Integrated Use Of Space Geophysical And Hyperspectral Technologies Intended For Monitoring Water Leakages In Water Supply Networks
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Integrated Use Of Space Geophysical And Hyperspectral Technologies Intended For Monitoring Water Leakages In Water Supply Networks
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Author : Diofantos Hadjimitsis
language : en
Publisher: BoD – Books on Demand
Release Date : 2014-11-05
Integrated Use Of Space Geophysical And Hyperspectral Technologies Intended For Monitoring Water Leakages In Water Supply Networks written by Diofantos Hadjimitsis and has been published by BoD – Books on Demand this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-11-05 with Technology & Engineering categories.
Remote sensing has been used for water management purposes over the years. This book describes the combination of satellite imagery, in-situ spectroradiometric data and radar techniques for the identification of water leakages in the water supply network in both rural and urban areas in Cyprus. This book presents a holistic approach combining new technologies for a complete system of water distribution network leakage detection management, by combining Global Navigation Satellite Systems (GNSS), Geographical Information Systems (GIS), Satellite Remote Sensing techniques as well Geophysical surveys such as ground penetrating radar (GPR), Unmanned Aerial Vehicles (UAV) and spectro-radiometric measurements, which can be used to effectively identify and monitor water leakages.
Use Of The Artificial Intelligence Methods For The Detection And Localization Of Leaks In The Water Distribution Networks
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Author : Neda Mashhadi
language : en
Publisher:
Release Date : 2020
Use Of The Artificial Intelligence Methods For The Detection And Localization Of Leaks In The Water Distribution Networks written by Neda Mashhadi and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020 with categories.
This manuscript presents the results of research about the use of the Artificial Intelligence moths to detect and localize leaks in the water distribution networks. The manuscript is organized in three chapters:The first chapter includes a literature review about the leak in the water distribution networks. First, it presents first the origin of the water leak and its dramatic economic, social and environmental impact. Then, it presents the conventional methods used for the detection of the water leak including hardware-based and software-based methods. This chapter highlights the opportunities offered by the smart monitoring and the Artificial Intelligence methods for the detection of leaks in the water networks. It also shows a need to explore on the same example the capacity of the main AI methods to detect and localize leaks in complex water networks.The second chapter presents the water network of the scientific campus of Lille University, which is used as a support for this research. It argues the selection of this campus by its representativity of a small town, the complexity of the water network and the availability of data about the water network asset and consumption. The chapter also presents the construction of a Lab pilot to investigate of the possibility to localize water leaks from the ratios of the water supply flow rates.The third chapter presents a synthesis of the use of Machine Learning methods in leak localization. It also presents the use of the software EPANET for the generation of data including the impact of 215 individual and double leaks on the variation of the water supply flow rates and the pressure in five zones of the campus. These data are then used to investigate the capacity of five Machine Learning methods to localize leaks in the water distribution system. The chapter suggests some recommendations for the use of ML methods in water leak localization.
Integrated Multiple Sensor Methodology For Condition Assessment Of Water Mains
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Author : Mohamed Fahmy
language : en
Publisher:
Release Date : 2009
Integrated Multiple Sensor Methodology For Condition Assessment Of Water Mains written by Mohamed Fahmy and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009 with categories.
