scholarly journals Geostatistical Methods in Water Distribution Network Design - A Case Study

2019 ◽  
Vol 26 (1) ◽  
pp. 101-118
Author(s):  
Maciej Potyralla
Keyword(s):  
Water Supply ◽  
Water Demand ◽  
Water Distribution ◽  
Water Distribution Network ◽  
Water Supply Systems ◽  
Supply Network ◽  
Supply Networks ◽  
Water Supply Network ◽  
Geostatistical Methods ◽  
Water Supply Networks

Abstract Modeling of the loads of water supply networks and their subsequent forecasting is an element necessary for making optimum decisions in the process of planning the development and operation of the water supply networks. The results of this modeling are decisive for the selection of the diameters of the pipelines and their arrangement on the water demand area. This study presents the results of estimation of average values of loads for the selected investment variants. The aim of the article is to present the possibility of simulations and analyses of the geostatistical interpolation methods. Data input in the model regarded the fragment of the real water supply network administered by the Municipal Water and Sewerage Company in Warszawa. Results of the computer analyses for the presented investment variants were related to the operating data of the water supply network and the data on water demand for the years 2014-2017 and 2018-2025. The aim of this paper is to present the advantages of GIS for the water supply systems and to prove that using the appropriate IT system, with provision of proper data processing, may lead to decisions which are optimum in view of the established, often very complex criteria.

scholarly journals Simulation of water supply networks using modern means of information technology

2018 ◽  
Vol 44 ◽  
pp. 00076
Author(s):  
Jerzy Kotowski ◽  
Jacek Oko ◽  
Monika Żygadło
Keyword(s):  
Information Technology ◽  
Water Supply ◽  
Mathematical Models ◽  
Computer Technology ◽  
Technical Problem ◽  
Supply Network ◽  
Supply Networks ◽  
Water Supply Network ◽  
Water Supply Networks

We present in turn the development of computer technology from the beginning of its creation on our planet. Then we discuss the development of information technology at our university. At the end, we present a selected technical problem which is the task of simulation of the water supply network. We present mathematical models of these issues and algorithms for their solutions requiring the use of a computer.

A New Method to Estimate the Leakage Amount at the Water Supply Network Nodes in the Countryside Regions

2012 ◽  
Vol 170-173 ◽  
pp. 2386-2389 ◽  
Author(s):  
Yue Qiang ◽  
Zhe Chao Fan ◽  
Ming Jie Zhao ◽  
Li Li
Keyword(s):  
Water Supply ◽  
New Method ◽  
Supply Network ◽  
Supply Networks ◽  
Water Supply Network ◽  
Network Nodes ◽  
Leakage Model ◽  
Water Supply Networks ◽  
Relationship Of ◽  
Dem Model

In order to investigate the leakage amount in the water supply networks in the countryside regions, a new method combined with GIS and DEM to estimate the leakage amount at water supply network nodes has been put forward. It is proposed according to the Chinese node leakage model, and it takes advantage of the strong spatial annalistic function of the GIS. The emphasis is put on the study of the topology relationship of the water supply networks which are built based on the GIS network analysis. And DEM model is used to calculate the elevation at the network nodes. And then the leakage amount of the water supply network nodes is estimated. Finally, specific examples have been verified in order to illustrate that the GIS-based method to estimate leakage amount at the water supply network nodes is efficient.

Taking Fangcun District of Guangzhou as an Example to Discuss the New Joint Repair Technology of Water Distribution Network

2012 ◽  
Vol 226-228 ◽  
pp. 2328-2334
Author(s):  
Dan Gao ◽  
Zhi Hong Wang ◽  
Gang Ren ◽  
Zhi Hong Long ◽  
Yu Li Chen
Keyword(s):  
Water Supply ◽  
Water Distribution ◽  
Water Distribution Network ◽  
Supply Network ◽  
Trenchless Technology ◽  
Water Supply Network ◽  
Repair Technology ◽  
Joint Repair ◽  
Working Principle ◽  
Technology Strategies

This paper has discussed the working principle and characteristics of the new commonly used pipeline repair technology by introducing the currently commonly used pipeline repair technology. The new commonly used pipeline repair technology can be classified as two big kinds including one based on excavation and trenchless technology. When selecting the pipeline repair technology, we mainly considerate four factors: whether excavat pipeline , whether cut off the water and the time of cutting off water , the time of pipeline repair , the materials of pipeline repair, and so on . The actual situation and network features of water supply network in Fangcun district of Guangzhou are analysed , the joint repair technology strategies of water supply network which applies to Fangcun district are discussed by synthesizing the applicability, merit and demerit of new pipeline repair technology, and use these as technical reference and guidance for other similar areas .

