engleski

Would turbine uprating be allowable with respect to cavitation? : An example of vibroacoustic diagnosis

Velocity field disturbances at the inflow to the runner of a turbine caused by the stay and guide vanes alter the vibroacoustic cavitation signature. The telltale amplitude modulation can be a means to identify the incipient, weak, or moderate cavitation related to each vane/runner blade pair. An application of this method is presented identifying the turbine parts responsible for the increase of cavitation predicted when uprating a 60 MW Kaplan turbine.

cavitation; erosion; turbine; uprating

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