Reviewer: Derek Drake
This video is an excellent illustration of how to build a wind generator and put it to the test by using a volt meter. This generated electrical energy which peaked at over 30 volts.
Our enthusiast built a fairly decent looking robust structure for around $150. Something that can easily be achieved if your thinking about how to build a wind generator.
The tower itself is made from two sections of tubing. The lower section 1.5″ for stabilityand balance with the top section at 1″ which slotted smoothly in to the lower section. This makes it more convenient for maintenance or repairs to be carried out without the need to drag the whole thing around and making the blades and motor awkward to work on.
Notice that he was able to purchase the generator on ebay. You can bet that he bought it for much less than what he would have anywhere else. Ebay can be agreat resource for all of the items you will need to build a wind generator. Obviously it’s more convenient to purchase larger and less expensive items locally such as the tubing and the base structure.
When you set out to build a wind generator you should consider these factors. Some obvious… others not.
One of the less obvious factors, especially for the novice, is wind speed. This needs to be accurately measured before starting because this can fluctuate dramatically. You will need something called a anemometer for this. Wind direction is equally important especially for siting the location of your wind generator. As the blades can easily position themselves into the wind, then obviously you will need to locate the structure directly into the path of the wind direction in order to fully maximise converting the wind velocity into electricity.
Things to look out for, as mentioned in the video clip, is wind change. Notice that the wind gusts produced as much as 34 volts, but dropped back to under 20 volts in between the gusts. Using a battery back up system will enable you to benefit from these high wind gusts allowing you to store all this excess power for the less windy periods. You should also keep in mind changes of wind direction and work out those most frequent when deciding upon the positioning of your structure.
The most obvious things to look out for with when you build a wind generator are obstructions that are likely to reduce its performance. So you have to take into account the wind height, because it maybe necessary to elevate the blades to where the wind is more active. Look out for turbulances too, as a stronger tubing structure maybe required in severe cases.
When you build wind generator it’s design should be based on these factors.
Just to recap then, here’s a list of the main points!
• Number of blades
• Shape of the blades
• Height of the tower
• Kind of generators
• Distance of the installation spot from the ground
• Distance between the tower and the generator
Incorporating these priciples in your project will give you a much better chance of success. Watch the video again and note each one and include them in the general planning of your project. It’s an excellent video example which illustrates how you can build a wind generator as a functioning diy project that produces real cost saving electricity.
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