Verification And Control Of Pressure Transients And Intrusion In Distribution Systems
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Verification And Control Of Pressure Transients And Intrusion In Distribution Systems
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Author : American Water Works Association. Research Foundation
language : en
Publisher:
Release Date : 2004
Verification And Control Of Pressure Transients And Intrusion In Distribution Systems written by American Water Works Association. Research Foundation and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with categories.
Verification And Control Of Pressure Transients And Intrusion In Distribution Systems
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Author : M. Friedman
language : en
Publisher: International Water Assn
Release Date : 2005
Verification And Control Of Pressure Transients And Intrusion In Distribution Systems written by M. Friedman and has been published by International Water Assn this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with Technology & Engineering categories.
The objectives of this project were to verify that
Susceptibility Of Distribution Systems To Negative Pressure Transients
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Author : Kala K. Fleming
language : en
Publisher: American Water Works Association
Release Date : 2006
Susceptibility Of Distribution Systems To Negative Pressure Transients written by Kala K. Fleming and has been published by American Water Works Association this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with Water categories.
Low or negative pressure transients (also called surge or water hammer) create temporary opportunities for external chemical and microbial contaminants at higher pressure to enter the water distribution system, creating potential health hazard and potential weakening of distribution pipes, leading to failure. This study investigates how such events as power outages, pump shutdowns, valve operations, main flushing, firefighting, and main breaks can create significant rapid, temporary drops in system pressure. The report offers useful recommendations for using surge models to optimally locate pressure monitors and to minimize the occurrence and impact from low- and negative-pressure transients.
Drinking Water Distribution Systems
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Author : National Research Council
language : en
Publisher: National Academies Press
Release Date : 2007-01-22
Drinking Water Distribution Systems written by National Research Council and has been published by National Academies Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007-01-22 with Science categories.
Protecting and maintaining water distributions systems is crucial to ensuring high quality drinking water. Distribution systems-consisting of pipes, pumps, valves, storage tanks, reservoirs, meters, fittings, and other hydraulic appurtenances-carry drinking water from a centralized treatment plant or well supplies to consumers' taps. Spanning almost 1 million miles in the United States, distribution systems represent the vast majority of physical infrastructure for water supplies, and thus constitute the primary management challenge from both an operational and public health standpoint. Recent data on waterborne disease outbreaks suggest that distribution systems remain a source of contamination that has yet to be fully addressed. This report evaluates approaches for risk characterization and recent data, and it identifies a variety of strategies that could be considered to reduce the risks posed by water-quality deteriorating events in distribution systems. Particular attention is given to backflow events via cross connections, the potential for contamination of the distribution system during construction and repair activities, maintenance of storage facilities, and the role of premise plumbing in public health risk. The report also identifies advances in detection, monitoring and modeling, analytical methods, and research and development opportunities that will enable the water supply industry to further reduce risks associated with drinking water distribution systems.
Surge Analysis And The Wave Plan Method
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Author : Srinivasa Lingireddy
language : en
Publisher: KYPipe LLC
Release Date : 2021-06-14
Surge Analysis And The Wave Plan Method written by Srinivasa Lingireddy and has been published by KYPipe LLC this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-06-14 with Technology & Engineering categories.
The book describes the causes and effects of transient (water hammer) events in liquid-filled pipes, and describes how the powerful and stable Wave Plan Method (WPM) can be used to address transients during surge modeling. The authors compare and contrast WPM with the Method of Characteristics (MOC), which is the other widely-used surge analysis tool. While MOC can be useful for many situations, the larger and more complex a model becomes, the more the computational efficiency of WPM is necessary to avoid longer and longer analysis times. The authors also describe how WPM is more generalizable than MOC, which is a term that describes a suite of tools consisting of several variants that were developed to address different modeling situations. This book provides details on surge modeling in general and the use of WPM in particular. This includes pressure attenuation, determination of wave speeds in different pipe types and various liquid media, pump and turbine characteristics curves, and the effects of boundary conditions. The discussion of boundary conditions includes an extensive look at the effects of the air-water interface as it applies to bulk air intrusion into pipelines, and as it relates to the use of air/vacuum valves as surge protection. The authors discuss surge protection design for different real-world scenarios, and how to model of a full list of surge control devices, including a detailed discussion of check valves. Last, the book describes the assumptions and uncertainties encountered during data collection and model building, and examines the potential effect of these uncertainties. Where uncertainties cannot be mitigated, the authors discuss ways to increase the safety factor of surge protection designs.
