EFFECT OF TIME ON THE HYDRAULIC PERFORMANCE OF WATER NETWORKS

N. Abdelazim; M. Kamal; Y. Abdelmonem

Abstract

This paper discusses the results of a hydraulic simulation for the effect of time on the hydraulic performance of water networks. The case study area was defined and data about activities, water demand, and land topography was presented. WaterCAD software was used to design the water network using three different pipe materials: Steel, UPVC, and Concrete, based on water demands of the water nework joints in the year 2007. The hydraulic performance was checked in the years 2017, 2030, and 2050, taking into consideration the increase in both water demands and roughness with time. The hydraulic simulation showed negative pressures in some joints in the network, especially in the case of steel pipes. The study proved that action plans with many scenarios through time, in the three cases, should be set involving pipe and/or pump replacement to ensure the sustainability of the service with the required hydraulic performance.