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Author Topic: Gadolinium Magnet Generator.  (Read 136459 times)

synchro1

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Re: Gadolinium Magnet Generator.
« Reply #30 on: April 06, 2015, 07:19:01 PM »
http://www.google.com/patents/US3743866

@ekimtoor1,

This Is a very interesting patent. It dates back to 1973 before the current advances in MCE. Two separate rotor magnets in attraction, rather then opposition like the patent, with Gadolinium in between at the currie point, would both be attracted to the Gadolinium. The nearly instantaneous heating from the permanent magnet field would eliminate the ferromagnetic attraction of the Gadolinium and perhaps allow the two rotors to slip by depending on their separation distance and the thickness of the Gadolinium.

This approach would result in low torque because the Gadolinium would need to change temperature again in time for the next pair
of rotor magnets instead of having a full revolution for the transition. This design would depend heavily on the efficiency of the heating electrodes. Nice find! Thank you. 

ekimtoor1

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Re: Gadolinium Magnet Generator.
« Reply #31 on: April 06, 2015, 07:23:16 PM »
I researched the transition speed of gadolinium and found a few things, nothing I could understand.  Does anyone know the speed of the transition from ferromagnetic to non and vice versa?  I've read that gadolinium will be cooler on exiting the magnetic field than when it arrived.  Is this true?

I ordered a couple of the coins so I can do some hands on with the stuff.

@synchro1 - glad I could contribute something useful! You are welcome!

memoryman

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Re: Gadolinium Magnet Generator.
« Reply #32 on: April 06, 2015, 07:26:20 PM »
I have trouble finding the exact specs for these alloys and metals re the speed of heating; "nearly instantaneous heating from the permanent magnet field" do you have specs for that?
I have some ideas, which I'll be happy to share, but they depend on the characteristics of the materials.
Bill

ekimtoor1

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Re: Gadolinium Magnet Generator.
« Reply #33 on: April 06, 2015, 07:37:53 PM »
if a small peltier module was fixed to gandolinium, would the heat flow efficiently enough from the gandolinium into the peltier (could harvest  a few electrons too) to allow it to come back below the curie point in time to cycle the next rotor magnet? 


synchro1

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Re: Gadolinium Magnet Generator.
« Reply #34 on: April 06, 2015, 08:56:59 PM »
Here´s Tesla´s version:

Diagram from Tesla's patent of 1889.

"Assume that we start with the armature A attracted to the magnet N. A is heated by the gas burner H, loses its magnetic properties and is pushed up and away from magnet N and burner H by the spring W. A then cools, becomes magnetic again, and is attracted back to the magnet, where the burner starts to heat it up again. The cycle turns the flywheel 13 through connecting rod 12".

synchro1

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Re: Gadolinium Magnet Generator.
« Reply #35 on: April 06, 2015, 09:03:24 PM »
"Modern thermomagnetic engines are not reciprocating like Tesla's proposal, but produce continuous rotation. The ferromagnetic material is a rotor in the form of a ring or cylinder, which moves into a magnetic field created by permanent magnets. It is heated at one point so that it has lost its ferromagnetism when it leaves the field. There is therefore a steady net pull on the rotor, causing it to turn on its axis. The rotor is then cooled and regains its ferromagnetism before it re-enters the magnetic field".

"A practical version of this can generate 100W of power at 1.5 revolutions per second". What do you notice about the motor schematic below? There's no power source!

