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Homemade Portable Wind Turbine

This is a discussion on Homemade Portable Wind Turbine within the Broken Arrow forums, part of the Gun Forum category; A hidden item with the VAWT is only half the blades are engaged by the wind at a time. Other half are on the back ...


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Old September 23rd, 2010, 05:23 PM   #76
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A hidden item with the VAWT is only half the blades are engaged by the wind at a time. Other half are on the back stroke. So you really want to load it up with blades. One every 30 degrees depending on height.

HH

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Old September 25th, 2010, 08:16 AM   #77
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The 4'9" blades I'm going to use should give 285sqin per blade. And I'm figuring 12 blades at every 30 degrees on the bicycle rim. Figuring 6 blades engaged at a time that should give about 1710sqin. Hopefully that is enough.

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Old September 27th, 2010, 09:52 AM   #78
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Running chain & sprockets down one side which I hope will leave space for a battery on the other side.

HH

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Old September 27th, 2010, 06:12 PM   #79
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Those extra sprocket combinations act like a transmission & should give about a 5:1 ratio.

If you wanted to use an actual transmission for this or a DC genset a motorcycle one would probably be best as most are 5 speed & fairly light weight.

HH

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Old October 1st, 2010, 07:05 PM   #80
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Got lucky & found some angle iron (bed frame) at the dump today so should be able to get alittle more done on the windturbine this weekend.

HH

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Old October 2nd, 2010, 10:45 AM   #81
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With the extra metal I now have a bit of welding to do. The four blades I have have the slots cut out to go over the rims but still need to cut out the slots for the spoke.

HH

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Old October 2nd, 2010, 01:59 PM   #82
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Four blades ready to install.

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Old October 2nd, 2010, 04:52 PM   #83
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Rear rack ready to weld up.

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Old October 3rd, 2010, 03:13 PM   #84
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Now have to figure out how to align stuff up for the top rail.

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Old October 3rd, 2010, 03:21 PM   #85
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The two lengths of gas pipe are driven into the ground to prevent the rims from twisting.

Should be able to install the top rail tomorrow depending on weather.

HH

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Old October 4th, 2010, 07:37 AM   #86
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Working on getting the top rail up.

And aligned.

HH

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Old October 4th, 2010, 08:21 AM   #87
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The problem with all the twisting with the blades & the rims was taken care of with both the bottom & top rims mounted. Even with just 4 blades its stable.


HH

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Old October 5th, 2010, 06:49 AM   #88
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If you can find one cheap or free, a 12VDC electric trolling motor might work to produce electricity.

HH

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Old October 5th, 2010, 07:52 AM   #89
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I may be stuck on the build till I find a chain tensioner.

HH

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Old October 5th, 2010, 08:55 AM   #90
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I may be stuck on the build till I find a chain tensioner.

HH
idler gears on the rear of a 10-speed. come with spring and everything.

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