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

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