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Wind
Power, where and how? Before the concrete design of a wind power
installation, several fundamental questions should be clarified: • Average Wind Velocity Power in the wind is the cubic
function of the wind speed. The higher the average wind is, the more power a wind
turbine can generate. It is better to choose the area where average wind
speed is over • Turbulence Turbulence might damage wind turbine
and will largely reduce its efficiency. Therefore, locate the turbine in a
site that has turbulence is not desirable. • Local prevailing wind
direction Prevailing wind direction is
the direction of the wind last longest time in a place. It is better to
install at the site with steady prevailing wind direction, without wind ward
blocks. • Favorable Terrain Favorable terrain can speed up wind,
better to locate turbine in the facing-wind rigid of a mountain or the
mountain pass, avoiding in out of wind slop or in basin. • Height of tower Erect tower as high as you can,
because the farther you get away from the earth’s surface, the higher
and steadier the wind is. In even area, the recommended height of tower is •Obstacle Trees and buildings will obstruct the
airflow and cause a wide and thick turbulence area in front and behind the
obstacle. Avoid locating the site in such area. The wind turbine should be located in
an area without surrounding obstacles within a 400meter radius. The height of
the turbine has to be two times higher that the highest obstacle if any. If wind turbine imposition leeward
approaches in the building, the erecting pole highly also should be above the
building highly 6meters. The installation site in is away from outside the
building 75meters.
• Local regulation The installation should pay enough
attention to local regulation. |
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Copyright 2009 |