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Abstract
Fluid film bearings have been extensively used in the industry because of their unbeatable durability and extremely low friction coefficient, despite a very low coefficient of friction dissipation of energy being noticeable, especially in large bearings. Lubricating systems of large tilting pad thrust bearings utilized in large, vertical shaft hydrogenerators are presented in this paper. A large amount of heat is generated due to viscous shearing of the lubricant large tilting pad thrust bearings, and this requires systems for forced cooling of the lubricant. In the dominant bath lubrication systems, cooling is realized by internal coolers or external cooling systems, with the latter showing some important advantages at the cost of complexity and also, potentially, lower reliability. Substantial losses in the bearings, reaching 1 MW in extreme cases, are a good motivation for the research and development aimed at reducing them. Some possible methods and their potential efficiency, along with some effects already documented, are also described in the paper.
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Full text
- Publication version
- Accepted or Published Version
- DOI:
- Digital Object Identifier (open in new tab) 10.3390/lubricants3020164
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Details
- Category:
- Articles
- Type:
- publikacja w in. zagranicznym czasopiśmie naukowym (tylko język obcy)
- Published in:
-
Lubricants
no. 3,
edition 2,
pages 164 - 180,
ISSN: 2075-4442 - Language:
- English
- Publication year:
- 2015
- Bibliographic description:
- Wasilczuk M.. Friction and Lubrication of Large Tilting-Pad Thrust Bearings. Lubricants, 2015, Vol. 3, iss. 2, s.164-180
- DOI:
- Digital Object Identifier (open in new tab) 10.3390/lubricants3020164
- Verified by:
- Gdańsk University of Technology
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