20.500.12556/RUL-184641 POGONSKI SISTEMI LADIJ ZA VLEKO TUGBOAT PROPULSION SYSTEMS Diplomsko delo analizira in primerja sodobne propulzijske sisteme na ladjah za vleko z namenom ugotoviti, katera konfiguracija ponuja najboljše razmerje med vlečno silo in ekonomiko obratovanja v pristaniščih. Podrobno so raziskani azimutni potisniki (ASD), cikloidni propulzorji (VSP) in vijaki s spremenljivim korakom (CPP). Hidrodinamična analiza kaže, da sistemi ASD s Kortovimi šobami dosegajo najvišji specifični potisk in največjo statično vlečno silo. Sistemi VSP so superiorni pri manevriranju, CPP pa pri dolgih tranzitih. Zaradi specifičnih operativnih profilov vlačilcev, ki veliko časa preživijo v pripravljenosti, klasični dizelski pogoni delujejo neučinkovito. Naloga zato predstavi prednosti hibridnih pogonskih konfiguracij z baterijskimi sklopi. Analiza stroškov življenjske dobe razkriva, da hibridni sistemi znatno znižujejo operativne stroške in porabo goriva. Delo zaključuje, da so hibridni sistemi ASD tehnološko in ekonomsko optimalna rešitev za sodobna pristanišča. This thesis analyzes and compares modern propulsion systems on towing vessels to determine which configuration offers the best balance between bollard pull and operational economics in modern ports. Azimuth Stern Drives (ASD), Voith-Schneider Propellers (VSP), and Controllable Pitch Propellers (CPP) are investigated in detail. Hydrodynamic analysis indicates that ASD systems equipped with Kort nozzles achieve the highest specific thrust and maximum static bollard pull. VSP systems prove superior in maneuverability, while CPP systems are better suited for long transits. Due to the specific operational profiles of tugboats, which spend significant time on standby, conventional diesel propulsion operates inefficiently. Therefore, the thesis presents the advantages of hybrid propulsion configurations with battery packs. Life-cycle cost analysis reveals that hybrid systems significantly reduce operational expenditures and fuel consumption. The study concludes that hybrid ASD systems represent the technologically and economically optimal solution for modern ports. pogonski sistemi vlačilci ladje za vleko hibridni pogon propulsion systems tugboats towing vessels hybrid propulsion true false false Slovenski jezik Angleški jezik Diplomsko delo/naloga 2026-07-11 08:45:23 2026-07-11 08:45:29 2026-07-13 09:39:21 0000-00-00 00:00:00 2026 0 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 1970-01-01 44924 284513795 17614.pdf 17614.pdf 1 CDCD1013EA9273D1D82117E8E581DA86 e3d06a1f6f393d52030a07b6ab5ed9568a0d480d3b7ea611d12cf484e719c6cf f56ceaf8-7cf3-11f1-9b0d-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=237586 Fakulteta za pomorstvo in promet 0 0 0