Posted by z on October 22, 2008, 2:19 am
>
>>
>> >
>> >> com
>> >> :
>> >>
>> >> >>
>> >> >> ps. com ... Your setup, and descriptions, say that you are
>> >> >> using an automobile alternator.
>> >> >> Have you considered a homebrew permanent magnet alternator,
>> >> >> based around the Volvo disc brake setup? It could be more
>> >> >> efficient for what you're doing. It's mainly used for wind
>> >> >> generators, but your setup would apply
>> >> >>
>> >> >> Have you or anyone you've read about built one of those using
>> >> >> old car speaker magnets? I assume hundreds of thousands of
>> >> >> "stock" speakers ge
>> >> > t
>> >> >> thrown away as they are replaced by custom stereo systems and
>> >> >> some of the magnets are pretty hefty. I just wonder if it would
>> >> >> be worth the troub
>> >> > le to
>> >> >> try and scrounge for some rather than spend $150 for magnets.
>> >> >>
>> >> >> "z" is using a PMA. It must be the blocking diode that made you
>> >> >> think
>> >> > it
>> >> >> was a car alternator.
>> >> >
>> >> > It was the photo of the setup that looked like a vehicle
>> >> > alternator was being used.
>> >> > Need strong magnets? Get the two from the magnetron portion of a
>> >> > discarded microwave unit. You see them being thrown away
>> >> > regularly, easy enough to scrounge the magnets.
>> >> >
>> >>
>> >> It uses the same housing as a GM alternator but its PM from
>> >> www.windbluepower.com
>> >>
>> >> I started with an old electric motor but it didn't cut the mustard
>> >> so I splashed out on one of those -- once I proved to myself I
>> >> could make the wheel spin :)
>> >
>> > Is it a PM DC motor? Got any wind? I'll bet you could make some
>> > PVC blades and put it on a rotating mast in less than 2 hours.
>>
>> Not much wind here man, or i'd be all over it. I'm in a pretty
>> sheltered area. The only real wind I get is when a storm hits .. and
>> then its way too much wind.
>>
>> I'd have to run around a mile of wire to get to a high ridge that is
>> the nearest spot .. and no road going up there so ..
>>
>
> So just put it on a one mile high pole! ;-)
>
> My experience says if you can get around four volts by turning it by
> hand at about one rpm then it should work. Maybe if you use a small
> two-blade prop and only get some power from it during storms....
i could get it to turn that fast by sticking it in the output of my
existing hydro setup.. heh.. the water flows out of that pretty good!
Posted by Ulysses on October 22, 2008, 12:44 pm
> >
> >>
> >> >
> >> >> com
> >> >> :
> >> >>
> >> >> >>
> >> >> >> ps. com ... Your setup, and descriptions, say that you are
> >> >> >> using an automobile alternator.
> >> >> >> Have you considered a homebrew permanent magnet alternator,
> >> >> >> based around the Volvo disc brake setup? It could be more
> >> >> >> efficient for what you're doing. It's mainly used for wind
> >> >> >> generators, but your setup would apply
> >> >> >>
> >> >> >> Have you or anyone you've read about built one of those using
> >> >> >> old car speaker magnets? I assume hundreds of thousands of
> >> >> >> "stock" speakers ge
> >> >> > t
> >> >> >> thrown away as they are replaced by custom stereo systems and
> >> >> >> some of the magnets are pretty hefty. I just wonder if it would
> >> >> >> be worth the troub
> >> >> > le to
> >> >> >> try and scrounge for some rather than spend $150 for magnets.
> >> >> >>
> >> >> >> "z" is using a PMA. It must be the blocking diode that made you
> >> >> >> think
> >> >> > it
> >> >> >> was a car alternator.
> >> >> >
> >> >> > It was the photo of the setup that looked like a vehicle
> >> >> > alternator was being used.
> >> >> > Need strong magnets? Get the two from the magnetron portion of a
> >> >> > discarded microwave unit. You see them being thrown away
> >> >> > regularly, easy enough to scrounge the magnets.
> >> >> >
> >> >>
> >> >> It uses the same housing as a GM alternator but its PM from
> >> >> www.windbluepower.com
> >> >>
> >> >> I started with an old electric motor but it didn't cut the mustard
> >> >> so I splashed out on one of those -- once I proved to myself I
> >> >> could make the wheel spin :)
> >> >
> >> > Is it a PM DC motor? Got any wind? I'll bet you could make some
> >> > PVC blades and put it on a rotating mast in less than 2 hours.
> >>
> >> Not much wind here man, or i'd be all over it. I'm in a pretty
> >> sheltered area. The only real wind I get is when a storm hits .. and
> >> then its way too much wind.
> >>
> >> I'd have to run around a mile of wire to get to a high ridge that is
> >> the nearest spot .. and no road going up there so ..
> >>
> >
> > So just put it on a one mile high pole! ;-)
> >
> > My experience says if you can get around four volts by turning it by
> > hand at about one rpm then it should work.
There I go again. That should have been one RPS (revolution per second). I
guess the exhaust fumes from my generator *are* getting to me.
Maybe if you use a small
> > two-blade prop and only get some power from it during storms....
> i could get it to turn that fast by sticking it in the output of my
> existing hydro setup.. heh.. the water flows out of that pretty good!
There ya go!
XML site map
>>
>> >
>> >> com
>> >> :
>> >>
>> >> >>
>> >> >> ps. com ... Your setup, and descriptions, say that you are
>> >> >> using an automobile alternator.
>> >> >> Have you considered a homebrew permanent magnet alternator,
>> >> >> based around the Volvo disc brake setup? It could be more
>> >> >> efficient for what you're doing. It's mainly used for wind
>> >> >> generators, but your setup would apply
>> >> >>
>> >> >> Have you or anyone you've read about built one of those using
>> >> >> old car speaker magnets? I assume hundreds of thousands of
>> >> >> "stock" speakers ge
>> >> > t
>> >> >> thrown away as they are replaced by custom stereo systems and
>> >> >> some of the magnets are pretty hefty. I just wonder if it would
>> >> >> be worth the troub
>> >> > le to
>> >> >> try and scrounge for some rather than spend $150 for magnets.
>> >> >>
>> >> >> "z" is using a PMA. It must be the blocking diode that made you
>> >> >> think
>> >> > it
>> >> >> was a car alternator.
>> >> >
>> >> > It was the photo of the setup that looked like a vehicle
>> >> > alternator was being used.
>> >> > Need strong magnets? Get the two from the magnetron portion of a
>> >> > discarded microwave unit. You see them being thrown away
>> >> > regularly, easy enough to scrounge the magnets.
>> >> >
>> >>
>> >> It uses the same housing as a GM alternator but its PM from
>> >> www.windbluepower.com
>> >>
>> >> I started with an old electric motor but it didn't cut the mustard
>> >> so I splashed out on one of those -- once I proved to myself I
>> >> could make the wheel spin :)
>> >
>> > Is it a PM DC motor? Got any wind? I'll bet you could make some
>> > PVC blades and put it on a rotating mast in less than 2 hours.
>>
>> Not much wind here man, or i'd be all over it. I'm in a pretty
>> sheltered area. The only real wind I get is when a storm hits .. and
>> then its way too much wind.
>>
>> I'd have to run around a mile of wire to get to a high ridge that is
>> the nearest spot .. and no road going up there so ..
>>
>
> So just put it on a one mile high pole! ;-)
>
> My experience says if you can get around four volts by turning it by
> hand at about one rpm then it should work. Maybe if you use a small
> two-blade prop and only get some power from it during storms....