Making a wind generator

pagos

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8 Sep 2007
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I'm thinking of making a wind generator but can not find any info can anyone help. I'm heading to chile where I will get lots of wind and know on easter island well worth visiting, we have been here 3 months and don't want to leave.
 
Hi i understand that some pee'ps make them using sturmy archer dyno hubs have intended to try this myself and found a dyno hub but havent got around to it yet
see link
http;//www.reuk.co.uk/sturmey-archer-dynohub.htm
 
The difficulties of home made wind generator are that you need blades of a decent diameter to harness enough power from the wind. ie at least 1 metre diameter. These blades spinning at speed can require strength and good balance. At that diameter the revolutions per min of the shaft is not very high so many of your easy sources of 12 v generator won't work.
You can either gear up the shaft speed which gets complicated and loses power or get or build a gen that will produce at low RPM.

The commercial wind gens seem to use a permanent magnet in a rotating field however you may like to experiment with Dc motors. The higher voltage type will have more turns on the coils so develop more voltage at low speeds. ie a 48V motor may produce 12v tha tis usefull at your expected few huindred RPM.

good luck with the gen and with the Southern Pacific Ocean olewill
 
And quite a lot of people will soon be selling them as they begin to realise how useless they are in a domestic application...
 
GLAD YOU FOUND THE SITE OF INTEREST i intend to try the blades mounted axialy rather than radialy this way you dont need to make the thing directional as it will opperate omni directional
 
The person I bought my present boat from had made a wind genny from a dc motor. I don't know where the got the prop, but it was 5 feet long (tip to tip).
it worked...
 
The best source of information on small scale DIY wind turbines (in the UK anyway) is Hugh Piggot. He has been building / teaching / preaching about small scale turbines for years. He has published several books on the subject, and regularly runs courses.

Best contacted through his website Scoraig Wind
 
Excellent info thinking of mounting with haluards really just for anchoring which I spend a lot of time as hate marinas cost to much, Thank you everyone very much. I am afraid ebay is not an option as postage to where I am and heading is to expensive. Leaving for Chile tomorrow. Take care everyone
 
The problem with the 'plans' that folks sell on eBay is that they start by telling you to get hold of a DC Permanent Magnet motor 'the ones fitted to old tape drives are perfect'. Try finding one in the UK though, and if you do they are pretty expencive.

by the time you've arsed about trying to make one you'd probably been better off sending Marlec your hard earned dough and fitting a 913............
 
thanks but that was the reason to make my own. I have the 913 and it's quite honstly useless. I have just arrived in Chile after 24 days at sea it made nothing and when hove to for 24 hours as a storm went over us I forgot to tie it down and all it did was scream and make things sound worse than it is...
 
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