Air Pipe Sizing

on 21 November 2018. Posted in Fluid Dynamics

Air Pipe Sizing Formula
\( d \;=\; 24 \cdot \sqrt{ \dfrac{ Qa }{ 60 \cdot \pi \cdot v_a } } \) (Air Pipe Sizing) \( Q_a \;=\; 60 \cdot \pi \cdot v_a \cdot \left( \dfrac{ d }{ 24 } \right)^2 \) \( v_a \;=\; \dfrac{ Q_a }{ 60 \cdot \pi \cdot \left( \dfrac{ d }{ 24 } \right)^2 } \)
Symbol	English	Metric
\( d \) = pipe inside diameter	\(in\)	\(mm\)
\( Q_a \) = air flow rate	\(ft^3 \;/\; min \)	\(m^3 \;/\; min \)
\( v_a \) = air velocity	\(ft \;/\; sec \)	\(m \;/\; s \)
\( \pi \) = Pi	\(3.141 592 653 ...\)	\(3.141 592 653 ...\)

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