当前位置: X-MOL 学术Ocean Eng. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Response of a self-powered offshore floating support structure with an OWC for powering a LIDAR device
Ocean Engineering ( IF 5 ) Pub Date : 2020-12-30 , DOI: 10.1016/j.oceaneng.2020.108366
Nuno Mathias , Rebeca Nunes Marini , Tiago Morais , Pedro Luís , Mário Vaz , Paulo Rosa-Santos

To give an effective response to the increasing demand to characterise wind availability and intensity for the installation of future offshore wind farms, SPAR buoy OWCs with LIDAR present a clear benefit, due to their stability, mechanical and operational simplicity and lower cost, when compared to wind measuring towers, serving as an alternative to the latter, mainly for deep water.

This paper proposes a compromise between a stable SPAR buoy for wind measurements (average speed, gusts, etc.) and a sufficiently capable energy generating OWC device for long-term self-sustainability. Key parameters such as mass distribution and geometry were accounted for, in order to achieve both outcomes.

The performance of an oceanic SPAR buoy OWC was analysed numerically and experimentally tested at 1:16 scale, under regular and irregular sea states, in order to quantify its hydrodynamic behaviour and capability to generate electrical energy, using two different PTO configurations. Depending on the sea-states, different PTO configurations result in better performance. For higher significant wave heights, the 39% porosity membrane used as a PTO performed better from a power perspective, whereas for lower significant wave height, the 70% porosity membrane presented better results. Low energy consumption wind measuring equipment may benefit from this application.



中文翻译:

带有OWC的自供电海上浮动支撑结构对LIDAR设备供电的响应

为了有效应对日益增长的需求,以表征未来海上风力发电场的可用风能和强度,与LIDAR相比,带有LIDAR的SPAR浮标OWC具有明显的优势,因为它们的稳定性,机械和操作简便性以及更低的成本测风塔,替代测风塔,主要用于深水。

本文提出了一种稳定的SPAR浮标(用于风速测量)(平均速度,阵风等)和功能强大的可产生能量的OWC设备之间的折衷方案,以实现长期的自我可持续性。为了实现两个结果,都考虑了关键参数,例如质量分布和几何形状。

在两种规则的和不规则的海况下,以1:16的比例对海洋SPAR浮标OWC的性能进行了数值分析和实验测试,以便使用两种不同的PTO配置量化其水动力行为和产生电能的能力。根据海况,不同的PTO配置会带来更好的性能。对于较高的显着波高,从功率的角度来看,用作PTO的39%孔隙度膜的性能更好,而对于较低的显着波高,70%孔隙率的膜呈现更好的结果。低能耗测风设备可能会受益于此应用。

更新日期:2020-12-30
down
wechat
bug