Material Handling Equipment

An air duct of circular cross section with diameter $D = 0.40\text{ m}$ carries air at a uniform velocity $V = 10.0\text{ m/s}$. The volumetric air flow rate $Q$ in m$^3$/s is: (Area $= \frac{\pi}{4} D^2 = \frac{\pi}{4}(0.16) = 0.04\pi \approx 0.1257\text{ m}^2$)