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Flow-optimised Screens Serve Fish Protection and Power Production

Examples of screen bar shapes for fish protection screens at hydropower sites

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Citation

Ecologic Institute 2021: Flow-optimised screens serve fish protection and power production. Examples of screen bar shapes for fish protection screens at hydropower sites. Infographic published in: Keuneke, Rita 2021: Technical functionality of large fish protection screens confirmed in practice. Operational experience with large screen systems. Aachen: Ingenieurbüro Floecksmühle GmbH.

This infographic shows examples of screen bar shapes for fish protection screens at hydropower sites. Small screen bar spacing for better fish protection also causes the screen to become clogged with debris more quickly, which can impair the operation of the hydropower plant. To counteract this, particularly flow-optimised, round, drop-shaped or Y-shaped screen bar shapes are used, as well as combinations of these shapes. Furthermore, high-performance screen cleaning is indispensable. The infographic is part of the fact sheet "Technical Functionality of Large Fish Protection Screens Confirmed in Practice."

The infographic is published under a creative commons license CC BY 4.0. That means it can be copied and redistributed in any medium or format and for any purpose as long as appropriate credit to the authors (Ecologic Institute, Ingenieurbüro Floecksmühle GmbH, Aachen) is given.

Screen cleaning also serves to protect fish

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German
English
Credits

Media format: coloured infographic for a digital fact sheet
Copyright: CC BY 4.0
Content: Rita Keuneke (Ingenieurbüro Floecksmühle GmbH)
Graphic design: Lena Aebli

Funding
Published in
Fact Sheet 04: Technical Functionality of Large Fish Protection Screens Confirmed in Practice
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Year
Project
Project ID
Keywords
Water Framework Directive, WFD, river, nature conservation, biodiversity, energy, hydropower, fish, migration, watercourse, connectivity, restoration, hydromorphology, protection
Europe, Germany, Austria, Switzerland
infographic, visualization, illustration, creative commons, fact sheet

Source URL: https://www.ecologic.eu/19130