

Refer to Fig. 9.14, which shows two DN 150 Schedule 40 pipes inside a rectangular duct. Each pipe carries 450 L/min of water at 20°C. Compute the Reynolds number for the flow of water. Then, for benzene (sg = 0.862) at 70°C flowing inside the duct, compute the volume flow rate required to produce the same Reynolds number.

FIGURE 9.14 Problems