Considerable capital investment has been made in civil infrastructure systems across the globe including water mains. Currently, existing failure detection and location methods do not allow for quick reaction to failures. In addition, no unified standards are followed in condition assessment of water mains. Moreover, the decision by which water mains are inspected is currently carried out based on approximation and experience of decision-makers, which might be limited and may lead to overlooking suitable evaluation methods that might save time, effort and cost. This research presents a methodology that contributes to different phases in the asset management of water mains. It enhances current practice in condition assessment of water mains and assists in setting up rehabilitation priorities. The methodology implemented is based on intensive literature review, evaluation of current methods, field investigation and experiments, and interviews with experts. The methodology considered augments two approaches currently used in condition assessment of water mains, which are proactive and reactive methods. The developed methodology calls for designing a new decision support system (DSS) for selection of most suitable non-destructive evaluation (NDE) method(s). It consists of two components: 1) A Database management system (DBMS), and 2) an evaluation and ranking module (ERM). These NDE methods are used for either detecting suspected leaks or measuring pipe wall thickness, the latter is employed to predict remaining service life of pipe being considered. In case of suspected leaks, this study presents a newly designed automated system for detection of water leaks in underground pipelines and identifying their respective locations. The development of this system is based on using Thermography infrared (IR) camera in order to detect thermal contrast at the pavement surface due to water leaks at the most suitable time. The data obtained is analyzed in order to establish the relationship between the detected leakage area and the approximate location of leak. Prototype software developed in Visual C# environment is implemented in order to determine the location of leaks automatically. Two deterioration models were designed and developed for estimating remaining useful life of water mains, and predicting annual breakage rate of water mains. The development of the two models is based on the analysis of real data collected from 16 municipalities in Canada and the US. The two models were developed considering two approaches, multiple regression analysis and Artificial Neural Networks (ANNs) based on the most suitable subsets of selected factors. The final model was selected due to its reliability and better performance in comparison to other models. The outputs of the deterioration models developed in this research were used, in addition to other deterioration factors that were not considered in existing models in order to develop a Decision Support System (DSS) for generating condition rating scale of water main being considered, and for prioritizing rehabilitation/ maintenance actions. The system is hierarchal in structure, and the condition-rating index is generated using Multi Attributes Utility Theory (MAUT). System validation was carried out by comparing its outcome with real case studies. A prototype software application of the model presented in this research is implemented as a proof of concept to demonstrate the capabilities and essential features of the developed models.
Water Leak Detection And Localization Using Multi Sensor Data Fusion
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Author : Fei Yang
language : en
Publisher:
Release Date : 2012
Water Leak Detection And Localization Using Multi Sensor Data Fusion written by Fei Yang and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with Leak detectors categories.
Modern cities can no longer tolerate insufficiencies in water supply systems. Of the many options available for conserving water, detecting a leakage from a sealed pipe is an effective low cost method. The quality of the leak detection system is determined by accuracy. The aims of this study were developing a system to minimize the probability of false alarm and misdetection, and to detect the leak in time by using a multi-sensor network. Cross correlation and the Artificial Neural Network (ANN) algorithm were utilized to pinpoint the leak location. The results showed that the probabilities of false alarm and miss detection have been decreased. In addition, an analysis of the results in leak localization implies that the error of estimated location and physical location decreases if more data is fed to the ANN algorithm and it finally stabilizes within ±27.22 mm. The results of this study are presented such that they can be used as an aid to a water pipeline monitoring system.
Assessment Of The Use Of Space Technology In The Monitoring Of Oil Spills And Ocean Pollution Executive Summary
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Author : U. R. Alvarado
language : en
Publisher:
Release Date : 1980
Assessment Of The Use Of Space Technology In The Monitoring Of Oil Spills And Ocean Pollution Executive Summary written by U. R. Alvarado and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1980 with Oil spills categories.
Advanced Water Recovery Technologies For Long Duration Space Exploration Missions
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Author : National Aeronautics and Space Administration (NASA)
language : en
Publisher: Createspace Independent Publishing Platform
Release Date : 2018-06-24
Advanced Water Recovery Technologies For Long Duration Space Exploration Missions written by National Aeronautics and Space Administration (NASA) and has been published by Createspace Independent Publishing Platform this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-06-24 with categories.
