scholarly journals Optimal reconstruction of water supply network under conditions of reduced water consumption

2019 ◽  
Vol 102 ◽  
pp. 03005 ◽  
Author(s):  
Roman V. Chupin ◽  
Minh Ngoc Pham ◽  
Viktor R. Chupin
Keyword(s):  
Water Supply ◽  
Water Consumption ◽  
Water Movement ◽  
Environmental Safety ◽  
Water Supply Systems ◽  
Industrial Enterprises ◽  
Operation Speed ◽  
Pumping Stations ◽  
Low Efficiency ◽  
Supply Systems

In recent years, due to the country's energy conservation policies in cities and towns, there has been a steady decline in the specific water consumption. Many industrial enterprises switched to water-saving technologies and circulating water supply systems. Such a policy favorably affects the environmental safety of territories by reducing wastewater discharges into water bodies and saves energy for pumping water and wastewater. At the same time, due to a decrease in the speed of water movement, its quality indicators deteriorate and stagnant zones appear, and due to the reduction of water consumption, pumping stations began to operate in low efficiency modes. The article proposes to solve this problem by decommissioning certain sections of the network and facilities, which improve the speed of other pipelines and provide pumping stations with the highest efficiency. For this purpose, a technique has been developed to optimize flows in existing water supply systems and its implementation in the Trace – BK software package. A new method of optimizing operating costs for water supply systems in the face of decreasing water consumption is proposed. This technique makes it possible to identify inefficient sections of network and take them out of operation while improving the operation speed of other pipeline and bring the operation of pumping stations to the mode with the highest efficiency.

PSO Applied to Reduce the Cost of Energy in Water Supply Networks

2013 ◽  
Vol 409-410 ◽  
pp. 703-706 ◽  
Author(s):  
Bruno Melo Brentan ◽  
Edevar Luvizotto Jr. ◽  
Lubienska Cristina L.J. Ribeiro
Keyword(s):  
Water Supply ◽  
Extended Period ◽  
Water Supply Systems ◽  
Operational Parameters ◽  
Supply Networks ◽  
Water Pumping ◽  
Cost Of Energy ◽  
Pumping Stations ◽  
The Cost ◽  
Supply Systems

The growth of urban population and subsequent expansion of the cities impose difficulties of gather a reliable water supply systems that attend the fluctuations of demand throughout the day, and their operation with appropriate hydraulic and operational parameters. The search of better routines for water pumping stations with both starting and stopping of pumps or use of variable speed devices has become increasingly common, and the motivation of this search is found in the need for energy saving. But the task is arduous and becomes fertile field for the application of modern techniques and robust optimization. Noteworthy are currently those that seek their inspiration in nature systems, such as Particle Swarm Optimization, which is based on intelligence of groups, such as schools of fish or swarms of bee. By this way, the present work aims to contribute to the topic, developing a hybrid algorithm (simulator-optimizer) for determination of optimized routines for pumping station i.e., routines that seek the best operational routine for an extended period of 24 hours.

scholarly journals Burst Detection in Water Distribution Systems: The Issue of Dataset Collection

2020 ◽  
Vol 10 (22) ◽  
pp. 8219
Author(s):  
Andrea Menapace ◽  
Ariele Zanfei ◽  
Manuel Felicetti ◽  
Diego Avesani ◽  
Maurizio Righetti ◽  
...  
Keyword(s):  
Water Supply ◽  
Water Consumption ◽  
Distribution System ◽  
Smart Grids ◽  
Distribution Systems ◽  
Water Distribution ◽  
Stochastic Modelling ◽  
Water Supply Systems ◽  
Consumption Data ◽  
Supply Systems

Developing data-driven models for bursts detection is currently a demanding challenge for efficient and sustainable management of water supply systems. The main limit in the progress of these models lies in the large amount of accurate data required. The aim is to present a methodology for the generation of reliable data, which are fundamental to train anomaly detection models and set alarms. Thus, the results of the proposed methodology is to provide suitable water consumption data. The presented procedure consists of stochastic modelling of water request and hydraulic pipes bursts simulation to yield suitable synthetic time series of flow rates, for instance, inlet flows of district metered areas and small water supply systems. The water request is obtained through the superimposition of different components, such as the daily, the weekly, and the yearly trends jointly with a random normal distributed component based on the consumption mean and variance, and the number of users aggregation. The resulting request is implemented into the hydraulic model of the distribution system, also embedding background leaks and bursts using a pressure-driven approach with both concentrated and distributed demand schemes. This work seeks to close the gap in the field of synthetic generation of drinking water consumption data, by establishing a proper dedicated methodology that aims to support future water smart grids.

