Water is being transferred from a large tank on the ground floor to the second floor of an industrial processing facility as shown in Figure P4.56. A Bell & Gossett Series e-1531 Model 3BD pump operating at 1770 rpm with an 8-inch impeller has been selected for the system. The pipe is 3½ nom sch 40 commercial steel. The total length of straight pipe in the system is 100 ft. The length of the suction line is 60 ft.
Several elevations are indicated in Figure P4.56. Atmospheric pressure is 14.3 psia.

a. Determine the pump/pipe system operating point (head, capacity, pump power draw, and pump efficiency)

b. Due to maintenance and access issues, the proposed location for the pump is on the second floor of the building as shown in Figure P4.56. Should the pump be installed at this location?

Transcribed Image Text:

2=23 ft Z = 8 ft # All pipe is 3% nom sch 40 commercial steel Total length of straight pipe = 100 ft Total length of straight suction pipe = 60 ft All fittings and valve are standard FIGURE P4.56 A pump/pipe system used to transport water to the second floor of an industrial facility. Zp=16 ft -0 =0 ft