Pressure-dependent Demand and Leakage Modelling with an EPANET Extension – WaterNetGen

This paper presents the approach followed by WaterNetGen – an EPANET extension – to simulate water distribution systems considering both normal pressure and pressure-deficient scenarios. WaterNetGen models pressure-deficient scenarios by incorporating a pressure-demand relationship, which computes the available demand as a function of the current pressure, and considering leakage at pipe level (background and bursts). This new capability is fully integrated into the original EPANET interface, so the same network model can be used to perform demand-driven and pressure-driven analysis, leading to a faster a more accurate modelling of water distribution systems.