Integrating Water Systems
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Author : Joby Boxall
language : en
Publisher: CRC Press
Release Date : 2009-07-24
Integrating Water Systems written by Joby Boxall and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009-07-24 with Science categories.
A collection of articles by leading international experts on modeling and control of potable water distribution and sewerage collection systems, focusing on advances in sensors, instrumentation and communications technologies; assessment of sensor reliability, accuracy and fitness; data management including SCADA and GIS; system
Development Of Distribution System Water Quality Optimization Plans
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Author : Melinda J. Friedman
language : en
Publisher: American Water Works Association
Release Date : 2005
Development Of Distribution System Water Quality Optimization Plans written by Melinda J. Friedman and has been published by American Water Works Association this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with Water categories.
CD-ROM contains chapter 4 and appendices A & B.
Potable Water
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Author : Tamim Younos
language : en
Publisher: Springer
Release Date : 2014-09-15
Potable Water written by Tamim Younos and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-09-15 with Science categories.
This volume presents a unique and comprehensive glimpse of current and emerging issues of concern related to potable water. The themes discussed include: (1) historical perspective of the evolution of drinking water science and technology and drinking water standards and regulations; (2) emerging contaminants, water distribution problems and energy demand for water treatment and transportation; and (3) using alternative water sources and methods of water treatment and distribution that could resolve current and emerging global potable problems. This volume will serve as a valuable resource for researchers and environmental engineering students interested in global potable water sustainability and a guide to experts affiliated with international agencies working toward providing safe water to global communities.
Encyclopedia Of Environmental Health
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Author :
language : en
Publisher: Elsevier
Release Date : 2019-08-22
Encyclopedia Of Environmental Health written by and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-08-22 with Science categories.
Encyclopedia of Environmental Health, Second Edition, Six Volume Set presents the newest release in this fundamental reference that updates and broadens the umbrella of environmental health, especially social and environmental health for its readers. There is ongoing revolution in governance, policies and intervention strategies aimed at evolving changes in health disparities, disease burden, trans-boundary transport and health hazards. This new edition reflects these realities, mapping new directions in the field that include how to minimize threats and develop new scientific paradigms that address emerging local, national and global environmental concerns. Represents a one-stop resource for scientifically reliable information on environmental health Fills a critical gap, with information on one of the most rapidly growing scientific fields of our time Provides comparative approaches to environmental health practice and research in different countries and regions of the world Covers issues behind specific questions and describes the best available scientific methods for environmental risk assessment
Securing Water And Wastewater Systems
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Author : Robert M. Clark
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-10-04
Securing Water And Wastewater Systems written by Robert M. Clark and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-10-04 with Technology & Engineering categories.
Urban water and wastewater systems have an inherent vulnerability to both manmade and natural threats and disasters including droughts, earthquakes and terrorist attacks. It is well established that natural disasters including major storms, such as hurricanes and flooding, can effect water supply security and integrity. Earthquakes and terrorist attacks have many characteristics in common because they are almost impossible to predict and can cause major devastation and confusion. Terrorism is also a major threat to water security and recent attention has turned to the potential that these attacks have for disrupting urban water supplies. There is a need to introduce the related concept of Integrated Water Resources Management which emphasizes linkages between land-use change and hydrological systems, between ecosystems and human health, and between political and scientific aspects of water management. An expanded water security agenda should include a conceptual focus on vulnerability, risk, and resilience; an emphasis on threats, shocks, and tipping points; and a related emphasis on adaptive management given limited predictability. Internationally, concerns about water have often taken a different focus and there is also a growing awareness, including in the US, that water security should include issues related to quantity, climate change, and biodiversity impacts, in addition to terrorism. This presents contributions from a group of internationally recognized experts that attempt to address the four areas listed above and includes suggestions as to how to deal with related problems. It also addresses the new and potentially growing issue of cyber attacks against water and waste water infrastructure including descriptions of actual attacks, making it of interest to scholars and policy-makers concerned with protecting the water supply.