Zur Verringerung von Fischschäden in Turbinen mittels Verhaltensbeeinflussung

Geiger, Franz M.; Cuchet, Mathilde; Rutschmann, Peter

doi:10.1007/s35147-020-0756-5

Cited by 2 publications

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“…In the case of the Bulb turbine in the TUM Lab, the ringshaped anode was mounted around the Kaplan turbine hub to direct the fish to the passing location where their probability of survival is highest. The electrode setup at the bulb turbine intake (left) and exemplary results for damage rates (right) without IDA (normal) and with IDA (IDA) in dependency of the fish total length (TL) (see Geiger et al 2020b) The first results of IDA studies are provided in Fig. 10.3 (right).…”

Section: Influencing the Impact On Fish During Turbine Passage-idamentioning

confidence: 99%

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Measures to Improve Fish Passage Through a Turbine

Geiger¹,

Rutschmann

Stoltz

2022

Novel Developments for Sustainable Hydropower

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This chapter focuses on the topic of measures to improve the fish passage through a turbine. Based on applications at the bulb units of the FIThydro Testcases of Guma, Bannwil and Obernach cost efficient and simple to apply measures are analysed. In the following two methods are presented. Applying a numerical analysis of the downstream fish passage typical physical stressor variables as strike, shear and barotrauma can be identified and correlated to the biological impact on the fish. In the FIThydro project, Voith applied the method to a wide range of operating conditions to derive fish-passage hill-charts. These allow a judgment of the physical impact on fish, dependent on the operating condition of the turbine. The studies at the Obernach lab performed by the team of the Technical University of Munich, show another method to improve fish survival rates by influencing fish pathways through the turbine. These promising results can be used for the Induced Drift Application (IDA), which are described in detail.

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Section: Influencing the Impact On Fish During Turbine Passage-idamentioning

confidence: 99%

“…Fig. 10.3The electrode setup at the bulb turbine intake (left) and exemplary results for damage rates (right) without IDA (normal) and with IDA (IDA) in dependency of the fish total length (TL) (seeGeiger et al 2020b) …”

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confidence: 99%