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Hydraulic impacts of hydrokinetic devices

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  • Kartezhnikova, Maria
  • Ravens, Thomas M.

Abstract

A simple technique to estimate the far-field hydraulic impacts associated with the deployment of hydrokinetic devices is introduced. The technique involves representing hydrokinetic devices with an enhanced Manning (bottom) roughness coefficient. The enhanced Manning roughness is found to be a function of the Manning roughness, slope, and water depth of the natural channel as well as device efficiency, blockage ratio, and density of device deployment. The technique is developed assuming simple open channel flow geometry. However, once the effective bottom roughness is determined, it can be used to determine the hydraulic impact of arbitrary device configurations and arbitrary flow situations.

Suggested Citation

  • Kartezhnikova, Maria & Ravens, Thomas M., 2014. "Hydraulic impacts of hydrokinetic devices," Renewable Energy, Elsevier, vol. 66(C), pages 425-432.
  • Handle: RePEc:eee:renene:v:66:y:2014:i:c:p:425-432
    DOI: 10.1016/j.renene.2013.12.034
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    References listed on IDEAS

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    1. Bai, Guanghui & Li, Jun & Fan, Pengfei & Li, Guojun, 2013. "Numerical investigations of the effects of different arrays on power extractions of horizontal axis tidal current turbines," Renewable Energy, Elsevier, vol. 53(C), pages 180-186.
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    3. Segura, E. & Morales, R. & Somolinos, J.A., 2018. "A strategic analysis of tidal current energy conversion systems in the European Union," Applied Energy, Elsevier, vol. 212(C), pages 527-551.
    4. Brown, Erik & Sulaeman, Samer & Quispe-Abad, Raul & Müller, Norbert & Moran, Emilio, 2023. "Safe passage for fish: The case for in-stream turbines," Renewable and Sustainable Energy Reviews, Elsevier, vol. 173(C).
    5. Laws, Nicholas D. & Epps, Brenden P., 2016. "Hydrokinetic energy conversion: Technology, research, and outlook," Renewable and Sustainable Energy Reviews, Elsevier, vol. 57(C), pages 1245-1259.
    6. Brown, Eloise J. & King, Amanda L. & Duvoy, Paul X. & Trochim, Erin & Kasper, Jeremy L. & Wilson, Melany L. & Ravens, Thomas M., 2023. "Site suitability analysis of hydrokinetic river energy resources at community microgrids on the Kuskokwim River, Alaska," Renewable Energy, Elsevier, vol. 217(C).
    7. Niebuhr, C.M. & Schmidt, S. & van Dijk, M. & Smith, L. & Neary, V.S., 2022. "A review of commercial numerical modelling approaches for axial hydrokinetic turbine wake analysis in channel flow," Renewable and Sustainable Energy Reviews, Elsevier, vol. 158(C).

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