Embedded Systems in Egypt: Wind Turbine

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Showing posts with label Wind Turbine. Show all posts

Tuesday, September 19, 2017

Half Brainer Wind Turbine

Half Brainer Wind Turbine

If I managed to build it and it works so you can make it too. This is no joke. I've built this one with only half brain.

I came back from my exhausting night shift at work and wanted to spend some time in something useful and guess what I could come up with. Yes. A working wind turbine.

I really come from night shift feeling that I am only thinking and seeing the world with only half a brain. Let's get started.

Note:

This is how I look after coming home from a night shift.

Step 1: Collect Stuff

Components:

Here are the components for this project , you can see that nearly all of them are recycled materials :

Motor Amazon US , Amazon DE , Amazon FR, Amazon UK , Amazon CA , Amazon ES , Amazon IT , eBay , Banggood , FlipKart India , Lazada Malaysia , aliexpress

This was the only new component I bought for this project.

Old steel groom --- This is the main pole for the wind turbine

Tie rap Amazon US , Amazon DE , Amazon FR, Amazon UK , Amazon CA , Amazon ES , Amazon IT , eBay , Banggood , FlipKart India , Lazada Indonesia , Lazada Malaysia , aliexpress

Old CD-Rom player metal cover --- This is the directing rudder. For wind turbine automatic direction through all wind situations.

PET bottle ---- To cover and protect the motor against dust and water.

Some Wires

1 mm Copper wire

1.5 Pet Bottles

Tools :

Pliers Amazon US, Amazon UK , Amazon CA , Amazon DE , Amazon FR , Amazon ES , Amazon IT , Banggood , Aliexpress , eBay

Scissors Amazon US , Aliexpress , eBay

Gardening Scissors Amazon US , Amazon UK , Amazon CA , Amazon DE , Amazon FR , Amazon ES , Amazon IT , Banggood , Aliexpress , eBay

Step 2: First Trial

Actually I intended to build a vertical axis wind turbine using two PET bottles.

First, I cut the two bottles to make fins.

Then I welded the two bottles from their top using heat.

And made holes for generator and for Copper wires.

Then installed the generator and fixed it using Copper wires.

Failure. Just another none rotating vertical axis wind turbine.

The bottles didn't make enough torque to rotate the generator.

Step 3: Second Trial - Success

Using half brain, I've decided to cut the bottles bottoms hoping to make some rotation.

Using trial and error, I've discovered what works and what doesn't.

And then I cut the bottles to shape each one if them into something that looks similar to wind turbines blades to generate enough torque for rotation.

Success. It works and generates electricity.

Also another thing I discovered about this wind turbine is that it is completely safe to you and to your kids.

The blades are very elastic and delicate. Even if it hits something while rotating there is no problem at all.

Thanks for reading my post.

From my instructable

https://www.instructables.com/id/Half-Brainer-Wind-Turbine/

Friday, July 12, 2013

PC Fan Wind Turbine - How to turn a PC Fan into a small Wind Turbine

This post is not about Embedded Systems. But it is about a DIY project of mine. Old cheap PC Fan to a small Wind Turbine.

I looked at the some old PC Fans I have and thought that they can be used as Small Wind Turbines.

PC Fan from Banggood

The PC Fan is Brush less DC ( BLDC ) Motor. It can be converted to a generator in 5 Minutes.

The concept is simple. You can skip this part and start directly with the conversion.

The BLDC motor used here has a stator winding and a Permanent Magnet Rotor. The motor is supplied by 12V DC. But the magnetic field rotation is generated by electronics ( Electronic Commutator ) . As the name implies , the electronics components convert DC into AC which makes the magnetic filed in the stator rotate.

The electronic commutation is achieved by a small IC.

To get the induced current from the motor used a generator , you must remove this IC .

This is what I 'll show you how.

All what you'll need is this tool

crocodile clip

First remove sticker on the back of the fan.

Then you 'll find a small piece of plastic lock that holds Fan shaft secured , Don't brake it. Remove it with a crocodile clip .

PC Fan from Banggood

You may like some vidoes from my YouTube Channel AeroArduino

You can see 4 poles of winding connected in series and have only 2 terminals. To get the induced current , connect supply wires to those terminals and let the fan rotate.

With a solder iron , gently remove solder under IC pins and then remove the IC.

Remove this IC.

PC Fan from Banggood

You can see that the winding is connected to the board at three points. One common and tow other terminals.

Remove the supply wires form there place to put them in the points where the tow winding wires are connected to the board.

Now , you have the stator ready to generate current. Now install the fan.

PC Fan from Banggood

Assemble the fan in its place and lock it with the piece of plastic I told you about.

Put back the sticker.

Connect LED terminals to the Supply wires. Don't worry about +ve and -ve terminals , the LED will light if you connect it any way , trust me.

Roll the Fan

This video can give you a step by step quick guide