Τεχνο-οικονομική μελέτη εφικτότητας μετασκευής επιβατηγών-
οχηματαγωγών πλοίων σε πλήρως ηλεκτρικά για τις πορθμειακές
γραμμές Μέγαρα-Σαλαμίνα, Πέραμα-Παλούκια,Ωρωπός-Ερέτρια

Πράπας, Μάριος; Prapas, Marios

dc.contributor.author	Πράπας, Μάριος	el
dc.contributor.author	Prapas, Marios	en
dc.date.accessioned	2021-11-19T09:01:06Z
dc.date.available	2021-11-19T09:01:06Z
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/54076
dc.identifier.uri	http://dx.doi.org/10.26240/heal.ntua.21774
dc.rights	Default License
dc.subject	Techno‐economical study	en
dc.subject	Battery-ship	en
dc.subject	Shipping emissions	en
dc.subject	History of electric ships	en
dc.subject	Fully electric ship	en
dc.subject	Τεχνοοικονομική μελέτη	el
dc.subject	Μπαταρία-πλοίο	el
dc.subject	Εκπομπές ναυτιλίας	el
dc.subject	Ιστορία ηλεκτρικών πλοίων	el
dc.subject	Πλήρως ηλεκτρικό πλοίο	el
dc.title	Τεχνο-οικονομική μελέτη εφικτότητας μετασκευής επιβατηγών- οχηματαγωγών πλοίων σε πλήρως ηλεκτρικά για τις πορθμειακές γραμμές Μέγαρα-Σαλαμίνα, Πέραμα-Παλούκια,Ωρωπός-Ερέτρια	el
dc.title	Techno‐economical feasibility study on the retrofit of double ended Ro/Pax ferries into battery‐powered ones for lines Megara-Salamina, Perama-Paloukia, Oropos-Eretria	en
heal.type	bachelorThesis
heal.classification	Ναυτική Μηχανολογία	el
heal.classification	Marine Engineering	en
heal.language	el
heal.access	free
heal.recordProvider	ntua	el
heal.publicationDate	2021-06-28
heal.abstract	The purpose of this dissertation is the feasibility study for the retrofit of an open type passenger ferry into a fully electric ship. The analysis is based on existing ships that cover specific ferry lines. More specifically, the following ferry lines are going to be studied: Perama Megaron - Faneromeni Salamina, Perama-Paloukia and finally Oropos - Eretria. These ferry lines are of great interest, as the ships that cover these routes make several itineraries per year, and as a result the benefits become significant for both the shipowner from the reduction of operating costs and for the environment from the reduction of emissions. Initially, in the first chapter of the dissertation, an analysis of Short Distance Shipping in Europe is made, the aim of which is to illustrate its importance in world trade. A typical example of a country in which the Short Sea Shipping is dominant, due to its several ferry lines, is Norway, which is one of the first countries that promote the construction of electric ships in order to cover these routes. In the same philosophy, Greece is also a case of a country which has numerous ferry lines, and as a result whether the conversion of existing ships into electric or their construction from the beginning is a completely realistic choice. Furthermore, the second chapter of the dissertation is presented, which focuses on the different types of lithium ion batteries. Lithium-ion batteries are an excellent choice for industrial applications as they have excellent properties in terms of thermal stability, high values of specific energy and a large number of operating cycles. The aim of the chapter is to identify the optimal battery type which is going to equip the electric ship and at the same time to determine the best operating conditions of the battery. In addition, the next chapter presents the basic equipment that will be used on the ship such as the battery and BMS, electric motors, inverters and Azipod thrusters. At the same time, emphasis is placed on the layout of the batteries and the number of battery packs that will be installed on the ship, while special mention is made for the electric power supply network of the ship. The fourth chapter of the dissertation presents the development of a specific methodology for the realization of the techno-economic study. More specifically, the methodology is based on the energy requirements of the ship in port and voyage and finally the aim is to calculate the installed capacity of the batteries in the ship, taking into consideration a specific charging scenario, the charging current and the maximum depth of discharge of the battery. The annual operating costs of the ship before and after the retrofit will be determined and finally the sustainability of the investment will be studied. The fifth chapter will present an approximate method for determining the ship's resistance to its service speed, with the aim of finding the maximum operating load of the engine. The maximum operating load of the engine during the trip is important to be determined even approximately, because it is one of the most important energy demands. Then the scenarios and the final conclusions for all the ferry lines mentioned above will be presented in separate chapters. Finally, in the last chapter an approach to the environmental benefits derived from the retrofit will be made, and furthermore an effort to quantify emission reductions due to the retrofit of ships to fully electric for the lines studied.	en
heal.advisorName	ΠΡΟΥΣΑΛΙΔΗΣ, ΙΩΑΝΝΗΣ	el
heal.committeeMemberName	ΠΡΟΥΣΑΛΙΔΗΣ, ΙΩΑΝΝΗΣ
heal.committeeMemberName	ΛΥΡΙΔΗΣ, ΔΗΜΗΤΡΙΟΣ	el
heal.committeeMemberName	ΚΛΑΔΑΣ, ΑΝΤΩΝΙΟΣ	el
heal.academicPublisher	Εθνικό Μετσόβιο Πολυτεχνείο. Σχολή Ναυπηγών Μηχανολόγων Μηχανικών	el
heal.academicPublisherID	ntua
heal.numberOfPages	151 σ.	el
heal.fullTextAvailability	false