COMPARATIVE STUDY OF H-DARRIEUS SELF-STARTING VERTICAL AXIS TIDAL TURBINE WITH FIXED-PITCH AND ACTIVE-PITCH

Yu Bangting; Wu Yonghu; Zhang Yiping; Yu Guangxin; Zhu Lining; Wang Xiaoyong

doi:10.19912/j.0254-0096.tynxb.2023-1064

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Acta Energiae Solaris Sinica ›› 2024, Vol. 45 ›› Issue (11) : 553-560. DOI: 10.19912/j.0254-0096.tynxb.2023-1064

COMPARATIVE STUDY OF H-DARRIEUS SELF-STARTING VERTICAL AXIS TIDAL TURBINE WITH FIXED-PITCH AND ACTIVE-PITCH

Yu Bangting¹, Wu Yonghu¹, Zhang Yiping¹, Yu Guangxin¹, Zhu Lining², Wang Xiaoyong²

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Abstract

In this paper, the CFD software ANSYS Fluent 16.0 is used to simulate a straight-bladed H-Darrieus turbine with preset fixed pitch angle of 4°,8°,12°, -4°,-8° and -12°, respectively, as well as active pitched blades in sinusoidal mode and half-sinusoidal mode, with the pitch amplitude of 4°,8° and 12°, with a focus on comparing the energy efficiency of the turbine under the two pitch strategies. The results show that compared with the sinusoidal-pitch turbine, the fixed-pitch turbine has more advantages in practical applications; the half-sinusoidal-pitch turbine has a significant improvement in energy efficiency; and the application of the fixed-pitch strategy should be emphasized in practical.

Key words

tidal energy / H-Darrieus turbine / numerical simulation / self-starting / fixed pitch strategy / active pitch strategy

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Yu Bangting, Wu Yonghu, Zhang Yiping, Yu Guangxin, Zhu Lining, Wang Xiaoyong. COMPARATIVE STUDY OF H-DARRIEUS SELF-STARTING VERTICAL AXIS TIDAL TURBINE WITH FIXED-PITCH AND ACTIVE-PITCH[J]. Acta Energiae Solaris Sinica. 2024, 45(11): 553-560 https://doi.org/10.19912/j.0254-0096.tynxb.2023-1064

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