Calculating Pipe Dia At Max Velocities

[Woka]

Hi, what formula can I use to calculate the required minimum diameter of a pipe where the flow rate is known, and where the velocity is specified as being a maximum of 1.5metres per second?? Fluid is clean fresh water.

 

[quark]

Woka!

The formula is Q = (3.142/4)D^2*V

Where Q is the required flow rate in cu.m/sec, D is pipe inner diameter in meters and V is the velocity of fluid in meters/second. Readjust the equation and you will get the size of the pipe. (There obviously is a minimum diameter than this value) You have to fix the velocity based on the losses in the piping system.

Regards,

Truth: Even the hardest of the problems will have atleast one simple solution. Mine may not be one.

 

[gjb1]

Woka,

d (mm) =18.8 x (SQroot [Q (m3/hr)/V(m/s])

d= pipe diameter
Q= flowrate
v= velocity

GB