Air Velocity through Piping

Air Velocity through Piping formula

\(\large{ v_a = \frac { Q_a }{ 60 \; \pi \;  { \left( \frac {d}{24} \right) ^2  }   }   }\)

Where:

\(\large{ v_a }\) =  air velocity

\(\large{ Q_a }\) = air flow rate

\(\large{ \pi }\) = Pi

\(\large{ d }\) = pipe inside diameter