Based on this factor, I feel it's safe to assume a rotor of multipal Gadolinium studs should be capable of at least 90 RPM just from the MCE effect alone. 100 continuous watts generated non stop night and day would equal a roof full of solar panels. This kind of motor would tie into a "Tesla Home Battery" very nicely.

synchro1

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Re: Gadolinium Magnet Generator.
« Reply #36 on: April 06, 2015, 09:36:22 PM »
Look how the MCE and Gadolinium would improve the obscure "Tesla Patent" above. Tesla has an iron armature and a gas burner. A horseshoe magnet and Gadolinium armature at the Currie point attached to a spring would drive the flywheel like crazy with no input at all!

memoryman

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Re: Gadolinium Magnet Generator.
« Reply #37 on: April 06, 2015, 09:43:22 PM »
synchro1, where is the math to support the "100W"? A rooftop of solar cell can supply KWs of power, a lot more than 100W.
I am not optimistic that this can supply any net energy, or be economical, especially given the price of Gadolinium at ~ $1/gm.

ekimtoor1

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Re: Gadolinium Magnet Generator.
« Reply #38 on: April 06, 2015, 10:02:22 PM »
Gadolinium is not consumed so it does not seem it's price makes much difference...

Does a supercap release any heat as it is charged?

synchro1

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Re: Gadolinium Magnet Generator.
« Reply #39 on: April 06, 2015, 10:05:26 PM »
@memoryman,

That would depend on the size of the roof and the efficiency of the panels compared to the size of the Gadolinium rotor and power of the permanent magnets. The big advantage of the magnet motor over the solar panels is of course it's ability run through the night and on rainy days.

The "Tesla Reciprocater" looks like a winner with only one piece of costly Gadolinium required to power a flywheel.

synchro1

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Re: Gadolinium Magnet Generator.
« Reply #40 on: April 06, 2015, 11:01:09 PM »
Gadolinium is not consumed so it does not seem it's price makes much difference...

Does a supercap release any heat as it is charged?

@ekimtoor1,

Here's a quote from Wikipedia: I see your point.

"Ripple current causes heat to be generated within the capacitor due to the dielectric losses caused by the changing field strength together with the current flow across the slightly resistive supply lines or the electrolyte in the capacitor".

ekimtoor1

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Re: Gadolinium Magnet Generator.
« Reply #41 on: April 06, 2015, 11:05:41 PM »
Seems there are two ways. Cool something or heat something. I was thinking about recycleable heat sources that might exist in a design using GD.

Yes thanks synchro. I figured there had to be some.

There's gonna be like a heat spike at the GD right?  A rotor cycling at whatever speed the GD transition occurs and then altering the temp in the GD at that speed is a strange thing to think about. 

An infrared flash of sorts I guess?

DreamThinkBuild

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Re: Gadolinium Magnet Generator.
« Reply #42 on: April 06, 2015, 11:50:38 PM »
Hi All,

Lots of interesting ideas here.

A couple ideas came to mind on how to use this material. One is to take a cylinder of the material and place a north and south magnet at each end and wrap a coil around it. Then submerge it between cold and hot water. It should generate a pulse as it transitions from each state. That idea needs some form of mechanism to run though.

The next idea which is drawn out is pretty much mechanics free except for a heat source on the fins the water could be a cold stream. If it does work it would be more of an energy harvester than a power source. Not sure if it's half baked idea yet. I ordered a cylinder from the Metallium Inc. link above to experiment with so maybe in another week I'll be able to do some tests.

Thanks Synchro for starting this topic.

synchro1

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Re: Gadolinium Magnet Generator.
« Reply #43 on: April 07, 2015, 03:07:18 AM »
@DreamThinkBuild,

                             I'm very excited by your new concept. Can't wait to see how it develops. Good luck!

Pirate88179

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Re: Gadolinium Magnet Generator.
« Reply #44 on: April 07, 2015, 05:38:29 AM »
Patent for a gadolinium magnetic motor:  http://www.google.com/patents/US3743866

You can buy $20 1/10 ounce gadolinium coins here:  http://www.elementsales.com/index

At that same site you linked to, you can get a 50 gram ingot (almost 2 oz) for $38.00.  Also, a nice machined rod 1/2" dia x 1" long
25 grams (almost 1 oz.) for $58.  It appears that the ingot is the best deal in my opinion.




Bill