Make A Wind Turbine

Posts Tagged ‘Wind Turbine Blade Design’

Wind turbines are one of the oldes known devices used for generating power. Although the basic idea behind wind generators has always remained more or less the same, wind turbine blades in particular have changed drastically over time, from the easily broken windmill blades of yore to the sleek blades of today. Today, wind turbines produce much more power from much less wind than ever before, which is largely due to these advancements.

Early wind turbine blades were essentially nothing more than large mats made from reeds. While they functioned reasonably well under the right conditions, they broke easily. If the winds got too high, these blades would often be broken.

Cloth sails were the next step in the development of wind turbine blades. In combination with an improved vertical axis style design, many early windmills utilized this type of blade in order to use wind energy for grain processing purposes.

The next major type of blade to be introduced was the wood blade, which was often used in conjunction with a horizontal axis configuration. This development reflected those seen in the world of aviation, as improving rotors often had these characteristics. The crucial advantage of wooden blades over previous models was that they could be both lighter and stronger, and therefore they were much more appropriate for generating energy in a wider variety of conditions.

Electricity was generated from wind turbines for the first time thanks to these designs. The first wind turbines of this type were fairly small in size, but it wasn’t long before they were scaled up and used in commerical settings.

From this period on, wind turbine blade development branched into two distinct paths: horizontal axis blades, and vertical axis blades. The following horizontal axis blades would differ in their shape and pitch, materials, and the number of blades used per rotor.

In most cases, 3-blade designs are the norm for horizontal axis wind turbines, as they have the best balance of stability and rotor speed. In most modern turbines, composite blades are used, which have great strength and flexibility in addition to being lightweight, which makes them perfect for both residential and industrial uses. Composite blades give wind turbines the ability to spin faster and generate more energy as well as pick up low-speed winds, making them significantly more efficient.

Furthermore, vertical axis wind turbines have seen a number of improvements which have made them appropriate for a wide variety of applications. Vertical axis wind turbines, too, can provide serious power, as they are usually engineered to take advantage of either wind drag or wind lift.

Vertical axis turbines can harness the power of the wind regardless of its direction. In this respect, they offer a more constant supply of power than the majority of horizontal axis turbines. Their capacity to produce power even without the need for a tower makes them especially appropriate for residential use.

To learn about the pros and cons of solar energy, check out Advantages and Disadvantages of Wind Power.

For the best guide to building your own wind turbines complete with step-by-step videos, For a step-by-step guide on building your wind turbines, check out Best DIY Solar and Wind Guides.

For another guide to building a diy wind turbine, visit Homemade Wind Turbine.

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