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<p>Fish face increased injury and mortality when passing through hydraulic structures, including hydropower turbines. To quantify these risks, 30&#xa0;prototypes barotrauma detection system (BDS) sensors were developed, calibrated and deployed at three Austrian hydropower plants: Kirchbichl, Annabrücke and Friesach. The study analyzed the pressure time series of 238 time-series data sets, considering full and partial load scenarios considering the pressure nadir and rate of change. Summary statistics of the pressure-based parameters at each site are compared to thresholds for fish injury and mortality due to barotrauma obtained from laboratory and field studies obtained from the literature.</p>

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Physikalische Bedingungen beim Turbinendurchgang – Analyse von Druckdaten bei der Passage von Kaplan-Turbinen

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年6月18日

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  • Jeffrey A. Tuhtan,
  • Gert Toming,
  • Walter Reckendorfer,
  • Josef Schneider,
  • Martin Schletterer

摘要

Fish face increased injury and mortality when passing through hydraulic structures, including hydropower turbines. To quantify these risks, 30 prototypes barotrauma detection system (BDS) sensors were developed, calibrated and deployed at three Austrian hydropower plants: Kirchbichl, Annabrücke and Friesach. The study analyzed the pressure time series of 238 time-series data sets, considering full and partial load scenarios considering the pressure nadir and rate of change. Summary statistics of the pressure-based parameters at each site are compared to thresholds for fish injury and mortality due to barotrauma obtained from laboratory and field studies obtained from the literature.