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Water 2019, 11(2), 278; https://doi.org/10.3390/w11020278

Optimizing the Formation of DMAs in a Water Distribution Network through Advanced Modelling

1
Department of Civil Engineering, University of Thessaly, 38334 Volos, Greece
2
Department of Electrical and Computer Engineering, University of Thessaly, 38221 Volos, Greece, [email protected]
*
Author to whom correspondence should be addressed.
Received: 25 October 2018 / Revised: 18 December 2018 / Accepted: 31 January 2019 / Published: 6 February 2019
(This article belongs to the Special Issue Insights on the Water–Energy–Food Nexus)
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Abstract

Water pressure management in a water distribution network (WDN) is a key component applied to achieve desirable water quality as well as a trouble-free operation of the network. This paper presents a hybrid, two-stage approach, to provide optimal separation of a WDN into District Metered Areas (DMAs), improving both water age and pressure. The first stage aims to divide the WDN into smaller areas via the Geometric Partitioning method, which is based on Recursive Coordinate Bisection (RCB). Subsequently, the Student’s t-mixture model (SMM) is applied to each area, providing an optimal placement of isolation valves and separating the network in DMAs. The model is evaluated on a realistic network generated through Watergems and is compared against one variation of it implemented, including the Gaussian Mixture Model (GMM) as well as the Genetic Algorithm (GA) approach, obtaining impressive performance. The implementation of both stages was deployed in a MATLAB environment through the Epanet toolkit. The proposed system is very promising, especially for large size WDNs due to the decreased running time and noteworthy reduction of pressure and water age. View Full-Text
Keywords: District Metered Areas; Student’s t-distribution; Gaussian Mixture Modelling; Recursive Coordinate Bisection; water age; water pressure District Metered Areas; Student’s t-distribution; Gaussian Mixture Modelling; Recursive Coordinate Bisection; water age; water pressure
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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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Chatzivasili, S.; Papadimitriou, K.; Kanakoudis, V. Optimizing the Formation of DMAs in a Water Distribution Network through Advanced Modelling. Water 2019, 11, 278.

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