Air Injection as a Solution to the Problem for Reducing High-Frequency Acoustic Noise in Some Operating Modes of Francis Hydro Turbines

During operation of Francis hydro turbines at the regimes of 70–95 % of Nrated, high-frequency acoustic phenomena (noise) were recorded. In order to study and identify the causes of these phenomena, special field tests were conducted. The main objectives of the tests were: determination of the main...

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Bibliographic Details
Main Authors: Dolmatov E. N., Ilin S. Y., Eliferov V. V.
Format: article
Language:EN
FR
Published: EDP Sciences 2021
Subjects:
Online Access:https://doaj.org/article/b43b0e3f98a647c7ba5aa231925c1ea7
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