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Study on Performance of Savonius Rotor Type Wave Energy Converter Used in Conjunction with Floating Breakwater

China Ocean Engineering volume 35, pages 578–587 (2021)Cite this article

Abstract

In the present study, the performance characteristics of a Savonius rotor type wave energy converter used in conjunction with a conventional double-buoy floating breakwater is investigated using physical model studies. The Savonius rotor type converter is suspended under the double-buoy floating breakwater to achieve wave attenuation while generating electricity, thereby enhancing the overall wave-elimination effect of the combination. The Savonius rotor is tested with different water submergence depths, and a reasonable relative submergence depth is determined within the scope of the research parameters. The hydrodynamics and energy capture performance of the combined breakwater with four different sizes of Savonius rotor under different wave conditions are studied, and the transmission coefficient of the experimental device is analyzed. The results show that when the optimal relative submergence depth is 0.65D, where D is the impeller diameter, there is a correspondence between the optimal performance of Savonius rotor with different rotor sizes and the wave period and wave height. The optimal energy capture efficiency of the wave energy converter reaches 17%–20.5%, and the transmission coefficient is reduced by 35%–45% compared with the conventional double-buoy breakwater.

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Authors and Affiliations

  1. School of Mechanical and Electrical Engineering, Jiangxi University of Science and Technology, Ganzhou, 341000, China

    Zuo-shi Liu, Kai Gong & Yan-chen Huang

  2. Ningbo Institute of Technology, Zhejiang University, Ningbo, 315100, China

    Kai Gong, Fang-ping Huang & Yan-chen Huang

  3. School of Mechanical Engineering, Zhejiang University, Hangzhou, 310027, China

    Fang-ping Huang

Authors
  1. Zuo-shi Liu
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  2. Kai Gong
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  3. Fang-ping Huang
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  4. Yan-chen Huang
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Corresponding author

Correspondence to Fang-ping Huang.

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Foundation item

This work was financially supported by the National Natural Science Foundation of China (Grant No. 51605431) and the Major Science and Technology Projects of Ningbo (Grant Nos. 2015C110015 and 2017C110005).

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Liu, Zs., Gong, K., Huang, Fp. et al. Study on Performance of Savonius Rotor Type Wave Energy Converter Used in Conjunction with Floating Breakwater. China Ocean Eng 35, 578–587 (2021). https://doi.org/10.1007/s13344-021-0052-x

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  • DOI: https://doi.org/10.1007/s13344-021-0052-x

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