Renewable Energy from Natural Flow Phenomena

来自自然流动现象的可再生能源

• 批准号: 2595608
• 金额: --
• 依托单位: Newcastle University
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2021
• 资助国家: 英国
• 起止时间: 2021 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2595608
• 关键词: Renewable; Energy; Natural; Flow; Phenomena

Natural mechanical power from steady water flows in oceans and rivers can provide an alternative and abundant source of cheap and clean energy, in addition to the renewable energy from winds, waves and sun. In this research study, we aim to develop a new innovative renewable energy device based on the concept of vortex-induced vibrations (VIV) in which the fluid flow creates a three-dimensional motion of a bluff body device whose mechanical energy is converted into electricity within a certain range of flow velocities versus system parameters. The proposed research will develop mathematical and experimental models and explore fundamentals of fluids, mechanics of wake turbulence and VIV of cylinder structures with different shapes (circular, square, triangle and asymmetric geometries) in different orientations versus the incoming flow in a wider range of fluid-structure parameters. This research will also focus on the experimental investigations which can be carried out in the laboratory wind-wave-current flume and/or towing tank. The research objectives are (i) to develop an advanced reduced-order fluid-structure interaction model to predict the three-dimensional responses of bluff bodies undergoing VIV and galloping instability, and to predict the coupling with the electromechanical power take-off mechanism for the optimization and reliability analysis of the power output under practical parameters; (ii) to develop an experimental model to investigate the flow-induced VIV and galloping-type responses; (iii) to calibrate and validate the developed mathematical models with new experimental results and those in the literature; (iv) to carry out parametric and optimization studies to identify the appropriate operational ranges of the renewable energy device from natural flow; (v) to disseminate research outcomes through international journals and industry-academia conferences. Key research questions to be answered are: (i) can the performance of the proposed renewable energy harvester from VIV be more efficient than traditional energy harvesters? (ii) how accurate can the mathematical model predict the VIV-galloping responses of circular and non-circular cylinders? (iii) what are possible applications of VIV phenomena to the renewable energy harvesting technology and industry? This project will deliver theoretical and technical contributions to the natural flow renewable energy engineering, and the proposed innovative device could be more efficient and economical when compared to traditional flow energy generating devices. The development of the proposed natural flow energy harvesting device could assist the green energy generation and reducing the cost of renewable power with the minimum environmental impact.

除了风、浪和太阳的可再生能源外，海洋和河流中稳定流动的自然机械动力可以提供一种廉价和丰富的廉价和清洁能源的替代来源。在这项研究中，我们的目标是开发一种基于涡激振动(VIV)概念的新型可再生能源装置，在VIV的概念中，流体流动产生钝体装置的三维运动，其机械能在一定的流速与系统参数之间的范围内被转化为电能。这项研究将建立数学和实验模型，探索不同形状(圆形、方形、三角形和非对称几何)的圆柱体结构在更大范围的流体-结构参数范围内随来流变化的流体基本原理、尾迹湍流力学和涡激涡量。这项研究还将侧重于可在实验室风浪流水槽和/或拖曳水槽中进行的试验研究。研究目标是：(I)发展先进的流固耦合模型，以预测钝体在涡激振动和舞动失稳下的三维响应，并预测与机电动力输出机构的耦合，以优化和分析实用参数下的功率输出；(Ii)开发实验模型，研究流体诱导的涡激和舞动响应；(Iii)利用新的实验结果和文献中的结果对所开发的数学模型进行校准和验证；(Iv)进行参数和优化研究，以确定可再生能源装置从自然流动中合适的运行范围；(5)通过国际期刊和工业界学术会议传播研究成果。需要回答的关键研究问题是：(I)VIV拟议的可再生能源收割机的性能能否比传统能源收割机更高效？(2)该数学模型对圆柱体和非圆柱体的涡激舞动响应的预测精度如何？(3)VIV现象在可再生能源收集技术和工业中有哪些可能的应用？该项目将为自然流动可再生能源工程提供理论和技术贡献，与传统的流动能源发电装置相比，所提出的创新装置可能会更高效、更经济。所提出的自然流动能量收集装置的开发可以帮助绿色能源发电，并在对环境影响最小的情况下降低可再生能源的成本。