Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 18 of 18 for “"Water Networks"”.
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Impact of emerging water scenarios on performance of urban water networks
… have prompted the development and adoption of water-demand management strategies. Water and energy savings from increasingly efficient technologies, diversified water sources, and water savings policies are typically quantified from an individual demand-side basis, but network-wide potential is …
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ADVANCED MODELING AND EFFICIENT OPTIMIZATION METHODS FOR REAL-TIME RESPONSE IN WATER NETWORKS
In response to a contamination incident in water distribution networks, effective mitigation procedures must be planned. Disinfectant booster stations can be used to neutralize a variety of contaminant and protect the public. In this thesis, two methods are proposed for the optimal placement of …
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Procedurally generated realistic virtual rural worlds
… plant species selection, plant distributions and water networks must be deduced such that they realistically reflect the environment being modelled. As virtual worlds grow in size and complexity, climates vary on the terrain itself and a single ecosystem is no longer sufficient to realistically …
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Towards practical pressure-based leakage characterisation of water distribution pipes with a novel pipe condition assessment device
… as effective ways of mitigating and managing water losses in an age where water scarcity has become prevalent. To this end, several methods have been developed and suggested with different benefits and drawbacks The presently available leakage detection methods, however, fail to identify and …
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Analysis and design of an in-pipe system for water leak detection
Leaks are a major factor for unaccounted water losses in almost every water distribution network. Pipeline leak may result, for example, from bad workmanship or from any destructive cause, due to sudden changes of pressure, corrosion, cracks, defects in pipes or lack of maintenance. The problem of …
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Nexus of water and energy: resilience through decentralized operation
… to critical infrastructure including power and water networks. Not surprisingly, socially vulnerable groups are disproportionately affected by outages in power and water. The focus of this research is on proposing strategies for reliable and resilient operation of power and water networks, while …
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Horizontal integration under yardstick competition
… of vital economic importance, such as energy and water networks, the welfare effects of horizontal integration in these settings have largely escaped scientific scrutiny. The dissertation therefore studies the welfare implications of horizontal integration under yardstick competition and …
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Modelling water quality for water distribution systems
Maintaining water quality in distribution systems has become a prominent issue in the study of water networks. This thesis concentrates on disinfectant and particle counts as two important indicators of water quality. The models discussed in this work are based on data collected by the author. The …
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Household water treatment and safe storage product development in Ghana
… chemical contaminants can infiltrate into piped water systems, especially when the system is intermittent. Ghana has been suffering from aged and intermittent piped water networks, and an added barrier of protection is needed for improved public health. Household water treatment and safe storage …
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Parametric computation of equilibria and flows
… world applications, such as flows in physical networks like electrical, gas, or water networks, flows in traffic networks, or flows of goods in logistic networks. More precisely, many of these applications can be modeled either as minimum cost flows or equilibria of network games, sometimes …
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Decentralized Co-Optimization of Water and Energy Distribution Systems
The increasing interdependence between water and energy systems has intensified the need for coordinated planning and operational strategies that enhance the efficiency, resilience, and sustainability of both infrastructures. Traditional approaches manage electrical power and potable water networks …
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Optimal design of water distribution networks with reliability considerations
… that may be used to assess the reliability of water distribution systems. Such a tool can be used by design engineers to create systems which are both economical in total cost commensurate with meeting targets for a specified level of reliability.The introduction describes how water supply and …
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Cybersecurity for urban critical infrastructure
… infrastructure which includes the electric grid, water networks, transportation systems and public health and safety services are constantly being targeted by cyberattacks. Urban critical infrastructure has been increasingly connected to the internet for the purpose of operational convenience and …
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Stochastic Optimization and Optimal Control for Complex Networked Infrastructures
Networked infrastructures (e.g., power grids and water networks) are becoming increasingly complicated systems due to accelerating integration of distributed devices, increasing scale of network systems, heterogeneous distributed control strategies, nonlinear nature of physical models and …
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The hydrogeological investigation of worked coal measures rocks and its application to the modelling of groundwater flows
… place are often characterised by complex groundwater regimes. Many of the vast areas of disused and derelict terrain resulting from these activities, have now been developed as landfills. As landfill sites may constitute a major source of groundwater contamination, the hydrogeology of a site …
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Developing Multi-Scale Models for Water Quality Management in Drinking Water Distribution Systems
<p>Drinking water supply systems belong to the group of critical infrastructure systems that support the socioeconomic development of our modern societies. In addition, drinking water infrastructure plays a key role in the protection of public health by providing a common access to clean and safe …
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The water framework directive, paradigm shift or unrealized promises? A critical evaluation of its implementation from a boundary, economic and socio-political perspective
… of Directive 2000/60/EC, better known as the Water Framework Directive (WFD), resulted from efforts to create a coherent approach to water policy at the European scale. It requires surface waters (rivers, lakes, wetlands and transitional and coastal waters) to attain good ecological and …
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Ecological Limitations and Potentials of Artificial Aquatic Systems
… the hydroscape range from alteration of existing waterbodies to construction of new ones. The extent and ecosystem services of these systems are underexplored, but likely substantial and changing. Instead of simply accepting that artificial ecosystems have intrinsically low values, environmental …