Why do irrigation windmills (on farms) have a higher blade surface area than electrical generation turbines? - irrigation blade valve
It seems strange that the rotor of choice for most installations for electricity, a three-bladed design is. I do not understand why a much better interface design (eg, the rotor of a windmill for irrigation - the ones you see displayed in the figure of a large farm Americana) are not used to absorb a greater amount of wind. Do you have to do with the mortality rate of birds? In addition, electrical systems are not in a position to jump into the wind like a weathervane from?
Tuesday, February 2, 2010
Irrigation Blade Valve Why Do Irrigation Windmills (on Farms) Have A Higher Blade Surface Area Than Electrical Generation Turbines?
3 comments:
Wind Turbine Generators, you will have the opportunity to change direction depending on wind conditions. In large turbines, there is usually a small weather station to measure the top of the cable car up to speed and wind direction. In the pod, the "body (" the turbine at the top of the tower to set the leaves attach), control of the turbine directly to the engine turbine in the wind.
The monitoring teams also adjust the pitch of turbine blades into the wind to catch more or less, depending on the power and wind conditions. This is very similar to technology used in the propeller of the aircraft.
The old windmills was high time for America, are simply fixed blade designs, which have been designed to be cheap and support a wide range of wind conditions.
In modern turbines, each hand is a very sophisticated controlled, carefully, a device very expensive. And each piece is compared to large blades of wind turbines in the near future. Long-term studies have compared the number of different blades and found that 3 bladesBalance is acceptable, taking into account the cost, performance, reliability and the ability to obtain useful energy from wind.
Because the efficiency of wind turbines, but want a high torque of the pump.
Windmills of irrigation need a lot of energy to move water, they need to catch more wind, large leaves.
Electrical installations for electricity. This is done by simple rotation. The more often you turn the camera produces. Not really something moves, so you do not need large plates and big plates slow down and reduce the production of energy.
Wind turbines are usually placed in a relatively constant wind. Since this is generally not one of the wind. It would make no sense to put a wind turbine in an ever-changing.
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