Holdfast Training Services Trial Blog

I came across a reference to some software called EPANET the other day in a design report. Having done a little digging to find out what it is I thought it may be useful to the other E&M’s (or Civil’s) out there.  It allows the modelling of water distribution piping systems, including junctions, valves, pumps and storage.  As well as doing the standard hydraulic checks based on Hazen-Williams, Darcy Weisbach or Chezy-Manning formula, it can do model time based movement through the system allowing the modelling of  residual chlorine amongst other things.  It sounds impressive and what’s more it was developed by the United States Environmental Protection Authority, so its free.  I haven’t had the chance to experiment with it yet, but it has apparently been used quite a bit on some of the Melbourne Water projects by various members of the KBR team.

http://www.epa.gov/water-research/epanet