Identifying the Location and Amount of Two Simultaneous Leaks in Water Supply Networks by a Two-step Algorithm

Document Type : Research Article


1 M. Sc. Student, Faculty of Civil, Water,Environmental Engineering, Shahid Beheshti University

2 Assistant Professor, Faculty of Civil, Water, and Environmental Engineering, Shahid Beheshti University


Leakage in the water distribution systems is a crucial issue because of some problems such as water loss, water pollution, and land subsidence. The current leakage detection methods are usually costly and time-consuming; therefore, some new methods have been developed based on the water networks simulation. In this paper, a new method for identifying the location and amount of leakage in water distribution systems based on a two-step algorithm is introduced. The first (Stepped Algorithm) and second (Firefly Algorithm) steps to determine the leak location and amount of leakage are respectively used which is applicable for up to two simultaneous leaks. The proposed method is based on the comparison of the network hydraulic simulation results and some field network data (pressure or flow or their combination). “Also, this method has no sensitivity on the location of leaks and can identify low amounts of leakage ( below 0.3% of the network inflow”) The obtained results for six examples in a looped-water network are presented. The results show that the proposed algorithm can locate both one leak and two simultaneous leaks and their leakage values with less than 8% error. The proposed developed method can be utilized by operators of water supply networks for finding unreported leakage..


Main Subjects

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