Suction Head Coefficient

Written by Jerry Ratzlaff on . Posted in Pump

Suction head coefficient, abbreviated as \(C_{NPSH}\), a dimensionless number, is the angular velocity of the turbomachine shaft and the turbomachine impeller diameter.

 

Suction Head Coefficient Formula

\(\large{ S = \frac{ g \; NPSH }{ \left( \frac{ 2 \; \pi }{ t } \right)^2  \; d^2 }  }\)   

Where:

\(\large{ C_{NPSH} }\) = suction head coefficient

\(\large{ NPSH } \) = net positive suction head

\(\large{ t } \) = period

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

\(\large{ g } \) = standard gravity

\(\large{ d } \) = turbomachine impeller diameter

 

Tags: Equations for Velocity Equations for Pumps