Adapted from:

Figure E11.3 in Young, Donald F., Bruce R. Munson, and Theodore H. Okiishi.

A Brief Introduction to Fluid Mechanics. 2nd ed. New York, NY: John Wiley & Sons, Inc., 2001, pp. 461.

00

400 800 1200 1600 2000 2400

20

40

60

80

100

Head

Eff

icie

ncy

Flow rate, gal/min

Hea

d, ft

Eff

icie

ncy

, %

PUMP-PERFORMANCE GRAPH FOR PROBLEM 4

Old

Pip

e

Efficiency

New

Pip

e

O

N

Adapted from:

Figure E11.3 in Young, Donald F., Bruce R. Munson, and Theodore H. Okiishi.

A Brief Introduction to Fluid Mechanics. 2nd ed. New York, NY: John Wiley & Sons, Inc., 2001, pp. 461.

Figure by MIT OCW.