Optimal Pressure Control for Leakage Minimization in Water Distribution Networks

فصلنامه آب و توسعه پایدار

Article 7, Volume 4, Issue 2 - Serial Number 9, March 2018, Pages 49-56   

Document Type: review paper

DOI: 10.22067/jwsd.v4i2.61886

Authors

Jafar Jafari-Asl^{* 1}; bahram sami kashkooli²; mehdi bahrami³

¹yasouj university

²Tarbiat Modares University

³fasa university

Abstract

Water leakage in the water distribution networks results in losses of supply, pressure, and capital investment. Therefore, efforts to reduce the leakage in the water distribution networks have great importance. A common way to reduce pressure is the installation of flow or pressure reducing valves (PRV) and the optimal regulation of these valves in water networks. This study aims at investigating the optimum management of pressure in order to minimize the leakage in water distribution networks. For this purpose, the optimal placement and setting for pressure relief valves, with minimum allowable pressure in the nodes, is considered as the main constraint of the problem. In the present research, to solve these problems, an optimization model—a simulation based on an emerging algorithm called Cultural Algorithm (CA)—was used. In this model, the CA optimization in MATLAB environment was integrated with the hydraulic simulation of the EPANET model. The results revealed that, considering all the limitations of the problem, employing this method to determine the position of the pressure reducing valves and regulating them lowered the mean leakage rate of the network by 10% in three periods of maximum, average, and minimum water demand.

Keywords

Leakage management; Pressure management; Pressure reducing valves; Cultural algorithm; EPANET

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