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Downstream fish passage technologies for small-to-medium hydropower plants: part I

David, Laurent and Lemkecher, Fatma and Chatellier, Ludovic and Dewitte, Manon and Courret, Dominique and Doessegger, Andreas Downstream fish passage technologies for small-to-medium hydropower plants: part I. (2019) In: Congrès HydroEs 2019 (Hydro Energy & Sustainability 2019), 29 January 2019 - 30 January 2019 (Grenoble, France).

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Abstract

Hydropower plants (HPPs) can block or delay fish migration and cause fish injuries or mortalities during the turbine passage. In the scope of the EU Horizon 2020 research project "Fishfriendly Innovative Technologies for hydropower" (FIThydro), different solutions for downstream migration are studied, applied and compared in different test cases. In particular, Fish Guidance Structures (FGS) with a behavioral or physical effect on fish can be effective solutions to protect and guide downstream migrating fish towards bypasses at water intakes of HPPs. However, these structures should not impair the hydroelectric operation. In this first part, inclined and angled bar racks with low bar spacing are proposed as a solution for small to medium hydropower plants. In the second part of Albayrack et al, 2019, solutions for medium to large HPPs are discussed. Head loss and upstream and downstream velocities fields are important criteria to choose the most efficient solution for both fish protection and hydroelectric operation. In this paper, different solutions with low bar spacing are proposed and discussed for two small and medium HPPs in relation to these different criteria.

Item Type:Conference or Workshop Item (Paper)
Additional Information:Thanks to Société Hydrotechnique de France
Audience (conference):International conference proceedings
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Other partners > Ecole Nationale Supérieure de Mécanique et d'Aérotechnique - ENSMA (FRANCE)
Other partners > Université de Poitiers (FRANCE)
French research institutions > Agence Française pour la Biodiversité - AFB (FRANCE)
Other partners > Limmatkraftwerke AG (SWITZERLAND)
Laboratory name:
Funders:
European Commission
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Deposited On:27 Mar 2020 09:11

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