Methodologies for reliability analysis of water distribution systems

This paper presents the background for new methodologies for water distribution system reliability, reliability analysis of pumping systems, and reliability-based optimization models for water distribution systems. The methodology for water distribution system reliability computes model and system reliabilities using Monte Carlo simulation. The methodology for the reliability analysis of pumping systems is based upon a frequency and duration analysis procedure that can consider both mechanical failures and hydraulic failures. An optimization methodology for the reliability-based design water distribution networks is presented that interfaces a nonlinear programming optimizer with a hydraulic simulator and a reliability model.