So here we are going to make a small wind turbine. You can make it easily at home. Almost 90 percent of the parts are made of PVC fittings and pipes. So it is very easy to assemble or disassemble and carry it to your classroom. I have uploaded my own video making this small mini wind turbine on youtube. I have also embedded that here. Let's make it. watch video you can learn it on my blog here Make small wind turbine

For More DIY Projects Like this, visit New Physicist

Step 1: Step 1: Making Propeller

Buy a 10 inch PVC Pipe (3inch in diameter)

equally divide the edge perimeterCut the pipe into blades as shown in video- watch video

Make holes as shown in the picture on anything round in shape with 2.5 inches.

Then screw 3 blades to it using cycle screws.

Step 2: Step 2: Making Wind Turbine Base

The turbine base and the post holds the propeller, dynamo, tail, and autorotation mechanism. It is very easy to make the turbine base. Buy some PVC fittings.

Elbow – 4PVC T – 3PVC pipe piecesConnect these fittings as shown in the figure.

Step 3: Step 3: Make Small Wind Turbine Tail

Most of the DIY wind turbine videos on youtube doesn’t have a tail- autorotation mechanism (yaw mechanism). Without a tail-autorotation mechanism, a Small wind turbine is not complete. What is the purpose of a tail? The tail auto rotation mechanism will help the propeller to change the direction to face the wind. Th tail will force the propeller to face the wind even at higher wind speeds.

cut GI sheetPVC Pipe, reducer

Step 4: Step 4: Making Dynamo Casing

wire

A piece of pen

PVC Fitting T

Buy 2 bearings

Buy a dynamo 3V

Connect the dynamo to the PVC fitting.

Connect the two bearings to a common axis.

A piece of a pen can be used as the axis.

connect one bearing to the PVC T

Step 5: Step 5: Mini Wind Turbine Is Ready

Place the wind turbine in front of a fan

connect a multimeter to the output wires of the dynamo.Yes, Multimeter needle is indicating a current flow through it. If you are using an efficient Dynamo, you can use this dynamo to charge your 3 v rechargeable battery. Besides, You can build a larger wind turbine than this to charge your smartphone too.

http://www.newphysicist.com/make-small-wind-turbine/