EFFICIENCY OPTIMIZATION OF OWC WAVE ENERGY CONVERTERS BY INCIDENT FLOW STEERING

IF 0.8 4区工程技术 Q3 ENGINEERING, MULTIDISCIPLINARY Dyna Pub Date : 2024-01-01 DOI:10.6036/11064

Gustavo Adolfo ESTEBAN ALCALA, Sofia ESTURO ARCORCHA, Iñigo BIDAGUREN DIEGO, Urko Izquierdo Ereño, Iñigo ALBAINA-LOPEZ DE ARMENTIA, Alberto Peña Bandrés, J. M. Blanco Ilzarbe

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Abstract

In recent years, the interest in capturing wave energy has increased notably due to the immense potential available and the need to deepen and diversify the use of renewable energies. Oscillating Water Column (OWC) technology is one of the most technologically developed, with the world's first grid-connected demonstration plant located in Mutriku. However, the efficiency of this technology is still insufficient for its consolidation in the energy mix. Therefore, the present work presents an advance in the increase in the extraction of energy from the incident waves through the installation of a frontal ramp that directs the wave flow towards the vertical chamber of the oscillating column. The improvement achieved will be determined by means of a CFD (Computational Fluid Dynamics) 2D scaled model, which represents the interaction of the structure with different incident wave states. Different geometric options of the ramp are analyzed in comparison with the usual vertical wall option where the phenomenon of pure reflection occurs. This work aims to contribute to improving the efficiency of OWC technology, favoring the use of wave energy as a renewable energy source. Keywords: Oscillating Water Column (OWC), wave energy converter (WEC), Response Amplitude Operator (RAO), Computational Fluid Dynamics (CFD), wave energy

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通过入射流转向优化电波能转换器的效率

近年来，由于波浪能的巨大潜力以及深化和多样化利用可再生能源的需要，人们对捕捉波浪能的兴趣明显增加。振荡水柱（Oscillating Water Column，OWC）技术是技术最发达的技术之一，世界上第一个并网示范电站位于 Mutriku。然而，该技术的效率仍不足以将其纳入能源组合。因此，本研究提出了一项先进技术，即通过安装一个正面斜坡，将波流引向振荡柱的垂直腔体，从而提高从入射波中提取能量的能力。所取得的改进将通过 CFD（计算流体动力学）二维缩放模型来确定，该模型表示了结构与不同入射波状态的相互作用。与发生纯反射现象的通常垂直壁方案相比，对斜面的不同几何方案进行了分析。这项工作旨在提高振荡水柱技术的效率，促进波浪能作为可再生能源的利用：振荡水柱 (OWC)、波浪能转换器 (WEC)、响应振幅算子 (RAO)、计算流体动力学 (CFD)、波浪能

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来源期刊

Dyna 工程技术-工程：综合

CiteScore

1.00

自引率

10.00%

发文量

131

审稿时长

6-12 weeks

期刊介绍： Founded in 1926, DYNA is one of the journal of general engineering most influential and prestigious in the world, as it recognizes Clarivate Analytics. Included in Science Citation Index Expanded, its impact factor is published every year in Journal Citations Reports (JCR). It is the Official Body for Science and Technology of the Spanish Federation of Regional Associations of Engineers (FAIIE). Scientific journal agreed with AEIM (Spanish Association of Mechanical Engineering) In character Scientific-technical, it is the most appropriate way for communication between Multidisciplinary Engineers and for expressing their ideas and experience. DYNA publishes 6 issues per year: January, March, May, July, September and November.

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