Download or read book Stochastic Modeling for Water Consumption written by Tuo Shi and published by . This book was released on 2006 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Stochastic Water Demand Modelling written by Mirjam Blokker and published by IWA Publishing. This book was released on 2011-09-19 with total page 181 pages. Available in PDF, EPUB and Kindle. Book excerpt: Water quality processes in the drinking water distribution network are strongly influenced by the flow velocity and residence time of the water in the network. In order to understand how the water quality changes in the drinking water distribution network, a good understanding of hydraulics is required. Specifically in the periphery of the network, where customers are connected, the hydraulics can change rapidly. During the night time the water is almost stagnant and the residence time increases. In the morning, when everybody gets up and flushes the toilet and takes a shower, high flow velocities can occur. During the remainder of the day flow velocities are low. The stochastic endues model SIMDEUM was developed to simulate water use on a small time scale (1 s) and small spatial scale (per fixture). SIMDEUM enables a good model of flow velocities, residence times and the connected water quality processes in the water distribution network. Stochastic Water Demand Modelling: Hydraulics in Water Distribution Networks describes the requirements of hydraulics in water quality modelling and provides insight into the development of detailed residential and non-residential water demand models. The book illustrates the use of detailed demand models in water quality models with respect to the variation in residence times and the relation with particle accumulation and resuspension. The models are compared to measurements in several real drinking water distribution networks.
Download or read book Stochastic modelling of water consumption process and forecasting of water demand in towns written by Zbigniew Siwoń and published by . This book was released on 1986 with total page 145 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Stochastic Modeling for Water Quality Management written by Richard G. Krutchkoff and published by . This book was released on 1971 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Stochastic Hydrology and its Use in Water Resources Systems Simulation and Optimization written by J.B. Marco and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 470 pages. Available in PDF, EPUB and Kindle. Book excerpt: Stochastic hydrology is an essential base of water resources systems analysis, due to the inherent randomness of the input, and consequently of the results. These results have to be incorporated in a decision-making process regarding the planning and management of water systems. It is through this application that stochastic hydrology finds its true meaning, otherwise it becomes merely an academic exercise. A set of well known specialists from both stochastic hydrology and water resources systems present a synthesis of the actual knowledge currently used in real-world planning and management. The book is intended for both practitioners and researchers who are willing to apply advanced approaches for incorporating hydrological randomness and uncertainty into the simulation and optimization of water resources systems. (abstract) Stochastic hydrology is a basic tool for water resources systems analysis, due to inherent randomness of the hydrologic cycle. This book contains actual techniques in use for water resources planning and management, incorporating randomness into the decision making process. Optimization and simulation, the classical systems-analysis technologies, are revisited under up-to-date statistical hydrology findings backed by real world applications.
Download or read book Spatial temporal Statistical Modeling of Treated Drinking Water Usage written by Ernesto Arandia and published by . This book was released on 2013 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt: In essence, modern drinking water distribution systems (DWDSs) exist to continuously satisfy the demand of their users while complying with water quality regulations. It stands to reason that the tasks of quantifying, estimating, and forecasting water consumption are critical components of resource management, planning and operation in the urban water industry. Yet, due to the complex stochastic nature of water demands, such important tasks are typically performed in an oversimplified deterministic manner which at best produces conservative results. Of critical inter- est, therefore, is the adoption of quantitative methods and technologies for accurately estimating and forecasting water consumption. The concomitant benefits may include the reduction of energy costs, residence times, pressure, and leakage in the DWDS through the optimal operation of pumps, reservoirs, and supply.Computational models of DWDSs have widely been developed by water utilities and researchers and applied mainly in design and offline analyses. It is clear that the industry and research com- munity recognize the usefulness of hydraulic models as tools to analyze the complex interaction among the generally massive number of system's components. Significant efforts are sometimes devoted to the refinement of the models to ensure their parameters reflect reality as close as possi- ble. Curiously, however, the parameters that most greatly influence the model's behavior, i.e., the water demands, are normally overlooked. It is not uncommon to assume a single arbitrary daily pattern for the totality of the nodes in a network model. This research considers that a more valid approach is to combine a reliable hydraulic model of a DWDS with realistic stochastic models of water use developed from fine-resolution consumption data. The intent is to abandon the time-pattern paradigm and take benefit of the opportunity to ac- cess large volumes of automatic meter reading (AMR) data at the level of the individual consumer which are expected to increasingly become available in the water industry. Methodologies that may be applied in offline and online estimation of water consumption are presented. On the one hand, a stochastic model structure for synthetic generation of demands is studied which may be used in producing individual consumer as well as nodal demands in a hydraulic network model. The method comprises a parameterization that intends to represent the native characteristics of the data. On the other hand, methodologies to estimate and forecast nodal demands are proposed consistent with a real-time approach. One of the contributions of this work is the development of an AMR database which is made available to the public. The data provides access to water consumption measurements from an unprecedented number of users of different categories over an extended period of time. Data of such type is expected to increase in the near future, therefore, the database may be a useful test bed for algorithms that incorporate highly disaggregated measurements of water use in DWDSs. Another contribution is the adoption of models for synthetic generation of demands that vary peri- odically and resemble real AMR demands. In addition, this research examines different models to forecast water demand aggregated at useful scales. Finally, it applies the findings to estimate and forecast water consumption in a network zone and in real time. The method proposed is extensively assessed and compared against a conventional approach to forecast demands.
