Hi! my teaher told me to do a science project about energy, i want to do a wind mill or a wind turbine wich generates electricity and it can turn on the light. how can i make it? what do i need?
thanks!
2007-01-23 03:05:37 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Engineering
A traditional windmill is the easiest to build - that is pretty flat blades mounted in a vertical circle with a tail piece to aim it into the wind. The shaped blades of a propellor type wind generator are much harder to make as are the mixer shaped blades of a vertical windmill.
The big problem of making a model of a standard windwill is getting the power out. The shaft the blade turns on must have a crank or gears that line up with the center of rotation of the head, so the blade axle must have a bearing on either side of the crank or gear head - in a small model, getting these bearings mounted, etc., gets more tricky than in a bigger device.
If pumping is done with a crank, there must be counterweights so the windmill is only lifting water and not the weight of the shaft. If gearing is used, the tail must be bigger to offset the torque from the load (otherwise the spinning of the blades will rotate the head around the gears.
The second reference in particular will give you good data.
2007-01-23 03:24:07 · answer #1 · answered by Mike1942f 7 · 0⤊ 0⤋
All DC motors are generators! Get yourself a 1.5v to 9v motor off a toy car, etc. Put a paper or plastic fan blade on the shaft of the motor.You may have to glue it on overnight or use a glue gun to make sure it is stuck on properly. When you blow on the fan blades it spins the shaft of the dc motor and you are generating power.Off the back of the motor are 2 wires usually red and black Hook that up to a 1.5v or greater, but not more than 6v light bulb or even better if you use a small LED ( which is polarity sensitive, needs to be connected + and - correctly) Get an electric fan to help blow on your NEW WIND TURBINE and your in business
2016-03-28 22:42:03 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Buy a fan from kmart. Put it in a windy place. The motor will function as a generator. Measure the voltage and current produced at the plug with the fan turning with the wind. Get a light or some other load that will energize with the power you produce. Write a nice report on generators motors and reverse power.
2007-01-23 07:17:25 · answer #3 · answered by BRUZER 4 · 0⤊ 0⤋
Well you are going to need a lot of moving air maybe a fan will do after you build the electric windmill
2007-01-23 03:17:40 · answer #4 · answered by Ibredd 7 · 0⤊ 0⤋