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Journal of Zhejiang University SCIENCE A 1998 Vol.-1 No.-1 P.

http://doi.org/10.1631/jzus.A2200292


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


Author(s):  Yang-yang YAN, Jin-tao ZHANG, Jun-ao SHE, Wen-hao LIU, Jiang-hong DENG, Jian-yang ZHU

Affiliation(s):  Institute of Robotics and Intelligent Systems, Wuhan University of Science and Technology, Wuhan, 430081, China; more

Corresponding email(s):   dengjianghong@wust.edu.cn, zhujy@wust.edu.cn

Key Words:  Additional cylinders, Taguchi experimental method, Savonius vertical-axis wind turbine (S-VAWT), Average power coefficient, Wind-induced rotation


Yang-yang YAN, Jin-tao ZHANG, Jun-ao SHE, Wen-hao LIU, Jiang-hong DENG, Jian-yang ZHU. Effect of additional cylinders on power-extraction performance of a Savonius vertical-axis wind turbine[J]. Journal of Zhejiang University Science A, 1998, -1(-1): .

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publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.A2200292"
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%A Yang-yang YAN
%A Jin-tao ZHANG
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A1 - Jun-ao SHE
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A1 - Jiang-hong DENG
A1 - Jian-yang ZHU
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PB - Zhejiang University Press & Springer
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DOI - 10.1631/jzus.A2200292


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 4m/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 8% higher for the S-VAWT with additional cylinders under the same particular conditions.

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