Performance study of a Helical Savonius hydrokinetic turbine with a new deflector system design

被引：93

作者：

Mosbahi, Mabrouk ^{[1
,2
]}

Ayadi, Ahmed ^{[1
]}

Chouaibi, Youssef ^{[3
]}

Driss, Zied ^{[1
]}

Tucciarelli, Tullio ^{[4
]}

机构：

[1] Univ Sfax, Natl Sch Engineers Sfax ENIS, Lab Electromech Syst LASEM, BP 1173,Km 3-5 Soukra, Sfax 3038, Tunisia

[2] Univ Tunis, Higher Natl Engn Sch Tunis ENSIT, Ave Taha Hussein Montfleury, Tunis 1008, Tunisia

[3] Higher Inst Technol Studies Sidi Bouzid, Sidi Bouzid, Tunisia

[4] Univ Palermo, Dept Civil Environm Aerosp & Mat Engn DICAM, Viale Sci, I-90128 Palermo, Italy

来源：

ENERGY CONVERSION AND MANAGEMENT | 2019年 / 194卷

关键词：

Helical Savonius rotor; Deflector system; Rotor performance; Power coefficient; Torque coefficient; Validation; GOVERNING SYSTEM; TURBULENT-FLOW; STABILITY; EMISSIONS; ENERGY; ANGLE;

D O I：

10.1016/j.enconman.2019.04.080

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The use of renewable energy sources has becoming a necessity to generate electricity. Helical Savonius rotors have been preferred for small-scale hydropower generation. Numerous studies were carried out to improve the performance of the Helical Savonius rotor which has not been fully explored. In this paper, an experimental study was carried out to evaluate the performance of a Helical Savonius water rotor in an irrigation channel. In order to enhance the performance of the studied water rotor, a new deflector system design was proposed. Different configurations of the proposed deflector system were tested numerically using the commercial software ANSYS FLUENT 17.0. Without a deflector system, the maximum power coefficient is found to be equal to 0.125 at tip-speed ratio of 0.7. Using the optimal configuration of the new deflector system, the maximum power coefficient reaches 0.14. The utilization of this new design system is predicted to contribute towards a more efficient use of flows in rivers and channels for electricity production in rural areas.

引用

页码：55 / 74

页数：20

共 26 条

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