A Methodology For Optimal Design Of Water Distribution Systems
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A Methodology For Optimal Design Of Water Distribution Systems
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Author : William Francis Rowell
language : en
Publisher:
Release Date : 1979
A Methodology For Optimal Design Of Water Distribution Systems written by William Francis Rowell and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1979 with Municipal water supply categories.
A comprehensive methodology for the design of municipal water distribution systems that explicitly incorporates reliability and performance into the system design is developed. The complex design problem is decomposed within the context of a three-level hierarchically integrated system of models. The first and second level models combine to select the links in the distribution system layout. The third level model accomplishes the detailed system design for the layout from the upper level models. Two alternative first level models, a shortest path tree and a nonlinear programming model, are developed to select the minimum cost tree layout. Two second level, complementary 0-1 integer programming models are developed to select the loop-forming links for the minimum cost tree layout. The third level nonlinear programming model optimizes the detailed distribution system design (link diameters, pump capacities, elevated storage heights, and valve resistance) of the resulting network layout with respect to distribution system performance under expected emergency loading conditions (fire demand, broken links, pump outage). This detailed design is performed subject to satisfying steady state conditions, minimum performance levels under normal loading conditions, and maximum budget level. The methodology is applied to the design of a real life water distribution system. (Author).
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.
Computationally Intensive Design Of Water Distribution Systems
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Author : Manuel Alejandro Andrade-Rodriguez
language : en
Publisher:
Release Date : 2013
Computationally Intensive Design Of Water Distribution Systems written by Manuel Alejandro Andrade-Rodriguez and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013 with categories.
The burdensome capital cost of urban water distribution systems demands the use of efficient optimization methods capable of finding a relatively inexpensive design that guarantees a minimum functionality under all conditions of operation. The combinatorial and nonlinear nature of the optimization problem involved accepts no definitive method of solution. Adaptive search methods are well fitted for this type of problem (to which more formal methods cannot be applied), but their computational requirements demand the development and implementation of additional heuristics to find a satisfactory solution. This work seeks to employ adaptive search methods to enhance the search process used to find the optimal design of any water distribution system. A first study presented here introduces post-optimization heuristics that analyze the best design obtained by a genetic algorithm--arguably the most popular adaptive search method--and perform an ordered local search to maximize further cost savings. When used to analyze the best design found by a genetic algorithm, the proposed post-optimization heuristics method successfully achieved additional cost savings that the genetic algorithm failed to detect after an exhaustive search. The second study herein explores various ways to improve artificial neural networks employed as fast estimators of computationally intensive constraints. The study presents a new methodology for generating any large set of water supply networks to be used for the training of artificial neural networks. This dataset incorporates several distribution networks in the vicinity of the search space in which the genetic algorithm is expected to focus its search. The incorporation of these networks improved the accuracy of artificial neural networks trained with such a dataset. These neural networks consistently showed a lower margin of error than their counterparts trained with conventional training datasets populated by randomly generated distribution networks.
A Heuristic Method For The Optimal Design Of Water Distribution Systems
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Author : Mahesh Shah
language : en
Publisher:
Release Date : 1987
A Heuristic Method For The Optimal Design Of Water Distribution Systems written by Mahesh Shah and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1987 with Water categories.
Design Of Water Supply Pipe Networks
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Author : Prabhata K. Swamee
language : en
Publisher: John Wiley & Sons
Release Date : 2008-01-09
Design Of Water Supply Pipe Networks written by Prabhata K. Swamee and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008-01-09 with Technology & Engineering categories.
This authoritative resource consolidates comprehensive information on the analysis and design of water supply systems into one practical, hands-on reference. After an introduction and explanation of the basic principles of pipe flows, it covers topics ranging from cost considerations to optimal water distribution design to various types of systems to writing water distribution programs. With numerous examples and closed-form design equations, this is the definitive reference for civil and environmental engineers, water supply managers and planners, and postgraduate students.
Optimal Design Of Water Distribution Networks Using Harmony Search
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Author : Zong Woo Geem
language : en
Publisher: LAP Lambert Academic Publishing
Release Date : 2009-08
Optimal Design Of Water Distribution Networks Using Harmony Search written by Zong Woo Geem 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 2009-08 with categories.
Traditional mathematical optimization methods, such as linear programming (LP), nonlinear programming (NLP) and dynamic programming (DP), often have drawbacks in practice. To overcome these drawbacks, various meta-heuristic optimization techniques have been developed. This study proposes a new meta- heuristic algorithm which mimics musical performance, and names as Harmony Search (HS). The HS algorithm is applied to five problems: a continuous function optimization, a hydrologic parameter calibration, a traveling salesman problem, an optimal design of water supply network, and an optimal expansion of water supply network. The comparison of solutions obtained by HS and other optimization techniques shows that the HS algorithm can find better solutions in less number of iterations. The new algorithm can solve continuous-variable problems as well as discrete- variable problems without unnecessary restrictions imposed by calculus-based algorithms.
Optimal Design And Operation Of Water Distribution Systems
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Author : U. Shamir
language : en
Publisher:
Release Date : 1973
Optimal Design And Operation Of Water Distribution Systems written by U. Shamir and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1973 with categories.
Optimal Design Of Regional Village Water Supply Systems
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Author : Mohamed L. Al-Eryani
language : en
Publisher:
Release Date : 1984
Optimal Design Of Regional Village Water Supply Systems written by Mohamed L. Al-Eryani and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1984 with Dissertations, Academic categories.
A Modified Lpg Method For Optimal Design Of Looped Water Distribution Networks
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Author : O. Fujiwara
language : en
Publisher:
Release Date : 1986
A Modified Lpg Method For Optimal Design Of Looped Water Distribution Networks written by O. Fujiwara and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1986 with categories.
Optimal Water Quality Management In Surface Water Systems And Energy Recovery In Water Distribution Networks
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Author : Ilker Tonguc Telci
language : en
Publisher:
Release Date : 2012
Optimal Water Quality Management In Surface Water Systems And Energy Recovery In Water Distribution Networks written by Ilker Tonguc Telci and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with Energy development categories.
Two of the most important environmental challenges in the 21st century are to protect the quality of fresh water resources and to utilize renewable energy sources to lower greenhouse gas emissions. This study contributes to the solution of the first challenge by providing methodologies for optimal design of real-time water quality monitoring systems and interpretation of data supplied by the monitoring system to identify potential pollution sources in river networks. In this study, the optimal river water quality monitoring network design aspect of the overall monitoring program is addressed by a novel methodology for the analysis of this problem. In this analysis, the locations of sampling sites are determined such that the contaminant detection time is minimized for the river network while achieving maximum reliability for the monitoring system performance. The data collected from these monitoring stations can be used to identify contamination source locations. This study suggests a methodology that utilizes a classification routine which associates the observations on a contaminant spill with one or more of the candidate spill locations in the river network. This approach consists of a training step followed by a sequential elimination of the candidate spill locations which lead to the identification of potential spill locations. In order to contribute the solution of the second environmental challenge, this study suggests utilizing available excess energy in water distribution systems by providing a methodology for optimal design of energy recovery systems. The energy recovery in water distribution systems is possible by using micro hydroelectric turbines to harvest available excess energy inevitably produced to satisfy consumer demands and to maintain adequate pressures. In this study, an optimization approach for the design of energy recovery systems in water distribution networks is proposed. This methodology is based on finding the best locations for micro hydroelectric plants in the network to recover the excess energy. Due to the unsteady nature of flow in water distribution networks, the proposed methodology also determines optimum operation schedules for the micro turbines.