Energy recovery and leakage-reduction optimization of water distribution systems using hydro turbines

dc.contributor.authorBonthuys, Gideon Johannes
dc.contributor.authorVan Dijk, Marco
dc.contributor.authorCavazzini, Giovanna
dc.contributor.emailmarco.vandijk@up.ac.zaen_ZA
dc.date.accessioned2021-01-13T10:45:16Z
dc.date.available2021-01-13T10:45:16Z
dc.date.issued2020-05
dc.description.abstractPotential for energy recovery exists at any point within a water distribution system where the mechanical energy of excess water pressure can be converted into electrical energy. Energy conversion decreases the average operating pressure within a system, which in turn reduces water losses from leakages in the system due to the proportionality of leakage and pressure. This paper explores the incorporation of a genetic algorithm (GA) in a procedure to optimize the location and size of energy-recovery turbines (ERT) within a water distribution system based on maximizing recovered energy and reduced water losses evaluated on an economic basis and assigned a differentiated weighted importance. The developed procedure was tested on a well-known pressure management benchmark network as well as a water network from previous studies. Where previous studies on the benchmark network were only focused on pressure management, the current procedure produced results on pressure management with the added benefit of an analysis on both energy recovery and leakage reduction. The procedure provides municipal and water utility managers with a better-informed basis for pressure management and energy-recovery decision making.en_ZA
dc.description.departmentCivil Engineeringen_ZA
dc.description.librarianhj2020en_ZA
dc.description.urihttp://ascelibrary.org/journal/jwrmd5en_ZA
dc.identifier.citationBonthuys, G.J., Van Dijk, M. & Cavazzini, G. 2020, 'Energy recovery and leakage-reduction optimization of water distribution systems using hydro turbines', Journal of Water Resources Planning and Management, vol. 146, no. 5, art. 4020026.en_ZA
dc.identifier.issn0733-9496 (print)
dc.identifier.issn1943-5452 (online)
dc.identifier.other10.1061/(ASCE)WR.1943-5452.0001203
dc.identifier.urihttp://hdl.handle.net/2263/78006
dc.language.isoenen_ZA
dc.publisherAmerican Society of Civil Engineersen_ZA
dc.rights© 2020 American Society of Civil Engineersen_ZA
dc.subjectWater pressureen_ZA
dc.subjectEnergy conversionen_ZA
dc.subjectWater leakageen_ZA
dc.subjectWater lossen_ZA
dc.subjectEnergy lossen_ZA
dc.subjectPower transmissionen_ZA
dc.subjectElectric poweren_ZA
dc.subjectWater supply systemsen_ZA
dc.subjectHydro poweren_ZA
dc.subjectGenetic algorithm (GA)en_ZA
dc.subjectEnergy-recovery turbines (ERT)en_ZA
dc.titleEnergy recovery and leakage-reduction optimization of water distribution systems using hydro turbinesen_ZA
dc.typePostprint Articleen_ZA

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