Studies and Research on Pipe Networks Water Losses

  • Ştefania CHIRICA Technical University “Gheorghe Asachi” of Iasi
  • Mihail LUCA Technical University “Gheorghe Asachi” of Iasi
Keywords: water scarcity, physical and apparent water losses, non-revenue water, pipe degradation

Abstract

The issue of water losses in pipe networks (transmission mains, conveyance and distribution pipelines) is one of the major problems encountered in water supply systems management. The losses have reached very high values, in some cases up to 60% of the water volumes entering the networks, and therefore they require urgent measures to reduce them. In Romania, the average non-revenue water percentage amounts to 48.3%, ranging from minimum values of 22% and maximum values of about 68%. The significance of addressing this issue properly is reflected in the concern of national and international bodies, such as ARA (Romanian Water Association) and IWA (International Water Association), which analyse the systems’ status and establish appropriate directions of action to be followed. The powerful development of industry and intensive agriculture in the last decades, in conjunction with global warming, has had a major impact on water resources. In the international context of quantitative and qualitative water sources reduction, adequate water loss management must become one of the water - sewerage agencies’ top priority. Solving this issue requires a long-term approach, which involves rehabilitation and modernization measures, appropriate metering for the supply system’s conveying water flows, implementation of hydraulic modeling software and leakage detection equipment. Water losses can be found under commercial and physical aspects. Amongst these, the physical ones have the highest share, as they affect all the water supply system components: transmission mains and distribution networks, storage tanks etc. Water loss management must contribute to the efficient resource usage through prevention and intervention measures, adjusted to the particularities of the situation being addressed.

Creative Commons License

References

[1]. Cheung P. B., Girol G. V., Abe N., Propato M., Night flow analysis and modeling for leakage estimation in a water distribution system, Integrating Water Systems (CCWI 2010), At 2010 Taylor & Francis Group, London, ISBN 978-0-415-54851-9, p. 509-513, 2010.
[2]. Fantozzi M., Lambert A. O., Residential Night Consumption – Assessment, Choice of Scaling Units and Calculation of Variability, IWA Water Loss Congress, Manila, Philippines, February 2012.
[3]. Jaber M. A. Alkasseh, Mohd Nordin Adlan, Ismail Abustan, Hamidi Abdul Aziz, Abu Bakar, Mohamad Hanif, Applying Minimum Night Flow to Estimate Water Loss Using Statistical Modeling: A Case Study in Kinta Valley, Malaysia, Water Resources Management, vol. 27, issue 5, p. 1439-1455, March 2013.
[4]. Lambert A. O., Hirner W., Losses from Water Supply Systems: Standard Terminology and Recommended Performance Measures, International Water Association, 2000.
[5]. Luca M., Alexandrescu S. A., Modern techniques for measuring the flow rate through water conveyance pipes, Bulet. Instit. Politehnic din Iaşi, Secţiunea Hidrotehnică, Tom LVI (LX), Fasc. 4, p. 31-38, ISSN: 1224-3892, 2010.
[6]. Thornton J., Lambert A. O., Progress in practical prediction of pressure: leakage, pressure: burst frequency and pressure: consumption relationships, Proceedings of the IWA Specialised Conference “Leakage 2005”, Halifax, Nova Scotia, Canada, 2005.
[7]. Werner M., Maggs I., Petkovic M., Accurate measurement of minimum night flows for water loss analysis, 5 th Annual WIOA NSW Water Industry Engineers & Operators Conference Exhileracing Events Centre, Newcastle, p. 31-37, 29-31 March, 2011.
Published
2017-09-15
How to Cite
1.
CHIRICA Ştefania, LUCA M. Studies and Research on Pipe Networks Water Losses. The Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science [Internet]. 15Sep.2017 [cited 25May2024];40(3):11-7. Available from: https://www.gup.ugal.ro/ugaljournals/index.php/mms/article/view/1139
Section
Articles

Most read articles by the same author(s)

Obs.: This plugin requires at least one statistics/report plugin to be enabled. If your statistics plugins provide more than one metric then please also select a main metric on the admin's site settings page and/or on the journal manager's settings pages.