Optimal Design of District Metered Areas in Water Distribution Networks Using Community Detection Algorithm and Many Objective Optimization
Publication: World Environmental and Water Resources Congress 2022
ABSTRACT
The formation of district metered areas (DMAs) aims to improve the efficiency of water distribution network (WDN) management. In recent times, this technique has widely gained attention of researchers and water utility engineers due to its ability to provide better operational control over system leakage, pressure management, and non-revenue water (NRW) related aspects. DMA formation involves closure of a few pipes to partially isolate areas (or sectors) to form single or multi-feed DMAs. In the latter, flowmeters are installed to monitor the inflow and outflows. This paper presents a multi-step methodology to identify DMAs based on a community detection algorithm in the first step. The second step focuses on boundaries fixation using a many objective optimization tool (NSGA-III algorithm). The economic criteria, water quality, resilience, and network pressure are simultaneously optimized to arrive at a set of feasible solutions. In the last step, a multi-criteria decision making (MCDM) tool is used to find a unique solution based on users’ preference of weightages assigned to different objectives. The methodology has been tested on a medium sized water network, and the results are discussed. It is found that the proposed methodology can reasonably identify feasible solutions to optimally partition the network into DMAs.
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World Environmental and Water Resources Congress 2022
Pages: 1076 - 1084
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Published online: Jun 2, 2022
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