scholarly journals METHODOLOGY FOR EVALUATING WATER LOSSES / VANDENS NUOSTOLIŲ ĮVERTINIMO METODIKA

2013 ◽  
Vol 5 (4) ◽  
pp. 449-454 ◽  
Author(s):  
Mindaugas Rimeika ◽  
Anželika Jurkienė
Keyword(s):  
Water Supply ◽  
Water Consumption ◽  
Major Part ◽  
Water Supply Systems ◽  
Night Time ◽  
Water Losses ◽  
Sustainable Water Use ◽  
Lack Of Information ◽  
Single User ◽  
Supply Systems

A reduction in water losses is significant for improving the efficiency of water supply systems and sustainable water use. The major part of water supply companies does not have enough experience in reducing water losses; therefore, a lack of information about practically applied measures for reducing water losses can be noticed. The article presents a method for determining water losses implemented under real conditions. The conducted research defines minimum night-time water consumption for a single user, which is 0.9 L/h/user and presents a methodology for calculating unavoidable background and real water losses that may occur in the water supply network. The above described method for detecting water losses has been practically tested in several water supply systems in Lithuania. Article in Lithuanina. Santrauka Siekiant gerinti vandens tiekimo sistemų efektyvumą ir užtikrinti tvarų vandens vartojimą, labai svarbu yra mažinti vandens nuostolius. Dauguma vandens tiekimo įmonių dar neturi pakankamai praktikos efektyviai mažinti nuostolius, trūksta informacijos apie praktiškai pritaikytas vandens nuostolių mažinimo priemones. Pateikiamas realiomis sąlygomis išbandytas vandens nuostolių dydžio nustatymo metodas. Tyrimo metu nustatytas minimalus naktinis vienam abonentui tenkantis suvartojamo vandens kiekis (0,9 litrai/h/butui), pateikta foninių nuostolių vandentiekio tinkle skaičiavimo metodika ir realių vandens nuostolių apskaičiavimo būdas. Aprašytasis vandens nuostolių nustatymo metodas buvo praktiškai patikrintas keliuose šalies vandentiekiuose.

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 The management system of water supply in the cities of Donbass

2018 ◽  
Vol 245 ◽  
pp. 07005
Author(s):  
Viktor Maslak ◽  
Nadiya Nasonkina ◽  
Svetlana Antonenko ◽  
Marina Gutarova ◽  
Alyona Tryakina ◽  
...  
Keyword(s):  
Water Supply ◽  
Water Consumption ◽  
Management Strategy ◽  
Supply System ◽  
Water Supply Systems ◽  
Water Losses ◽  
Accuracy Class ◽  
Water Supply Management ◽  
Water Meters ◽  
Supply Systems

During more than twenty years, survey of water supply systems in the cities of Donbass was conducted. The aim of the study was to develop a strategy for managing this sector, which allows for precise monitoring of water consumption and reducing water loss. In the course of the research, water consumption metering was carried out using counters, the operation of the devices was assessed taking into account the accuracy class and installation features. It is established that the actual value of water consumption is below the standard. The water consumption decreases with an increase in the percentage of installation of water meters and with an increase in the number of tenants in an apartment. The need to bring the general house and intra-apartment meters to the same accuracy class and regulate the installation position of the water meter was identified. Based on the optimization of conditions, the program management of water supply systems by means of zoning territories and the installation of ’’clever’’ meters was proposed. Approbation of the water supply management strategy allowed within the project to reduce water losses by 20% and use the technological reserve for the modernization of the water supply system.

