scholarly journals Methodology to Detect and Isolate Water Losses in Water Hydraulic Networks: Application to Barcelona Water Network

2012 ◽  
Vol 45 (20) ◽  
pp. 922-927
Author(s):  
Joseba Quevedo ◽  
Ramon Pérez ◽  
Josep Pascual ◽  
Vicenç Puig ◽  
Gabriela Cembrano ◽  
...  
Keyword(s):  
Water Network ◽  
Water Losses ◽  
Hydraulic Networks ◽  
Water Hydraulic

An Advanced Software to Manage a Smart Water Network with Innovative Metrics and Tools Based on Social Network Theory

10.29007/gvnz ◽  
2018 ◽  
Author(s):  
Armando Di Nardo ◽  
Michele Di Natale ◽  
Anna Di Mauro ◽  
Eva Martínez Díaz ◽  
Jose Antonio Blázquez Garcia ◽  
...  
Keyword(s):  
Social Network ◽  
Network Theory ◽  
Water Distribution ◽  
Distribution Networks ◽  
Social Network Theory ◽  
Geographical Information ◽  
Water Network ◽  
Time Data ◽  
Water Losses ◽  
Operational Conditions

The recent development and applications of social network theory in many fields of engineering (electricity, gas, transport, water, etc.) allows both the understanding of networks and to improve their management. Social network theory coupled to the availability of real time data and big data analysis techniques can change drastically the traditional approaches to manage civil networks. Recently, some authors are working to apply this novel approach, based on social network theory, on the water distribution networks using: a) graph partitioning algorithms to define optimal district meter areas both for water losses identification and for water network protection, b) innovative topological, energy and hydraulic indices to analyze performance; and c) GIS (Geographical Information System) to provide a more effective display of results and to improve network behavior in specific operational conditions. In this paper, a novel release 3.5 of SWANP software, that implements all these features, was tested on a real large water network in Alcalá de Henares, Spain.

scholarly journals Energy and Cost Savings through Pumping Stations Rehabilitation. Case Study in Bucharest

Proceedings ◽  
2018 ◽  
Vol 2 (11) ◽  
pp. 593
Author(s):  
Sorin Perju ◽  
Alexandru Aldea
Keyword(s):  
Water Distribution ◽  
Energy Savings ◽  
Distribution Network ◽  
Cost Savings ◽  
Water Distribution Network ◽  
Water Network ◽  
Water Losses ◽  
Pumping Stations ◽  
Technical Solutions

This paper presents the results recorded by upgrading and rehabilitating the pumping stations for an urban water network with a primary goal of diminishing the operation and maintenance costs and a secondary goal of reducing the water losses in the water distribution network. The adopted technical solutions within the structural and functional modifications of the pumping stations have led to both the improvement of hydraulic parameters of the pumping stations and also the improvement of registered energy consumption. The undertaken modifications and transformations within the pumping stations led to significant energy savings and at the same time to important water losses reductions within the distribution network.

scholarly journals Pressure Management of Water Distribution Networks Based on Minimum Ground Elevation Difference of DMAs

2020 ◽  
Vol 2 (1) ◽  
pp. 47
Author(s):  
Giovanni Francesco Santonastaso ◽  
Armando Di Nardo ◽  
Michele Di Natale ◽  
Velitchko Tzatchkov
Keyword(s):  
Water Distribution ◽  
Water Distribution Network ◽  
Distribution Networks ◽  
Water Distribution Networks ◽  
Network Partitioning ◽  
Pressure Management ◽  
Water Network ◽  
Water Losses ◽  
Flow Meters ◽  
Elevation Difference

Water network partitioning (WNP) represents an efficient strategy to improve management of water distribution networks, reduce water losses and monitor water quality. It consists in physically dividing of a water distribution network (WDN) into districted metered areas (DMAs) through the placement of flow meters and isolation valves on boundary pipes between DMAs. In this paper, a novel methodology for designing DMAs is proposed that provides districts with quite similar node elevations and minimizes the number of boundary pipes in order to simplify pressure management and reduce the number of devices to place into the network.

Accuracy in water losses estimation in the distribution network - the Paris case

2004 ◽  
Vol 4 (3) ◽  
pp. 123-132 ◽  
Author(s):  
B. Nguyen
Keyword(s):  
Drinking Water ◽  
Distribution Network ◽  
Water System ◽  
Supply System ◽  
The State ◽  
Water Network ◽  
Water Losses ◽  
One Year ◽  
Water Metering

The yield of a distribution network represents one of the indicators most commonly used by water distributors to account for the state of the volumes of losses over a given period or to measure the evolution of these losses from one year to the next, generally speaking. However, contrary to what might be thought, complex situations and very differing interpretations are to be found on the back of the result of the calculation of the volumes of water lost in the distribution network. A study of drinking water network yield was carried out in Paris in 2001 so as to get a better grasp of the developments recorded since 1987. The consequences of the changes that have taken place during this period have each been measured: alterations to the organisation of the water system, developments affecting the structure of the supply system, technical improvements in the wholesale water metering systems and overall reduction in volumes consumed.

scholarly journals Research Methodology of Water Network Failure in Terms of Reneval / Metodologia Badania Awaryjności Sieci Wodociągowej w Aspekcie Jej Odnowy

2015 ◽  
Vol 33 (1) ◽  
pp. 233-242 ◽  
Author(s):  
Katarzyna Pietrucha-Urbanik ◽  
Barbara Tchórzewska-Cieślak
Keyword(s):  
Water Supply ◽  
Main Element ◽  
Water Services ◽  
Supply Network ◽  
Water Network ◽  
Water Losses ◽  
Water Supply Network ◽  
Network Failure ◽  
Strategic Plans ◽  
Quality Water

