A Multi-Period Approach to Background Leakage Estimation in Water Distribution Networks

A Multi-Period Approach to Background Leakage Estimation in Water Distribution Networks
  IJETT-book-cover           
  
© 2023 by IJETT Journal
Volume-71 Issue-9
Year of Publication : 2023
Author : Thabane H. Shabangu, Yskandar Hamam, Jaco A. Jordaan, Kazeem B. Adedeji
DOI : 10.14445/22315381/IJETT-V71I9P231

How to Cite?

Thabane H. Shabangu, Yskandar Hamam, Jaco A. Jordaan, Kazeem B. Adedeji, "A Multi-Period Approach to Background Leakage Estimation in Water Distribution Networks," International Journal of Engineering Trends and Technology, vol. 71, no. 9, pp. 356-366, 2023. Crossref, https://doi.org/10.14445/22315381/IJETT-V71I9P231

Abstract
Localizing background leakage in a large-scale Water Distribution Network (WDN) presents a significant difficulty for water utilities. Leak localization has been the subject of several research projects; a comparison of the available methods reveals that the model-based method is less expensive and uses mathematical models to simulate the operation of the WDN. Due to this, they are better able to adjust to changes in the complexity of WDNs. The majority of model-based methods that have been suggested in the literature are only appropriate for burst-type leaks. However, for undetected background leakage, applying an appropriate hydraulic model permits the estimation of such leaks. Unfortunately, earlier studies in this direction did not consider the daily variations in water consumption, making it impossible to examine background leakage effectively. Specifically, under this, leak localization and analysis were considered for a single-period scenario. However, single-period monitoring of leak flow may occasionally result in incorrect results due to variations in water pressure between peak and off-peak hours. The multi-period analysis will, therefore, provide a more precise examination of the background leak estimate. In light of this, an improved leak localization method to address this shortcoming is proposed. The study will focus on the detection and localization of background leakage in WDNs, considering multi-period analysis. The multi-period analysis examines water consumption from 0 to 24 hours. This allows the analysis of water losses during both peak and off-peak water demand periods. The analysis is conducted on some water distribution networks adapted from real-life networks. The model is simulated, and leak flow and pressure head are observed within 24 hours of simulation. The variations in leak flow and pressure during this period are investigated.

Keywords
Leak flow, Multi-period, Pressure-head, Water Distribution Network, Water loss.

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