# 10.12 A pump (Peerless 8AE20G, Appendix C) with the 20-in impeller operates at 1775 rpm at maximum...

## Question:

10.12 A pump (Peerless 8AE20G, Appendix C) with the 20-in impeller operates at 1775 rpm at maximum efficiency. It supplies the pipe-line shown in the figure. Determine the pipeline loss coefficient K in the equation hL = KQ2, with Q in gpm. Determine the flow rate between the two reservoirs if two of these pumps operate in parallel, assuming the pipeline K value remains unchanged

10.13 Data from tests of a pump with a 12.3-in.-diameter impeller operated at 1450 rpm are

Develop and plot a curve-fit equation for NPSHR versus volume flow rate in the form NPSHR=a+bQ2, where a and b are constants.

If the NPSHA =20 ft, estimate the maximum allowable flow rate of this pump.

## Step by Step Answer:

**Related Book For**

## Fox And McDonald S Introduction To Fluid Mechanics

**ISBN:** 9781119721024

10th Edition

**Authors:** Robert W. Fox, Alan T. McDonald, John W. Mitchell