Data measured during tests of a centrifugal pump driven at \(3000 \mathrm{rpm}\) are

The flow rate is \(65 \mathrm{gpm}\) and the torque applied to the pump shaft is \(4.75 \mathrm{lbf} \cdot \mathrm{ft}\). The pump efficiency is 75 percent, and the electric motor efficiency is 85 percent. Find

(a) the electric power required 

(b) the gage pressure at section (2).

Transcribed Image Text:

Parameter Gage pressure, p (psi) Elevation above datum, z (ft) Average speed of flow, V (ft/s) Inlet, Section Outlet, Section 2 12.5 6.5 32.5 6.5 15