| Hey guys I have been reading this discussion board for a while, and I have recently had an idea that I would like to share with you so that you can provide comments or further ideas to this project.
I think that a PMA could be built using a bicycle wheel, but not for a wind application but to generate electricity while riding. I already have a system running on my bike consisting of a dynamo hub as a main power generator.
(For those who want to see the whole project, I posted it on a site - it is in Spanish :P - http://unicrom.com/cir_cargador-bateria-bicicleta.asp)
I have been thinking that hubs wear and that building a PMA on a bike wheel would be a great idea. Initially I thought about 4 round Neo magnets that would be attached to the spokes, and a coil that would be fixed to the bike(yes just ONE for a start) made of thin wire but having MANY MANY turns (>1000). My idea is to add more coils later (up to 4 ideally) and put them in series.
Now here is where is need your experience... I know that the more turns a coil has, the more voltage you can get, BUT the less current you can get and handle because of the wire characteristics. I am targeting between 20 to 30W at 60/70 rpm (wheel RPM) and I would like to know what would be the best configuration (number of coils, turns on each coil, etc).
I hope this is clear enough, and please ask any questions if I was not clear enough in my explanation. This is a very important project to me, because I have long thought about doing something like this, and when I came across PMA websites like this it really made me decide to start the project.
Thanks,
Nick. |
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