Extended-duration space travel and habitation require recovering water from wastewater generated in spacecrafts and extraterrestrial outposts since the largest consumable for human life support is water. Many wastewater treatment technologies used for terrestrial applications are adoptable to extraterrestrial situations but challenges remain as constraints of space flights and habitation impose severe limitations of these technologies. Membrane-based technologies, particularly membrane filtration, have been widely studied by NASA and NASA-funded research groups for possible applications in space wastewater treatment. The advantages of membrane filtration are apparent: it is energy-efficient and compact, needs little consumable other than replacement membranes and cleaning agents, and doesn't involve multiphase flow, which is big plus for operations under microgravity environment. However, membrane lifespan and performance are affected by the phenomena of concentration polarization and membrane fouling. This article attempts to survey current status of membrane technologies related to wastewater treatment and desalination in the context of space exploration and quantify them in terms of readiness level for space exploration. This paper also makes specific recommendations and predictions on how scientist and engineers involving designing, testing, and developing space-certified membrane-based advanced water recovery technologies can improve the likelihood of successful development of an effective regenerative human life support system for long-duration space missions. Liu, Scan X. Johnson Space Center
Advanced Technique For Leak Detection And Location In Water Networks
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Author : Aburawe Salah M
language : en
Publisher: LAP Lambert Academic Publishing
Release Date : 2015-11-30
Advanced Technique For Leak Detection And Location In Water Networks written by Aburawe Salah M and has been published by LAP Lambert Academic Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-11-30 with categories.
Most water utilities worldwide suffer from the problem of water loss which effects the financial, social and environmental concerns. Leakage in water distribution networks is a significant issue that costs a lot, which is further complicated by the problem that the location of the leakage is usually hidden underground. In this book The author presents an advanced analytical technique for real-time leakage detection and location in water distribution networks with acceptable accuracy and reasonable cost.
Detection Of Water Leakage Using Innovative Smart Water System
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Author : Elias Farah
language : en
Publisher:
Release Date : 2016
Detection Of Water Leakage Using Innovative Smart Water System written by Elias Farah and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016 with categories.
This work concerns the use of the Smart Water Technology for the detection of water leakage. It is a part of SunRise project which aims at turning the Scientific Campus of the University of Lille into a large scale demonstrator site of the "Smart and Sustainable City". The campus is representative to a small town of 25000 inhabitants. This work is also a part of the European Project SmartWater4 Europe, which aims to develop 4 demonstrators of the Smart Water Technology. This thesis includes five parts. The first part includes a literature review concerning the technologies used in leakage detection. The second part presents the SunRise Smart City demonstrator, which is used as a basis for this thesis. This section details the instrumentation installed in the demo site as well as leak simulations tests to analyze the efficiency of an acoustic system of leakage detection. The third part focuses on the analysis of the water consumption at different time scales. Analysis concerns both sub-meters and bulk meters. It is conducted using a platform for the aggregation and the interpretation of the data. This part presents also major leakage events in 2015. The fourth part concerns leak detection using the water balance calculation based on the top down and bottom up approaches. It also presents the Active Leakage Control (ALC) strategy applied to the demo site in order to reduce the level of Non-Revenue Water (NRW). The last part concerns the use of advanced methods for leak detection with application on the campus data. These methods include the Comparison of Flow Pattern Distribution Method (CFPD), the Minimum Night Flow (MNF) method and two developed statistical approaches.
Development Of A Leakage Detection And Localization Technique For Real Time Applications In Water Distribution Networks
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Author :
language : en
Publisher:
Release Date : 2018
Development Of A Leakage Detection And Localization Technique For Real Time Applications In Water Distribution Networks written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018 with Dissertations, Academic categories.
Discusses the aim of this study is to develop an algorithm for the detection, localisation and estimation of background leakage flow in water distribution networks. In order to achieve this aim, the specific objectives of this study are to: Formulate the hydraulic model of water distribution networks using graph theory; Formulate a background leakage model; integrate the background leakage model formulation into the water distribution network hydraulic model and solved using Newton-based methodology; using the integrated hydraulic model in step 3, develop an algorithm for selecting critical pipes and for indicating possible location for pressure control elements; programme the formulated algorithm in MATLAB software environment; and validate the developed algorithm on water supply distribution networks data.
Final Report Assessment Of The Use Of Space Technology In The Monitoring Of Oil Spills And Ocean Pollution
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Author : William F. Croswell
language : en
Publisher:
Release Date : 1980
Final Report Assessment Of The Use Of Space Technology In The Monitoring Of Oil Spills And Ocean Pollution written by William F. Croswell and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1980 with categories.