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Effects of stator vanes on power coefficients of a zephyr vertical axis wind turbine

机译:定子叶片对和风垂直轴风力发电机功率系数的影响

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摘要

In this paper, numerical and experimental studies are presented to determine the operating performance and power output from a vertical axis wind turbine (VAWT). A k-ε turbulence model is used to perform the transient simulations. The 3-D numerical predictions are based on the time averaged Spalart-Allmaras equations. A case study is performed for varying VAWT stator vane (tab) geometries of a Zephyr vertical axis wind turbine. The mean velocity is used to predict the time averaged variations of the power coefficient and power output. Power coefficients predicted by the numerical models are compared for different turbine geometries. The predictive capabilities of the numerical model are verified by past experimental data, as well as wind tunnel experiments in the current paper, to compare two particular geometric designs. The numerical results examine the turbine's performance at constant and variable rotor velocities. The effects of stator vanes on the turbine's power output are presented and discussed.
机译:在本文中,通过数值和实验研究来确定垂直轴风力涡轮机(VAWT)的运行性能和功率输出。 k-ε湍流模型用于执行瞬态仿真。 3-D数值预测基于时间平均Spalart-Allmaras方程。对Zephyr垂直轴风力涡轮机的VAWT定子叶片(翼片)的几何形状进行了案例研究。平均速度用于预测功率系数和功率输出的时间平均变化。通过数值模型预测的功率系数将针对不同的涡轮机几何形状进行比较。过去的实验数据以及当前的风洞实验验证了数值模型的预测能力,以比较两种特定的几何设计。数值结果检验了涡轮在恒定和可变速度下的性能。介绍并讨论了定子叶片对涡轮功率输出的影响。

著录项

  • 来源
    《Renewable energy》 |2010年第5期|1043-1051|共9页
  • 作者单位

    University of Ontario Institute of Technology, Faculty of Engineering and Applied Science, 2000 Simcoe Street, Oshawa, Ontario, L1H 7K4, Canada;

    University of Ontario Institute of Technology, Faculty of Engineering and Applied Science, 2000 Simcoe Street, Oshawa, Ontario, L1H 7K4, Canada;

    University of Ontario Institute of Technology, Faculty of Engineering and Applied Science, 2000 Simcoe Street, Oshawa, Ontario, L1H 7K4, Canada Dalhousie University, 1360 Barrington Street, Halifax, Nova Scotia, B3J 1Z1, Canada;

    University of Ontario Institute of Technology, Faculty of Engineering and Applied Science, 2000 Simcoe Street, Oshawa, Ontario, L1H 7K4, Canada;

    University of Ontario Institute of Technology, Faculty of Engineering and Applied Science, 2000 Simcoe Street, Oshawa, Ontario, L1H 7K4, Canada;

    University of Ontario Institute of Technology, Faculty of Engineering and Applied Science, 2000 Simcoe Street, Oshawa, Ontario, L1H 7K4, Canada;

    Zephyr Alternate Power Inc., 80 East Humber Drive, King City, Ontario, L7B 1B6, Canada;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    wind energy; vertical axis wind turbine;

    机译:风能;垂直轴风力发电机;
  • 入库时间 2022-08-18 00:26:45

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