Thursday, December 1, 2011

Science Behind Windmill Design - Learn, and Build Your Own Windmill


Although aerodynamics constitutes the major design of a windmill, the design can still change, based upon several different measures. Those variations can include a number of things, such as: blades (both number and type), the tower height, distance from tower to ground, and the type of generator used. A typical windmill is made up of several base parts, which include-starting from the ground-the base, generator, shaft, tower, and the blades.

The base of the windmill is the structure that sits on the ground. The base of a windmill can be small in diameter or extremely large-it all depends on the overall height of the windmill and the breadth of the blades. The shaft of the windmill is the part of the structure that holds the blades to the tower. This part of the windmill structure is also responsible for the smooth rotation and movement of the blades. At the top, sits the tower and blades. The tower is the piece that holds the blades and is an amazingly strong part of the structure, as it must be able to withstand the pressure of high winds, all while continuing to hold the blades stable. The blades are the part of the windmill that actually turns. A windmill can have any number of blades, but they usually range from three to 20. The generator is the most important part of the windmill. This is the part of the windmill that generates electricity from the mechanical energy of the rotating blades. The generator is also programmed to store power for use in the future. Although most windmills are designed with these parts, the actual working design of the windmill depends on the many factors of the wind.

Wind speed is one of the major factors in designing a windmill. For instance, the design and build of a windmill that stands in large, open acreage is going to differ than the design of a windmill which is flanked by a grove of trees. In an open area, the wind speed is going to be much greater than an area where the wind is slowed down by a natural structure. These factors are studied and measured by specialists in this field. They use a special device to measure wind speed, called an anemometer. With the use of this tool, the specialists are able to determine the proper type of windmill to erect in the area.

The wind direction is also used as a tool to determine where to stand the windmill, as well as the distance of wind activity from the ground. Following in the same thought process as wind speed, the wind direction will help determine the best type and build of windmill to place in a certain area. When building the windmill, the height of the tower will be dependent upon the active wind height. So, back to the hypothetical grove of trees: The wind will rush over the top of the trees, and then dip down. The determined height of the tower will be calculated by where the strongest wind hits.

Windmills, as aesthetically pleasing as they are, are designed based on several different factors. Each of these factors plays a role in ensuring that the windmill delivers the most natural power as is possible.




If you're interested in learning more about the design and function of windmills, visit www.SolarPowerNow.net for more information.





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