An Optimization Model For A Water Distribution Network Design
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An Optimization Model For A Water Distribution Network Design
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Author : Bolaji Fatai Sule
language : en
Publisher:
Release Date : 2020-03-17
An Optimization Model For A Water Distribution Network Design written by Bolaji Fatai Sule and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-03-17 with categories.
A Water distribution system connects consumers to sources of water, using hydraulic components, such as pipes, valves, and reservoirs. The engineer faced with the design of such a system, or of additions to an existing system, has to select the sizes of its components. Also he has to consider the way in which the operational components, pumps and valves, will be used to supply the required demands with adequate pressures. The network has to perform adequately under varying demand loads, hydraulic and operational conditions. Operational decisions for these loads are essentially part of the design process, since one cannot separate the so-called design decisions, i.e. the sizing of components, from the operational decisions; they are two inseparable parts of one problem. This work has therefore presented a method for optimizing the design of a water distribution network system using pipe diameter as decision variable under the required demand loading and hydraulic conditions. It has been established that increasing the minimum pressure will lead to the reduction in the required pipe diameter which will in turn reduce the cost of installation. The modelling approach developed can be used by engineers and planners to obtain economical pipe sizes for a network designed to serve newly planned layouts.
Optimal Design Of Water Distribution Networks
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Author : Pramod R. Bhave
language : en
Publisher: Alpha Science Int'l Ltd.
Release Date : 2003
Optimal Design Of Water Distribution Networks written by Pramod R. Bhave and has been published by Alpha Science Int'l Ltd. this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with Science categories.
Design of water distribution networks is traditionally based on trial-and-approach in which the designer assumes, based on experience and judgment, sizes of different elements and successively modifies them until a network with satisfactory hydraulic performance is obtained. This text covers: Essential hydraulic, economic optimization principles. Theory is developed gradually for optimal design of simple, single-source branched networks subjected to single loading to complex, multiple-source looped networks subjected to multiple loading. Strengthening and expansion of existing networks and also reliability-based design. Several illustrative examples enabling the reader to apply them in practice- approximately 100 line drawings.
Water Distribution System Handbook
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Author : Larry W. Mays
language : en
Publisher: McGraw-Hill Companies
Release Date : 2000
Water Distribution System Handbook written by Larry W. Mays and has been published by McGraw-Hill Companies this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with Nature categories.
"The only book of its kind, this compendium brings you detailed coverage of the latest methods, materials, techniques, and tools for water distribution systems." "Written by top experts that are members of the American Water Works Association, the American Society of Civil Engineers, and other leading professional organizations, the Water Distribution Systems Handbook provides specialists in each area to serve as your consultants. Each chapter provides expert, detailed, professional guidance on an important aspect of water distribution systems."--BOOK JACKET.
Modelling Reliability Based Optimization Design For Water Distribution Networks
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Author : Mohamed Abdel Moneim
language : en
Publisher:
Release Date : 2011
Modelling Reliability Based Optimization Design For Water Distribution Networks written by Mohamed Abdel Moneim and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with Computers categories.
Modelling Reliability Based Optimization Design for Water Distribution Networks.
Optimization Of Water Distribution Networks Using Genetic Algorithm
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Author : Gerçek Güç
language : en
Publisher: LAP Lambert Academic Publishing
Release Date : 2011-10
Optimization Of Water Distribution Networks Using Genetic Algorithm written by Gerçek Güç 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 2011-10 with categories.
This study gives a description about the development of a computer model, RealPipe, which relates genetic algorithm (GA) to the well known problem of least-cost design of water distribution network. GA methodology is an evolutionary process, basically imitating evolution process of nature. GA is essentially an efficient search method basically for nonlinear optimization cases. The genetic operations take place within the population of chromosomes. By means of various operators, the genetic knowledge in chromosomes change continuously and the success of the population progressively increases as a result of these operations. GA optimization is also well suited for optimization of water distribution systems, especially large and complex systems. The primary objective of this study is optimization of a water distribution network by GA. GA operations are realized on a special program developed by the author called RealPipe. RealPipe optimizes given water network distribution systems by considering capital cost of pipes only.
New Methodologies For The Reliability Based Analysis And Design Of Water Distribution Systems
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Author : University of Texas at Austin. Center for Research in Water Resources
language : en
Publisher:
Release Date : 1989
New Methodologies For The Reliability Based Analysis And Design Of Water Distribution Systems written by University of Texas at Austin. Center for Research in Water Resources and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1989 with Water categories.
