Examination of the performance of an ALS (Air Lubrication System) using operational data

Χαραλαμπάκης, Μιχαήλ; Charalampakis, Michail

dc.contributor.author	Χαραλαμπάκης, Μιχαήλ	el
dc.contributor.author	Charalampakis, Michail	en
dc.date.accessioned	2024-01-26T09:23:46Z
dc.date.available	2024-01-26T09:23:46Z
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/58669
dc.identifier.uri	http://dx.doi.org/10.26240/heal.ntua.26365
dc.rights	Default License
dc.subject	Αξιολόγηση Απόδοσης	el
dc.subject	Ship Performance	en
dc.subject	Ανάλυση Δεδομένων	el
dc.subject	Multiple Linear Regression	en
dc.subject	Air Lubrication System	en
dc.subject	Operational Data	en
dc.subject	ISO 19030	en
dc.title	Examination of the performance of an ALS (Air Lubrication System) using operational data	en
dc.title	Αξιολόγηση της απόδοσης ενός συστήματος αέριας λίπανσης της γάστρας με τη χρήση επιχειρησιακών δεδομένων	en
dc.title	Αξιολόγηση της απόδοσης ενός συστήματος αέριας λίπανσης της γάστρας με τη χρήση επιχειρησιακών δεδομένων	en
heal.type	bachelorThesis
heal.classification	Data Analysis	en
heal.classification	Marine Engineering	en
heal.classification	Performance	en
heal.language	en
heal.access	free
heal.recordProvider	ntua	el
heal.publicationDate	2023-07-19
heal.abstract	The goal of this study is to examine the performance of an Air Lubrication System (ALS) installed on an 174000cbm LNG carrier vessel by analyzing operational data. The research is based on data analysis of a ship in various operating modes. For the purposes of this study, the ISO 19030 standard for “Measurement of changes in hull and propeller performance” methodology was used. The standard evaluates hull and propeller performance by measuring alterations of power. It is based on the relation between delivered power and total resistance. Total resistance is comprised of still water, wave, wind and other additional forms of resistance. The calculation of the ship’s resistance values will enable the calculation of the ship’s power. Naturally, corrections need to be applied, in order to account for deviations from the reference sailing condition. The quantified results of the vessel’s performance evaluation are percentage indicators highlighting the deviation of the calculated points from the expected values. The current diploma thesis explores the potential benefit of the application of an Air Lubrication System (henceforth ALS) using operational data provided by a credible performance monitoring system. The analysis will be performed using data from approximately over a year of sailing with alternating between ALS On and Off, in comparable conditions. Having collected the data and filtered for outliers, the savings in power can be calculated, thus displaying the effect of the ALS over time.	en
heal.advisorName	Themelis, Nikolaos	en
heal.committeeMemberName	Ζαραφωνίτης, Γεώργιος	el
heal.committeeMemberName	Μπελιμπασάκης, Κωνσταντίνος	el
heal.academicPublisher	Εθνικό Μετσόβιο Πολυτεχνείο. Σχολή Ναυπηγών Μηχανολόγων Μηχανικών. Τομέας Μελέτης Πλοίου και Θαλάσσιων Μεταφορών	el
heal.academicPublisherID	ntua
heal.numberOfPages	104 σ.	el
heal.fullTextAvailability	false