Development and Field Validation of a Burst Localization Methodology
Publication: Journal of Water Resources Planning and Management
Volume 139, Issue 6
Abstract
Reducing water loss through bursts is a major challenge throughout the developed and developing world. Currently burst lifetimes are often long because awareness and location of them is time- and labor-intensive. Advances that can reduce these periods will lead to improved leakage performance, customer service, and reduce resource wastage. In water-distribution systems the sensitivity of a pressure instrument to change, including burst events, is greatly influenced by its own location and that of the event within the network. A method is described here that utilizes hydraulic-model simulations to determine the sensitivity of potential pressure-instrument locations by sequentially applying leaks to all potential burst locations. The simulation results are used to populate a Jacobian matrix, quantifying the different sensitivities. This matrix may then be searched to identify different instrument locations to achieve required goals: maximising overall sensitivity to all potential events or selective sensitivity to events in different network areas. It is shown here that by searching this matrix to optimize such selective sensitivity, while minimising instrument numbers, it is possible to provide useful burst-localization information. Results are presented from field studies that demonstrate the practical application of the method, showing that current standard network models can provide sufficiently accurate quantification of differential sensitivities and that, once combined with event-detection techniques for data analysis, events can effectively be localized using a small number of instruments.
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Acknowledgments
This work was supported by the EPSRC (grant EP/E003192/1) and industrial collaborators. The authors would like to thank Yorkshire Water Services for their assistance with models and data. In addition, the authors wish to acknowledge 7Technologies for provision and support of the hydraulic modeling software. Particular thanks are due to Mr. R. Patel, Mr. L. Soady, and Dr. J. Machell for their help and support in conducting field work.
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Information & Authors
Information
Published In
Journal of Water Resources Planning and Management
Volume 139 • Issue 6 • November 2013
Pages: 604 - 613
Copyright
© 2013 American Society of Civil Engineers.
History
Received: Dec 9, 2011
Accepted: May 16, 2012
Published online: May 21, 2012
Discussion open until: Oct 21, 2012
Published in print: Nov 1, 2013
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