scholarly journals Information technologies implementation for reducing water losses in water supply systems

2020 ◽  
Vol 164 ◽  
pp. 01005
Author(s):  
Dmitry Serov
Keyword(s):  
Water Supply ◽  
Water Consumption ◽  
Information Technologies ◽  
Automated System ◽  
Water Supply Systems ◽  
Water Losses ◽  
Saint Petersburg ◽  
Russian Water ◽  
Automation Systems ◽  
Supply Systems

The article discusses the elements of an automated system for collecting, storing and transmitting data on water consumption, modern metering devices, data collection and transmission devices. The author analyzes the shortcomings of existing accounting and analysis automation systems at Russian water utilities. A comprehensive approach to automated systems in the field of water consumption accounting is proposed. The article considers the experience of the State unitary enterprise “Vodokanal of Saint Petersburg” in the sphere development and application of a single automated complex for diagnostics, monitoring and management of the water supply network. The goals and main functions of the complex are revealed, the main stages and results of its implementation are presented.

scholarly journals System/engineering Regularities of the Municipal Water Sector Development

2013 ◽  
Author(s):  
Keyword(s):  
Water Supply ◽  
Environmental Safety ◽  
System Engineering ◽  
Water Supply Systems ◽  
Structural Form ◽  
Water Sector ◽  
Municipal Water ◽  
Technical Solutions ◽  
The Given ◽  
Supply Systems

System engineering laws of big cities’ centralized water supply functioning and development have been stated in a structural form. This enables to define strategy of scientific research and updating of enginnering infrastructures of the municipal water sector. The given approach is applicable for substantiation of priority directions in the process of development and adoption of technical solutions on providing environmental safety for drinking water supply systems.

scholarly journals Safety of Water Supply Systems and Wastewater Treatment of Industrial Enterprises

2016 ◽  
Vol 5 (5) ◽  
pp. 64-74
Author(s):  
Шилков ◽  
Vladimir SHilkov ◽  
Аникин ◽  
Yu. Anikin
Keyword(s):  
Wastewater Treatment ◽  
Water Treatment ◽  
Water Supply ◽  
Integrated Approach ◽  
Water Supply Systems ◽  
Critical Systems ◽  
Basic Principles ◽  
Strategic Risk ◽  
Industrial Enterprises ◽  
Supply Systems

In this article, the necessity of integrated approach to the analysis and solution of problems of safety of water supply and wastewater treatment are declared. The results of the study the main problems of the systems of production of water supply and wastewater treatment are described. Practical measures for solving problems are proposed. Pressing need of application of means of informatization, strategic risk analysis methods and innovative technologies of water treatment are declared. The basic principles of safe and effective critical systems of water supply and wastewater treatment in the sphere of production are proposed.

scholarly journals ABOUT FEATURES OF WATER CONSUMPTION CALCULATION WHEN DESIGNING WATER SUPPLY SYSTEMS OF HIGH-RISE BUILDINGS

2020 ◽  
Vol 10 (2) ◽  
pp. 29-35
Author(s):  
Sayriddin Sh. SAYRIDDINOV
Keyword(s):  
Water Supply ◽  
Water Consumption ◽  
Water Supply Systems ◽  
High Rise ◽  
Advantages And Disadvantages ◽  
Supply And Distribution ◽  
Effi Ciency ◽  
The Cost ◽  
Supply Systems ◽  
Research And Design

This article discusses the hydraulic and technological features of calculating water consumption when designing water supply systems for high-rise buildings in order to increase the effi ciency of water supply and distribution in a given projected object. The basic criteria for the operation of water supply systems for high-rise buildings in accordance with modern requirements of regulatory documents are given. The technological need is justifi ed and completed operational, technological and feasibility analysis of the applicability of methods determination of water consumption to improve the effi ciency of water supply systems of high-rise buildings. Advantages and disadvantages of methods for determining the cost of internal water supply performed by various research and design institutes are indicated.

scholarly journals Microgeração de energia com uso de bomba funcionando como turbina (BFT) em sistemas de abastecimento de água (SAA)

Revista DAE ◽  
2019 ◽  
Vol 221 (68) ◽  
pp. 53-59
Author(s):  
Silvia Fernanda Paffrath
Keyword(s):  
Water Supply ◽  
Energy Use ◽  
Excess Pressure ◽  
Water Supply Systems ◽  
Energy Costs ◽  
Dissipation Of Energy ◽  
Theoretical System ◽  
Pumping Stations ◽  
Favorable Conditions ◽  
Supply Systems

