Investigations on the Effect of Radius Rotor in Combined Darrieus-Savonius Wind Turbine

IF 0.9 Q4 ENGINEERING, MECHANICAL

International Journal of Rotating Machinery Pub Date : 2018-03-01 DOI:10.1155/2018/3568542

Kaprawi Sahim, Dyos Santoso, D. Puspitasari

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引用次数: 35

Abstract

Renewable sources of energy, abundant in availability, are needed to be exploited with adaptable technology. For wind energy, the wind turbine is very well adapted to generate electricity. Among the different typologies, small scale Vertical Axis Wind Turbines (VAWT) present the greatest potential for off-grid power generation at low wind speeds. The combined Darrieus-Savonius wind turbine is intended to enhance the performance of the Darrieus rotor in low speed. In combined turbine, the Savonius buckets are always attached at the rotor shaft and the Darrieus blades are installed far from the shaft which have arm attaching to the shaft. A simple combined turbine offers two rotors on the same shaft. The combined turbine that consists of two Darrieus and Savonius blades was tested in wind tunnel test section with constant wind velocity and its performance was assessed in terms of power and torque coefficients. The study gives the effect of the radius ratio between Savonius and Darrieus rotor on the performance of the turbine. The results show that there is a significant influence on the turbine performance if the radius ratio was changed.

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转子半径对达-萨联合风力机的影响研究

可再生能源资源丰富，需要利用适应性强的技术加以开发。对于风能，风力涡轮机非常适合发电。在不同的类型中，小型垂直轴风力涡轮机（VAWT）在低风速下提供了最大的离网发电潜力。Darrieus-Savonius组合式风力涡轮机旨在提高Darrieus转子在低速下的性能。在联合涡轮机中，Savonius叶片总是连接在转子轴上，Darrieus叶片安装在远离轴的位置，轴上有连接到轴上的臂。一个简单的组合式涡轮机在同一轴上提供两个转子。由两个Darrieus和Savonius叶片组成的联合涡轮机在恒定风速的风洞试验段中进行了测试，并根据功率和扭矩系数对其性能进行了评估。该研究给出了Savonius和Darrieus转子之间的半径比对涡轮机性能的影响。结果表明，半径比的变化对涡轮性能有显著影响。

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

International Journal of Rotating Machinery ENGINEERING, MECHANICAL-

CiteScore

2.40

自引率

0.00%

发文量

审稿时长

25 weeks

期刊介绍： This comprehensive journal provides the latest information on rotating machines and machine elements. This technology has become essential to many industrial processes, including gas-, steam-, water-, or wind-driven turbines at power generation systems, and in food processing, automobile and airplane engines, heating, refrigeration, air conditioning, and chemical or petroleum refining. In spite of the importance of rotating machinery and the huge financial resources involved in the industry, only a few publications distribute research and development information on the prime movers. This journal is the first source to combine the technology, as it applies to all of these specialties, previously scattered throughout literature.