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dc.contributor.authorFagerholt, Kjetil
dc.contributor.authorPsaraftis, Harilaos
dc.date.accessioned2018-01-04T11:29:54Z
dc.date.available2018-01-04T11:29:54Z
dc.date.created2015-08-18T14:14:54Z
dc.date.issued2015
dc.identifier.citationTransportation Research Part D: Transport and Environment. 2015, 39 56-64.nb_NO
dc.identifier.issn1361-9209
dc.identifier.urihttp://hdl.handle.net/11250/2475584
dc.description.abstractThis paper deals with two speed optimization problems for ships that sail in and out of Emission Control Areas (ECAs) with strict limits on sulfur emissions. For ships crossing in and out of ECAs, such as deep-sea vessels, one of the common options for complying with these limits is to burn heavy fuel oil (HFO) outside the ECA and switch to low-sulfur fuel such as marine gas oil (MGO) inside the ECA. As the prices of these two fuels are generally very different, so may be the speeds that the ship will sail at outside and inside the ECA. The first optimization problem examined by the paper considers an extension of the model of Ronen (1982) in which ship speeds both inside and outside the ECA are optimized. The second problem is called the ECA refraction problem, due to its conceptual similarity with the refraction problem when light travels across two different media, and also involves optimizing the point at which the ship crosses the ECA boundary. In both cases the objective of the problem is to maximize daily profit. In addition to mathematical formulations, examples and sensitivity analyses are presented for both problems.nb_NO
dc.language.isoengnb_NO
dc.publisherElseviernb_NO
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internasjonal*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/deed.no*
dc.titleOn two speed optimization problems for ships that sail in and out of emission control areasnb_NO
dc.typeJournal articlenb_NO
dc.typePeer reviewednb_NO
dc.description.versionacceptedVersionnb_NO
dc.source.pagenumber56-64nb_NO
dc.source.volume39nb_NO
dc.source.journalTransportation Research Part D: Transport and Environmentnb_NO
dc.identifier.doi10.1016/j.trd.2015.06.005
dc.identifier.cristin1258625
dc.description.localcode© 2015. This is the authors’ accepted and refereed manuscript to the article. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/nb_NO
cristin.unitcode194,60,25,0
cristin.unitnameInstitutt for industriell økonomi og teknologiledelse
cristin.ispublishedtrue
cristin.fulltextpostprint
cristin.qualitycode2


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Attribution-NonCommercial-NoDerivatives 4.0 Internasjonal
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