need advise for windmill system

[Peanutbutter29]

Ty for the link.  VAWT designs are probably the biggest flop for wind turbines as they don't intercept enough wind.  Most turbine will reach rated values in around 28-40mph wind and this is usually at 500rpm for all.  I'd stick with a horizontal upwind design with common tails.

If you'd like to make a generator, search some on axial flux generators and you can find a lot.  These are pretty easy (for motors) to build.  Found a good .pdf link about building and you can find others.  http://www.windenergy.nl/website/files/artikelen/AXIAL_FLUX_HowItWorks.pdf

You can generally find turbine fins pretty easy and cheap. They get ya' on the genie. You can also make a tail pretty easily too.

for batteries, if you use lead-acid (car batteries);  try to drain them as little as possible.  They are designed for 20% DoD max (depth of discharge) for best life. 

Oh also, there used to be DC motors used on old large Tape Reel machines.  These ranged from 24-90v and usually were @ 500rpm.   If you can dig up a DC motor like this somewhere;  your in business too!  The 90v @ 500rpm motor (considered the magic one) would give 250w on a properly designed will mill around 28mph wind.  The 90v motor, outputted I think; 24v loaded or 40v range open circuit. 

Thanks

[TheOne]

Ty for the link.  VAWT designs are probably the biggest flop for wind turbines as they don't intercept enough wind.  Most turbine will reach rated values in around 28-40mph wind and this is usually at 500rpm for all.  I'd stick with a horizontal upwind design with common tails.

If you'd like to make a generator, search some on axial flux generators and you can find a lot.  These are pretty easy (for motors) to build.  Found a good .pdf link about building and you can find others.  http://www.windenergy.nl/website/files/artikelen/AXIAL_FLUX_HowItWorks.pdf

You can generally find turbine fins pretty easy and cheap. They get ya' on the genie. You can also make a tail pretty easily too.

for batteries, if you use lead-acid (car batteries);  try to drain them as little as possible.  They are designed for 20% DoD max (depth of discharge) for best life. 

Oh also, there used to be DC motors used on old large Tape Reel machines.  These ranged from 24-90v and usually were @ 500rpm.   If you can dig up a DC motor like this somewhere;  your in business too!  The 90v @ 500rpm motor (considered the magic one) would give 250w on a properly designed will mill around 28mph wind.  The 90v motor, outputted I think; 24v loaded or 40v range open circuit. 

Thanks

this kind of generator are big and cost more then the one from energy-creator.com, brian from this site have made some cool generator design specially for the use of wind turbine.


About the VAWT, Here a video of this kind of turbine in action: http://www.youtube.com/watch?v=7Izd9r19QAE



They are another type, see this one: http://www.youtube.com/watch?src_vid=FYMZvnER0BQ&v=kOWGATlzSrM&feature=iv&annotation_id=annotation_135273

[fritznien]

hi, thank you for your suggestions. I was thinking about this kind of wind turbine : http://uk.alibaba.com/product/523138231-WS-WT400W-wind-turbine-generator-12V.html


Also maybe making one similar to that using the energy-creator.com generator!


Since this wind turbine work with little wind, and since they are always wind where i want to put the generator, on the top of my old garage.


I don't need a lot of batteries for the garage, I have one battery right now but I looking to add more this summer, the heating that i want is mostly to be used only when the extra energy is about to be lost in the winter, not from the batteries, the batteries current will be for tools and light.

how much wind do you have, you need 25 kilometer per hour wind to get 80 watts out of that.
there is also where your going to mount the thing, on the garage will transmit vibration to the structure and place the turbine in slower turbulant air.
putting a turbine on top of a 80 foot tower will double the power produced with less wear on the unit.
check out http://www.sunelec.com/air-breeze-land-p-205.html for comparasion.
fritznien

[TheOne]

how much wind do you have, you need 25 kilometer per hour wind to get 80 watts out of that.
there is also where your going to mount the thing, on the garage will transmit vibration to the structure and place the turbine in slower turbulant air.
putting a turbine on top of a 80 foot tower will double the power produced with less wear on the unit.
check out http://www.sunelec.com/air-breeze-land-p-205.html for comparasion.
fritznien

I have an anemometer but the battery is dead, need to check the speed.


Thank for the link but on alibaba.com I can find wind turbine with 6 blades 400watts for 400$ shipping included!


I included a pic of my garage, I want to put it on top!

[TheOne]

I finally end up buying this windmill, a very cheap 1600watts!! The only complain I can do about this one is she need more wind. But for the price, with shipping around 480$

1600W FIRE-BIRD 12 VOLT 10 BLADED HI-POWER WIND TURBINE GENERATORS HIGH AMPS
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=251041874532#ht_6960wt_1363


But I still want to build my own windmill this summer, a vertical one for low wind, that i will put near to ground...

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