FIGURE $14-38$

Control volume and absolute velocity

vectors for the centrifugal blower of

Example $14-5.$ The view is along the

blower axis.

EXAMPLE $14-5$ Idealized Blower Performance

A centrifugal blower rotates at $n^{}=1750rpm(183\mathrm{.}3ra\frac{d}{s}).$ Air enters the

impeller normal to the blades $({}_1=0)$ and exits at an angle of $40$ from

radial