Analysis and optimization of power extraction from a concentrated flow savonius turbine

分布式小型可再生能源生产系统，如安装在建筑物上的风力涡轮机，有可能在电力生产中发挥重要作用。太阳能正在引领这场革命，但需要很大的足迹。风力涡轮机是太阳能的补充，可以在多风地区提高发电效率。然而，分布式小型风力涡轮机的名声一直不好，因为它们没有适当地安装在没有风的地方，或者安装在它们没有设计的建筑物屋顶上。在这个项目中，一个风力涡轮机封闭在扩散器，专门为建筑物的屋顶设计，进行了改进。目前该汽轮机具有较好的抽能效率，但由于对其运行参数的研究较少，其抽能效率受到限制。在目前的研究项目中，将处理两项任务。在第一个任务中，将根据不同的风向和关闭导叶来分析和优化扩压器的进气口。叶片几何形状是任何风力发电机的关键参数。在第二项任务中，将开发一种优化方法来研究不同的叶片几何形状，并确定将导致最高能量提取的叶片特性。这项工作将由Concordia大学的Paraschivoiu教授的研究小组和工业合作伙伴Le Groupe LML合作进行。

Distributed small scale renewable energy production systems such as building mounted wind turbines have the potential to play a significant role in electricity production. Solar energy is leading this revolution but requires a large footprint. Wind turbines are complementary to solar and can lead to more efficient electricity production in windy areas. Nevertheless, distributed small scale wind turbines have suffered in reputation because of inadequate placement in areas where there is no wind or on building roofs for which they were not designed for. In this project, a wind turbine enclosed in a diffuser, specifically designed for the roof of a building, is improved. Currently this turbine has a good power extraction efficiency but its effectiveness is limited as only a few operating parameters have been studied. In the current research project, two tasks will be tackled. In the first task, the diffuser intake will be analysed and optimized with respect to varying wind directions and closing vane guides. The blade geometry is a key parameter of any wind turbine. In the second task, an optimization approach will be developed to investigate different blade geometries and identify the blade characteristics that will lead to the highest energy extraction. This work will be performed as a collaboration between Prof. Paraschivoiu's research group at Concordia University and the industrial partner Le Groupe LML.