Naslov
Design and Materials Selection for Environmentally Friendly Ship Propulsion System

Autori
Roldo, Liane ; Komar, Ivan ; Vulić, Nenad

Izvornik
Strojniški vestnik (0039-2480) 59 (2013), 1; 25-31

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
ship propulsion system ; selection of materials ; polymer ; babbitt metal ; journal bearing ; software application

Sažetak
The selection of the material regarding specific design of the stern tube journal bearings in vessels is critical taking into account the lubrication system, whether oil or water based, and the consequent lubricant leakage. Therefore, the present study examines the feasibility and the advantages of implementing water lubricated polymer shaft bearings instead of conventional white metal bearings lubricated by oil. The investigation method is related to the numerical model and the software application based on finite difference method and isoviscous model. Results, based upon data collected from three different types of actual vessels in service, have shown that power loss in polymer bearings is at least 6 times less than in conventional white metal ones indicating that polymer journal bearings are significantly more energy efficient and environmentally friendly.

Izvorni jezik
Engleski

Znanstvena područja
Temeljne tehničke znanosti, Interdisciplinarne tehničke znanosti

POVEZANOST RADA