Hi there green people
I'm new to the forum, been checking out some of the websites u guys have and i really like what you're doing... if i had land i would build a windmill, no question.
:)
After seeing the water turbine on otherpower.com that generates 2A from 3ft of water, and various other things you guys have built...
I have a strong desire to build a semi portable windmill which is lifted by a kite or with a hydrogen bag, and produces 12V somewhere in the ballpark of 10A.
It would be awesome.
Ive done some searching on this forum and on google for that type of thing, and cant find any documentation of someone actually building one and testing it.
After some thinking i'm not so keen on the hydrogen idea, it takes a lot of energy to generate a cubic meter or so of hydrogen, and since the unit is meant to be portable anyway, one might aswell just go with a kite. (since u only need it to stay in the air [when the wind stops blowing] when its a permanent fixture)
and a bag of hydrogen is clumsy, leaks and is dangerous near flames. (the static problem could be overcome, and you could put some fire extinguisher powder in the bag too, the kind which absorbs oxygen)
I really would like to play with hydrogen a bit though, and build a nice KOH electrolyzer, any idea where to get nickel scrap?
without talking too much crap, id like to get back to the point.
i know a lot of u guys are pretty knowledgable when it comes to airfoils, hopefully you could give me some ideas as to what simple kite designs would provide the most lift, and be stable on a single string (not controllable).
I've looked up stuff on kite aerial photography, but couldn't really find any plans or anything where the guy said "this will lift x KG"
the kite does have to be stable enough not to crash the alternator into the ground as the wind gusts and fluctuates...
stuff that comes to mind are: simple foldable rigid frame kites, inflateable airfoil kites (hardly know what im talking about when i say that), and, some kind of wing which resembles what you would find on an aeroplane, with something to make it stable... a fin maybe? im no aerodynamics expert.
imagion taking your electric car out on a safari mission, when ur batteries are dead or when theres a nice wind, release your kite, set up your tent, chill out :)
im an expert stunt kite flyer, if that helps G