wind turbine?

Question

is it possible to make your own greatly scaled down wind turbine and if so how could u

Answer 1

Yes, but you will have to overcome many engineering challenges. How much power do you need? How windy is your site? The important thing is your average wind speed and you will get a higher figure if you can get high above the ground. You will need a generator to match your rotor speed as gearboxes, especially small ones, are inefficient. You need slip rings to bring the power down (cables would get twisted). You need a safety mechanism to cope with high wind speeds (which would otherwise destroy you machine). This can be achieved by automatically turning the rotor out of the wind (feathering) or a brake.

You need to understand aerodynamics to design the rotor which is fast and efficient. The best rotor efficiency will be about 60% and another useful fact is that the power will rise as the cube of of wind speed. In practice this means you will get no useful power at low wind speeds and at high wind speeds the power will quickly become destructive.

It is not as easy as it looks - good luck.

Answer 2

It is possible today to make a wind turbine as small as can you imagine it.
To gain perspective, there is a strong market for jet turbofan engines that are less than an inch long for model aircraft. Atomic researchers have been building particle turbines for decades which are microscopic.
The smallest, reasonably priced turbines may be made with Microlithography, which uses photography to make the pattern. Then metallic films fill the voids in the pattern.
So, you can yourself with about three night's research on the Internet, a lot of practice, and some classic black-and-white photography equipment, make a turbine airfoil smaller than a pencil eraser's diameter.
Not small enough? look at nanotechnology. you can make one so small, your eye cannot detect it.

Answer 3

Many years ago many farms used a wind generator . It turned a large 24 V generator which charged batteries ,they had a charge regulator to take care of your expensive batteries. Used in most cases for lights ,and it was better than the kerosene lamp.