Oil free bearing development for high-speed turbomachinery in distributed energy systems – dynamic and environmental evaluation

• Autorzy: Tkacz E. , Kozanecka D. , Kozanecki Z. , Łagodziński J.
• Konferencja: International Symposium on Compressor & Turbine Flow Systems Theory & Application Areas "SYMKOM" (11 ; 20-23.10.2014 ; Łódź, Polska)
• Języki publikacji: EN

Abstrakty

EN

Modern distributed energy systems, which are used to provide an alternative to or an enhancement of traditional electric power systems, require small size high-speed rotor turbomachinery to be developed. The existing conventional oil-lubricated bearings reveal performance limits at high revolutions as far as stability and power loss of the bearing is concerned. Non-conventional, oil-free bearings lubricated with the machine working medium could be a remedy to this issue. This approach includes a correct design of the machine flow structure and an accurate selection of the bearing type. Chosen aspects of the theoretical and experimental investigations of oil-free bearings and supports, including magnetic, tilting pad, pressurized aerostatic and hydrostatic bearings as well as some applications of oil-free bearing technology for high-speed turbomachinery are described in the paper.

Słowa kluczowe

EN

oil-free bearings; turbomachinery; distributed energy systems

PL

łożyska bezsmarowe; turbomechanika; teoria; badania

• Wydawca: Wydawnictwo Politechniki Łódzkiej
• Czasopismo: Zeszyty Naukowe. Cieplne Maszyny Przepływowe - Turbomachinery / Politechnika Łódzka
• Rocznik: 2014
• Tom: nr 145
• Strony: 121--122
• Opis fizyczny: Bibliogr. 5 poz.

Twórcy

autor

Tkacz E.

• Institute of Turbomachinery Lodz University of Technology 219/223 Wolczanska St, 90-924 Lodz, Poland

autor

Kozanecka D.

• Institute of Turbomachinery Lodz University of Technology 219/223 Wolczanska St, 90-924 Lodz, Poland

autor

Kozanecki Z.

• Institute of Turbomachinery Lodz University of Technology 219/223 Wolczanska St, 90-924 Lodz, Poland

autor

Łagodziński J.

• Institute of Turbomachinery Lodz University of Technology 219/223 Wolczanska St, 90-924 Lodz, Poland

Bibliografia

• [1] Kozanecki Z., Kozanecka D.: 2010, Theoretical and experimental investigations of oil-free support systems to improve the reliability of industrial turbomachinery, Proceedings of the 8th IFToMM International Conference on Rotor Dynamics, pp. 686-692.
• [2] Kozanecka D., Kozanecki Z., Łagodziński J.: 2010, Active magnetic damper in a power transmission system, Communications in Nonlinear Science and Numerical Simulation, Journal Elsevier, No. 16 (2011), pp. 2273-2278. www.elsevier.com/locate/ cnsns_1567.
• [3] Kozanecki Z., Łagodziński J.: Magnetic Thrust Bearing for the ORC High-Speed Microturbine, Solid State Phenomena, Vol. 198 (2013), pp. 348-353, available online since 2013/Mar/11 at www.scientific.net © (2013) Trans Tech Publications, Switzerland doi: 10.4028/www.scientific.net/SSP.198.348
• [4] Kozanecki Z., Tkacz E., Łagodziński J., Miazga K.: 2012, Oil-free bearings for hermetic high-speed turbomachinery, Conference Proceedings VETOMAC-VIII, ISBN 978-83-88237-61-4.
• [5] Kozanecki Z., Kozanecka D., Klonowicz P., Łagodziński J., Gizelska M., Tkacz E., Miazga K., Kaczmarek A.: 2014, monograph: Oil-free Turbomachinery of Low Power ISBN 978-83-88237-27-0, copyright by the Institute of Fluid Flow Machinery Polish Academy of Sciences, Gdańsk (in Polish).