The synergy between the backward bent duct buoy and the floating platform

IF 9 1区工程技术 Q1 ENERGY & FUELS

Renewable Energy Pub Date : 2025-06-04 DOI:10.1016/j.renene.2025.123637

Yikuan He , Yongliang Zhang

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引用次数: 0

Abstract

The backward bent duct buoy (BBDB) oscillating water column (OWC) wave energy conversion (WEC) is proposed to be co-deployed with the floating platform (FP) to enhance wave energy absorption efficiency and improve FP stability. A coupled analytical model of the freely moving BBDB and FP is established, and the motion response, wave run-up, and energy absorption efficiency are obtained using the structural motion equation and the OWC device characteristic equation. After that, the effects of the BBDB dimensions and the distance between the BBDB and the FP on the energy absorption efficiency and the response amplitude operators (RAOs) of the FP are analyzed. The results demonstrate that the presence of the FP significantly enhances the energy absorption efficiency of the BBDB. Moreover, deploying the BBDB upstream effectively mitigates the motion response of the FP. There are two prominent energy capture intervals, and the energy absorption efficiency can exceed 0.6 at 3.4–5.4 s and 5.8–8.3 s when the distance is 0.35 times the BBDB length. Meanwhile, this distance can also broaden the valley between 4 s and 5.5 s and reduce the wave run-up and RAOs of the FP after the period exceeds 8 s.

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后弯管浮筒与浮平台的协同作用

提出将后弯管浮标（BBDB）振荡水柱（OWC）波浪能转换（WEC）与浮动平台（FP）协同部署，以提高波浪能吸收效率，提高FP稳定性。建立了自由运动BBDB和FP的耦合分析模型，利用结构运动方程和OWC器件特性方程，得到了自由运动BBDB和FP的运动响应、波浪爬升和能量吸收效率。然后，分析了BBDB尺寸和BBDB与FP之间的距离对FP的能量吸收效率和响应幅度算子（RAOs）的影响。结果表明，FP的存在显著提高了BBDB的能量吸收效率。此外，在上游部署BBDB有效地减轻了FP的运动响应。存在两个突出的能量捕获间隔，当距离为BBDB长度的0.35倍时，3.4-5.4 s和5.8-8.3 s的能量吸收效率均可超过0.6。同时，这段距离也能使4 s ~ 5.5 s之间的波谷变宽，降低周期超过8 s后FP的波速和RAOs。

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来源期刊

Renewable Energy 工程技术-能源与燃料

CiteScore

18.40

自引率

9.20%

发文量

1955

审稿时长

6.6 months

期刊介绍： Renewable Energy journal is dedicated to advancing knowledge and disseminating insights on various topics and technologies within renewable energy systems and components. Our mission is to support researchers, engineers, economists, manufacturers, NGOs, associations, and societies in staying updated on new developments in their respective fields and applying alternative energy solutions to current practices. As an international, multidisciplinary journal in renewable energy engineering and research, we strive to be a premier peer-reviewed platform and a trusted source of original research and reviews in the field of renewable energy. Join us in our endeavor to drive innovation and progress in sustainable energy solutions.