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Transformation of the Downstream Riverbed and Its Impact on the Operating Conditions of Hydroelectric Power Plants and Other Hydraulic Structures

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Power Technology and Engineering Aims and scope

The transformation of riverbeds and reduction in water levels downstream of a number of hydroelectric power plants (HPP) are discussed. The influence of this process on the operating conditions and stability of hydraulic structures, conditions for dissipation of discharge energy, and headwater-tailwater connection downstream of the spillway structures is assessed. The effect of decrease in the tailwater level on the hydropower performance of HPPs is shown: increase of navigational discharges into the tailwater and reduction of the share of HPPs in peak power generation, while increasing annual power generation. The influence of an increase in the draft head of hydraulic turbines caused by a decrease in the tailwater level on their operating efficiency is considered.

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References

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Authors and Affiliations

  1. JSC “Vedeneev VNIIG”, St. Petersburg, Russia

    A. B. Veksler

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Translated from Gidrotekhnicheskoe Stroitel’svo, No. 9, September 2021, pp. 6 – 17. https://doi.org/10.34831/EP.2021.52.70.006

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Veksler, A.B. Transformation of the Downstream Riverbed and Its Impact on the Operating Conditions of Hydroelectric Power Plants and Other Hydraulic Structures. Power Technol Eng 55, 801–809 (2022). https://doi.org/10.1007/s10749-022-01435-2

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  • DOI: https://doi.org/10.1007/s10749-022-01435-2

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