Effects of Air Chamber and Curtain Wall Geometries on Energy Conversion Performance in a Fixed Oscillating Water Column-Type Wave Energy Converter
Effects of Air Chamber and Curtain Wall Geometries on Energy Conversion Performance in a Fixed Oscillating Water Column-Type Wave Energy Converter
复制标题
固定振荡水柱式波浪能转换器中气室和幕墙几何形状对能量转换性能的影响
DOI：
10.1088/1742-6596/2217/1/012069
复制
发表时间：
2022
期刊：
影响因子：
--
通讯作者：
S. Nagata and M. Takao
中科院分区：
文献类型：
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作者：
T. Murakami;Y. Imai;S. Nagata and M. Takao
一种振荡水柱式波浪能量抽取器，由空气腔、空气透平和发电机组成。能量转换过程由空气腔内的一次转换和空气涡轮的二次转换组成。即使在恶劣的天气条件下，振荡水柱式波浪能量抽取器也被认为是安全的。在社会应用中，需要一种能够考虑水面运动、空气腔内压力波动、空气涡轮和发电机旋转等因素的设计方法。在此，作者利用配备了脉冲水轮机和发电机的模型振荡水柱进行了二维波浪水池试验，以获得进行这种设计方法所需的实验数据。在实验中，研究了风室和幕墙的几何形状对规则波条件下能量转换性能的影响。结果表明，幕墙的几何形状和墙角的旋涡脱落对一次转换效率有影响。
An oscillating water column-type wave energy extractor is composed of an air chamber, an air turbine and a generator. The energy conversion process is compounded of the primary conversion in an air chamber and the secondary conversion of an air turbine. The oscillating water column-type wave energy extractor is considered to be safe even under dirty weather conditions. For societal implementation, there is a need to make a design method which can consider the water surface motion, the pressure fluctuation in an air chamber, the rotations of an air turbine and a generator. At here, the authors carried out the 2-dimensional wave tank tests using the model oscillating water column equipped with the impulse turbine and a generator to obtain the experimental data needed to make this design method. In the experiments, the effects of the air chamber and curtain wall geometries on energy conversion performance in regular wave conditions were investigated. As the results, it is noticed that the geometry of the curtain wall and the vortex shedding from the corners of curtain wall affect the primary conversion efficiency.