Hydrodynamic Investigation on the Cantilevering Oscillating Buoy Type WEC Integrated into a Floating Dock

Chang Wan; Can Yang; Yuxiang Niu; Zhibin Hao; Lars Johanning

doi:10.1007/978-981-99-7409-2_83

Hydrodynamic Investigation on the Cantilevering Oscillating Buoy Type WEC Integrated into a Floating Dock

Chang Wan
, Can Yang^*
, Yuxiang Niu
, Zhibin Hao
, Lars Johanning

^*Corresponding author for this work

Harbin Engineering University
College of Shipbuilding Engineering
College of Engineering
University of Exeter

Research output: Chapter in Book/Report/Conference proceeding › Conference proceedings published in a book › peer-review

Abstract

The hybrid system consisting of an Oscillating Buoy and a floating dock provides a promising solution for wave energy conversion and power supply of marine vehicles. In this paper, a floating dock station (FDS) combined with a cantilevering oscillating buoy (COB) was proposed. The COB is hinged to the floating dock and helps to generate the electric power by relative movement between the COB and FDS. Based on the potential flow theory, a three-dimensional model was set up in the AQWA software to investigate the hydrodynamic characteristics of this proposed hybrid system. In this paper, the effects of wave conditions and geometric properties of the FDS-COB device were studied and optimized to improve the power capture performance of the hybrid system. The results show that the device achieves a high wave energy conversion efficiency of 44.3% due to the pitch and roll motions of the main floating body, compared with the traditional fixed dock platform. Furthermore, the effects of the cantilever angle and float length of the COB were studied to optimize certain geometrical parameters. The property of the efficiency mitigation with the higher cantilever angle and the smaller cantilever length should be avoided while designing such a system.

Original language	English
Title of host publication	Proceedings of the 11th International Conference on Asian and Pacific Coasts - APAC 2023
Editors	Yoshimitsu Tajima, Shin-ichi Aoki, Shinji Sato
Publisher	Springer Science and Business Media Deutschland GmbH
Pages	909-920
Number of pages	12
ISBN (Print)	9789819974085
DOIs	https://doi.org/10.1007/978-981-99-7409-2_83
Publication status	Published - 2024
Externally published	Yes
Event	11th International Conference on Asian and Pacific Coasts, APAC 2023 - Kyoto, Japan Duration: 14 Nov 2023 → 17 Nov 2023

Publication series

Name	Lecture Notes in Civil Engineering
Volume	394 LNCE
ISSN (Print)	2366-2557
ISSN (Electronic)	2366-2565

Conference

Conference	11th International Conference on Asian and Pacific Coasts, APAC 2023
Country/Territory	Japan
City	Kyoto
Period	14/11/23 → 17/11/23

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

ASJC Scopus subject areas

Civil and Structural Engineering

Keywords

Cantilevering oscillating buoy
Energy conversion efficiency
Floating dock
Hybrid system
Potential flow theory
Wave energy

Access to Document

10.1007/978-981-99-7409-2_83

Cite this

Wan, C., Yang, C., Niu, Y., Hao, Z., & Johanning, L. (2024). Hydrodynamic Investigation on the Cantilevering Oscillating Buoy Type WEC Integrated into a Floating Dock. In Y. Tajima, S. Aoki, & S. Sato (Eds.), Proceedings of the 11th International Conference on Asian and Pacific Coasts - APAC 2023 (pp. 909-920). (Lecture Notes in Civil Engineering; Vol. 394 LNCE). Springer Science and Business Media Deutschland GmbH. https://doi.org/10.1007/978-981-99-7409-2_83

Wan, Chang ; Yang, Can ; Niu, Yuxiang et al. / Hydrodynamic Investigation on the Cantilevering Oscillating Buoy Type WEC Integrated into a Floating Dock. Proceedings of the 11th International Conference on Asian and Pacific Coasts - APAC 2023. editor / Yoshimitsu Tajima ; Shin-ichi Aoki ; Shinji Sato. Springer Science and Business Media Deutschland GmbH, 2024. pp. 909-920 (Lecture Notes in Civil Engineering).

@inproceedings{dfa1a467a46b4e64a9da797d24318240,

title = "Hydrodynamic Investigation on the Cantilevering Oscillating Buoy Type WEC Integrated into a Floating Dock",

abstract = "The hybrid system consisting of an Oscillating Buoy and a floating dock provides a promising solution for wave energy conversion and power supply of marine vehicles. In this paper, a floating dock station (FDS) combined with a cantilevering oscillating buoy (COB) was proposed. The COB is hinged to the floating dock and helps to generate the electric power by relative movement between the COB and FDS. Based on the potential flow theory, a three-dimensional model was set up in the AQWA software to investigate the hydrodynamic characteristics of this proposed hybrid system. In this paper, the effects of wave conditions and geometric properties of the FDS-COB device were studied and optimized to improve the power capture performance of the hybrid system. The results show that the device achieves a high wave energy conversion efficiency of 44.3\% due to the pitch and roll motions of the main floating body, compared with the traditional fixed dock platform. Furthermore, the effects of the cantilever angle and float length of the COB were studied to optimize certain geometrical parameters. The property of the efficiency mitigation with the higher cantilever angle and the smaller cantilever length should be avoided while designing such a system.",