scholarly journals Monitoring of water distribution system effectiveness using fractal geometry

2015 ◽  
Vol 63 (1) ◽  
pp. 155-161 ◽  
Author(s):  
D. Kowalski ◽  
B. Kowalska ◽  
M. Kwietniewski
Keyword(s):  
Water Supply ◽  
Distribution System ◽  
Water Distribution ◽  
Target Location ◽  
Circulatory System ◽  
Supply Network ◽  
Supply Networks ◽  
Water Supply Network ◽  
Fractal Properties ◽  
Preparatory Stage

Abstract The paper discusses issues related to monitoring quality and pressure of water transmitted using water supply networks. Special attention was paid to methods of determining location of measuring points, which to a large extent influence effectiveness of the monitoring system. The purpose of the paper is to present authors’ own method of determining location of points of measuring quality and pressure of transmitted water. The basis for considerations was a real water supply network in a city of about 10.000 residents. The presented method is based on existence of self-similarity properties of the set of fractals formed by the geometrical structure of the water supply network. It is a rank-ordered method involving 3 basic stages - reduction of the number of potential measuring points, providing more details of a target location and checking usefulness of selected points for monitoring purposes. At the preparatory stage, existence of fractal properties of the examined network structure is required to be demonstrated as well as the construction of its numerical model. The ranking is based on two indicators referring by analogy to human circulatory system monitoring and elements of the risk theory. This theory was also used to evaluate usefulness of selected measuring points for monitoring purposes.

scholarly journals Design and Implementation of a Pressure Monitoring System Based on IoT for Water Supply Networks

Sensors ◽  
2020 ◽  
Vol 20 (15) ◽  
pp. 4247 ◽  
Author(s):  
José Pérez-Padillo ◽  
Jorge García Morillo ◽  
José Ramirez-Faz ◽  
Manuel Torres Roldán ◽  
Pilar Montesinos
Keyword(s):  
Data Analysis ◽  
Water Supply ◽  
Real Time ◽  
Monitoring System ◽  
Water Distribution ◽  
Water Supply Systems ◽  
Pressure Monitoring ◽  
Supply Networks ◽  
Use Of Resources ◽  
Water Supply Networks

Increasing the efficiency of water supply networks is essential in arid and semi-arid regions to ensure the supply of drinking water to the inhabitants. The cost of renovating these systems is high. However, customized management models can facilitate the maintenance and rehabilitation of hydraulic infrastructures by optimizing the use of resources. The implementation of current Internet of Things (IoT) monitoring systems allows decisions to be based on objective data. In water supply systems, IoT helps to monitor the key elements to improve system efficiency. To implement IoT in a water distribution system requires sensors that are suitable for measuring the main hydraulic variables, a communication system that is adaptable to the water service companies and a friendly system for data analysis and visualization. A smart pressure monitoring and alert system was developed using low-cost hardware and open-source software. An Arduino family microcontroller transfers pressure gauge signals using Sigfox communication, a low-power wide-area network (LPWAN). The IoT ThingSpeak platform is used for data analysis and visualization. Additionally, the system can send alarms via SMS/email in real time using the If This, Then That (IFTTT) web service when anomalous pressure data are detected. The pressure monitoring system was successfully implemented in a real water distribution network in Spain. It was able to detect both breakdowns and leaks in real time.

scholarly journals Converting Traditional Water Supply Network Into 24x7, using Water GEMS to Optimize Design

2021 ◽  
Vol 10 (1) ◽  
pp. 280-284
Author(s):  
Mukund M. Pawar ◽  
Nitin P. Sonaje
Keyword(s):  
Water Supply ◽  
Water Distribution ◽  
Supply System ◽  
Water Supply System ◽  
Water Supply Systems ◽  
Optimization Approach ◽  
Supply Network ◽  
Pipe Network ◽  
Economic Point ◽  
Water Supply Network

Water is all-natural driving force. Entire world struggles to preserve it. Given that India is among the top 12 water poor countries, water wastage is a critical issue for us. India's population is increasing day by day and thus the demand for water is continuously increasing. This growing demand can be met through an efficient water distribution network which can be designed using modern hydraulic software such as Water GEMS. Using the Water GEMS software Pandharpur city is selected to convert existing water supply system into 24 * 7 continuous water supply systems. The largest investment is the pipes used in the water distribution system. The design, modeling and optimization of pipes in water supply system from an economic point of view are very important. Therefore optimal pipe network design for converting existing network into 24x7 water supply system networks is carried out in this paper to reduce the cost using WaterGEM software. Study of the existing water supply network system for one zone (Ambika Nagar Zone10) is initially carried out from the Pandharpur area. The effect on demand, head loss gradient, and pressure development of the forecasted population is studied. In addition, cost optimization of the pipe network for the proposed 24x7 water supply system is carried out using a genetic algorithms Darwin optimization approach.

