engleski

A practical approach to vibro-acoustic assessment of turbine cavitation

In vibro-acoustical diagnostics of hydroturbine cavitation one has to identify cavitation components of signals, recognise the components related to erosive cavitation, derive the estimate of the erosion rate, and reveal the role of various turbine elements in the total process. A partly empirical approach to these tasks, verified in practice, is presented. A combination of monitoring and detailed tailor-made measurements is found optimal for a good care of a turbine, and the best way to organise monitoring is to use a tailor-made monitoring system based on the results of the detailed measurements.

cavitation; erosion; hydroturbine; vibroacoustics; hydropower

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