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Water 2015, 7(4), 1378-1401;

Locating Leaks with TrustRank Algorithm Support

Department of Civil Engineering, Polytechnic Institute of Coimbra, Coimbra Institute of Engineering, Rua Pedro Nunes, Quinta da Nora, Coimbra 3030-199, Portugal
MARE (Marine and Environmental Sciences Centre), Department of Civil Engineering, University of Coimbra, Rua Luís Reis Santos, Polo II da Universidade, Coimbra 3030-788, Portugal
These authors contributed equally to this work.
Author to whom correspondence should be addressed.
Academic Editor: Andreas Angelakis
Received: 24 December 2014 / Revised: 26 February 2015 / Accepted: 16 March 2015 / Published: 27 March 2015
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This paper presents a methodology to quantify and to locate leaks. The original contribution is the use of a tool based on the TrustRank algorithm for the selection of nodes for pressure monitoring. The results from these methodologies presented here are: (I) A sensitivity analysis of the number of pressure transducers on the quality of the final solution; (II) A reduction of the number of pipes to be inspected; and (III) A focus on the problematic pipes which allows a better office planning of the inspection works to perform atthe field. To obtain these results, a methodology for the identification of probable leaky pipes and an estimate of their leakage flows is also presented. The potential of the methodology is illustrated with several case studies, considering different levels of water losses and different sets of pressure monitoring nodes. The results are discussed and the solutions obtained show the benefits of the developed methodologies. View Full-Text
Keywords: water distribution networks; leak location; optimal pressure transducer placement; mathematical models water distribution networks; leak location; optimal pressure transducer placement; mathematical models

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Ribeiro, L.; Sousa, J.; Marques, A.S.; Simões, N.E. Locating Leaks with TrustRank Algorithm Support. Water 2015, 7, 1378-1401.

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