Preparing The Disks: Hydroelectric Generator: How To Build A Small One
Uploaded by
tito cuadrosPreparing The Disks: Hydroelectric Generator: How To Build A Small One
Uploaded by
tito cuadrosHydroelectric Generator: How to Build a Small One
1. Preparing the Disks
Our hydroelectric generator will consist of two main parts:
-The stator (this part is not moving and it is equipped with coils of
wire to collect electricity)
-The rotor (the rotor is the part that moves and has some powerful
magnets that will induce electricity in the coils)
First you need some templates and a cardboard. The two
templates that contain the rotor and stator scheme must be cut and
attached to the front and back of the cardboard. After these
templates are well glued to cardboard make a hole (1 cm) at the
center of the stator disk.
2. Attaching the Stator
Now, you have to make 4 coils that will be attached on the
cardboard. This requires you to use a cardboard with an oval
section. Then, start winding the wires on this cardboard to form a
tight coil (200 turns). Remove carefully the coil from the oval
section and then, repeat this procedure to make three more coils.
Arrange the coils on the cardboard according to the template
scheme (their windings have to alternate between clockwise and
counter clockwise). You must be sure that an electron would follow
the path shown by the arrows in the template, begining from the
left counterclockwise coil.
Connect the ends of coils and use insulation tape to prevent any
errors. Use a multi-meter to cehck electrical resistance (ohms). If
the wires are properly connected the meter should produce a
reading of about 10 ohms.
3. Attaching the Rotor
At this stage you need 4 strong magnets to be attached on the
stator template. Check the magnets, mark the south pole on two of
them and the north pole of the remaining two. The magnets should
be arranged on the template so that their polarity alternates (N-S-
N-S).
Then you need a cork and 8 plastic spoons. You have to shorten
the spoons so that the handle will not measure more than 1cm.
Look at the rotor template and insert the spoons into the cork (1cm
depth).
4. The Turbine
Make a 6mm hole through the cork (make sure the hole is
centered), fix again the geometrical position of the spoons and add
some hot glue to each spoon to secure it.
5. Generator body and Final Assembly
Find a plastic tank or a bottle to attach the rotor, the stator and the
small turbine. After you find the center of the tank, make a hole in
that place (6mm) and fix the stator with its coils just above the
hole. Then, attach on the same shaft the turbine and rotor (the
spoons have to face the neck of the bottle and the magnets should
be close to the coils (3mm between the coils and magnets)).
It seems that our small hydroelectric generator is almost ready to
use. All we need now is a stream of water so that the turbine to
spin continuously as long as there is water to drive it. If the turbine
is properly connected to the generator this stream should produce
enough hydroelectric power to provide juice to our utilities or
charging batteries.
A working power generator
Youtube user TheDamHeroes, inspired by the designed shown in
this article, posted a working hydroelectric generator. Watch it in
action below:
https://www.greenoptimistic.com/hydroelectric-generator/#.W_JHUjhKjIU