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From tulip-shaped vertical wind vibrators to portable microturbines: the latest generation of wind turbines is ready to change everything
You've probably seen those traditional giant wind turbines dotting the landscape, but did you know that there is a whole world of wind turbines innovative and unprecedented out there? The concept of harnessing the power of the wind is not new. In fact, the first documented wind-powered machine was a musical organ created by Greek inventor Hero of Alexandria around 100 AD.
This organ was powered by a wind wheel, considered the precursor of the modern wind turbine. Over the centuries, wind energy technology has evolved, helping farmers in Persia and China increase food production. From these humble beginnings, wind energy has come a long way, according to the Ecotechnology channel video.
Modern wind turbines
The wind turbines we know today are enormous structures that can reach more than 250 meters in height. These giants provide energy for thousands of homes and in this game, bigger really is better. But why bother with small wind turbines? They are like small cars compared to big trucks, with different functions.
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Small wind turbines serve a different purpose: they are for individual use. Whether you are a businessman, a farmer or a homeowner, if you have a suitable location you can generate your own electricity. Small wind turbines have a rotor sweep of less than 200 m², and what's more, the possibilities are almost endless. Rotor sweep is the area swept by the rotating blades of a wind turbine and determines how much wind energy can be captured.
Types of small wind turbines
There are different types of small wind turbines, typically divided into two categories: horizontal and vertical.
Horizontal turbines
- The rotor axis is aligned with the wind direction and must be actively oriented.
- Usually, are more efficient and offer a better return about investment.
- They have two or three blades that spin like a propeller, similar to their larger counterparts.
Disadvantages: they can be noisy, require more space and can pose a threat to birds.
Vertical turbines
- The rotor axis is perpendicular to the wind direction and does not need to be oriented.
- They have several blades arranged in a spiral or helix shape, giving them a distinctive appearance.
Advantages: They are less noisy, easier to maintain and take up less space.
Disadvantages: They are less efficient and more expensive than horizontal turbines.
Innovations in small wind turbines
Innovation is happening rapidly in the world of small wind turbines. In addition to traditional horizontal and vertical turbines, a third category of omnidirectional turbines is emerging, designed to harness wind from all directions.
- Omnidirectional Turbines: It has a vertical axis and a conical shape that captures more wind energy, flexible poles that sway with the wind and generate electricity through piezoelectricity.
- Bladeless Turbines and Kite Turbines: Bladeless turbines use aerodynamic induction to generate electricity from the wind, making them less noisy and more bird-friendly.
Very good!