Wind turbines are commonly used to produce clean energy. However, many of us don’t know that there are mainly two types of wind turbines, the horizontal and the vertical wind turbine. Horizontal wind turbine are more common and have been built at various places across the world.
This horizontal turbine is one that has a large shaft with the propellers based on top, as compared to the vertical wind turbines design. The main difference between the horizontal and vertical designs is the rotation of the blades.
In the commonly used horizontal form, the blades are on the top, spinning round in the air, whereas the vertical design has the generator situated at the base of the tower, and has the blades wrapped around the shaft.
The horizontal turbine spins round in a propeller type motion, in contrast to the vertical wind turbine design, which spins round in a circle in a cylinder type design.
The main disadvantage of the vertical turbines, which makes them uncommon too is that they require guide ropes to hold the shaft in place. This in turn requires more land and space as the ropes are required to be run from the tip of the shaft, and need to clear the blades.
But the main advantage of this design is that the vertical construction is quieter than the horizontal design. Horizontal turbines create more noise through their blades, yet the advantage is that the shaft can support the propeller at the tip and there is no need to install guide ropes.
Because of the high initial cost of installation, developers often go for the horizontal wind turbine design to keep costs down.
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