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Answer by arjun
http://cgi.ebay.com/Wind-Power-Turbine-PMA-Build-One-Cheaply-Free-/150472144634?pt=LH_DefaultDomain_0&hash=item2308d6b6fa

If the above link showed your wind generator then………its rated for 12vdc, 150 RPM…..

it is suggested to make use of The voltage reading meter…….

Alternative might be
1. Use the a second generator if u have spare…..connect….it to the two output leads of the first generator………now ur second generator will act like motor and starts to spin……..if ur second generator is not spining….then ur not getting the actual output across wind generator…..
2.Connect any device that are rated for 12vdc exmaple…..computer speakers,modems….

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Answer by Jim
Don’t bother. The larger the wind turbine the higher the energy returned on energy invested ratio becomes. (in the same location).

You are definately wasting your time on a small wind turbine, you will not be able to power a lightbulb in the strongest of winds.

The way a wind turbine makes it’s energy is by spinning something which makes an alternating current, I have no idea how a direct current could be made by something spinning such as the wind turbine.

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Answer by charles s
The design shown is about as easy as you can find. You should investigate why your generator doesn’t work first. One thing might be how the coils are mounted. Check against the web site to make sure that your coils are not working against each other or something. There is a system to how the coils are arranged, so did you follow it?

Answer by wingstwo
You need to troubleshoot your generator to see what the problem is. There is a handy listing at the end.

Looking at it is not good enough. You need test instruments to determine what it is doing. I bet you do not have a Digital Multimeter. You have to have one to troubleshoot this. Also need a compass to verify magnet polarity. You might need an adult with some electronics to help, maybe your instructor if you do not have a family friend, aunt/uncle, grandparent that can help.

Two approaches: engineer will typically begin at the beginning and verify things work step by step. Technician typically starts with what doesn’t work and go backward until you find the problem.

First, use the DMM to see if the diode is seeing any voltage when turbine is spinning. If small voltage, likely weak magnets. If enough voltage but no light, either bad connection or wrond diode – replace with low voltage/low current type. See the debug sheet. Then, verify the wire is good (measure resistance per the instructions), then verify the connections to the diode are good. The diode must be disconnected on at least one lead to check the wire. If the connections aren’t good, you will not have anything – a thin layer of laquer insulation has to be removed from the wire before you can connect it. Magnets mis-oriented or too weak.

Good luck!

Answer by Violet W
I concur that troubleshooting the existing design is wise.

Recheck the magnets to make sure they all have the same polarity, as in the exposed faces are all North or all South. See figures 9 and 10 on page 12.

Check the direction that the wire in each coil is wound. They all should be wound clockwise (or all wound counter clockwise). If you accidentally flip one coil over, it will fight (cancel out) the voltage produced by another coil. Flip two of them over and those two will cancel out the other two, providing no net voltage. So it is important that they all be tacked down in the same direction. See figure 1 on page 9.

If you have a spare magnet and a volt-ohm meter, you can check the output of each coil as follows: Connect the volt-ohm meter across the two wires (it’s okay if they are connected to the LED; connect the meter across the LED if that is the case). Set the meter on the DC microamp scale. With the rotor removed, slowly wave a magnet across one coil. As the magnet approaches, the meter will deflect in one direction, and as the magnet leaves, the meter will deflect in the opposite direction. As you approach each of the four coils one-at-a-time, the meter should deflect in the same direction. If not, one or more of the coils are flipped.

If the meter did not deflect at all, then there is a break in the wire, or the enamel has not been sanded off of the ends of the wire sufficiently to expose the bare copper. Find the problem (broken wire by inspection, or resand the ends) until you get a reading.

If you do not have a volt-ohm meter but your DMM has a microamp range (or the lowest DC current range), connect it and perform the tests mentioned above.

If you *do* get the expected readings, then the coils are working properly. Reassemble the rotor. Verify that the clearance between the magnets and the coils is small (say 1mm). Then connect the DMM with it set to the lowest VAC scale and try spinning it again.

