VAWT



The design was made using solidworks and calculations were done using python.A vertical axis wind turbine (VAWT) has blades mounted on the top of the main shaft structure, rather than in the front like an aircraft rotor. The generator is usually placed at the tower base. Used less often than their horizontal counterparts, VAWTs are more practical in residential areas.

VAWT Advantages

These turbines have fewer parts than those that orient the rotary mechanism and blades horizontally. That means fewer components to wear out and break down. Also, the supporting strength of the tower doesn’t need to be as much, because the gearbox and generator are near the ground. Parts for controlling pitch and yaw aren’t needed either.

The turbine doesn’t have to be facing the right wind direction either. In a vertical system, air flowing from any direction or speed can rotate the blades. Therefore, the system can be used to generate power in gusty winds and when they’re blowing steadily.

Disadvantages of VAWTs

Not all of the blades produce torque at the same time, which limits the efficiency of vertical systems in producing energy. Other blades are simply pushed along. There is also more drag on the blades when they rotate. Although a turbine can work in gusty winds, that is not always the case; the low starting torque and dynamic stability problems can limit functionality in conditions the turbine wasn’t specifically designed for.

Calculations:

Material Selection:

Material

Tensile strength (in Mpa)

Weight (Kg)

FRP

34.5-104                      

1.558

FRE

55-130                      

1.7

GFRP

483–4580                     

1.771

AFRP

1720–3620                 

2.054

CFRP

600–3920                 

2.125

BFRP

600–1500               

2.691

Steel

483–690                     

11.119


Power output:

Potential wind power

1066.46    W  

Power output of wind turbine

275.329    W  

Torque required

17.537      N-m

Lift force acting on rotor

107.378    N  

Drag force acting on rotor

63.326      N  

Stress acting on the rotor

3.005        Mpa






Project Link





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