Air Pipe Sizing

Written by Jerry Ratzlaff on . Posted in Fluid Dynamics

Air Pipe Sizing formula

\(\large{ d = 12 \; \sqrt {   \frac { 4 } { \pi }   \;  \frac { Q_a  } {60 \; v_a}      }  }\)   

Where:

 Units English Metric
\(\large{ d }\) = pipe inside diameter \(\large{in}\) \(\large{mm}\)
\(\large{ Q_a }\) = air flow rate \(\large{\frac{ft^3}{min} }\) \(\large{\frac{m^3}{min} }\)
\(\large{ v_a }\) = air velocity \(\large{\frac{ft}{sec} }\) \(\large{\frac{m}{s} }\)
\(\large{ \pi }\) = Pi \(\large{3.141 592 653 ...}\)


P D Logo 1

Tags: Pipe Sizing Equations Air Equations