Performance Evaluation Of Water Distribution Network Using Computer Model Simulation

Abstract

The paper describes the water supply system in Doha. It discusses the methodology used in estimating the water demand for each node of the water distribution network in the Garrafa District of Doha. A computer model of the network was built based on the available data and field observations. The applications of the model are to study the effect of water demands at the existing development level on the system pressure and the ability of the system to provide satisfactory pressure after full development. The network model was verified and analyzed for various modes of operation using computer model simulation. The model was calibrated in a stepwise manner. For calibration flow and pressure measurements were made at critical points in the distribution network. These values were compared with the values obtained by analyzing the computer model using WATNET 3 software package developed by Water Research Center, U.K. The analysis indicated deficiencies in some locations in the network but the pressure of the water in the network no where fell below an acceptable minimum distribution pressure of 10m set by the water department.