Dynamic Responses of a 1:5-Scale Ocean Current Energy Converter

Authors

  • Hedy National Taiwan University, Department of Engineering Science and Ocean Engineering https://orcid.org/0000-0002-6697-4946
  • Yu-Chi Hung National Cheng Kung University, Department of Hydraulic and Ocean Engineering
  • Ray-Yeng Yang National Cheng Kung University, Department of Hydraulic and Ocean Engineering
  • Tien-En Hou National Taiwan University, Department of Engineering Science and Ocean Engineering
  • Ling-Ji Mu National Taiwan University, Department of Engineering Science and Ocean Engineering
  • Shen-Wei Huang National Taiwan University, Department of Engineering Science and Ocean Engineering
  • Jenhwa Guo National Taiwan University, Department of Engineering Science and Ocean Engineering
  • Shueei-Muh Lin Kun Shan University, Department of Mechanical Engineering

DOI:

https://doi.org/10.36688/ewtec-2023-150

Keywords:

coupled dynamics, Dyneema mooring, marine current energy converter, mooring analysis, numerical simulation, physical testing

Abstract

The objective of this study is to numerically evaluate the dynamic responses of the Floating Kuroshio Turbine (FKT)—an ocean current energy converter—installed for field testing. In autumn 2022, the FKT was installed and tested at a 1:5 scale in the open sea area, located 1 kilometre off the LiuQiu Island coast, Taiwan. Because of unfavourable site conditions, the mooring and power cable systems for the FKT had to be customarily designed for the testing conditions. An investigation of the dynamic motions and structural responses of the mooring and cable systems was performed prior to physical testing to ensure the integrity of the testing campaign. The numerical analyses were performed using the commercial software DNV SIMA, where the prospect of the surfaced FKT and the mooring entanglement were evaluated and compared. This paper details the modelling process and the evaluation of the dynamics of the entire FKT system. Finally, the challenges and potential improvements for numerical assessments of a testing-oriented offshore marine energy system are identified and discussed.

Author Biographies

Hedy, National Taiwan University, Department of Engineering Science and Ocean Engineering

Shun-Han Yang (Hedy) is an assistant professor on Engineering Science and Ocean Engineering at National Taiwan University since September 2021. She received her Ph.D. in Naval Architecture from Chalmers University of Technology, Sweden, in 2018. Her research focuses on developing numerical methodology to assess the structural integrity and long-term performance of offshore structures. Her research topics includes design of marine energy systems, mooring and power cable integrity analysis, and global response analysis of floating marine energy systems and ship structures, with 20+ scientific publications.

Yu-Chi Hung, National Cheng Kung University, Department of Hydraulic and Ocean Engineering

Y.-C. Hung was at the Department of Hydraulic and Ocean Engineering at the National Cheng Kung University, Tainan, Taiwan and is now at Sinotech Engineering Consultants Inc, Taipei, Taiwan.

Ray-Yeng Yang, National Cheng Kung University, Department of Hydraulic and Ocean Engineering

Professor Ray-Yeng Yang is with the Department of Hydraulic and Ocean Engineering at the National Cheng Kung University, Tainan, Taiwan.

Tien-En Hou, National Taiwan University, Department of Engineering Science and Ocean Engineering

T.-E. Hou is with the Department of Engineering Science and Ocean Engineering at the National Taiwan University, Taipei, Taiwan.

Ling-Ji Mu, National Taiwan University, Department of Engineering Science and Ocean Engineering

Lin-Ji Mu is with the Department of Engineering Science and Ocean Engineering at the National Taiwan University, Taipei, Taiwan.

Shen-Wei Huang, National Taiwan University, Department of Engineering Science and Ocean Engineering

Shen-Wwi Huang is with the Department of Engineering Science and Ocean Engineering at the National Taiwan University, Taipei, Taiwan.

Jenhwa Guo, National Taiwan University, Department of Engineering Science and Ocean Engineering

Professor Jenhwa Guo is with the Department of Engineering Science and Ocean Engineering at the National Taiwan University, Taipei, Taiwan.

Shueei-Muh Lin, Kun Shan University, Department of Mechanical Engineering

Professor Shueei-Muh Lin is with the Department of Mechanical Engineering at the Kun Shan University, Tainan, Taiwan.

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Published

2023-09-02

How to Cite

[1]
S.-H. Yang, “Dynamic Responses of a 1:5-Scale Ocean Current Energy Converter”, Proc. EWTEC, vol. 15, Sep. 2023.

Issue

Vol. 15 (2023): Proceedings of the European Wave and Tidal Energy Conference

Track

Tidal device development and testing

Categories

License

Some rights reserved. Please see https://ewtec.org/proceedings/ for more details.