Document Type : Case Study
Authors
1 کارشناس بهره برداری و توسعه شبکه توزیع آب
2 Master of Mechanical Engineering / Director of the Office of Operation and Development of Water Distribution Network and Reduction of Non-Revenue Water / Lorestan Water and Wastewater Company
Abstract
In order to deal with the challenges caused by the limitations of water resources in the path of social and economic development, various models of pressure management methods have been proposed and developed all over the world. One of the pressure and leakage management methods in water distribution networks is the use of pressure relief valves and the creation of pressure zones, for the effective operation of these valves, it is very important to determine the appropriate position and their regulatory pressure. In the present study, the effect of pressure zoning method on pressure management and network leakage reduction has been studied using a hydraulic model. For this purpose, with the help of WaterGEMS software, the hydraulic model of the water distribution network of Durood city was built and the model was calibrated using the information of flow measurement and pressure measurement, then the hydraulic analysis of the model was performed. Based on the obtained results, the distribution network of this city was divided into 4 zones, and in addition to the existing reducing valves, 5 new reducing valves were proposed for pressure regulation. The results showed that by using of zoning, the network pressure and average leakage reduction level were %17 and % 17 respectively. According to the results of the presented method, it has a proper efficiency on managing the pressure and leakage of the water distribution network.
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