ABSTRACT

ABSTRACT: One of the most important problems in water distribution systems is analysis of unaccounted for water (UFW). This analysis is performed with some different purposes, for instance, leakage control, assessment of network conditions and leakage estimation. To analyze the water losses, real hydraulic conditions and pressure values are required. These data are produced by a hydraulic model (EPANET) in this research. Then with a proper leakage-pressure relationship, values of leakage are computed. Leakage-pressure relationship parameters are obtained from a GIS model.