An axial flow fan operates in sea level air at 1200 r min and has a blade tip diameter of 1 m and a root diameter of 80 cm The inlet angles are 1 55 and 1 30, while at the outlet 2 60 Estimate the theoretical values of the (a) Flow rate, (b) Horse power, and (c) Outlet angle 2

Question: An axial-flow fan operates in sea level air at 1200 r/min and has a blade-tip diameter of 1 m and a root diameter of 80

An axial-flow fan operates in sea level air at 1200 r/min and has a blade-tip diameter of 1 m and a root diameter of 80 cm. The inlet angles are α1 = 55° and β1 = 30°, while at the outlet β2 = 60°. Estimate the theoretical values of the
(a) Flow rate,
(b) Horse-power, and
(c) Outlet angle α2.

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