A centrifugal blower rotates at 1400 rpm. Air enters the impeller normal to the blades
Chapter 14, Problem 14-139(choose chapter or problem)
A centrifugal blower rotates at 1400 rpm. Air enters the impeller normal to the blades (a1 5 08) and exits at an angle of 258 (a2 5 258). The inlet radius is r1 5 6.5 cm, and the inlet blade width b1 5 8.5 cm. The outlet radius and blade width are r2 5 12 cm and b2 5 4.5 cm, respectively. The volume flow rate is 0.22 m3 /s. What is the net head produced by this blower in meters of air? (a) 12.3 m (b) 3.9 m (c) 8.8 m (d) 5.4 m (e) 16.4 m
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