Naslov
Environmental Friendly Ship Propulsion System: case of aft stern tube bearing

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

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
IEEE XPLORE DIGITAL LIBRARY:2012 OFFSHORE AND MARINE TECHNOLOGY: SCIENCE AND INNOVATION / - Rio Grande : IEEE Xplore Digital Library, 2012, 13-16

ISBN
978-1-4673-2090-0

Skup
2012 International Conference on Offshore and Marine Technology: Science and Innovation (NAVTEC)

Mjesto i datum
Rio Grande, Brazil, 22.03.2012. - 24.03.2012

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Selection of material ; design tool ; polymer journal bearing ; ship propulsion system

Sažetak
Environmental protection is finally an important issue and, due to previous sea contaminations and for economic reasons, merchant fleets are paying more attention to materials selection and to ship design. Taking into consideration that the propulsion system lubrication, whether oil or water, and the consequent lubricant leakage into sea is a critical problem, the present study examines the practicability and the benefits of implementing water lubricated polymer stern tube bearings instead of conventional white metal bearings lubricated by oil. The investigation method is related to a numerical model and a software application based on finite difference method and isoviscous model. Results, based upon data collected from two 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 more energy efficient and environmental friendly.

Izvorni jezik
Engleski

Znanstvena područja
Tehnologija prometa i transport, Temeljne tehničke znanosti

POVEZANOST RADA