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Shape design and numerical analysis on a 1 MW tidal current turbine for the south-western coast of Korea

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  • Singh, Patrick Mark
  • Choi, Young-Do

Abstract

The study concentrates on the shape design and numerical analysis of a 1 MW horizontal axis tidal current turbine (HATCT), which can be applied near the southwest regions of Korea. On the basis of actual tidal current conditions of south-western region of Korea, configuration design of 1 MW class turbine rotor blade is carried out by blade element momentum theory (BEMT). The hydrodynamic performance including the lift and drag forces, is conducted with the variation of the angle of attack using an open source code of X-Foil. The optimized blade geometry is used for Computational Fluid Dynamics (CFD) analysis with hexahedral numerical grids. This study focuses on developing a new hydrofoil and designing a blade with relatively shorter chord length in contrast to a typical TCT blade. Therefore, after a thorough study of two common hydrofoils, (S814 and DU-91-W2-250, which show good performance for rough conditions), a new hydrofoil, MNU26, is developed. The new hydrofoil has a 26% thickness that can be applied throughout the blade length, giving good structural strength. Power coefficient, pressure and velocity distributions are investigated according to Tip Speed Ratio by CFD analysis. As cavitation analysis is also an important part of the study, it is investigated for all the three hydrofoils. Due to the shorter chord length of the new turbine blade in contrast to a typical TCT blade design, a Fluid Structure Interaction (FSI) analysis is also done. Concrete conclusions have been made after comparing the three hydrofoils, considering their performance, efficiency, occurrence of cavitation and structural feasibility.

Suggested Citation

  • Singh, Patrick Mark & Choi, Young-Do, 2014. "Shape design and numerical analysis on a 1 MW tidal current turbine for the south-western coast of Korea," Renewable Energy, Elsevier, vol. 68(C), pages 485-493.
    • Handle: RePEc:eee:renene:v:68:y:2014:i:c:p:485-493
    DOI: 10.1016/j.renene.2014.02.032
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    References listed on IDEAS

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    1. Nicholls-Lee, R.F. & Turnock, S.R. & Boyd, S.W., 2013. "Application of bend-twist coupled blades for horizontal axis tidal turbines," Renewable Energy, Elsevier, vol. 50(C), pages 541-550.
    2. Do-Seong Byun & Deirdre E. Hart & Woo-Jin Jeong, 2013. "Tidal Current Energy Resources off the South and West Coasts of Korea: Preliminary Observation-Derived Estimates," Energies, MDPI, vol. 6(2), pages 1-13, January.
    3. Esteban, Miguel & Leary, David, 2012. "Current developments and future prospects of offshore wind and ocean energy," Applied Energy, Elsevier, vol. 90(1), pages 128-136.
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    1. Gu, Ya-jing & Lin, Yong-gang & Xu, Quan-kun & Liu, Hong-wei & Li, Wei, 2018. "Blade-pitch system for tidal current turbines with reduced variation pitch control strategy based on tidal current velocity preview," Renewable Energy, Elsevier, vol. 115(C), pages 149-158.
    2. Ramin Alipour & Roozbeh Alipour & Seyed Saeid Rahimian Koloor & Michal Petrů & Seyed Alireza Ghazanfari, 2020. "On the Performance of Small-Scale Horizontal Axis Tidal Current Turbines. Part 1: One Single Turbine," Sustainability, MDPI, vol. 12(15), pages 1-25, July.
    3. Silva, Paulo Augusto Strobel Freitas & Shinomiya, Léo Daiki & de Oliveira, Taygoara Felamingo & Vaz, Jerson Rogério Pinheiro & Amarante Mesquita, André Luiz & Brasil Junior, Antonio Cesar Pinho, 2017. "Analysis of cavitation for the optimized design of hydrokinetic turbines using BEM," Applied Energy, Elsevier, vol. 185(P2), pages 1281-1291.
    4. Li, Wei & Zhou, Hongbin & Liu, Hongwei & Lin, Yonggang & Xu, Quankun, 2016. "Review on the blade design technologies of tidal current turbine," Renewable and Sustainable Energy Reviews, Elsevier, vol. 63(C), pages 414-422.
    5. Kim, Seung-Jun & Singh, Patrick Mark & Hyun, Beom-Soo & Lee, Young-Ho & Choi, Young-Do, 2017. "A study on the floating bridge type horizontal axis tidal current turbine for energy independent islands in Korea," Renewable Energy, Elsevier, vol. 112(C), pages 35-43.

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