Print Email Facebook Twitter Decreasing the Discolouration Risk of Drinking Water Distribution Systems through Optimised Topological Changes and Optimal Flow Velocity Control Title Decreasing the Discolouration Risk of Drinking Water Distribution Systems through Optimised Topological Changes and Optimal Flow Velocity Control Author Abraham, E. (TU Delft Water Resources) Blokker, EJM (KWR Water Research Institute) Stoianov, Ivan (Imperial College London) Date 2017 Abstract In this paper, a new mathematical framework is proposed for maximizing the self-cleaning capacity (SCC) of drinking water distribution systems by controlling the diurnal peak flow velocities in the pipes under normal operation. This is achieved through an optimal change of the network connectivity (topology). This paper proposes an efficient algorithm for the network analysis of valve closures, which allows enforcing favorable changes in the flow velocities for maximizing the SCC by determining an optimal set of links to isolate in the forming of a more branched network, while concurrently satisfying the hydraulic and regulatory pressure constraints at the demand nodes. Multiple stochastic demands from an end-use demand model are generated to test the robustness in the improved SCC for the modified network connectivity under changing demand. An operational network model is used to demonstrate the efficacy of the proposed approach. To reference this document use: http://resolver.tudelft.nl/uuid:40f6e7df-ec42-40a9-80dc-cc4735caaaaa DOI https://doi.org/10.1061/(ASCE)WR.1943-5452.0000878 ISSN 0733-9496 Source Journal of Water Resources Planning and Management, 144 (10) Part of collection Institutional Repository Document type journal article Rights © 2017 E. Abraham, EJM Blokker, Ivan Stoianov Files PDF Manuscript_Abrahametal_ac ... d_Copy.pdf 654.33 KB Close viewer /islandora/object/uuid:40f6e7df-ec42-40a9-80dc-cc4735caaaaa/datastream/OBJ/view