scholarly journals The Method of Identification the Failure Risk on Water Supply Networks

2016 ◽  
Vol 37 (1) ◽  
pp. 73-94 ◽  
Author(s):  
Barbara Tchórzewska-Cieślak ◽  
Izabela Piegdoń
Keyword(s):  
Water Supply ◽  
Supply System ◽  
Separate Analysis ◽  
Water Network ◽  
Supply Networks ◽  
Risk Levels ◽  
Water Pipes ◽  
Water Supply Networks ◽  
Application Methods ◽  
Operational Data

Abstract Daily exploitation of the water network, collecting of data concerning the failure of water pipes and knowledge of the repair team are the basis of the data used in the process of effectively removing and identifying failures. The paper proposes a methodology to identify the risk of failure of the water supply system that uses risk indexes according to the proposed three-stage scale of risk levels. An example of application methods for the actual operational data broken down by analysis and risk assessment for bus cables and a separate analysis for the distribution network.

Evaluation of an intrusive technology to diagnose buried pipelines

2014 ◽  
Vol 14 (5) ◽  
pp. 931-937 ◽  
Author(s):  
B. Bouttier ◽  
Y. Gourbeyre ◽  
M. Hassine ◽  
J. C. Potier ◽  
P. Bréant
Keyword(s):  
Cast Iron ◽  
Water Supply ◽  
Probability Of Detection ◽  
Real Problem ◽  
Buried Pipelines ◽  
Buried Pipes ◽  
Supply Networks ◽  
Water Pipes ◽  
Water Supply Networks ◽  
Non Destructive

Ageing of water supply networks is a real problem which leads to leaks and bursts. A great challenge is to discover the state of degradation of the buried pipes. This paper describes the knowledge of Veolia Water – SADE of a non-destructive technology to inspect cast iron water pipes and the methodology developed to define its performance in terms of probability of detection of defects.

scholarly journals Automatic Leak Detection in Buried Plastic Pipes of Water Supply Networks by Means of Vibration Measurements

2015 ◽  
Vol 2015 ◽  
pp. 1-13 ◽  
Author(s):  
Alberto Martini ◽  
Marco Troncossi ◽  
Alessandro Rivola
Keyword(s):  
Water Supply ◽  
Leak Detection ◽  
Distribution Networks ◽  
Vibration Monitoring ◽  
Supply Networks ◽  
Water Pipes ◽  
Water Supply Networks ◽  
Experimental Campaign ◽  
Acceleration Signals

The implementation of strategies for controlling water leaks is essential in order to reduce losses affecting distribution networks of drinking water. This paper focuses on leak detection by using vibration monitoring techniques. The long-term goal is the development of a system for automatic early detection of burst leaks in service pipes. An experimental campaign was started to measure vibrations transmitted along water pipes by real burst leaks occurring in actual water supply networks. The first experimental data were used for assessing the leak detection performance of a prototypal algorithm based on the calculation of the standard deviation of acceleration signals. The experimental campaign is here described and discussed. The proposed algorithm, enhanced by means of proper signal filtering techniques, was successfully tested on all monitored leaks, thus proving effective for leak detection purpose.

scholarly journals Study on the Mechanical Responses of Plastic Pipes Made of High Density Polyethylene (HDPE) in Water Supply Network

2020 ◽  
Vol 10 (5) ◽  
pp. 1658
Author(s):  
Sorin Vlase ◽  
Marin Marin ◽  
Maria Luminița Scutaru ◽  
Dumitru Daniel Scărlătescu ◽  
Carol Csatlos
Keyword(s):  
Water Supply ◽  
Mechanical Behavior ◽  
High Density Polyethylene ◽  
Classical Model ◽  
High Density ◽  
Water Network ◽  
Supply Networks ◽  
Water Supply Networks ◽  
Materials Used ◽  
Cracking Process

This paper studies the mechanical behavior of high-density polyethylene (HDPE), from which the pipes used for water transport in water supply networks are manufactured. The study was generated by the practical problem of replacing and modernizing a water network of a city with 300,000 inhabitants. Of the numerous problems that have arisen and been solved by the group of researchers, only those referring to the mechanical behavior of the materials used for pipes are presented. HDPE, which is a thermoplastic material, is suitable for manufacturing the pipes used in water supply networks, having many advantages. Data on the mechanical properties of the material of which the pipe and elbow are made is obtained experimentally. The work involved the main steps required to design a water network, but the subject is not exhausted. The stresses in the polyethylene pipe are determined in two cases: buried in the ground and supported in a concrete massif. Thus, by calculation, the advantage offered by the second solution is justified. The crack of the pipes manufactured from HDPE is studied, taking into account the classical model used in the cracking process. A simulation of pipes and elbows cracking was made. The results obtained via MEF are useful for the users of the networks.

scholarly journals A Case Study in View of Developing Predictive Models for Water Supply System Management

Energies ◽  
2021 ◽  
Vol 14 (11) ◽  
pp. 3305
Author(s):  
Katarzyna Pietrucha-Urbanik ◽  
Barbara Tchórzewska-Cieślak ◽  
Mohamed Eid
Keyword(s):  
Water Supply ◽  
Predictive Models ◽  
Failure Modes ◽  
Supply System ◽  
Water Supply System ◽  
System Management ◽  
System A ◽  
Operational Failure ◽  
Operational Data

Initiated by a case study to assess the effectiveness of the modernisation actions undertaken in a water supply system, some R&D activities were conducted to construct a global predictive model, based on the available operational failure and recovery data. The available operational data, regarding the water supply system, are the pipes’ diameter, failure modes, materials, functional conditions, seasonality, and the number of failures and time-to-recover intervals. The operational data are provided by the water company responsible of the supply system. A predictive global model is proposed based on the output of the operational data statistical assessment. It should assess the expected effectiveness of decisions taken in support of the modernisation and the extension plan.

scholarly journals Vulnerability based management of water resources systems

2004 ◽  
Vol 6 (2) ◽  
pp. 133-156 ◽  
Author(s):  
V. K. Kanakoudis
Keyword(s):  
Water Supply ◽  
Preventive Maintenance ◽  
Water System ◽  
Supply System ◽  
Water Supply System ◽  
Maintenance Policy ◽  
Supply Networks ◽  
Water Resources Systems ◽  
Maintenance Schedule ◽  
Preventive Maintenance Policy

Must the water networks be fail-proof or must they remain safe during a failure? What must water system managers try to achieve? The present paper introduces a methodology for the hierarchical analysis (in time and space) of the preventive maintenance policy of water supply networks, using water supply system performance indices. This is being accomplished through a technical–economic analysis that takes into account all kinds of costs referring to the repair or replacement of trouble-causing parts of the water supply network. The optimal preventive maintenance schedule suggested by the methodology is compared with the empirically based maintenance policy applied to the Athens water supply system.

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