If you have voltage, but the LED doesn’t light, then maybe there is not adequate voltage to run the LED. White LEDs at low current levels require about 3.2Vdc to operate. Red ones take less, around 1.7Vdc. So you could try substituting a red LED and see if that helps. (Note: Even though your generator produces AC and the LED uses DC, it will not produce enough power to damage the LED when it reverse-biases the LED.)

Good luck! It sounds like a neat project.

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Answer by annan
dont know

Answer by pickapop85
Well, by definition a turbine creates shaft work, which can then be converted to electrical energy through electromagnets.

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Answer by Vincent G
Worlds largest wind turbines generate over 7 megawatt (some with power output of 10 megawatt are in development).

That is enough power for several hundred houses.

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Answer by guru
It could
If they are side by side
If one in front of the other then no
If one on top of the other it would not be equal power etc…

Guru

Answer by billrussell42
you probably need a larger generator, if it is sized for the one turbine only. Superior to get a second generator, as the linkage would get complicated for two turbines.

It will produce twice the electricity if they are not linked, ie, one in front of the other.

.

Answer by Wyatt
basically yes. but you would have to use a pulley system to get the two hooked together. it would be more economical to use more blades for your one turbine than having 2 turbines. visit http://www.missouriwindandsolar.com/

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Answer by surya
simple. jst take a dynamo and a toy fan. take the wings of this fan and fix it into the shaft of dynamo. place the fan on the direction of blowing wind.

Answer by Gregg Andrews: Reloaded
You could take the extremely easy route and run a pin-mill (el-cheapo toy) to a toy DC motor from which you would run leads from the contacts (inputs) to the object you desire to power (although you would produce almost nil in terms of voltage/amperage).

Otherwise, I would recommend finding one of those cheap windmills at a local garden shop, and running it to a DC motor (one you are willing to burn the brushes out of btw)… if you were creative, you could use a set of pulleys and belts as a gear system, different ratios pending wind speed and power output needed…

I do not know your budget, and I do not know how much time you have.

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Answer by Wiz
You could hook one up. It could only be used to power items which run on 12 volt DC, unless you use an inverter. Any battery you use would not last but a few minutes when powering more than a light or two. The effort you would have to expend in charging the battery would greatly outweigh the usefulness you would get out of it.

Answer by Jim W
A battery is about $ 60 to $ 100 and the cost of the generator about the same, so that is a month’s electricity bill in my area, The generator charges the battery and runs the inverter, another $ 200-$ 500 depending on size, you need to peddle your ask off to keep it charged. I doubt you would save any money doing it, but you would loose weight with all the exercise and you risk the occurrence of a heart attack from the strain. It ain’t worth the candle.

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Answer by zac123
this is a huge question. there are lots of variables.

do a search on ebay. there are a few small kits on there with rating etc

Answer by billrussell42
I think you mean wind turbine.

A wind generator is something that generates wind, such as a fan, or a wind tunnel.

The largest wind turbine is about 4 MW, that is, it generates 4 MW of power.

From the reference: The costs for a commercial scale wind turbine in 2007 ranged from $ 1.2 million to $ 2.6 million, per MW of nameplate capacity installed. So for 4 MW, that is about $ 8M.

To purchase one this size, you need to contract with a company like GE or Siemens that will do the site prep, etc. But be prepared to hire a staff of lawyers first and give them years to get all the needed documentation and permissions.

.

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Which is Important, the RPM or Watt of the generator?

I presume with a 12v DC generator, I do not need a charge controller for the batteries?

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Answer by Abdullah Eyles
The speed of a 12V generator doesn’t really matter. The output, measured in Watts is more important.

Of course you WILL need a charge controller, otherwise you might end up cooking (overcharging) your batteries on windy days.

Also the output of the generator will need to be around 13 volts to give the batteries a decent charge – they will always be under voltage if you charge them with 12 volts.

Have a look at the magazine linked below, you will find lots of useful information there…

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