Abstract
The article discusses unconventional bearing systems for high-speed rotors, which are used in micro-power turbomachines. Various bearing systems are presented in the subsequent sections of the article, with an indication of their main properties, advantages and disadvantages as well as restrictions associated with their use. Particular attention has been paid to gas foil bearings and bearings lubricated with the vapours of a low-boiling medium. In addition, the results of our own research related to the two above-mentioned bearing types are presented. The research was carried out under the framework of works aimed at selecting bearing systems for vapour microturbines suitable for the operation in ORC systems. The information given herein may be helpful for re-searchers or engineers who need to select a bearing system for a novel high-speed fluid-flow machine that has to withstand harsh operating conditions.
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References
Bronicki, L.Y. (Editor): Power Stations Using Locally Available Energy Sources. Encyclopedia of Sustainability Science and Technology Series. Springer, New York (2018).
Kiciński, J., Żywica, G.: Steam Microturbines in Distributed Cogeneration. Springer, Cham (2014).
Żywica, G., Breńkacz, Ł., Bogulicz, M.: Optimization of the bearing system for a micro-power turbogenerator with a rotational speed up to 120,000 rpm. 13th International Conference on Dynamics of Rotating Machines - SIRM 2019, Copenhagen (2019)
Shen, C., Wang, D., Liu, Y., et al.: Recognition of rolling bearing fault patterns and sizes based on two-layer support vector regression machines. Smart Structures and Systems 13(3), 453–471 (2014).
Kozanecki, Z.: Systemy wirujące maszyn przepływowych małej i średniej mocy, Bibliote-ka Problemów Eksploatacji, Łódz (2008). (in Polish)
Wu, R.Q., Zhang, W.,Yao, M.H.: Nonlinear dynamics near resonances of a rotor-active magnetic bearings system with 16-pole legs and time varying stiffness. Mechanical Systems and Signal Processing 100, 113–134 (2018).
Ji, J.C., Hansen, C.H., Zander, A.C.: Nonlinear dynamics of magnetic bearing systems. Journal of Intelligent Material Systems and Structures 19(12), 1471–1491 (2008).
Tkacz, E., Kozanecka, D., Kozanecki, Z., Miazga, K.: Investigations of oil-free support systems to improve the reliability of ORC hermetic high-speed turbomachinery. Mechanics and Mechanical Engineering 15(3), 355-365 (2011).
Kiciński, J.: Rotor Dynamics. IFFM Publisher, Gdansk (2006).
Kaczmarczyk, T.Z., Żywica, G., Ihnatowicz, E.: Vibroacoustic diagnostics of a radial microturbine and a scroll expander operating in the organic Rankine cycle installation. Journal of Vibroengineering 16(6), 4130-4147 (2016).
Larsen, J.S., Hansen, A.J. and Santos, I.F.: Experimental and theoretical analysis of a rigid rotor supported by air foil bearings. Mechanics and Industry 16(1), Paper No. 106 (2015).
Żywica, G., Bagiński, P., Banaszek, S.: Experimental studies on foil bearing with a sliding coating made of synthetic material, Journal of Tribology 138(1), 011301 (2016).
Kozanecki, Z., Łagodziński, J., Tkacz, E., Miazga, K.: Performance of Thrust Airfoil Bearing for Oil-Free Turbomachinery. Journal of Vibration Engineering & Technologies 6 (1), 1–6 (2018).
DellaCorte, C., A new foil air bearing test rig for use to 700 °C and 70,000 rpm. Tribology Conference, London (1997).
Żywica, G., Bagiński, P., Andrearczyk, A.: Experimental research on gas foil bearings with polymer coating at an elevated temperature. Tribologia 3, 217–227 (2016).
Acknowledgement
The work presented in this article was supported by the scientific project No. 2016/21/D/ST8/01711, financed by the National Science Centre (NCN) in Poland.
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Żywica, G., Bagiński, P. (2019). Investigation of unconventional bearing systems for microturbines. In: Uhl, T. (eds) Advances in Mechanism and Machine Science. IFToMM WC 2019. Mechanisms and Machine Science, vol 73. Springer, Cham. https://doi.org/10.1007/978-3-030-20131-9_339
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DOI: https://doi.org/10.1007/978-3-030-20131-9_339
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