Innovative Solutions for Compliance with EEXI Regulations: Evaluating the Effect of Energy 
Saving Devices and Engine Power Limitations on Vessel Performance

Παπαευθυμίου, Κωνσταντίνος; Papaefthymiou, Konstantinos

dc.contributor.author	Παπαευθυμίου, Κωνσταντίνος	el
dc.contributor.author	Papaefthymiou, Konstantinos	en
dc.date.accessioned	2023-04-06T08:52:42Z
dc.date.available	2023-04-06T08:52:42Z
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/57501
dc.identifier.uri	http://dx.doi.org/10.26240/heal.ntua.25198
dc.rights	Default License
dc.subject	Retrofits	en
dc.subject	Απανθρακοποίηση	el
dc.subject	Ενεργειακή αποδοτικότητα	el
dc.subject	Decarbonization	en
dc.subject	Energy saving devices	en
dc.subject	EEXI	en
dc.subject	Engine Power limitation	en
dc.subject	Μείωση ισχύος μηχανής	el
dc.subject	Vessel performance	en
dc.title	Innovative Solutions for Compliance with EEXI Regulations: Evaluating the Effect of Energy Saving Devices and Engine Power Limitations on Vessel Performance	en
heal.type	bachelorThesis
heal.classification	Marine engineering	en
heal.classification	Energy efficiency	en
heal.language	en
heal.access	free
heal.recordProvider	ntua	el
heal.publicationDate	2022-10
heal.abstract	This Thesis, entitled “The effect of Energy Saving Devices and the Engine Power limitation on both Energy Efficiency Existing Ship Index (EEXI) and the maximum allowed speed.”, was developed within the field of undergraduate studies at the Naval Architecture and Marine Engineering department of the National Technical University of Athens, under the supervision of Associate Professor Dr. Nikolaos P. Ventikos. The scope of this analysis is to mitigate the negative impacts, enhance the implementation of the index, and upgrade the entire world fleet. This is feasible with the assessment of the energy efficiency technologies on the operational profile of a vessel when combined with EPL. The subject of this research is to incentivize development and deployment of further energy saving technologies and innovative ship designs. The revision of existing and setting of future design standards should be a matter of further analysis. In the present thesis, a broad approach is carried out to the marine sector from an environmental point of view. This thesis refers to the Energy Efficiency Existing Index (EEXI) issues, undertaken by the International Maritime Organization (IMO) for limiting Greenhouse Gas Emissions (GHG). At first, this paper identifies the Environmental challenges the shipping industry is facing, describes the initiatives undertaken until now, addressesthe responsibility taken by the shipping industry, and presents the Initial IMO strategy with more gravity given to the short-term measures. Continuing the paper introduces the Regulatory framework concerning the short-term measures and in more detail the Energy Efficiency Existing Index (EEXI). This introduction includes the main parameters, the formula of the calculation, the implementation process, some specific vessel cases, and the main options to comply. Proceeding the paper assesses the Post EEDI vessels on their compliance with the EEXI regulations. The analysis evaluated tankers, bulk carriers, and container ships from the IMO EEDI database for 2020. The results from the statistical analysis gave us some interesting conclusions about the fleet performance. One interesting discovery was that almost no vessel in all 3 categories reported the use of innovative electrical and/or mechanical energy-saving technologies and so there is considerable scope for further improvement. ESDs can effectively help decrease the EEDI and EEXI because energy saving is simultaneously achieved without significantly changing ship dimensions or incurring additional costs. The relation between EPL and the usage of ESDs is investigated in order to assess the impact of their combination on older vessels that had ELP that limited their operational speeds. In the last sector the study investigates with some case studies, the alternative options of a vessel to compliance. The difference on the operational profile after implementation and the relation between tha usage of ESDs and the feasible speeds this vessel can achieve in relation to just implementing EPL. The process is contacted with the use of a numerical computing environment named Ship Energy Compliance Software. The platform operates as an interactive tool which, through appropriately configured boxes written in English, receives the necessary input data from the user and outputs the requested results according to the parameters set for each inquiry. The required input data relates to the basic characteristics of the ships, the specifications of their engines, the speed power curves for every loading condition and the 3 NOON reports in order to identify the Operational profile. The exported results provide the combination of ships EPL and ESDs net power saving (Category B and C), along with the estimated performance of the vessel in terms of speed feasibility. All results are saved in the platform in order to be intelligible and their further processing to be feasible, while they are also presented in graphs and charts.	en
heal.sponsor	RINA Hellas	en
heal.advisorName	Βεντίκος Νικόλαος	el
heal.advisorName	Ventikos, Nikolaos	en
heal.advisorName	Chatzinikolaou, Stefanos
heal.committeeMemberName	Ανυφαντής, Κωνσταντίνος	el
heal.committeeMemberName	Θεμελής, Νικόλαος	el
heal.academicPublisher	Εθνικό Μετσόβιο Πολυτεχνείο. Σχολή Ναυπηγών Μηχανολόγων Μηχανικών. Τομέας Μελέτης Πλοίου και Θαλάσσιων Μεταφορών	el
heal.academicPublisherID	ntua
heal.numberOfPages	140 σ.	el
heal.fullTextAvailability	false