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Evaluation of a Model for Predicting the Tidal Velocity in Fjord Entrances

Author

Listed:
  • Emilia Lalander

    (The Swedish Centre for Renewable Electric Energy Conversion, Division of Electricity, UppsalaUniversity, P.O. Box 534, Uppsala SE-751 21, Sweden)

  • Paul Thomassen

    (Team Ashes, Trondheim 7036, Norway)

  • Mats Leijon

    (The Swedish Centre for Renewable Electric Energy Conversion, Division of Electricity, UppsalaUniversity, P.O. Box 534, Uppsala SE-751 21, Sweden)

Abstract

Sufficiently accurate and low-cost estimation of tidal velocities is of importance when evaluating a potential site for a tidal energy farm. Here we suggest and evaluate a model to calculate the tidal velocity in fjord entrances. The model is compared with tidal velocities from Acoustic Doppler Current Profiler (ADCP) measurements in the tidal channel Skarpsundet in Norway. The calculated velocity value from the model corresponded well with the measured cross-sectional average velocity, but was shown to underestimate the velocity in the centre of the channel. The effect of this was quantified by calculating the kinetic energy of the flow for a 14-day period. A numerical simulation using TELEMAC-2D was performed and validated with ADCP measurements. Velocity data from the simulation was used as input for calculating the kinetic energy at various locations in the channel. It was concluded that the model presented here is not accurate enough for assessing the tidal energy resource. However, the simplicity of the model was considered promising in the use of finding sites where further analyses can be made.

Suggested Citation

  • Emilia Lalander & Paul Thomassen & Mats Leijon, 2013. "Evaluation of a Model for Predicting the Tidal Velocity in Fjord Entrances," Energies, MDPI, vol. 6(4), pages 1-21, April.
    • Handle: RePEc:gam:jeners:v:6:y:2013:i:4:p:2031-2051:d:24828
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    References listed on IDEAS

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    1. Blunden, L.S. & Bahaj, A.S., 2006. "Initial evaluation of tidal stream energy resources at Portland Bill, UK," Renewable Energy, Elsevier, vol. 31(2), pages 121-132.
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    3. Carballo, R. & Iglesias, G. & Castro, A., 2009. "Numerical model evaluation of tidal stream energy resources in the Ría de Muros (NW Spain)," Renewable Energy, Elsevier, vol. 34(6), pages 1517-1524.
    4. Grabbe, Mårten & Lalander, Emilia & Lundin, Staffan & Leijon, Mats, 2009. "A review of the tidal current energy resource in Norway," Renewable and Sustainable Energy Reviews, Elsevier, vol. 13(8), pages 1898-1909, October.
    5. Brooks, David A., 2006. "The tidal-stream energy resource in Passamaquoddy–Cobscook Bays: A fresh look at an old story," Renewable Energy, Elsevier, vol. 31(14), pages 2284-2295.
    6. Atwater, Joel F. & Lawrence, Gregory A., 2010. "Power potential of a split tidal channel," Renewable Energy, Elsevier, vol. 35(2), pages 329-332.
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    Cited by:

    1. Silvio Barbarelli & Benedetto Nastasi, 2021. "Tides and Tidal Currents—Guidelines for Site and Energy Resource Assessment," Energies, MDPI, vol. 14(19), pages 1-20, September.
    2. María José Suárez-López & Rodolfo Espina-Valdés & Víctor Manuel Fernández Pacheco & Antonio Navarro Manso & Eduardo Blanco-Marigorta & Eduardo Álvarez-Álvarez, 2019. "A Review of Software Tools to Study the Energetic Potential of Tidal Currents," Energies, MDPI, vol. 12(9), pages 1-19, May.
    3. Widén, Joakim & Carpman, Nicole & Castellucci, Valeria & Lingfors, David & Olauson, Jon & Remouit, Flore & Bergkvist, Mikael & Grabbe, Mårten & Waters, Rafael, 2015. "Variability assessment and forecasting of renewables: A review for solar, wind, wave and tidal resources," Renewable and Sustainable Energy Reviews, Elsevier, vol. 44(C), pages 356-375.

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