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  • Quantum_well
    replied
    Losses.
    Consequently, windage – which is the displacement of air by any rotating components in the motor – tends to be one of the larger contributors to total losses. For example, a motor that loses just 10 W to windage at 1,000 RPM will lose 80 W at 2,000 RPM, 640 W at 4,000 RPM, 5,120 W at 8,000 RPM, etc. This rapid worsening of efficiency from windage losses acts as a powerful counterbalance to the otherwise tempting prospect of squeezing more power out of a motor by operating it at a higher RPM.

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  • Turion
    replied
    I didn’t foresee the opposition magnets getting hot. I didn’t see it when running the generator only 20 minutes at a time. Thats a really BIG problem. I guess I have some experimenting to do. Been thinking of ways to use the rotor to do some air cooling. But I will leave all that up to those with experience.
    Last edited by Turion; 02-25-2021, 06:59 AM.

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  • alexelectric
    replied
    Well, the video is no longer available, Mr Dave, but very interesting what you say about core heating and the search for solutions.

    But there is also heating in the repulsive magnets, when operating the generator project, and testing with the support magnets to reduce the core-magnet drag, the magnets get hot, I have not carried out more tests, I do not know how much they could affect to the generator, it's a matter of continuing with more tests, I don't know if you Mr. Dave already foresaw it
    Last edited by alexelectric; 02-25-2021, 05:26 AM.

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  • Turion
    replied
    Next video
    https://youtu.be/SCdoFRVhsyw

    Fixed it. Sorry.
    Last edited by Turion; 02-25-2021, 06:42 AM.

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  • Quantum_well
    replied
    Thank you Turion. I've been looking at your videos and appreciate the amount of time and money you've put in.
    You find time to give detailed replies and you've been hard at it with the work on your house too.
    What I've found is the necessity to do a huge amount of research before investing in hardware in order to get the best value and performance.

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  • Turion
    replied
    bro,
    oops! I ordered the OTHER one you linked to.

    Quantum,
    Not so! I appreciate your input on the motor and motor controller. I realize a direct shaft connection will work better and be more efficient. I agree with everything you’ve said about that and have actually bookmarked the specific products you have posted. I have been researching motors to find what I need at the best price. In most cases I have actually put them in my cart at that site.

    My problem is finances. I have a monthly budget for this stuff, and I have to prioritize. Getting a working core material that I don’t have is more important to me than replacing a motor I DO have with a better one. Same goes for a motor controller when I have a couple already that will WORK. To do a direct drive motor I would have to fabricate or have fabricated a new motor mount. It’s just that other things have to come first. If the core material works, I may be able to remove material from current bobbins. If not, I have no more bobbins, so that would be next. Then more wire. Then I could look at replacing the mount, the motor and a better motor controller.

    Unfortunately, at the SAME TiME, I am funding another energy project that makes this one obsolete and it requires paying an electrical engineer to design and build some specific pieces, and that does not come cheap! I just spent $800 on THAT project. I would put ALL my resources into THAT project if I hadn’t promised Aaron I would present at the conference. The generator will do what I have claimed it will do with the motor I have and the controller I have and the coils I have. I shouldn’t have to run it for more than about 20 minutes at the conference and it won’t overheat in that amount of time.

    I could have put together a fake video that shows all the results I have claimed, but I haven’t. Because I believe people need to test these concepts for themselves. Some will. I imagine after the conference a lot more will. I can’t wait.

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  • Quantum_well
    replied
    Hi, I realise you're not interested in my ideas for upping the efficiency of your set ups but I felt that this idea I came across was too good not to share. A grandson was playing with my headphones and they broke.
    I tacked th IMG_20210224_104839~2.jpg e break with a bit of Supafix (superglue and powder) Then I wrapped a good amount of black thread round the break, and this is the magic bit, give the thread a soak with superglue and dab dry with some tissue.

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  • Turion
    replied
    https://www.ebay.com/itm/NOS-Nationa...oAAOSwWTRWx3rW

    On its way.

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  • BroMikey
    replied
    42 and alloy 50 means cheaper. this is what we want 50:50 not 100% sure new open box stats missing. generally the nickel content is given a % number, lots 99% out there stay away.

    https://www.ebay.com/itm/25229320967...kcid=28&chn=ps


    https://www.ebay.com/itm/NOS-Nationa...oAAOSwWTRWx3rW

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  • Turion
    replied
    My goal right now is just to come up with cores that will run without heating up. I don’t care what the output is as long as it doesn’t go down too much. As long as the COP is up there it will be a prototype that people will pay attention to. Let others figure out all the needed changes. I just want a working prototype that shows the concepts work and won’t break down every five minutes. I have that even with iron cores. I can run it for about 20 minutes with no danger of melting cores, and that’s good enough. I will try that wire on two coils and see what I get. My friend who has a duplicate machine us trying all kinds of things. I’m sure he will keep after it.