scholarly journals Quality changes of drinking water in the water supply network (case study from Lithuania)

2009 ◽  
Vol 41 (2) ◽  
pp. 109-118
Author(s):  
Marina Valentukeviciene ◽  
Aukse Amosenkiene ◽  
Regimantas Dauknys
Keyword(s):  
Drinking Water ◽  
Water Supply ◽  
Water Samples ◽  
Water Distribution ◽  
Quality Changes ◽  
Supply Network ◽  
Water Supply Network ◽  
Well Field ◽  
Drinking Water Distribution

Quality changes of drinking water in the water supply network (case study from Lithuania) The purpose of this research was to examine water quality changes by distributing in to the water supply network. Water samples were collected from Varena town (Lithuania) drinking water distribution system fed by groundwater from well field. Parameters related to undesirable increasing of nitrites and nitrates concentrations have been measured considering these samples: pH, conductivity, concentration of total iron, manganese, ammonium, nitrates and nitrites. Results showed that groundwater from well field were extremely susceptible to favor bacterial growth in the pipelines. The occurrence of nitrites and nitrates in drinking water samples correlated positively with the lengths of old iron pipelines and negatively with the content of newly laid pipelines. The obtained results also showed that the potential nitrates increasing induced by the distribution of treated water could be reduced if: nitrates levels were below detection limits at the outlet of the water treatment plant; biological ammonium removal treatment implementation should reduce the levels of the nitrates and nitrites of the treated supplied water. Although the nitrates concentration increase in drinking water distribution systems, the issues with nitrites accumulation are rare in Lithuania. However, such processes still need to be proved in more extensive investigation, but these research results could be applied as a basic scenario.

scholarly journals Certainty Level of Water Delivery of the Required Quality by Water Supply Networks

2019 ◽  
Vol 16 (10) ◽  
pp. 1860 ◽  
Author(s):  
Marian Kwietniewski ◽  
Katarzyna Miszta-Kruk ◽  
Kaja Niewitecka ◽  
Mirosław Sudoł ◽  
Krzysztof Gaska
Keyword(s):  
Water Quality ◽  
Water Supply ◽  
Quality Indicators ◽  
Distribution System ◽  
Water Distribution ◽  
Water Delivery ◽  
Supply Networks ◽  
Water Quality Indicators ◽  
Water Supply Networks ◽  
Required Quality

The security of water delivery of the required quality by water supply networks is identified with the concept of reliability. Therefore, a method of reliability evaluation of water distribution of the required quality was developed. The method is based on the probabilistic character of secondary water contamination in the water supply network. Data for the method are taken from monitoring of the water distribution system. The method takes into consideration the number and locations of individual measurement points and the results of the tests of water quality indicators at these points. The sets of measurement points and water quality indicators constitute a matrix research (observation) field in the model. The proposed method was implemented to assess the reliability of a water distribution process with respect to water with the required microbiological quality indicators in a real distribution system.

Diversification of Water Network Tanks Volume

2015 ◽  
Vol 811 ◽  
pp. 395-401
Author(s):  
Janusz Rak ◽  
Katarzyna Pietrucha-Urbanik
Keyword(s):  
Water Supply ◽  
Safety Management ◽  
Objective Assessment ◽  
Research Direction ◽  
Water Volume ◽  
Water Supply Systems ◽  
Supply Network ◽  
Positive Role ◽  
Water Supply Network ◽  
Crisis Situations

Diversification of the water volume has a particularly positive role in crisis situations related to water supply in urban and industrial areas. The function of water supply tanks is to compensate water supply for a settlement unit in a daily cycle, stabilizing the pressure in the supply area. In crisis situations, tanks capacity is used for the purposes of fire. A new function is the use of stored water as an emergency source of water supply during failure. Water supply network tanks act as reserves for various types of undesirable events. The previous methods of analysis and risk assessment in water supply systems did not include directly the assessment of volume diversification in a given number of water supply network tanks. For this purpose the Shannon-Wiener index, as well as the author’s index, based on the polynomial function, were proposed. These indices enable to perform an objective assessment of the water volume diversification degree ​​​and comparing the various subsystems of collecting water on the example of seven water supply system in the south of Poland. Perspectives for the development of research direction, that is safety management, is a challenge for both theoreticians and practitioners working in the water supply companies.

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