A leaf blower is essentially a centrifugal impeller exiting to a tube. Suppose that the tube is

Question:

A leaf blower is essentially a centrifugal impeller exiting to a tube. Suppose that the tube is smooth PVC pipe, 4 ft long, with a diameter of 2.5 in. The desired exit velocity is 73 mi/h in sea-level standard air. If we use the pump family of Eq. (11.27) to drive the blower, what approximate
(a) Diameter and
(b) Rotation speed are appropriate?
(c) Is this a good design?