keywords = "Cantilevering oscillating buoy, Energy conversion efficiency, Floating dock, Hybrid system, Potential flow theory, Wave energy",

author = "Chang Wan and Can Yang and Yuxiang Niu and Zhibin Hao and Lars Johanning",

note = "Publisher Copyright: {\textcopyright} The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2024.; 11th International Conference on Asian and Pacific Coasts, APAC 2023 ; Conference date: 14-11-2023 Through 17-11-2023",

year = "2024",

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series = "Lecture Notes in Civil Engineering",

publisher = "Springer Science and Business Media Deutschland GmbH",

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Wan, C, Yang, C, Niu, Y, Hao, Z & Johanning, L 2024, Hydrodynamic Investigation on the Cantilevering Oscillating Buoy Type WEC Integrated into a Floating Dock. in Y Tajima, S Aoki & S Sato (eds), Proceedings of the 11th International Conference on Asian and Pacific Coasts - APAC 2023. Lecture Notes in Civil Engineering, vol. 394 LNCE, Springer Science and Business Media Deutschland GmbH, pp. 909-920, 11th International Conference on Asian and Pacific Coasts, APAC 2023, Kyoto, Japan, 14/11/23. https://doi.org/10.1007/978-981-99-7409-2_83

Hydrodynamic Investigation on the Cantilevering Oscillating Buoy Type WEC Integrated into a Floating Dock. / Wan, Chang; Yang, Can; Niu, Yuxiang et al.
Proceedings of the 11th International Conference on Asian and Pacific Coasts - APAC 2023. ed. / Yoshimitsu Tajima; Shin-ichi Aoki; Shinji Sato. Springer Science and Business Media Deutschland GmbH, 2024. p. 909-920 (Lecture Notes in Civil Engineering; Vol. 394 LNCE).

Research output: Chapter in Book/Report/Conference proceeding › Conference proceedings published in a book › peer-review

TY - GEN

T1 - Hydrodynamic Investigation on the Cantilevering Oscillating Buoy Type WEC Integrated into a Floating Dock

AU - Wan, Chang

AU - Yang, Can

AU - Niu, Yuxiang

AU - Hao, Zhibin

AU - Johanning, Lars

N1 - Publisher Copyright: © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2024.

PY - 2024

Y1 - 2024

N2 - The hybrid system consisting of an Oscillating Buoy and a floating dock provides a promising solution for wave energy conversion and power supply of marine vehicles. In this paper, a floating dock station (FDS) combined with a cantilevering oscillating buoy (COB) was proposed. The COB is hinged to the floating dock and helps to generate the electric power by relative movement between the COB and FDS. Based on the potential flow theory, a three-dimensional model was set up in the AQWA software to investigate the hydrodynamic characteristics of this proposed hybrid system. In this paper, the effects of wave conditions and geometric properties of the FDS-COB device were studied and optimized to improve the power capture performance of the hybrid system. The results show that the device achieves a high wave energy conversion efficiency of 44.3% due to the pitch and roll motions of the main floating body, compared with the traditional fixed dock platform. Furthermore, the effects of the cantilever angle and float length of the COB were studied to optimize certain geometrical parameters. The property of the efficiency mitigation with the higher cantilever angle and the smaller cantilever length should be avoided while designing such a system.

AB - The hybrid system consisting of an Oscillating Buoy and a floating dock provides a promising solution for wave energy conversion and power supply of marine vehicles. In this paper, a floating dock station (FDS) combined with a cantilevering oscillating buoy (COB) was proposed. The COB is hinged to the floating dock and helps to generate the electric power by relative movement between the COB and FDS. Based on the potential flow theory, a three-dimensional model was set up in the AQWA software to investigate the hydrodynamic characteristics of this proposed hybrid system. In this paper, the effects of wave conditions and geometric properties of the FDS-COB device were studied and optimized to improve the power capture performance of the hybrid system. The results show that the device achieves a high wave energy conversion efficiency of 44.3% due to the pitch and roll motions of the main floating body, compared with the traditional fixed dock platform. Furthermore, the effects of the cantilever angle and float length of the COB were studied to optimize certain geometrical parameters. The property of the efficiency mitigation with the higher cantilever angle and the smaller cantilever length should be avoided while designing such a system.

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KW - Energy conversion efficiency

KW - Floating dock

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KW - Potential flow theory

KW - Wave energy

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DO - 10.1007/978-981-99-7409-2_83

M3 - Conference proceedings published in a book

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SN - 9789819974085

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ER -

Wan C, Yang C, Niu Y, Hao Z, Johanning L. Hydrodynamic Investigation on the Cantilevering Oscillating Buoy Type WEC Integrated into a Floating Dock. In Tajima Y, Aoki S, Sato S, editors, Proceedings of the 11th International Conference on Asian and Pacific Coasts - APAC 2023. Springer Science and Business Media Deutschland GmbH. 2024. p. 909-920. (Lecture Notes in Civil Engineering). doi: 10.1007/978-981-99-7409-2_83

Hydrodynamic Investigation on the Cantilevering Oscillating Buoy Type WEC Integrated into a Floating Dock

Abstract

Publication series

Conference

UN SDGs

ASJC Scopus subject areas

Keywords

Access to Document

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