Abstract The important and crucial issue concerning water supply functioning in terms of conducting failure analysis were discussed. In the work failure indicators, water losses and availability of water services, that define standards of quality water services and their values were determined based on data from exploitation. In order to understand the current situation of water supply infrastructure it is necessary to perform periodic analyzes of water supply network failure, which was proposed in this paper. A detailed analysis of the failure and the water loss of the water supply network should be the main element of the urban management water supply network, particularly in the strategic plans for its modernization.

scholarly journals Review of Water Network Analysis and Validation of SCALER Hydraulic Simulator

2021 ◽  
Vol 3 (01) ◽  
pp. 01-11
Author(s):  
Henrique Da Silva Pizzo ◽  
João Paulo De Carvalho Ignácio ◽  
Marcus Vinicius Do Nascimento
Keyword(s):  
Network Analysis ◽  
Water Distribution ◽  
Distribution Networks ◽  
Hydraulic Modeling ◽  
Real System ◽  
Water Network ◽  
Hydraulic Networks ◽  
Hydraulic Simulator ◽  
Validation Stage ◽  
Number Of Branches

The article intends to present the validation stage of a software to model and simulate hydraulic networks for water distribution, the SCALER, through its application to a real system, with many branches, with a model previously developed and verified using the EPANET software. SCALER was developed in 2020 and 2021 and, until then, had only been applied to networks with a relatively small number of branches. After discussing topics related to hydraulic modeling of distribution networks, techniques and applications, a brief review of the fundamentals of SCALER is carried out, passing on to its application to the case at hand, which is the Vila Joaniza community, in the municipality of Rio de Janeiro. Data from image, scheme and table are used to assist in the description of the local situation and respective distribution network, with the objective of assessing whether the nodal pressures obtained by SCALER are sufficiently similar to those obtained by EPANET, in order to ensure the proper functioning of the software. After this step, and the calculations have been made by the program, an operation screen, the generated graph of the local situation and a table with the comparison of absolute and percentage deviations between the nodal pressures resulting from the SCALER and those obtained with the EPANET are inserted, confirming that the deviation values are quite small, which validates SCALER as a software also applicable to networks with many branches.

scholarly journals Determining the best strategy to reduce losses in Banias water network, based on the Analytical Hierarchy Process AHP: تحديد الاستراتيجية الأفضل لتخفيف الفواقد في شبكة مياه مدينة بانياس بالاعتماد على طريقة التحليل الهرمي Analytical Hierarchy Process (AHP)

2021 ◽  
Vol 5 (5) ◽  
pp. 91-78
Author(s):  
Jamelah Mouhammad Salman, Abbas Abdulrahman Jamelah Mouhammad Salman, Abbas Abdulrahman
Keyword(s):  
Analytical Hierarchy Process ◽  
Water Distribution ◽  
Water Distribution Network ◽  
Final Decision ◽  
Water Network ◽  
Decision Matrix ◽  
Water Losses ◽  
Expert Choice ◽  
City Water ◽  
Hierarchy Process

The study aims to choose the best strategy for reducing Water losses in Banias City Water Distribution network, that reaches a large percentage about 65%, based on the Analytical Hierarchy Process (AHP). The strategies (alternatives), the main and secondary criteria necessary to reach the construction of the decision matrix and the development of the final strategies for the work of the Establishment in accordance with it, based on the opinions of experts in the Banias Water Establishment, in addition to references and previous studies in the field of research. The necessary questionnaire was prepared and then distributed to a group of experts (30 experts) of engineers and technicians working in Banias Water Establishment, and thus conducting comparison process between the main criteria, the sub- criteria, and the alternatives for the sub- criteria. The Expert Choice Software Which is based on AHP method, is used, and It automatically performs mathematical processes and calculates final relative weights to obtain the final decision matrix. The results showed that the strategy of dividing the network into district metered areas ranked first, with the highest rating of 27.8%, followed by the strategy of control and pressure management with 13.6%, while the strategy of replacing meters came last with 3.5%.

Methodology for determining water losses from irrigation canals

2020 ◽  
pp. 16-18
Author(s):  
Elena Makarycheva
Keyword(s):  
Filtration Rate ◽  
Darcy Law ◽  
Filtration Flow ◽  
Irrigation Canals ◽  
Power Functions ◽  
Two Phase ◽  
Water Losses ◽  
Irrigation Channels ◽  
Unsteady Filtration ◽  
S Curve

The aim of the article is to develop a method for calculating water losses from irrigation channels in determining the permeability of rock in the zone of filtration flow on the basis of the law of infiltration A.N. Kostyakov using the results of studies of free filtration from pits and foundation pits in loess loams. Pressure movement of water in irrigation canals is subject to the laws of two-phase flow, in which – in contrast to the Darcy law for the zone of saturation plays an important role, the volume and its change in time. The filtration rate (VF) increases with increasing rock moisture (θ) along the S-curve, while the pressure gradient (I = dh/dz) decreases. The dependences of these parameters on the pressure are represented by power functions, and their product CDP = VFI does not change in time and can serve as a characteristic of the filtration flow under the channel. When installing paired piezometers near the water chore line in the channel and determining the graph I(t) by the value of the twophase flow constant CDP, it is possible to calculate the filtration rate at a number of times and the water losses during unsteady filtration. Water losses from the channels at equilibrium humidity increases with increasing head according to the formula A.N. Kostyakova, in which the water permeability of rocks is characterized by a steady filtration rate at a head of 1.0 m, and the gradient is the function of pressure. The application of the proposed method of calculating losses in the design of irrigation systems will increase the reliability of the justification of the volume of anti-filtration measures and the forecast of the groundwater level.

Sign in / Sign up

Export Citation Format

Share Document