STUDY ON HYDRODYNAMIC CHARACTERISTICS OF MULTI-PONTOON FLOATING BREAKWATER UTILIZED AS WAVE ENERGY CONVERTER

Yi Xi; Shi Hongda; Cao Feifei; Wang Zhilin; Han Meng; Chen Jiajun

doi:10.19912/j.0254-0096.tynxb.2024-2076

PDF(1169 KB)

Acta Energiae Solaris Sinica ›› 2026, Vol. 47 ›› Issue (3) : 488-495. DOI: 10.19912/j.0254-0096.tynxb.2024-2076

STUDY ON HYDRODYNAMIC CHARACTERISTICS OF MULTI-PONTOON FLOATING BREAKWATER UTILIZED AS WAVE ENERGY CONVERTER

Yi Xi¹, Shi Hongda^1-3, Cao Feifei^1-3, Wang Zhilin¹, Han Meng¹, Chen Jiajun¹

Author information +

History +

Abstract

Based on the concept of space sharing and cost allocation for the integration of wave energy converter and floating breakwaters, a three-pontoon floating breakwater-WEC integrated system is proposed. A numerical model is established using computational fluid dynamics methods to study the performance of the multi-pontoon floating breakwater, and the effects of PTO damping and draft on the energy capture and wave attenuation performance are investigated. The results show that the split-module design of the breakwater has an obvious effect on improving the energy acquisition of the integrated system with the same total volume, and the staggered configuration of the resonance frequency of the front and middle pontoons significantly broaden the effective frequency band. The design of the front pontoon with a triangular shape at the bottom can further improve the energy capture level. The reasonable selection of the PTO damping coefficient and the increase of the draft of the rear pontoon can improve the performance of the integrated system in terms of wave dissipation.

Key words

wave energy conversion / floating breakwaters / conversion efficiency / wave transmission / wave attenuation / buoys

Cite this article

EndNote

Ris (Procite)

Bibtex

Download Citations

Yi Xi, Shi Hongda, Cao Feifei, Wang Zhilin, Han Meng, Chen Jiajun. STUDY ON HYDRODYNAMIC CHARACTERISTICS OF MULTI-PONTOON FLOATING BREAKWATER UTILIZED AS WAVE ENERGY CONVERTER[J]. Acta Energiae Solaris Sinica. 2026, 47(3): 488-495 https://doi.org/10.19912/j.0254-0096.tynxb.2024-2076

References

[1] 刘艳娇, 彭爱武, 黄铭冶. 海洋波浪能发电装置PTO系统研究进展[J]. 太阳能学报, 2023, 44(12): 381-392.
LIU Y J, PENG A W, HUANG M Y.Research progress of PTO system for wave energy converter[J]. Acta energiae solaris sinica, 2023, 44(12): 381-392.
[2] 曹雪玲, 高涛, 王文胜, 等. 单浮筒振荡浮子式波浪能装置的动力特性分析[J]. 太阳能学报, 2022, 43(11): 364-368.
CAO X L, GAO T, WANG W S, et al.Analysis of dynamic characteristics of single oscillating-buoy float-type wave energy device[J]. Acta energiae solaris sinica, 2022, 43(11): 364-368.
[3] ZHAO X L, NING D Z, ZOU Q P, et al.Hybrid floating breakwater-WEC system: a review[J]. Ocean engineering, 2019, 186: 106126.
[4] MUSTAPA M A, YAAKOB O B, AHMED Y M, et al.Wave energy device and breakwater integration: a review[J]. Renewable and sustainable energy reviews, 2017, 77: 43-58.
[5] WILLIAMS A N, ABUL-AZM A G. Dual pontoon floating breakwater[J]. Ocean engineering, 1997, 24(5): 465-478.
[6] NING D Z, ZHAO X L, GÖTEMAN M, et al. Hydrodynamic performance of a pile-restrained WEC-type floating breakwater: an experimental study[J]. Renewable energy, 2016, 95: 531-541.
[7] MADHI F, SINCLAIR M E, YEUNG R W.The “Berkeley Wedge”: an asymmetrical energy-capturing floating breakwater of high performance[J]. Marine systems & ocean technology, 2014, 9(1): 5-16.
[8] ZHANG H M, ZHOU B Z, VOGEL C, et al.Hydrodynamic performance of a floating breakwater as an oscillating-buoy type wave energy converter[J]. Applied energy, 2020, 257: 113996.
[9] ZHAO X L, NING D Z.Experimental investigation of breakwater-type WEC composed of both stationary and floating pontoons[J]. Energy, 2018, 155: 226-233.
[10] 林楚森, 周斌珍, 张恒铭, 等. 兼具防波与发电的集成系统能量特性试验研究[J]. 太阳能学报, 2023, 44(10): 467-472.
LIN C S, ZHOU B Z, ZHANG H M, et al.Experimental study on energy characteristics of integrated system with both wave attenuation and power[J]. Acta energiae solaris sinica, 2023, 44(10): 467-472.
[11] ZHAO X L, XUE R, GENG J, et al.Analytical investigation on the hydrodynamic performance of a multi-pontoon breakwater-WEC system[J]. Ocean engineering, 2021, 220: 108394.
[12] GUO B M, WANG R Q, NING D Z, et al.Hydrodynamic performance of a novel WEC-breakwater integrated system consisting of triple dual-freedom pontoons[J]. Energy, 2020, 209: 118463.
[13] PENG W, ZHANG Y N, ZOU Q P, et al.Effect of varying PTO on a triple floater wave energy converter-breakwater hybrid system: an experimental study[J]. Renewable energy, 2024, 224: 120100.
[14] 孙科, 解光慈, 周斌珍. 波能装置浮子选型及水动力性能分析[J]. 哈尔滨工程大学学报, 2021, 42(1): 8-14.
SUN K, XIE G C, ZHOU B Z.Type selection and hydrodynamic performance analysis of wave energy converters[J]. Journal of Harbin Engineering University, 2021, 42(1): 8-14.
[15] GODA Y, SUZUKI Y.Estimation of incident and reflected waves in random wave experiments[C]//Coastal Engineering 1976. Honolulu, Hawaii, USA, 1977: 828-845.
[16] ZHANG H M, ZHOU B Z, VOGEL C, et al.Hydrodynamic performance of a dual-floater hybrid system combining a floating breakwater and an oscillating-buoy type wave energy converter[J]. Applied energy, 2020, 259: 114212.