Effect of additional cylinders on power-extraction performance of a Savonius vertical-axis wind turbine

IF 3.3 3区工程技术 Q1 ENGINEERING, MULTIDISCIPLINARY

Journal of Zhejiang University-SCIENCE A Pub Date : 2023-06-01 DOI:10.1631/jzus.A2200292

Yangyang Yan, Jintao Zhang, Junao She, Wenhao Liu, Jianghong Deng, Jianyang Zhu

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引用次数: 0

Abstract

To improve the power-extraction performance of the Savonius vertical-axis wind turbine (S-VAWT), additional cylinders, which are used to control the fluid flow around the wind turbine blade, were introduced into the blade design. In contrast to the traditional numerical method, a mathematical model in the form of a dynamical system was used in this study. A numerical calculation program that could effectively solve the equations of wind-induced rotation of S-VAWT was developed, and combined with the Taguchi experimental method to investigate the influence of additional cylinders on the power-extraction characteristics of the S-VAWT. The results showed that the additional cylinders have a significant impact on the power-extraction performance of the S-VAWT. At 4-m/s wind speed, the average power coefficient of the S-VAWT with additional cylinders is 15% higher than that of the conventional S-VAWT. After construction of the wind turbine prototype and power-extraction tests, the results showed that compared with a conventional S-VAWT, the output power was 29% higher for the S-VAWT with additional cylinders under the same particular conditions.

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附加气缸对Savonius垂直轴风力机抽能性能的影响

为了提高Savonius垂直轴风力机(S-VAWT)的抽能性能，在叶片设计中引入了用于控制叶片周围流体流动的附加气缸。与传统的数值方法不同，本研究采用了动力系统形式的数学模型。开发了能有效求解S-VAWT风致旋转方程的数值计算程序，并结合田口实验方法研究了附加气缸对S-VAWT抽能特性的影响。结果表明，附加气缸对S-VAWT的抽能性能有显著影响。在4 m/s风速下，加装气缸的s - vawt的平均功率系数比常规s - vawt高15%。经过样机的搭建和功率提取试验，结果表明，在相同的特定条件下，与传统的S-VAWT相比，附加气缸的S-VAWT输出功率提高了29%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Zhejiang University-SCIENCE A 工程技术-工程：综合

CiteScore

5.60

自引率

12.50%

发文量

2964

审稿时长

2.9 months

期刊介绍： Journal of Zhejiang University SCIENCE A covers research in Applied Physics, Mechanical and Civil Engineering, Environmental Science and Energy, Materials Science and Chemical Engineering, etc.