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Showing 1 to 20 of 245 for “"Water Distribution"”.
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Bursts identification in water distribution systems
… the identification of burst locations in water distribution systems (WDS) by analysis of field and simulation experimental data. This required the development of a new hybrid method of burst detection and sizing, and also a burst location identification algorithm. Generally, existing …
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Global optimization of water distribution systems
… procedure GLOBAL for the global optimization of water distribution systems is presented. The procedure identifies an optimal tree layout for the network and augments it with loop forming links to assure reliability. Thus, the chosen optimal layout in judiciously subjected to various flow …
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Characterization of water distribution in sludges
Knowledge of water distribution in sludges is important in developing a better understanding of the mechanisms by which various fractions of water are bound to the sludge matrix as well as the extent to which sludges may be dewatered in an economic manner. Various models have been proposed in the …
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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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Optimization of Looped Water Distribution System Designs
Made available in DSpace on 2014-12-13T19:31:57Z (GMT). No. of bitstreams: 1 8004256.pdf: 2696088 bytes, checksum: 45b687dcd81b9b648309218795ff1a1d (MD5) Previous issue date: 1979
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Cavitation and Bubble Formation in Water Distribution Systems
… gas are not directly relevant to natural water systems and require a redefined cavitation inception number which considers dissolved gases. In a pressurized water distribution system, classical cavitation is only expected to occur at extreme negative pressure caused by water hammer or at …
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Strategic valve locations in a water distribution system
Valves play a critical role in a water distribution system for subsystem isolation and flow or pressure control. Among them, subsystem isolation is required to repair or to rehabilitate a broken component and can be done by closing adjacent valves. To evaluate the role of valves, the concept of …
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Pressure, leakage and energy management in water distribution systems
… problem represents the total cost of water treatment and pumping energy. Developed network scheduling algorithm consists of two stages. The first stage involves solving a continuous problem, where operation of each pump is described by continuous variable. Subsequently, the second …
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A Model for Determining Leakage in Water Distribution Systems
… cause significant problems for utilities and water users in terms of lost revenue and interrupted service. In many cities the leakage is as high as forty percent. A water audit is carried out to assess system-wide leakage. However, to detect leakage at the level of a pipeline, a physical …
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Head-dependent modelling and optimisation of water distribution systems
The construction, operation and maintenance of water distribution systems (WDSs) involve a huge capital investment and it is essential to design and manage them in a cost effective way. The optimisation approaches (e.g. evolutionary algorithms) for optimal design or operation of WDSs require …
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Data based predictive control: Application to water distribution networks
… with complex industrial infrastructures such as water distribution networks. This sort of systems have several inputs and out- puts, complicate nonlinear dynamics, binary actuators and they are usually perturbed by disturbances and noise and require real-time control implemen- tation. The …
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Iron and manganese accumulation potential in water distribution networks
The occurrence of discoloured drinking water at customers’ taps, which is mainly caused by the deposition and release of iron (Fe) and manganese (Mn) in water distribution networks (WDNs), is a major concern for both customers and water companies. Increased concentrations of Fe and Mn in WDNs can …
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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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Uncertainty Analysis and Calibration of Water Distribution Quality Models
Water distribution system modeling can be used as a basis of planning and operation decisions. However, model accuracy and uncertainty will impact the model based decisions. Model prediction uncertainty results from uncertainty in model parameters that are determined through calibration or are …
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Redundancy-constrained minimum-cost design of water distribution networks
Redundancy of looped water distribution networks is quantified with expected shortage, a reliability surrogate which can represent frequency, duration and severity of damages caused by failures of components. Based on this surrogate and its variations (total expected shortage and allowable shortage …
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Maximum entropy principle approach for water distribution network optimization
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2025-10-19 without embargo terms
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Realistic modelling of leakage in water distribution pipe networks
… stochastic model for network leak generation and distribution was developed. The conventional and the modified software were applied to different levels of stochastically generated and distributed leakage in three differently sized pipe networks. It was found that the conventional power leakage …
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Chlorine dioxide and by-products in water distribution systems
… and/or a post-disinfectant in several water treatment plants in the United States. Chlorine dioxide is associated with its byproducts chlorite and chlorate. Chlorine dioxide, chlorine, chlorite and chlorate were sampled in four distribution systems where chlorine dioxide is used for …
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