ERI-SIM simulates the processes in a seawater reverse osmosis (SWRO) plant. It models the pressures, flows, and salinities of a seawater RO process equipped with Energy Recovery’s PX energy recovery devices. ERI-SIM integrates PX device performance, typical pump and valve characteristics, and projected membrane responses into an interactive, dynamic training model. Note that ERI-SIM is for training purposes only and is not a design tool.