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논문 기본 정보

자료유형
학술저널
저자정보
Toru Shigemitsu (Tokushima University) Junichiro Fukutomi (Tokushima University) Masaaki Toyohara (Tokushima University)
저널정보
한국유체기계학회 International Journal of Fluid Machinery and Systems International Journal of Fluid Machinery and Systems Vol.9 No.2
발행연도
2016.6
수록면
169 - 174 (6page)

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초록· 키워드

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A cross-flow wind turbine has a high torque coefficient at a low tip speed ratio. Therefore, it is a good candidate for use as a self-starting turbine. Furthermore, it has low noise and excellent stability; therefore, it has attracted attention from the viewpoint of applications as a small wind turbine for an urban district. However, its maximum power coefficient is extremely low (10 %) as compared to that of other small wind turbines. In order to improve the performance and flow condition of the cross-flow rotor, the symmetrical casing with a nozzle and a diffuser are proposed and the experimental research with the symmetrical casing is conducted. The maximum power coefficient is obtained as Cpmax = 0.17 in the case with the casing and Cpmax=0.098 in the case without the casing. In the present study, the power characteristics of the cross-flow rotor and those of the symmetrical casing with the nozzle and diffuser are investigated. Then, the performance and internal flow patterns of the cross-flow wind turbine with the symmetrical casings are clarified. After that, the effect of the side boards set on the symmetrical casing is discussed on the basis of the analysis results.

목차

Abstract
1. Introduction
2. Experimental Equipment and Measurement Method
3. Numerical Analysis Conditions
4. Performance and Flow Condition of Cross-flow Wind Turbine with Symmetrical Casing
5. Conclusion
References

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