dc.contributor.author | Αλεξανδρατος, Ιωαννης![]() |
el |
dc.contributor.author | Alexandratos, Ioannis![]() |
en |
dc.date.accessioned | 2019-03-29T08:46:25Z | |
dc.date.available | 2019-03-29T08:46:25Z | |
dc.date.issued | 2019-03-29 | |
dc.identifier.uri | https://dspace.lib.ntua.gr/xmlui/handle/123456789/48539 | |
dc.identifier.uri | http://dx.doi.org/10.26240/heal.ntua.15922 | |
dc.rights | Αναφορά Δημιουργού-Όχι Παράγωγα Έργα 3.0 Ελλάδα | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nd/3.0/gr/ | * |
dc.subject | Μετασκευή | el |
dc.subject | Ηλεκτρικό πλοίο | el |
dc.subject | Ρυμουλκό | el |
dc.subject | Ρύποι | el |
dc.subject | Μπαταρίες | el |
dc.subject | Harbor tugboat | en |
dc.subject | Emission quantification | en |
dc.subject | All-electric ship | en |
dc.subject | Batteries | en |
dc.subject | Retrofit | el |
dc.title | Techno-economic feasibility study on the retrofit of a conventional harbor tugboat into a battery powered one | en |
heal.type | bachelorThesis | |
heal.classification | Feasibility studies | en |
heal.classificationURI | http://skos.um.es/unescothes/C01498 | |
heal.language | en | |
heal.access | free | |
heal.recordProvider | ntua | el |
heal.publicationDate | 2018-10-10 | |
heal.abstract | The high fuel oil prices, strict emission regulations as well as improved battery technologies and lower battery prices led to the development and use of novel technologies such as hybrid propulsion systems and cost effective and safe battery systems on the shipping industry. The commercial operation of the world’s first fully electric powered car ferry started in 2015. Since this time battery systems have been increasingly adopted successfully on other ships. The purpose of this dissertation is to investigate the technical, environmental and financial viability of retrofitting a conventional harbor tugboat into a battery powered one, utilizing modern commercialized battery chemistries and technologies. The tugboat in question will be “Archaggelos” which will be operating inside and near the port of Piraeus in a very narrow and tight environment. Its range will be of maximum 5-10 nautical miles outside the port. The operational profile of the tug is based on a 12-hour daily operation, 365 days per year. More specifically, two different technologies, a battery pack system built from lithium iron phosphate modules and a battery system based on the vanadium redox flow battery technology, are examined and compared to each other as well as to the conventional diesel-powered propulsion system. Finally, from the findings of this study it is concluded that even though a battery system based on Lithium iron phosphate modules is technically doable, the present battery prices make the investment of the retrofit profitable but risky without the use of external funding. On the other hand, a battery system based on vanadium redox flow battery technology could be fitted in the tugboat and needs further technological improvements for it to be a viable solution for this specific application. | en |
heal.advisorName | Προυσαλιδης, Ιωαννης | el |
heal.committeeMemberName | Λυριδης, Δημητριος | el |
heal.committeeMemberName | Κλαδας, Αντωνιος | el |
heal.academicPublisher | Εθνικό Μετσόβιο Πολυτεχνείο. Σχολή Ναυπηγών Μηχανολόγων Μηχανικών. Τομέας Ναυτικής Μηχανολογίας | el |
heal.academicPublisherID | ntua | |
heal.numberOfPages | 112 σ. | |
heal.fullTextAvailability | true |
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