Reliability Based Optimization Model Of Water Distribution Systems
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Author : Yu-Chun Su
language : en
Publisher:
Release Date : 1986
Reliability Based Optimization Model Of Water Distribution Systems written by Yu-Chun Su and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1986 with Water categories.
Advances In Water Distribution Networks
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Author : Giuseppe Pezzinga
language : en
Publisher: MDPI
Release Date : 2019-02-28
Advances In Water Distribution Networks written by Giuseppe Pezzinga and has been published by MDPI this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-02-28 with Technology & Engineering categories.
The Special Issue on Advances in Water Distribution Networks (WDNs) explores four important topics of research in the framework of WDNs, namely simulation and optimization modelling, topology and partitioning, water quality, and service effectiveness. With regard to the first topic, the following aspects are addressed: pressure-driven formulations, algorithms for the optimal location of control valves to minimize leakage, the benefits of water discharge prediction for the remote real time control of valves, and transients generated by pumps operating as turbines. In the context of the second topic, a topological taxonomy of WDNs is presented, and partitioning methods for the creation of district metered areas are compared. In relation to the third topic, the vulnerability to trihalomethane is assessed, and a statistical optimization model to minimize heavy metal releases is presented. Finally, the fourth topic focusses on the estimation of non-revenue water, including leakage and unauthorized consumption, and on the assessment of service under intermittent supply conditions.
Maximum Entropy Based Evolutionary Optimization Of Water Distribution Networks Under Multiple Operating Conditions And Self Adaptive Search Space Reduction Method
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Author : Anna Marzena Czajkowska
language : en
Publisher:
Release Date : 2016
Maximum Entropy Based Evolutionary Optimization Of Water Distribution Networks Under Multiple Operating Conditions And Self Adaptive Search Space Reduction Method written by Anna Marzena Czajkowska 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.
One of the complexities in designing WDN is evaluation of network performance. The accurate network performance measures such as reliability or failure tolerance are very time consuming calculations, thus surrogate measures are used for water distribution network (WDN) design optimization. Entropy is particularly advantageous since it involves only the flow in the pipe and the demands at the nodes. This thesis developed efficient new computational methods based on the maximum entropy formalism for the optimization of water distribution systems. Thus the maximum entropy based design approach has been extended here to include multiple operation conditions. Also, the path-related properties of the flow entropy have been exploited to develop a new self-adaptive approach for solution space reduction in multiobjective evolutionary optimization of water distribution systems that resulted in a significant reduction in the number of function evaluations required to find optimal and near optimal solutions. The novelty and originality of the current research are presented next. A new penalty-free multi-objective evolutionary optimization approach for the design of WDNs has been developed. It combines genetic algorithm with least cost design and maximum entropy. The approach can handle single operating conditions (SOC) as well as multiple operating conditions (MOC) for any given network. Previously, most of the work has been done for single loading patterns and it was assumed that nodal demands are constant. In reality nodal demand vary over the time so network designed to satisfy one operating condition might not be able to satisfy other loading patterns (i.e. pressure constraints might not be meet). The model has been applied to three well known water distribution networks. The approach has also been implemented on a large real-world network in the literature. Three different methods of designing for multiple loading patterns were investigated. Extensive testing proved that MOC outperform SOC in terms of hydraulic feasibility, pipe size distribution and reliability. The approach is computationally efficient and robust. The above mentioned penalty-free approach has been extended to form a module that would improve the convergence criteria of the GA by reducing its search space. For large real-world network GA might require extremely large number of function evaluations which could lead to delayed convergence. By reducing the search space, the GA's effectiveness and efficiency will increase as the algorithm will identify the solutions in smaller number of function evaluations. The search space reduction method presented herein is based on entropy and uses the importance of every path through network, which is an inherent property of the entropy function. The developed algorithm is dynamic, self-adaptive and does not require pre-defining the reduced sets of candidate diameters for each pipe. The method has been applied to a large network from the literature. Two cases were studied, one based on full search space and one for reduce search space (RSS) approach. Rapid stabilization was observed for the results obtained using RSS.
Modeling Analysis And Design Of Water Distribution Systems
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Author : Lee Cesario
language : en
Publisher:
Release Date : 1995
Modeling Analysis And Design Of Water Distribution Systems written by Lee Cesario and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with Science categories.