One of our techs asked me today if it's possible to calculate the waterflow (15°C entering) through a plastic pipe of 8 mm OD - 6 mm ID (or +/- 1/4 inch ID)with a DP of 3 bar over it and a lenght of 1 m and 5 m.

A practical test could of course tell it straight away but how can it be calculated?

Peter

I haven't post in under industrial cooling