Need some advice on Home Made

Discussion in 'Post Your Photos' started by DonMcJr, Apr 11, 2011.

  1. DonMcJr

    DonMcJr WindyNation Engineer

    Got it all wired right and now in 10-20mph and 36mph gusts for a day and a half I get 12 Volts coming in and it charged to 11.71... Do I need to upgrade my blades to hit start up in about 6 MPH winds?

    Here's a Video:
  2. bluejay

    bluejay WindyNation Engineer

    Blades and geared it. Delcos and treadmill motors will take out your money and that joy and excitment once you learn the results. These Effsun gens that windy carries is our best option until someone makes a gear head with a 2:1 ration like servo motors use(gearhead not the ratio)..

    A good set of blades can be used on future projects :ugeek:
  3. DonMcJr

    DonMcJr WindyNation Engineer

    Ok so now which wind blades are gonna get me closest to 200 rpms in the lowest wind speed? That is the $300 question LOL!
  4. DonMcJr

    DonMcJr WindyNation Engineer

    Windy Blades that is...
  5. bluejay

    bluejay WindyNation Engineer

    Are you dealing with a 5/8 shaft on your gen?
  6. DonMcJr

    DonMcJr WindyNation Engineer

    Yes 5/8 shaft with a keyway...
  7. DonMcJr

    DonMcJr WindyNation Engineer

    I want to try to get it working better without gearing it 1st...

    I'm also going to add a 45 watt solar panel probably next month.
  8. bluejay

    bluejay WindyNation Engineer

    I would go with 3 windy blades then.I am assuming its a tread mill motor or something that needs to spin 2000rpm for full output. 3 blades will spin faster than there 5 blades but the 5 will have more torque for any future work.
  9. DonMcJr

    DonMcJr WindyNation Engineer

    It's rated 90 volts at 1725 was a new in the box Dayco pmdc 12 volt motor. Not sure what it was made for...
  10. DonMcJr

    DonMcJr WindyNation Engineer

    So I'm wondering why not the 24 inch turbo torque 3 blade. They are only 6 inches shorter that mine and say the spin fast to hit higher rpms and are good for high rpm pmdc motors and good for areas with less than 12 mph average wind speeds... I'm near port Huron Michigan...pretty sure my average wind speed is like 6-8 mph..
  11. fixitguy

    fixitguy WindyNation Engineer

    us 2 are struggling for answers and were getting them but i think were still to green to grasp the i had a good wind day 10-15 with 30 gusts.took reading with a set of 5 blades.the best i saw was 3 amps.swapped over to a 3 blades set ( same blades each blade is 42" long) saw 7 amps.then put a 3 blade fiberglass 8.3 DIA on.saw 18 amps.even tho the 3 blade aluminum blades were smaller and lighter the bigger much better profile shamed the smaller ones.i paid like $120 for the 8.3 set.
  12. DonMcJr

    DonMcJr WindyNation Engineer

    With my homemade 30 inch PVC Blades I measured the Volt output and in about 15 mph wind I only got 12 Volts.

    If my understanding of volts is correct volts are "electrical pressure" and if my battery is at say 11.72 Volts then unless my wind generator gets above that then the battery won't charge because the "pressure" from the Generator has to overcome the "Pressure" of the battery.

    Am I right? Or do amps just go into the battery even though the output Volts of the wind generator is less than the battery volts?

    Interesting on your findings though, fixitguy...
  13. bluejay

    bluejay WindyNation Engineer

    No volts have to be higher to charge and the amps determine how fast it fills up.
  14. DonMcJr

    DonMcJr WindyNation Engineer

    Yep that's what I was saying but a shorter version...

    Ok so the wind is really whipping out there...Long steady gusts over 20 mph...

    The Wind Generator is spinning and my volt meter ( handheld reading the actual output of the generator not the Coleman Charger display) is peaking right at 12 volts.

    Is it possible that a blade set can only spin so fast that you can only get 12 volts no mater how fast the wind goes?

    These are PVC blades I cut myself and didn't shape at all... only the curve of the PVC.

    Here's a pic of the Blades again....


    Attached Files:

  15. TomT

    TomT WindyNation Engineer

    Could happen if it is not clean wind.
    -Here at 12 volts after the power went out I hooked it to a 12 volt battery and never got over 150 watts. 24 volt battery max was 230 watts. At 30 - 35 v was at 480 watts max. 12 volts puts a big load on the turbine. In my turbulent area the blades will look like the start to spin up fast but then will slow and seem to not spin any faster even if the the wind still increases. But they will have to go faster at some point when the wind provides enough power to over come the load on the turbine.
  16. DonMcJr

    DonMcJr WindyNation Engineer

    Tomorrow will help me find out if my blades just plain suck, LOL!

    Hazardous weather...

    * west winds will be sustained at 20 to 30 mph during the night
    with gusts near 40 mph becoming more common toward sunrise.
    Gusts are expected to increase to around 45 mph by mid Sunday
    morning with a few gusts near 50 mph possible by early
  17. bluejay

    bluejay WindyNation Engineer

    and the strenth of your tower too :D .. update us
  18. DonMcJr

    DonMcJr WindyNation Engineer

    Well so far it's standing and spinning... Haven't went out to check the electrical yet.... ;)
  19. DonMcJr

    DonMcJr WindyNation Engineer

    Well nothing's Broke and everything held up... The highest gusts while I was out there had the Volt Meter at 13 Volts and the Coleman Meter hit 12.18 Volts...

    So I can hit 13 Volts in extreme wind...I wanna hit 14 volts in like 6-8 MPH winds...
  20. bluejay

    bluejay WindyNation Engineer

    you will have to buy a windy pma then or gear yours..

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