Hybrid bearing development for high-speed turbomachinery in distributed energy systems

• Autorzy: Tkacz E. , Kozanecki Z. , Łagodziński J.
• Języki publikacji: EN

Abstrakty

EN

In the paper authors undertake the design of hydrostatic bearings and hybrid bearings for a specific application – hermetic high–speed turbogenerators for the electric power generation. The most common hydrostatic bearings are usually oil lubricated. On the contrary, the considered here machines are dedicated for the combined heat and power (CHP) production in organic Rankine cycle (ORC) systems and so the hydrostatic bearings use an organic, oil-free working fluid as the lubricant. The reader will acquire an insight into the special characteristics of hydrostatic bearings. Moreover, a new type of bearings, a hybrid bearing, is introduced, which combine both, hydrostatic and hydrodynamic effects. The designed bearings have been manufactured and their good performance confirmed during tests on a real machine.

Słowa kluczowe

EN

oil-free bearings; organic Rankine cycle turbomachinery; design and manufacturing

• Wydawca: Wydawnictwo Instytutu Maszyn Przepływowych PAN
• Czasopismo: Transactions of the Institute of Fluid-Flow Machinery
• Rocznik: 2016
• Tom: nr 131
• Strony: 161--172
• Opis fizyczny: Bibliogr. 8 poz., rys.

Twórcy

autor

Tkacz E.

• Institute of Turbomachinery, Lodz University of Technology, 219/223 Wólczańska, 90-924 Łódź, Poland

autor

Kozanecki Z.

• Institute of Turbomachinery, Lodz University of Technology, 219/223 Wólczańska, 90-924 Łódź, Poland

autor

Łagodziński J.

• Institute of Turbomachinery, Lodz University of Technology, 219/223 Wólczańska, 90-924 Łódź, Poland

Bibliografia

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• [2] Kozanecki Z., Tkacz E., Łagodziński J., Miazga K.: Theoretical and experimental investigations of oil-free bearings and their application in diagnostics of high-speed turbomachinery. [In :] Smart Diagnostics V, Trans Tech Publ.,588, 2014, 302–309.
• [3] Kozanecki Z., Tkacz E., Lagodzinski J., Miazga K.: Oil-free bearings for hermetic high-speed turbomachinery. J. Vibration Eng. Technol. 2(2014), 4, 351–360.
• [4] Kozanecki Z., Kozanecka D., Klonowicz P., Łagodziński J.,.Gizelska M., Tkacz E., Miazga K., Kaczmarek A.: Oil-free low power fluid-flow machinery. Wydawnictwo Instytutu Maszyn Przepływowych PAN, Gdańsk 2014 (in Polish).
• [5] Gizelska M.: Monitoring and diagnostics of special-purpose turbomachines. Open Eng. 5(2015), 1, 500–508.
• [6] Rowe W.B.: Chapter 1 – Application. [In :] Hydrostatic, Aerostatic and Hybrid Bearing Design (W.B. Rowe, Ed.), Oxford: Butterworth-Heinemann 2012, 1–23.
• [7] Frêne J., Nicolas D., Degueurce B., Berthe D., Godet M.: Lubrification hydrodynamique. Paliers et Butées. Cellection de la Direction des études et recherches d’électricité de France, Eyrolles ed., Paris 1990.
• [8] Żywica G., Drewczyński M., Kiciński J., Rządkowski R.: Computational modal and strength analysis of the steam microturbine with fluid-film bearings. J. Vib. Eng. Technol. 2(2014), 6, 543–549