Download or read book Stochastic Modeling in Hydrogeology written by J. Jaime Gómez-Hernández and published by Frontiers Media SA. This book was released on 2021-07-14 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dr. Andres Alcolea is employed by Geo-Energie Suisse AG and is the funder and CEO of HydroGeoModels. All other Topic Editors declare no competing interests with regards to the Research Topic subject
Download or read book Stochastic Modelling of Drinking Water Treatment in Quantitative Microbial Risk Assessment written by Patrick W. M. H. Smeets and published by IWA Publishing. This book was released on 2010-12-13 with total page 153 pages. Available in PDF, EPUB and Kindle. Book excerpt: Special Offer: KWR Drinking Water Treatment Set - Buy all five books together and save a total £119! Safe drinking water is a basic need for all human beings. Preventing microbial contamination of drinking water is of primary concern since endemic illness and outbreaks of infectious diseases can have significant social and economic consequences. Confirming absence of indicators of faecal contamination by water analysis only provides a limited verification of safety. By measuring pathogenic organisms in source water and modelling their reduction by treatment, a higher level of drinking water safety can be verified. This book provides stochastic methods to determine reduction of pathogenic microorganisms by drinking water treatment. These can be used to assess the level and variability of drinking water safety while taking uncertainty into account. The results can support decisions by risk managers about treatment design, operation, monitoring, and adaptation. Examples illustrate how the methods can be used in water safety plans to improve and secure production of safe drinking water. More information about the book can be found on the Water Wiki in an article written by the author here: http://www.iwawaterwiki.org/xwiki/bin/view/Articles/Quantifyingmicro-organismremovalforsafedrinkingwatersupplies
Download or read book Stochastic Modeling for Water Quality Management written by Stochastics Incorporated (Blacksburg, Va.) and published by . This book was released on 1971 with total page 395 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Methods of Estimating Loads in Plumbing Systems written by Roy B. Hunter and published by . This book was released on 1940 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Stochastic and Statistical Methods in Hydrology and Environmental Engineering written by Keith W. Hipel and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt: Objectives The current global environmental crisis has reinforced the need for developing flexible mathematical models to obtain a better understanding of environmental problems so that effective remedial action can be taken. Because natural phenomena occurring in hydrology and environmental engineering usually behave in random and probabilistic fashions, stochastic and statistical models have major roles to play in the protection and restoration of our natural environment. Consequently, the main objective of this edited volume is to present some of the most up-to-date and promising approaches to stochastic and statistical modelling, especially with respect to groundwater and surface water applications. Contents As shown in the Table of Contents, the book is subdivided into the following main parts: GENERAL ISSUES PART I PART II GROUNDWATER PART III SURFACE WATER PART IV STOCHASTIC OPTIMIZATION PART V MOMENT ANALYSIS PART VI OTHER TOPICS Part I raises some thought-provoking issues about probabilistic modelling of hydro logical and environmental systems. The first two papers in Part I are, in fact, keynote papers delivered at an international environmetrics conference held at the University of Waterloo in June, 1993, in honour of Professor T. E. Unny. In his keynote pa per, Dr. S. J. Burges of the University of Washington places into perspective the historical and future roles of stochastic modelling in hydrology and environmental engineering. Additionally, Dr. Burges stresses the need for developing a sound scien tific basis for the field of hydrology. Professor P. E.
Download or read book Stochastic Modeling for Real time Water Quality Control written by Yoram J. Litwin and published by . This book was released on 1974 with total page 560 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Water Resource Systems Planning and Management written by Daniel P. Loucks and published by Springer. This book was released on 2017-03-02 with total page 635 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is open access under a CC BY-NC 4.0 license. This revised, updated textbook presents a systems approach to the planning, management, and operation of water resources infrastructure in the environment. Previously published in 2005 by UNESCO and Deltares (Delft Hydraulics at the time), this new edition, written again with contributions from Jery R. Stedinger, Jozef P. M. Dijkman, and Monique T. Villars, is aimed equally at students and professionals. It introduces readers to the concept of viewing issues involving water resources as a system of multiple interacting components and scales. It offers guidelines for initiating and carrying out water resource system planning and management projects. It introduces alternative optimization, simulation, and statistical methods useful for project identification, design, siting, operation and evaluation and for studying post-planning issues. The authors cover both basin-wide and urban water issues and present ways of identifying and evaluating alternatives for addressing multiple-purpose and multi-objective water quantity and quality management challenges. Reinforced with cases studies, exercises, and media supplements throughout, the text is ideal for upper-level undergraduate and graduate courses in water resource planning and management as well as for practicing planners and engineers in the field.
Download or read book Stochastic Modeling of Water Movement in the Saturated unsaturated Zone written by Sang-Ok Chung and published by . This book was released on 1985 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Stochastic Modeling of Water Resources Systems written by Mohamed Halim Salem and published by . This book was released on 1982* with total page 171 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Stochastic Structure of Water Use Time Series written by Jose D. Salas and published by . This book was released on 1972 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Stochastic Modeling of Water Flow Through a Variably saturated Heterogeneous Field at Idaho National Laboratory written by Limin Yang and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
