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Tuesday, October 30, 2012

Learn How To Make a Homemade Hydroelectric Generator

Because of the instant decreasing of conventional energy sources, scientists are looking for alternatives, so we will be capable of supplying the desired energy. While many of the systems are designed to convert the energy found in nature, into usable electricity, you can build such a device, on  smaller scale, at home. This guide will show you the steps of building a homemade hydroelectric generator, on small-scale of course.


This device has many names, it is called a micro-hydro, or a low-impact hydro, and the best part is, it can be easily assembled.

First step is about preparing the disks. The generator is made out of two parts, attached to one another. The first part is the so called stator, this is the steady part that does not move. It contains the coil wiring, so it can collect the electricity. The rotor is the moving part, it includes magnets, that are inducing the collected electricity into the coils. In the beginning you need a cardboard, and templates. The rotor, and also the stator are fixed into the templates and they have to be cut out and attached on the two faces of the cardboard. After you have attached these to the cardboard, by using glue, you have to drill a hole into the middle of the stator. This hole should be of 1 cm.


Step 2 is about attaching the stator onto the cardboard. First of all you need 4 coils, so you can attach them on the cardboard. It is a must to use a cardboard, that has an oval section. The wires attached to the cardboard are forming a tight coil, at around 200 turns. First you have to remove the coils from the oval section and repeat this procedure to get three more coils.

The coils have to be arranged as the template scheme tells us. The winding of these coils are arranged in clockwise and counter clockwise position. Now first of all, you have to make sure, that the electron is going on the path shown by the template, and it begins from the the left counterclockwise coil and it goes as the arrows tell us. The ends of the coils have to be connected and you have to also use insulation tape. In this case you are minimizing the risks of errors. The electrical resistance can be checked with a multi-meter. We will get the resistance in ohms. The wires have to be properly connected, and in this case the multi-meter will show a resistance of about 10 ohms.

Step 3 is about attaching the rotor. You have to get 4 strong magnets attached to the stator template in first place. On two out of the four magnets, you have to check and mark the south pole, on the other two you mark the north pole. So the template will now have 4 magnets attached in alternating position, so the polarity will be such as N-S-N-S. The next contents needed are 8 plastic spoons and a cork. Cut down on the handle of the spoons, so they will measure no more than 1 cm. Check the rotor template and insert the spoons into the cork accordingly, at 1 cm depth.

Step number 4 tells us how to get the turbine working. First you have to drill a 6mm hole into the cork, so that it will be in the center of it. Then check again the positioning of the spoons, so they are in their correct spots and use some glue to attach them. They have to stay fixated, so they will not move.

Step number 5 is about assembling the body parts of the generator and the last retouches that should be made. A bottle or a water tank has to be placed and attached to the rotor, to the stator and to the small turbine as well. Drill a hole into the center of the water tank, at about 6mms, and attach the stator with its coils above this. The rotor and the turbine have to be attached on the same head. This way the magnets will be placed near the coils and the spoons will be facing the neck of the attached bottle. We can say that our small-scale Hydroelectric Generator is now ready to be tested and started.

The last very important step is finding some flowing water to get the turbine working. If the generator and the turbine are well connected one to another than the device is ok and it will start to produce the green energy we wanted in the first place. So the stream will now do its job and we will have the energy to charge our home devices, batteries or chargers.

[via The Green Optimistic]

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