Preračun porabe goriva KRISO tipa kontejnerske ladje s pomočjo meritve upora modela

diplomsko delo

Žan Kopušar (Author), Aleksander Grm (Mentor)

Abstract

Diplomska naloga obravnava preračun porabe goriva za kontejnersko ladjo KRISO z uporabo metode meritve upora modela v bazenu. Glavni cilj je bil razviti celovit pristop k oceni porabe goriva, ki temelji na eksperimentalnih meritvah, teoretičnih izračunih in optimizaciji pogonskega sistema. Raziskava je pokrivala vse ključne vidike, in sicer od hidrodinamičnih lastnosti trupa do ekonomske analize posledic obraščenosti. Meritve upora so bile izvedene na geometrijsko podobnem modelu ladje v vlečnem bazenu pri različnih hitrostih. Za pretvorbo rezultatov na realno ladjo je bila uporabljena Froudejeva hipoteza s korekcijami za hrapavost površine po Townsinovi formuli. Rezultati so pokazali, da metoda omogoča napovedovanje upora z natančnostjo pod pet odstotkov. Na podlagi izračunanega upora je bila določena potrebna efektivna moč motorja, ki znaša 26525,05 kW pri projektni hitrosti 18,29 vozla. Izbira optimalnega pogonskega sistema je vključevala analizo razpoložljivih dvotaktnih motorjev in načrtovanje propelerja iz Wageningen B-serije. Izbran je bil motor MAN/B&W, modelne oznake 8G80ME-C10.7-HPSRC. Analiza porabe goriva je pokazala, da obraščenost trupa vpliva na ekonomsko učinkovitost poslovanja. Povečanje hrapavosti s 150 na 600 mikrometrov povzroči na potovanju med Koprom in New Yorkom povečanje porabe goriva za 4,9 odstotka, kar pomeni dodatne stroške, ki so variabilni glede na ceno goriva. Rezultati raziskave so bili potrjeni s primerjavo odprto dostopnih podatkov za tip ladje KRISO in so pokazali dobro ujemanje. Prispevek diplomske naloge je v celovitem pristopu, ki združuje teoretične osnove, praktične izračune in ekonomske analize, kar omogoča boljše načrtovanje in upravljanje ladijskih operacij. Ključni dejavniki optimizacije porabe goriva vključujejo redno vzdrževanje trupa, pravilno izbiro delovne točke motorja in uporabo sodobnih pristopov pri načrtovanju propelerja. Rezultati lahko služijo kot osnova za nadaljnje raziskave na področju trajnostne pomorske transportne tehnologije.

Keywords

ladijski motorji;propulzija;pogonski sistemi;optimizacija;poraba goriva;meritve v bazenu;diplomske naloge;

Data

Language:	Slovenian
Year of publishing:	2025
Typology:	2.11 - Undergraduate Thesis
Organization:	UL FPP - Faculty of Maritime Studies and Transport
Publisher:	[Ž. Kopušar]
UDC:	629.5.03:621.182.3(043.2)
COBISS:	236457219
Views:	252
Downloads:	61
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	English
Secondary title:	FUEL CONSUMPTION CALCULATION FOR KCS-TYPE CONTAINER SHIPS USING A MODEL RESISTANCE MEASUREMENT METHOD
Secondary abstract:	This thesis examines fuel consumption calculations for the KRISO container ship (KCS) using model resistance measurements in a towing tank. The primary objective was to develop a comprehensive methodology for fuel consumption assessment based on experimental measurements, theoretical calculations, and propulsion system optimization. The research covered all key aspects from hull hydrodynamic characteristics to economic analysis of hull fouling effects. Resistance measurements were conducted on a geometrically similar ship model at various speeds in the towing tank. The Froude hypothesis, with surface roughness corrections according to Townsin's formula, was applied to scale the results to the full-size vessel. The results demonstrated that this method predicts ship resistance with an accuracy of within 5%. Based on the calculated resistance, the required effective engine power was determined to be 26,525.05 kW at the design speed of 18.29 knots. The propulsion system optimization involved analysis of available two-stroke engines and design of a Wageningen B-series propeller. The selected propulsion system was a MAN/B&W 8G80ME-C10.7-HPSRC engine. The fuel consumption analysis revealed that hull fouling significantly impacts operational efficiency. An increase in surface roughness from 150 μm to 600 μm resulted in a 4.9% increase in fuel consumption for the Koper-New York route, leading to additional costs that vary depending on fuel prices. The research findings were validated against open-source data for KRISO-type vessels, showing excellent correlation. The thesis contributes through its integrated approach combining theoretical foundations, practical calculations, and economic analyses, enabling improved planning and management of ship operations. Key factors for fuel consumption optimization include regular hull maintenance, proper selection of engine operating points, and application of modern propeller design approaches. These results may serve as a foundation for further research in sustainable maritime transport technologies.
Secondary keywords:	propulsion optimization;hull fouling;ship efficiency;engine selection;towing tank measurement;
Type (COBISS):	Bachelor thesis/paper
Study programme:	0
Embargo end date (OpenAIRE):	1970-01-01
Thesis comment:	Univ. v Ljubljani, Fak. za pomorstvo in promet
Pages:	1 spletni vir (1 datoteka PDF (V, 45 str.))
ID:	26412293