Towards Achieving a Reliable Leakage Detection and Localization Algorithm for Application in Water Piping Networks: An Overview

Adedeji, Kazeem B.; Hamam, Yskandar; Abe, Bolanle Tolulope; Abu‐Mahfouz, Adnan M.

doi:10.1109/access.2017.2752802

Cited by 158 publications

(112 citation statements)

References 93 publications

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“…Attempts to resolve water loss problems using wellknown techniques have not had the envisaged impact [3,4] and it is for this reason the CSIR has embarked on an initiative to develop a novel real-time dynamic hydraulic model (DHM) [1] that can be used to address water leakages and incidents.…”

Section: Introductionmentioning

confidence: 99%

Real-time Dynamic Hydraulic Model for Water Distribution Networks: Steady State Modelling

Osman¹,

Yoyo²,

Page³

et al. 2016

Environment and Water Resource Management / 837: Health Informatics / 838: Modelling and Simulation / 839: Power and Energy Sys

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It is known that South Africa is a water scarce country which has been recently been experiencing erratic weather conditions resulting in a constrained water supply. Renewed focus has been placed on water conservation. This study seeks to develop a steady state hydraulic model that will be used within a real-time dynamic hydraulic model (DHM). The Council for Scientific and Industrial Research (CSIR) water distribution network (WDN) is used as a pilot study for this purpose. A hydraulic analysis was performed for the WDN. Model parameter data were obtained through as-built drawings and site visits. The data were verified, and critical unknown parameters (those whose absence results in model uncertainty) were measured and thereafter imported into a developed computer model in the EPANET program. The model is presented in this paper. The pilot WDN was analysed for a 24 hour period. Network results have revealed that the system is functional and that water is transported in the system at a very high rate and boosted by a high pressure at the abstraction point. Flow velocities are within the range of 0.6 m/s to 2 m/s as recommended by the CSIR internal guidelines, and therefore no stagnation is expected. The steady state hydraulic model will form part of the real-time DHM and the time and cost efficiency of the entire DHM process will be accessed. This assessment will be in view of a desire to replicate a similar procedure to numerous areas in municipalities across South Africa.

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Section: Introductionmentioning

confidence: 99%

Real-time Dynamic Hydraulic Model for Water Distribution Networks: Steady State Modelling

Osman¹,

Yoyo²,

Page³

et al. 2016

Environment and Water Resource Management / 837: Health Informatics / 838: Modelling and Simulation / 839: Power and Energy Sys

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“…Apart from the acoustic techniques, other non-acoustic techniques of leak detection techniques for WDNs involve the analysis of quasi-steady-state signals and transient signals (pressure waves) detected by sensors in the pipe network [24]. The use of frequency response functions, cross-correlation analysis, impulse response functions, discrete wavelet transforms techniques, and transient damping techniques were also investigated in the literature to detect leaks in water pipe networks.…”

Section: Leak Assessment and Controlmentioning

confidence: 99%

“…Detailed models are required to solve some management problems associated with the networks. These include leakage detection and control [24], water quality analysis, network enhancement, or upgrade. It should be pointed out here that it is difficult to calibrate a detailed model because all the current state measurements of the network may not be available at the time of calibration [98].…”

Section: Detailed and Reduced Hydraulic Modelsmentioning

confidence: 99%

Solving Management Problems in Water Distribution Networks: A Survey of Approaches and Mathematical Models

Bello

Abu‐Mahfouz

Hamam

et al. 2019

Water

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Modern water distribution networks (WDNs) are complex and difficult to manage due to increased level of urbanization, varying consumer demands, ageing infrastructure, operational costs, and inadequate water resources. The management problems in such complex networks may be classified into short-term, medium-term, and long-term, depending on the duration at which the problems are solved or considered. To address the management problems associated with WDNs, mathematical models facilitate analysis and improvement of the performance of water infrastructure at minimum operational cost, and have been used by researchers, water utility managers, and operators. This paper presents a detailed review of the management problems and essential mathematical models that are used to address these problems at various phases of WDNs. In addition, it also discusses the main approaches to address these management problems to meet customer demands at the required pressure in terms of adequate water quantity and quality. Key challenges that are associated with the management of WDNs are discussed. Also, new directions for future research studies are suggested to enable water utility managers and researchers to improve the performance of water distribution networks.