Reduction of Apparent Water Losses

2017 ◽  
Author(s):  
Mindaugas Rimeika ◽  
Ramunė Albrektienė
Keyword(s):  
Water Supply ◽  
Water Consumption ◽  
Water Loss ◽  
Water Volume ◽  
Water Supply Systems ◽  
Water Losses ◽  
Consumption Data ◽  
Average Water ◽  
Local Water ◽  
Supply Systems

The water loss levels are very different between European countries as water loss varies from 7% to 50%. According to data from the Lithuanian Water Supply Association, in 2015 about 124 mln. m³ of ground water was supplied to the network, but only 94 mln. m³ of it was sold, while the remaining share represented water losses – 30 mln. m³ per year. An average water loss level in Lithuania is 24%, varying from 52% to 17%. Local water utilities take a little care of apparent water losses. This article deals with an investigation of apparent losses in Alytus and other cities in Lithuania. The reduction of apparent water losses is quite a different field as it does not require large additional investments and can produce quick and efficient results. Article presents the results on the ways for reduction of apparent water losses in Lithuanian water supply systems. The aim of research is to show that apparent water losses consist of considerable share of water losses and to prove that inconsiderable efforts can significantly cut down water losses and improve the utilities’ financial situation. Article present findings of night water consumption, used for DMA allowed minimum water calculation. Analysing water consumption data in blockhouses the minimum night water volume was determined (0.9 l/h/flat).

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 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.

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.

scholarly journals ANALYSIS OF TECHNOLOGICAL SOLUTIONS OF WATER SUPPLY SYSTEMS OF SINGLE-INDUSTRY TOWNS OF THE REPUBLIC OF KARELIA

2018 ◽  
Vol 8 (4) ◽  
pp. 29-36
Author(s):  
Arkady N. KIM ◽  
Elena O. GRAFOVA ◽  
Yury P. EFTIFEEV
Keyword(s):  
Water Treatment ◽  
Water Supply ◽  
Water Consumption ◽  
Wash Water ◽  
Water Supply Systems ◽  
Water Treatment Plants ◽  
Single Industry ◽  
Reagent Treatment ◽  
The Republic ◽  
Supply Systems

On the example of single-industry towns of the Republic of Karelia the article shows the possibility of restoring the activities of enterprises depending on the state of engineering support of water supply systems. There was a decrease in water consumption, high wear of water treatment plants, the lack of reagent treatment of colored water and, as a result, ineffi cient operation of facilities. It is shown that the reconstruction is possible with the application of the investment program. Projects have been developed for the reconstruction of the technological scheme for purifying low-turbid, high-color water and creating a circulating system for cleaning the wash water of contact illuminators.

From energy balance to energy efficiency indicators including water losses

2013 ◽  
Vol 13 (4) ◽  
pp. 889-895 ◽  
Author(s):  
C. Lenzi ◽  
C. Bragalli ◽  
A. Bolognesi ◽  
S. Artina
Keyword(s):  
Energy Efficiency ◽  
Energy Balance ◽  
Water Supply ◽  
Distribution Systems ◽  
Water Distribution ◽  
Energy Content ◽  
Water Supply Systems ◽  
Water Losses ◽  
The Impact ◽  
Supply Systems

The collection and distribution of drinking water resources generally require large quantities of energy, that vary according to factors related to the characteristics of the served area, as well as to design and management choices. Energy intensity indicators (energy per unit of volume) are insufficient to assess the weight of different factors that affect the energy consumption and appear not suitable for the comparison of different water supply systems. The key step of this work is to define a methodology for assessing the energy efficiency of water supply systems. In particular, water losses in water distribution systems, generally assessed in relation to the quantity of high quality water dispersed in the environment, are herein considered in relation to their energy content. In addition to the evaluation of energy balance using the approach proposed by Enrique Cabrera et al. in ‘Energy audit of water networks’ (see J. Water Res. Plan. Manage.136 (6), 669–677) an overall efficiency indicator WSEE (Water Supply Energy Efficiency) is then proposed. Its decomposition finally leads to the definition of further indicators, which may help to assess how the structure of the network, leakage rate and/or pumps affect the energy efficiency of the water system. Such indicators can be used to compare different water supply systems and to identify the impact of individual interventions. The proposed energy analysis was applied to two case studies in Northern Italy.

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