Πετρέλαιο και ναυτιλιακά καύσιμα

Τσόγκας, Ιωάννης

Master Thesis

Author

Τσόγκας, Ιωάννης

Date

2013-11

Abstract

Petroleum is the fossil fuel that dominates our era's energy consumption and is in fact the world's no. 1 energy source. Nowadays in everyday life, petroleum is used besides all else, for providing the necessary energy for internal combustion engines that our used for inland, airborne and sea transportation of humans and goods. Its colour is dark brown or dark yellowish or even dark blue and its specific gravity varies but more or less around 0.85 - 0.86 depending always on the exporting country and the place of origin. Marine fuel oil even today are based on the residual distillates of crude oil, which have the lowest market based price, and a declining demand in terms of the market restrictions on the sulphur and viscosity of the product. Bunkering/Supply of Marine Fuels to vessels is based on the ISO 8217 which clearly states the specifications for the residual fuel oil and the distillate fuel oil. Given the fact that nowadays bunker consumption on the main and auxiliary engine are more or less 60% of the operating cost of a vessel, serious efforts are in progress in order to minimize the cost of fuels through better construction methods on the hull and reduced resistance on the body of the vessel, as well as less friction between vessel and propeller and using special ballast treatment with antifouling paints and last but not least the enhancement of design for engines with the aim to reduce fuel consumption. Marine fuel, as per ISO 8217 is divided in two major categories, heavy fuel oil and distillates.

Postgraduate Studies Programme

Ναυτιλία

Department

Σχολή Ναυτιλίας και Βιομηχανίας. Τμήμα Ναυτιλιακών Σπουδών

Number of pages

Language

Greek

URI

https://dione.lib.unipi.gr/xmlui/handle/unipi/6917

Collections

Τμήμα Ναυτιλιακών Σπουδών

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