Resumo Cada vez mais têm sido estudadas formas de minimizar gastos com energia e/ou de obter formas alternativas de geração, principalmente pela diminuição de oferta hídrica em diversos locais. Nos sistemas de abastecimento de água, são altos os gastos com energia, principalmente nas estações elevatórias. Em sistemas que fazem a distribuição de água por gravidade, não é rara a utilização de válvulas redutoras de pressão em pontos especí- ficos em que é necessária essa redução para garantir condições favoráveis de transporte de água na tubulação. Nesse sentido, ocorre dissipação de energia que poderia ser aproveitada no próprio sistema. Tendo em vista esse aproveitamento energético, esse estudo tem como objetivo determinar de forma teórica a potência gerada por uma bomba funcionando como turbina em locais onde há excedente de pressão, tomando por base dados de um sistema teórico de abastecimento de água de município de pequeno porte. Os resultados mostram que a alternativa é tecnicamente viável, gerando 2,2 KW de potência e 16,4 MW/ano de energia, que poderia ser uti- lizada no próprio sistema, em pontos onde seria necessário bombeamento, seja na captação ou na própria rede de abastecimento, em transição de zonas baixas para altas. Palavras-chave: Eficiência energética. Bomba funcionando como turbina (BFT). Abstract It has increasingly been studied ways to minimize energy costs and to obtain alternative forms of generation, mainly by the reduction of water supply in various locations. In water supply systems, energy costs are high, especially in pumping stations. In systems that make the distribution of water using gravity, it is not uncommon to use pres- sure reducing valves at specific points at which this reduction is necessary to ensure favorable conditions of water transport in the pipe. In this sense, there is dissipation of energy that could be used in the system itself. In view of this energy use, this study aims to determine theoretically the power generated by a pump functioning as turbine in places where there is excess pressure, based on data from a theoretical system of a small town water supply. From the results, the alternative proved to be technically feasible, with power generated at 2.2 KW and energy at 16.4 MW/year, which could be used in the system itself, at points where pumping would be required, either on capture or in the supply network, in transition from low to high areas. Keywords: Energy efficiency. pump functioning as turbine.

scholarly journals Assessment of the Sverdlovsk Oblast Drinking Water Pollution with Heavy Metal

2020 ◽  
Author(s):  
Keyword(s):  
Water Pollution ◽  
Heavy Metals ◽  
Drinking Water ◽  
Water Supply ◽  
Water Samples ◽  
Water Supply Systems ◽  
Industrial Enterprises ◽  
Quality Of Water ◽  
Supply Systems

The paper presents the results of the determination of heavy metals in drinking water samples from centralized water supply systems and wells of individual water supply of the Sverdlovsk region. It was found that the content of copper ions in the samples does not exceed its maximum permissible concentration, and the content of lead and cadmium ions in most samples is higher than the permissible norms. It is established that water samples from Nizhny Tagil and Serov are more contaminated with cadmium. The causes of drinking water pollution are discussed. It was found that the pollution of water from the centralized water supply systems with heavy metals is mainly due to the non-compliance of the operated water pipes with sanitary and hygienic requirements. Groundwater pollution is caused by the infiltration of industrial effluents containing heavy metals from storage and sedimentation tanks through soil. It is shown that numerous industrial enterprises in the Sverdlovsk region aggravate the process of pollution of surface and groundwater with heavy metals. The unsatisfactory quality of water in terms of the content of heavy metals in Sverdlovsk region is revealed. The authors dwell on the need to continue research to determine the content of other heavy metals in water and expand the geography of sampling in the region in order to assess more accurately the quality of water.

Identification of opportunities to improve efficiency by water consumption assessment

2007 ◽  
Vol 7 (4) ◽  
pp. 57-63
Author(s):  
S.L. Diás ◽  
H. Lucas ◽  
M.do Céu Almeida ◽  
H. Alegre ◽  
M. Vriato ◽  
...  
Keyword(s):  
Water Supply ◽  
Water Consumption ◽  
Demand Management ◽  
Water Supply Systems ◽  
Management Options ◽  
Emergency Situations ◽  
Usage Patterns ◽  
Supply Systems ◽  
Water Uses

Characterization of water demand can be of large value for the management of water supply systems. Especially when water resources are limited, permanently or seasonally, the identification of the types of consumers and its characteristics are essential to identify opportunities to promote efficiency and demand management options. For each customer category, information to be obtained includes individual uses, typical daily usage patterns (average and dispersion), specific characteristics and magnitude. Knowledge and systematization of water uses also provides data to improve water balance and thus allows reducing uncertainty in losses estimation. In this paper, a study carried out in Algarve, a region where stress on water supply resources has been increasing, is presented aiming at better characterise water consumption in the region to improve response both to normal and in emergency situations.

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