This paper presents the experimental results of the vertical axis wind turbine (VAWT), especially the Savonius rotors, which are developed for application on top of buildings due to lower wind speed compared with remote areas. The VAWT is regarded as the most suitable elegant candidate to be integrated with buildings for its relatively low operating noise, easy maintenance, and easy access. This study explored the interaction effect of the overlap ratio, phase-shift, and stage on the performance of the Savonius rotors in details. The results show that appropriate choice of the phase-shift angle according to the overlap ratio can not only increase the power coefficient of the Savonius rotors but also eliminate the negative static torque and smooth the variation of the static torque coefficient. Moreover, the performance of the two-stage rotors indicates that the two-stage rotor is the best candidate for this type of wind turbines or as a starting assistant for the Darrieus rotors.
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February 2012
Research Papers
Influence of Phase-Shift and Overlap Ratio on Savonius Wind Turbine’s Performance
Chen Jian,
Chen Jian
Renewable Energy Research Group (RERG) Department of Building Services Engineering,
e-mail: bechenj@polyu.edu.hk
The Hong Kong Polytechnic University
, Hong Kong, China
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Jan Kumbernuss,
Jan Kumbernuss
Renewable Energy Research Group (RERG) Department of Building Services Engineering,
The Hong Kong Polytechnic University
, Hong Kong, China
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Zhang Linhua,
Zhang Linhua
School of Thermal Energy Engineering,
Shandong Jianzhu University
, Jinan, China
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Lu Lin,
Lu Lin
Renewable Energy Research Group (RERG) Department of Building Services Engineering,
The Hong Kong Polytechnic University
, Hong Kong, China
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Yang Hongxing
Yang Hongxing
Renewable Energy Research Group (RERG) Department of Building Services Engineering,
The Hong Kong Polytechnic University
, Hong Kong, China
Search for other works by this author on:
Chen Jian
Renewable Energy Research Group (RERG) Department of Building Services Engineering,
The Hong Kong Polytechnic University
, Hong Kong, China
e-mail: bechenj@polyu.edu.hk
Jan Kumbernuss
Renewable Energy Research Group (RERG) Department of Building Services Engineering,
The Hong Kong Polytechnic University
, Hong Kong, China
Zhang Linhua
School of Thermal Energy Engineering,
Shandong Jianzhu University
, Jinan, China
Lu Lin
Renewable Energy Research Group (RERG) Department of Building Services Engineering,
The Hong Kong Polytechnic University
, Hong Kong, China
Yang Hongxing
Renewable Energy Research Group (RERG) Department of Building Services Engineering,
The Hong Kong Polytechnic University
, Hong Kong, China
J. Sol. Energy Eng. Feb 2012, 134(1): 011016 (9 pages)
Published Online: December 1, 2011
Article history
Received:
February 17, 2011
Revised:
August 20, 2011
Online:
December 1, 2011
Published:
December 1, 2011
Citation
Jian, C., Kumbernuss, J., Linhua, Z., Lin, L., and Hongxing, Y. (December 1, 2011). "Influence of Phase-Shift and Overlap Ratio on Savonius Wind Turbine’s Performance." ASME. J. Sol. Energy Eng. February 2012; 134(1): 011016. https://doi.org/10.1115/1.4004980
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