Home made Wind Turbine using Shimano DH3N30 Dynamo and Plastic Pipe as Blades.

The project was to build a cheap Wind Turbine from readily available products with little manufacturing requirements that would provide enough energy to top up vehicle batteries while in storage or trickle charge a caravan or motor-home leisure battery when there is no heavy current demands from it. This is a proof of concept.

This Wind Turbine is a prototype for testing purposes hence the tiny wires and minuscule bridge rectifier dangling on the end of it. The bridge rectifier is capable of 30 amps but obviously this turbine is not. The voltages are off-load and un-smoothed meaning they are not accurate, if they were smoothed they would read much higher as the ripple on the output side of the rectifier would be much less.

The finished product would look much prettier as things will be tidied up cosmetically.

Category:

Science & Technology

Tags:

• Home Made
• Wind Turbine
• Shimano
• DH3N30
• Dynamo
• Hub Dynamo diy

[Waachia]

Hi, are you still available? Need to ask some quesitons

[remeeraz]

@Waachia Ask away! :)

[bumpf1]

Did you go any further with this or was it just a proof of concept?

[remeeraz]

@bumpf1 It was just a proof of concept for now.

[remeeraz]

It was £30 for the Dynamo and £5 for the Tube, then a further £5 for the nuts, bolts and bridge rectifier, all that needs doing now is a slip ring to be made up in order to allow the wind tubine, when mounted correctly, to rotate into the direction of the wind and transfer the AC from the Dynamo to the circuitry below.

If you look around you can pick up the Dynamo for a lot less than £30, I put a max bid of £30 and some cheeky git pushed my bid up and then retracted when they over bid me.

[Waachia]

@Waachia We chose to build a micro wind turbine like the half size of yours and we have 1 question formulation for this project (we are 3 pupils doing this in highschool in Sweden). The first is to look at 2-3 different forms of the blades and see which one is the best. Do u have other suggestions ?

[callmeshane303]

Drill out the spoke holes and fit two 4 - 6mm thick aluminium disks about 150 - 180mm in diameter - each end of the hub, to mount your blades on.

[venkbabu66]

good idea man !!!!

[grownupTv]

why is it spining slowly o.0 it was ment to go fast and make sound

[citizenchan]

The shimano hub is cheap, but it's not nearly as efficient as the Schmidt SON28 - which is in the 80-90% range versus aroun60% for the shimano (if I recall correctly) The SON28 would also exert less drag on the the blades. Just FYI in case you planned to improve the performance.

Although the SON28 about $250 USD.

Awesome project.

[geometry001]

Nice job i must say, but then , shaping a cylindrical plastic pipe into an airfoil..? how

convenient was that?...