Using a car alternator with a bike to power my home? How much energy can I produce?!
Sooo I need to confess that once in a while
I do blunders which can result in video clips in which practically every little thing fails. Case in factor, the video clip in which I attempted
turning an induction electric motor into a generator to make sure that I can revolve it with my bicycle to
produce power. Now despite the fact that the “induction electric motor generator”
didn'' t job well back after that, I am still to this day thinking about hooking up a generator
to my bike and creating my own electrical energy.And fortunately the comment section had the idea to simply make use of a vehicle alternator to do that which you can obtain basically cheaply from Ebay. And in instance you do not
know, such generators are obviously utilized in vehicles and are turned by the electric motor of it in order to create electrical energy and therefore charge up the cars battery to power every one of the electronic devices. So I ordered one those generators and as you can see it seems to be able to output an optimum of 120A at 12V which amounts to a power of 1440W which ought to be more than sufficient to power many of my home devices. So in this video clip allow ' s hook this generator up to my bike in order to finally'produce my long desired bicycle generator configuration and locate out how much power I can really generate on my very own and whether I could power my home with it! Let ' s begin! This video clip is funded by JLCPCB! Do not hesitate to see their website JLCPCB.com to not only figure out what outstanding PCB and Setting up solutions they supply however likewise to easily publish your Gerber files and hence order economical and top quality PCBs quickly.First off let ' s have a closer check out the vehicle generator. As you can see the front side comes with a. equipment that includes 6 rips, which is quite common for such generators.
The backside was a bit more challenging though.
with 2 big terminals which are both the plus result poles of the system, while the. enclosure is the minus pole. And there were additionally 2 smaller sized pins a bit. much more concealed whose feature was not noticeable yet.
Yet anyway, to verify that this generator. works, I merely linked my multimeter to its major outcome poles and offered the blades a. excellent spin and as you can see we obtain absolutely nothing on the multimeter, brilliant. At this point I thought that because the generator. building probably
features 3 primary coils whose a/c result voltage needs to obtain corrected. with something like a Sechspuls-Brücken-Schaltung, the voltage decline of those diodes would certainly be. as well high to obtain an useable result voltage at a low RPM.I mean the voltage decrease seems to be around. 1V and my low RPM might be able to develop just that. And thinking about that a cars and truck uses a minimum of 1000. to 2000 RPM to obtain 12V on the generators outcome, it was time to turn quicker. So brought in an old bike I had existing around. that featured a decent moving system, at the very least for one side of it. I in fact needed to do some tinkering at the. back wheel so as to get it into the greatest gear.But after doing that, I was able to measure
. an RPM of around 300 to 400 while powering the bike with my hand. However as you probably currently guessed, that.
was still unsatisfactory which suggests we need another extra gear system. And as soon as again it was the comment section. that provided me with one of the most easy, however appealing service. By simply removing the back wheel, decreasing. it and removing its tube as well as its tire, we are entrusted a rim which we can utilize as. one complete gear wheel of the system while the car generator includes the other wheel. And given that the alternators gear wheel attributes. a diameter of around 7cm,
while the edge features a diameter of around 57cm, we will certainly get an equipment. ratio of around 8.14 that will hopefully suffice to transform the generator quick enough. So next I measured the approximate size.
for the mandatory drive belt along with the size for it and finally determined on this 4. ripe belt with a size of 2.49 m, which appeared massive after obtaining it yet on the bonus side,. it fit both sides perfectly and the system looked
rather appealing up until now. And after reinstalling the back wheel to the. bike it was time to do what I
am best at, … woodworking! I understand, my jokes are the very best yet honestly. I needed to create a timber construction that not only holds the front wheel in position, however also. something that elevates the back wheel and holds it in setting as well for which I also. had to do some metal working.And after making use of some zip connections for the back.
wheel, whatever seems rather tight and safe. So lastly I added a large slab.
to the back of this timber construction onto which I after that straightened the car generator, before.
I secured it in location with metal braces and a pair of screws.
And easily the basics bicycle powered. generator configuration was full. So I once more connected my multimeter to. the result of the generator and turned the wheel as rapid as possible yet as you can see. we still got no result voltage from the generator although I got to an RPM of around 1500.
Currently the reason is in fact fairly straightforward to. understand and can be experienced when we
transform the rotor which does not oppose any kind of kind. of resistance. However when we for instance turn
a BLDC electric motor. on our own then we can feel some kind of resistance which results from the utilized long-term magnets. which are in fact necessary to develop an output voltage with a generator.Now the auto generator does not feature such. irreversible magnets however its rotor includes an exciter coil that we can power with a DC.
voltage and therefore current in order to transform it right into a magnet. But after doing a great deal of research
online about. my particular auto generator, I found rather much no information on what
pin to make use of for. that, so I had to do some experiments and as it ends up the upper pin below seems to. be in some way attached to the exciter coil. So I simply used 12V to it while I linked. the minus pole to the chassis and as you can see we get the resistance we were looking. for and we can also produce a DC result voltage, awesome.That indicates that after using this knowledge. to the bike configuration, we can lastly develop some power.
As a guinea pig I chose this 12V 21W. light bulb which after connecting it to the alternator and a power meter, can evidently. get powered by this system without a problem yet utilizing my hands to pedal was not really.
the most effective remedy anymore. So it was time to buckle down; and after I. found out exactly how to effectively rest on this bicycle building and construction, I had the ability to create
a maximum. power of around 20W for a brief moment. Yet see just how the exciter coil present adjustments. frequently and thus destroying my initiative to pedal at a constant price.
The reasons is the regulator circuit of the. alternator. When used with a car, it
is utilized to essentially. produce a continuous 12V outcome voltage regardless of if drive at a lower RPM
of 2000 or a higher. RPM of 5000 by simply adjusting the exciter current.But considering that I am
using a bicycle, this control. circuit is just a hindrance which is why I desire to avoid it and straight power the
exciter. coil. And after mistreating the alternator rather.
a little bit, I found the 2 cords which were directly linked to the coil and thus I proceeded.
the bike test by using them. As you can see with an exciter current of. 1A I obtained an ordinary power of 8W, with 2A around 12W and 3A did as soon as again just deliver 8W. because the resistance was evidently also large which caused the belt to slip.But with a current of 2A I had the ability to develop.
a consistent max power of around 20W whereupon it was really a great exercise.
That implies given that I personally call for about. 2500kWh of power per year for my home, I would need to ride my bike generator configuration. for around 14.27 years to produce that amount of energy
. But only of we disregard that we likewise need 12W. of power for the exciter coil which
makes this generator setup nearly pointless; except
. maybe if you intend to charge up your phone.But overall I ultimately obtained my bike generator. system thanks to the comment section and
I wish that you learned a point or more too. through this video clip. If so put on ' t fail to remember to like, share, subscribe. and hit the alert bell. Remain creative and I will certainly see you following time
.