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dc.contributor.authorGaivoronski, Alexei A.
dc.contributor.authorNapolitano, J
dc.contributor.authorSechi, Giovanni M
dc.date.accessioned2018-04-17T11:54:50Z
dc.date.available2018-04-17T11:54:50Z
dc.date.created2018-01-19T20:23:36Z
dc.date.issued2017
dc.identifier.citationEuropean Water. 2017, 58 415-421.nb_NO
dc.identifier.issn1105-7580
dc.identifier.urihttp://hdl.handle.net/11250/2494477
dc.description.abstractReduction of water deficit for users and energy savings are frequently conflicting issues when optimizing large-scale multi-reservoirs and multi-users water supply system. Undoubtedly, a high uncertainty level due to hydrologic input variability and water demand behaviour characterizes these problems. The aim of this paper is to provide a decision support to the Water System Authority, in order to get a robust decision policy, minimizing the risk of wrong future decisions. It has been done through the optimization of emergency and costly water transfer activation. Hence, a costrisk balancing problem has been modelled to manage this problem, balancing the damages in terms of shortage water occurrences and energy and cost requirements for emergency transfers. In Napolitano et al. (2016), we dealt with this problem using a scenario analysis approach. The obtained results were appreciable considering a few number of scenarios and a limited time horizon. Nevertheless, if we had to increase the number of considered scenarios taking into account the effect of climate and hydrological changes, computational problems arise. Therefore, to solve this kind of problems, it is necessary to apply a specialized approach for the optimization under uncertainty. We develop herein a simulation-optimization model using the stochastic gradient methods. The study case is a multi-reservoir and multiusers water supply system in a specific area in South-Sardinia (Italy), characterized by Mediterranean climate.nb_NO
dc.language.isoengnb_NO
dc.publisherE.W. Publications/European Water Resources Associationnb_NO
dc.relation.urihttp://www.ewra.net/ew/pdf/EW_2017_58_61.pdf
dc.titleStochastic gradient methods for the optimization of water supply systemsnb_NO
dc.typeJournal articlenb_NO
dc.typePeer reviewednb_NO
dc.description.versionacceptedVersionnb_NO
dc.source.pagenumber415-421nb_NO
dc.source.volume58nb_NO
dc.source.journalEuropean Waternb_NO
dc.identifier.cristin1547899
dc.description.localcodeThis article will not be available due to copyright restrictions (c) 2017 by E.W. Publications/European Water Resources AssociationElseviernb_NO
cristin.unitcode194,60,25,0
cristin.unitnameInstitutt for industriell økonomi og teknologiledelse
cristin.ispublishedtrue
cristin.fulltextpostprint
cristin.qualitycode1


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