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“…The researchers utilize Head Loss Ratio (HLR) algorithm to detect the leak. The pressure readings to describe the leak detection method from three sensors labelled as pi, pj and pk are shown in Equation 1. ( , , , ) = ( )− ( ) ( )− ( ) (1) The first pressure signal is the inlet network pressure and the last pressure signal is the outlet of the network. The pressure in any point along the pipeline represented the middle value.…”

Section: External Systems 211 Sensor Basedmentioning

confidence: 99%

“…Water pipeline leakages are one of a few challenges to the water utility companies all over the world in providing the service. Several factors have been identified contributed to the water pipeline leakages such as ageing infrastructure, severe environmental conditions and third-party damages [1]. A recent report published by World Bank in 2016 indicates there is 45 billion cubic meters of water loss in that year.…”

mentioning

confidence: 99%

Localization Techniques for Water Pipeline Leakages: A Review

Lah

Dziyauddin

Yusoff

2018

IJIE

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IntroductionAn efficient water distribution system relies on a good water pipeline system. Water pipeline leakages are one of a few challenges to the water utility companies all over the world in providing the service. Several factors have been identified contributed to the water pipeline leakages such as ageing infrastructure, severe environmental conditions and third-party damages [1]. A recent report published by World Bank in 2016 indicates there is 45 billion cubic meters of water loss in that year. From a financial point of view this huge amount of losses is equivalent to a value of USD 3 billion whilst from a social point of view it can supply water to 90 million people in a year [2]. During pipeline leakage, a portion of the water delivered within the water distribution network wasted and this affects the Non-Revenue Water (NRW) efficiency to the water utility company. NRW is the lowest hanging fruits to improve water utility efficiency [3]. Minimizing the NRW is one of the challenges encountered by the water utility company because the uncontrolled NRW can cause vicious cycle [4]. Researchers in [5] studied the detail of pipeline leakages and emphasized that there are two main factors that affecting to the NRW efficiency; apparent losses and real losses. The apparent losses were due to meter defect, illegal tapping, water storage tank maintenance, fire brigade use and others. The real losses were due to a pipe burst, pipe leakages and water overflow due to faulty valves. A statistic from [4] in 2008 exhibits that real losses accounted for 61.5% of total water loss recorded. Hence there is an urgency to detect the pipeline leakage and localize it in the shortest time with leak location accuracy is the main benchmark.Pipeline leakage incidents sometimes go unnoticed until the symptoms are visible such as low water pressure or water supply interruptions. This happens when the water pipeline is located underground or far away from the community area. Even though the leakages is visible and noticed, it still takes time to the relevant authorities to locate the leak location. This issue has gained an interest in a lot of researchers and in the past few decades, numerous studies and research have been conducted to solve or at least minimize this issue. The research area in the field of localization can be partitioned into two categories; the external and internal system. The external system refers to the hardware-based such Abstract: Pipeline leakages in water distribution network (WDN) is one of the prominent issues that has gain an interest among researchers in the past few years. Time and accuracy play an important role in leak localization as it has huge impact to the human population and economic point of view. The complexity of WDN has prompt numerous techniques and methods been introduced focusing on the accuracy and efficacy. In general, localization techniques can be divided into two broad categories; external and internal systems. This paper reviews some of the techniques that has been explored and pr...

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Towards Achieving a Reliable Leakage Detection and Localization Algorithm for Application in Water Piping Networks: An Overview

Cited by 158 publications

References 93 publications

Real-time Dynamic Hydraulic Model for Water Distribution Networks: Steady State Modelling

Real-time Dynamic Hydraulic Model for Water Distribution Networks: Steady State Modelling

Solving Management Problems in Water Distribution Networks: A Survey of Approaches and Mathematical Models

Localization Techniques for Water Pipeline Leakages: A Review

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