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  • BroMikey
    replied
    Originally posted by Turion View Post
    How many cores for $100? That’s 2 lb spool. The permalloy BB’s are $1,010 for 5 pounds. So that’s cheaper.
    That is why the space age ribbon was produced. It lowers costs. the wire is better than nothing. Now back to the increase. A faster responding core that the usual heat is stored in the magnetic field make it speed up sooner. It will still work on your longer coils. However as speed up is sooner an overall shorter coil lets you increase the amps right there. So that is another extra. You will get higher peak volts and double the amps.
    Last edited by BroMikey; 02-24-2021, 03:50 AM.

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  • Turion
    replied
    How many cores for $100? That’s 2 lb spool. The permalloy BB’s are $1,010 for 5 pounds. So that’s cheaper.

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  • BroMikey
    replied
    Originally posted by Turion View Post
    I should add something to all that, and no disrespect to Thane intended,

    I am not trying to discourage you bro, but what you need to figure out is how to build a coil that puts out WAY more than 130 volts at 1.5 amps
    thx Dave onward and upward. Make it work 10 minutes at a shot but that heat that melts the coil should be collected in the form of electricity. 50% increase right there. Nickel steel not steel cores.

    mig wire spools for welding cast iron is 45% nickel content, cheap test. I I had an extra $50,000 I would send it to you so you could hire something done asap, tic tok

    https://www.google.com/shopping/prod...ZwOA1wQ9pwGCAU
    Last edited by BroMikey; 02-24-2021, 03:19 AM.

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  • Turion
    replied
    I should add something to all that, and no disrespect to Thane intended, because I know he has coils that out perform ANYTHING I have built, but they would HAVE to. I say this because I BUILT the generator with 12 coils on it that are ALL neutral. Meaning they output the MAX amount possible for those coils. The motor was drawing almost 1,000 watts to run, and was right on the ragged edge of burning up. The speed had dropped down to the point where the output of the coils didn't cover the input to the motor. No OU. Not even close. And that was with 12 speed up under load coils. This was BEFORE I had the neutralizing magnets. I still have that original machine which doesn't even have PLACES on it for neutralizing magnets. It didn't give me what I was searching for.

    Now I could adjust the coils on that machine and get them to assist the motor, but at the cost of the output going down, so it STILL didn't output more than the input. The very BEST I could do was to get the coils to REALLY speed up the motor to the point that its amps draw was back down to around where it should be and its RPM was close to the rated speed, BUT there was definitely no output above the input. And believe me I tried everything I could think of. For almost a year I worked on it. Then I went looking for a solution to the motor drawing 1000 watts to run, and I found a patent that addressed that issue with magnetic neutralization. So I incorporated THAT into my design and it worked.

    I believe what I see on the bench. I can't replicate Thane's stuff because he doesn't share the construction of his coils. I know, because I have ASKED and been told "No" I believe what I can see for myself. Not what someone tells me is true. I give them the benefit of the doubt BUT then I build it to see for myself. Or at least I USED to. No more going down all those different paths for me. I do not know if Thane's stuff works or not. I cannot replicate it and therefore I have NO opinion. But I DO have questions.

    Now I have my generator, which I know works, and I have tech with no moving parts based on what we learned with the 3 battery stuff that is way more productive. So I don't need or want anybody else's stuff. I WOULD like to see how Thane's coils work with magnetic neutralization thrown in, but that is already in progress, and some day I will find out. Someone else is working on that who has first hand knowledge of Thane's technology, so I will leave it up to them.

    I am not trying to discourage you bro, but what you need to figure out is how to build a coil that puts out WAY more than 130 volts at 1.5 amps for an input to the motor of 360-400 watts. Until you do that, you will NEVER reach OU without magnetic neutralization. Thane may know how to do that and good for him.I couldn't figure it out. And I'm DONE with this project except for presenting at the conference.
    Last edited by Turion; 02-24-2021, 02:13 AM.

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  • Quantum_well
    replied
    Turion, thank you so much for that detailed explanation. I'll re read it tomorrow when I'm less tired. My health isn't that great these days and the wind and wet this winter has worn me down.
    I'm adding a video to this message which I hope you will watch. This demonstrates the benefit of good motor control. A motor that is well controlled is almost silent as you will see. I'd like to see you with a similar motor mounted on the generator shaft thus doing away with a couple of bearings and a drive belt . It's important to determine the optimum speed for the efficiency of your generator which would be easy with a vesc.
    https://youtu.be/Iz5bg0DGnp4

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