Topological and Hydraulic Metrics-Based Search Space Reduction for Optimal Re-Sizing of Water Distribution Networks

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dc.cclicenceCC-BY-NC-NDen
dc.contributor.authorDiao, Kegong
dc.contributor.authorBerardi, Luigi
dc.contributor.authorLaucelli, Daniele B.
dc.contributor.authorUlanicki, Bogumil
dc.contributor.authorGiustolisi, Orazio
dc.date.acceptance2022-03-09
dc.date.accessioned2022-03-17T11:08:48Z
dc.date.available2022-03-17T11:08:48Z
dc.date.issued2022
dc.descriptionThe file attached to this record is the author's final peer reviewed version.en
dc.description.abstractPipe re-sizing of Water Distribution Networks (WDNs) aims at improving the service performance to the required level, while minimizing the cost of replacing pipes in the network. The main challenge comes from the identification of the most effective pipes to re-size from a large number of interacting components. Performing a global search over all pipes in large WDNs does not guarantee to obtain a feasible and efficient solution due to the enormous search space, even by employing advanced algorithms, e.g., evolutionary algorithms. This paper proposes a novel method to reduce the search space for optimal re-sizing based on topological metrics from Complex Network Theory and hydraulic metrics, while providing sub-optimal solutions comparable to the full search solutions, i.e., considering all pipes as candidates. The topological metrics are based on the edge-betweenness tailored for WDN analysis. Hydraulic metrics are unit headloss and flow rates of pipes computed based on simulation of the WDN in the current configuration. The optimal re-sizing plans obtained, particularly that using edge betweenness were tested on a real WDN. The results are comparable with the full search solutions but they are much more efficient to obtain and require replacing mostly contiguous pipes, i.e., easier for practical fieldwork.en
dc.funderNo external funderen
dc.identifier.citationDiao, K., Berardi, L., Laucelli, D.B., Ulanicki, B., Giustolisi, O. (2022) Topological and Hydraulic Metrics-Based Search Space Reduction for Optimal Re-Sizing of Water Distribution Networks. Journal of Hydroinformatics.en
dc.identifier.doihttps://doi.org/10.2166/hydro.2022.158
dc.identifier.issn1464-7141
dc.identifier.urihttps://hdl.handle.net/2086/21758
dc.language.isoenen
dc.peerreviewedYesen
dc.publisherIWA Publishingen
dc.researchinstituteInstitute of Energy and Sustainable Development (IESD)en
dc.subjectOptimal pipe re-sizing of water distribution networksen
dc.subjectcomplex network theory metricsen
dc.subjectefficient re-sizing plansen
dc.titleTopological and Hydraulic Metrics-Based Search Space Reduction for Optimal Re-Sizing of Water Distribution Networksen
dc.typeArticleen

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