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The drag-type vertical axis wind turbines (VAWTs) have advantages of simple structure, self-starting at low wind speed and low cost, but they show low wind energy conversion efficiencies. A novel vertical axis wind turbine is proposed aiming to improve the disadvantage of the traditional wind turbines based on bionic principle in this paper. The structure of the novel vertical axis wind rotor is designed...
Traditional Savonius wind turbine has advantages such as simple structure, fast start-up, etc., however, it also has significant disadvantages of low wind energy utilization efficiency. A novel wind turbine is proposed by improving structure of Savonius wind turbine in order to increase the low wind energy utilization efficiency. To compare performance of the novel wind turbine and the Savonius wind...
Three-hastate vertical axis wind wheel (THVAWW), with higher wind energy utilization, is a new wind power installation. An airflow-collecting cavity is introduced to improve the efficiency of the wheel further based on the invention patent technology of THVAWW. Computational fluid dynamics (CFD) theories and some modeling tools such as Solid works, ICEM and Fluent are used to grasp the dynamic flow-field...
Three-hastate vertical axis wind wheel, a novel type rotor with high efficiency, can be able to actualize wind energy conversion by the lumen twice driven principle, based on the theoretical analysis of the rotor's geometric structure in this research. The computational fluid dynamic analyses, which detect the aerodynamic characteristic of the rotor further, are also described by using the multiple...
Wind energy is a clear, safe and renewable green energy resource. Because it can be supplied inexhaustibly and always be used availably, it is exploited by countries all over the world and has gradually become a new energy type. According to the wind energy characteristics and the hydrodynamics theory, the vertical axial wind turbine of three hastate windmill, which can convey the intra-cavity wind...
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