Field tests on hydrodynamic and hybrid operation of a bi-directional thrust bearing of a pump-turbine

Leszek Dąbrowski; Michał Wasilczuk; Michał Wodtke

Field tests on hydrodynamic and hybrid operation of a bi-directional thrust bearing of a pump-turbine

Abstract

In vertical shaft pump turbines operating in pumped storage power plants an important role is played by a thrust bearing. Because of bi-directional character of operation, thrust bearing tilting pads have to be supported symmetrically, which is known to be unfavourable from the point of view of their performance. Large thrust bearings have to be carefully designed so as to minimise excessive thermo-elastic pad deformations. The research into fluid film thrust bearings has been quite extensive over the years, comprising theoretical studies of bearing properties with the use of more and more sophisticated calculation codes. On the other hand availability of experimental field data on bearing operation is limited for obvious reasons. In this paper the authors present part of the results of extensive field tests of a large bearing of a pump-turbine they have done in a pumped storage power plant. Hopefully this data will be of interest to other researchers to compare theoretical predictions to measurement data.

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Category:: Conference activity
Type:: publikacja w wydawnictwie zbiorowym recenzowanym (także w materiałach konferencyjnych)
Title of issue:: 16th EDF/Pprime Workshop: “Behaviour of journal and thrust bearings under transient and mixed lubrication regime” strony 1 - 12
Language:: English
Publication year:: 2017
Bibliographic description:: Dąbrowski L., Wasilczuk M., Wodtke M.: Field tests on hydrodynamic and hybrid operation of a bi-directional thrust bearing of a pump-turbine// 16th EDF/Pprime Workshop: “Behaviour of journal and thrust bearings under transient and mixed lubrication regime”/ : , 2017, s.1-12
Verified by:: Gdańsk University of Technology

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