Research on Matching Characteristics of Wind Turbine and Generator for Small H-shaped Vertical Axis Wind Turbine

2021 ◽  
Author(s):  
Yong-Chao Xie ◽  
Jin-Yan Shi
Keyword(s):  
Wind Turbine ◽  
Characteristic Curve ◽  
Vertical Axis ◽  
Turbine Rotor ◽  
Vertical Axis Wind Turbine ◽  
Aerodynamic Parameter ◽  
Wind Speeds ◽  
Wheel Model ◽  
Grid Division ◽  
Wind Turbine Rotor

Based on the small H-shaped vertical axis wind wheel model (NACA0016), a CFD wind wheel model was constructed. Based on the principle of moving grid, the grid division of the CFD wind wheel model is completed by using GAMBIT software, and the boundary conditions such as the inlet boundary and the outlet boundary are set reasonably. Then, the turbulence model and the couple algorithm are used to carry out transient simulation calculations, and finally the aerodynamic parameter curves of the two-dimensional CFD wind wheel model are obtained. Based on this, the matching characteristics of the wind turbine and generator of the small H-shaped vertical axis wind turbine are studied. The research results show as follows: when the incoming wind speeds change in range of (2 m/s, 12 m/s), and the power characteristic curve and torque characteristic curve of the generator wind wheel are respectively overlap the best power curve and best torque of the generator, the matching characteristics of the small H-shaped vertical axis wind turbine rotor and generator are optimal, which provides reference for carrying out related research.

scholarly journals Design and Simulation of Vertical Axis Wind Turbine with Naca 0021 Rotor Angle

2021 ◽  
Vol 1 (1) ◽  
Author(s):  
Dieniar N Ramadhani
Keyword(s):  
Wind Energy ◽  
Wind Turbine ◽  
Fossil Fuels ◽  
Vertical Axis ◽  
Turbine Rotor ◽  
Rotor Blades ◽  
Vertical Axis Wind Turbine ◽  
Energy Needs ◽  
Wind Potential ◽  
Wind Turbine Rotor

Much human energy needs are obtained from fossil fuels. This fossil energy is decreasing day by day. So that the utilization of natural energy such as solar energy, water energy and wind energy is being developed. Wind energy is energy that we can find, so it is very easy to use by using a turbine as the driving force. The vertical axis wind turbine is a type of wind turbine that is easier to apply in places where wind potential is not too large. This research was conducted by means of simulation using Qblade v0.963 software by comparing the influence generated from several numbers of wind turbine rotor blades. From the simulation process, it is known that the wind turbine rotor blades with 4 blades are the wind turbines capable of producing the greatest power, which is 75 Watts at a low TSR. So that in the manufacturing process it does not require large costs, but it still has to be built rigid and solidly.

The Design of Vertical Axis Wind Turbine Rotor for Antarctic

2013 ◽  
Vol 12 (4) ◽  
pp. 604-613
Author(s):  
Zhai Yuyi ◽  
Zeng Decai ◽  
Liu Liang ◽  
Tang Wenbin ◽  
Luo Jun
Keyword(s):  
Wind Turbine ◽  
Vertical Axis ◽  
Turbine Rotor ◽  
Vertical Axis Wind Turbine ◽  
Wind Turbine Rotor

scholarly journals The 3D effects of a vertical-axis wind turbine: rotor and wake induction

2020 ◽  
Vol 1618 ◽  
pp. 052040
Author(s):  
D. De Tavernier ◽  
C. Ferreira ◽  
U. Paulsen ◽  
H. Madsen
Keyword(s):  
Wind Turbine ◽  
Vertical Axis ◽  
Turbine Rotor ◽  
Vertical Axis Wind Turbine ◽  
3D Effects ◽  
Wind Turbine Rotor

scholarly journals Numerical evaluation of aerodynamic performances of vertical-axis wind turbine rotor with flow concentrator

2020 ◽  
Author(s):  
Jelena Svorcan ◽  
◽  
Ognjen Peković ◽  
Toni Ivanov ◽  
Miloš Vorkapić ◽  
...  
Keyword(s):  
Wind Turbine ◽  
Three Dimensional ◽  
Vertical Axis ◽  
Turbine Rotor ◽  
Operating Conditions ◽  
Power Coefficient ◽  
Small Scale ◽  
Vertical Axis Wind Turbine ◽  
Flow Simulations ◽  
Wind Speeds

With wind energy extraction constantly increasing, the interest in small-scale urban wind turbines is also expanding. Given that these machines often work in adverse operating conditions (Earth’s boundary layer, vortex trails of surrounding objects, small and changeable wind speeds), additional elements that locally augment wind velocity and facilitate turbine start may be installed. This paper investigates possible benefits of adding an optimized flow concentrator to a vertical-axis wind turbine (VAWT) rotor. Three-dimensional, unsteady, turbulent, incompressible flow simulations of both isolated rotor consisting of three straight blades and a rotor with flow concentrator have been performed in ANSYS FLUENT by finite volume method for several different operational regimes. This type of flow simulations is challenging since flow angles are high, numerous flow phenomena and instabilities are present and the interaction between the blades and detached vortices can be significant. The rotational motion of the blades is solved by the unsteady Sliding Mesh (SM) approach. Flow field is modeled by Unsteady Reynolds Averaged Navier-Stokes (URANS) equations with k-ω SST turbulence model used for closure. Both quantitative and qualitative examinations of the obtained numerical results are presented. In particular, the two computed power coefficient curves are compared and the advantages of installing a flow concentrator are accentuated.

Sign in / Sign up

Export Citation Format

Share Document