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Experimental verification of a floating ocean-current turbine with a single rotor for use in Kuroshio currents

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  • Shirasawa, Katsutoshi
  • Tokunaga, Kohei
  • Iwashita, Hidetsugu
  • Shintake, Tsumoru

Abstract

Ocean currents have excellent potential as future renewable energy resources. In order to harness the kinetic energy of marine currents, we propose a new ocean-current turbine. In general, ocean currents have sufficiently large cross sections. Thus, the turbines are moored to the seabed and function like kites in the water flow. In the future, turbines will be installed approximately 100 m deep to avoid the influence of surface waves; this is especially important during typhoons. To operate such turbines in the middle layer of a marine current, it is necessary to cancel the resulting rotor torque. Therefore, our turbine is designed with a float at its top and a counterweight at its bottom. Owing to buoyancy and gravity, the turbine maintains a stable position. We describe towing experiments carried out to confirm the float and counterweight configuration and show that the results verify hydrostatic stability and electric power generation for the proposed turbine.

Suggested Citation

  • Shirasawa, Katsutoshi & Tokunaga, Kohei & Iwashita, Hidetsugu & Shintake, Tsumoru, 2016. "Experimental verification of a floating ocean-current turbine with a single rotor for use in Kuroshio currents," Renewable Energy, Elsevier, vol. 91(C), pages 189-195.
    • Handle: RePEc:eee:renene:v:91:y:2016:i:c:p:189-195
    DOI: 10.1016/j.renene.2016.01.035
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    References listed on IDEAS

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    1. Bahaj, AbuBakr S., 2011. "Generating electricity from the oceans," Renewable and Sustainable Energy Reviews, Elsevier, vol. 15(7), pages 3399-3416, September.
    2. Chen, Falin, 2010. "Kuroshio power plant development plan," Renewable and Sustainable Energy Reviews, Elsevier, vol. 14(9), pages 2655-2668, December.
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    4. Chang, Yu-Chia & Chu, Peter C. & Tseng, Ruo-Shan, 2015. "Site selection of ocean current power generation from drifter measurements," Renewable Energy, Elsevier, vol. 80(C), pages 737-745.
    5. Finkl, Charles W. & Charlier, Roger, 2009. "Electrical power generation from ocean currents in the Straits of Florida: Some environmental considerations," Renewable and Sustainable Energy Reviews, Elsevier, vol. 13(9), pages 2597-2604, December.
    6. Akimoto, Hiromichi & Tanaka, Kenji & Uzawa, Kiyoshi, 2013. "A conceptual study of floating axis water current turbine for low-cost energy capturing from river, tide and ocean currents," Renewable Energy, Elsevier, vol. 57(C), pages 283-288.
    7. Bahaj, A.S. & Batten, W.M.J. & McCann, G., 2007. "Experimental verifications of numerical predictions for the hydrodynamic performance of horizontal axis marine current turbines," Renewable Energy, Elsevier, vol. 32(15), pages 2479-2490.
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    Cited by:

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    2. Kirinus, Eduardo de Paula & Oleinik, Phelype Haron & Costi, Juliana & Marques, Wiliam Correa, 2018. "Long-term simulations for ocean energy off the Brazilian coast," Energy, Elsevier, vol. 163(C), pages 364-382.
    3. Milad Shadman & Corbiniano Silva & Daiane Faller & Zhijia Wu & Luiz Paulo de Freitas Assad & Luiz Landau & Carlos Levi & Segen F. Estefen, 2019. "Ocean Renewable Energy Potential, Technology, and Deployments: A Case Study of Brazil," Energies, MDPI, vol. 12(19), pages 1-37, September.
    4. Katsutoshi Shirasawa & Junichiro Minami & Tsumoru Shintake, 2017. "Scale-Model Experiments for the Surface Wave Influence on a Submerged Floating Ocean-Current Turbine," Energies, MDPI, vol. 10(5), pages 1-12, May.
    5. Li, Ming & Luo, Haojie & Zhou, Shijie & Senthil Kumar, Gokula Manikandan & Guo, Xinman & Law, Tin Chung & Cao, Sunliang, 2022. "State-of-the-art review of the flexibility and feasibility of emerging offshore and coastal ocean energy technologies in East and Southeast Asia," Renewable and Sustainable Energy Reviews, Elsevier, vol. 162(C).
    6. Luis A. Garcia-Reyes & Aurelio Beltrán-Telles & Francisco Bañuelos-Ruedas & Manuel Reta-Hernández & Juan M. Ramírez-Arredondo & Rodolfo Silva-Casarín, 2022. "Level-Shift PWM Control of a Single-Phase Full H-Bridge Inverter for Grid Interconnection, Applied to Ocean Current Power Generation," Energies, MDPI, vol. 15(5), pages 1-26, February.

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