Abstract
In this paper, the efficiency of the vertical-axial wind power plant at various wind speeds depending on the angle of attack of the rotor blades was investigated. The object of the investigation was a three-bladed Darrieus rotor. During the modeling we used the viscous gas flow model with averaging of turbulent characteristics (Reynolds-averaged Navier–Stokes equations for an incompressible fluid. These investigations would allow us to develop new principles for constructing vertical-axial wind turbines with a variable angle of attack of the blades in order to increase the energy efficiency of vertical-axis wind turbine.
Highlights
INTRODUCTIONIn the world operated fleet of wind power plants, horizontal-axial or, so-called propeller type installations make up more than 90%
At present, in the world operated fleet of wind power plants, horizontal-axial or, so-called propeller type installations make up more than 90%.The lag in the development of vertical-axis wind turbines (VAWT), despite their advantages, as absence of aerodynamic noise, starting at low wind speeds and independence from wind direction, is caused by several reasons
The main disadvantage of vertical wind generators was mistakenly considered that for them it is impossible to obtain a ratio of the maximum linear velocity of the working bodies to wind speed greater than 1, which necessitated the use of multiplier systems or more massive low-speed generators [1]
Summary
In the world operated fleet of wind power plants, horizontal-axial or, so-called propeller type installations make up more than 90%. The main disadvantage of vertical wind generators was mistakenly considered that for them it is impossible to obtain a ratio of the maximum linear velocity of the working bodies (blades) to wind speed greater than 1 (for horizontal-axis propeller wind turbines this ratio is more than 5: 1), which necessitated the use of multiplier systems or more massive low-speed generators [1]. There are exist such types of vertical-axial wind turbines: the Savonius rotor, the Darrieus turbine and the Darrieus H-rotor (Fig. 1). This paper is dedicated to investigations the efficiency of VAWT at different wind speeds, depending on the angle of attack of the rotor blades
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
