Magnetic Refrigerator Needs No Electricity

[lumen]

These should also work really well for a heat pump for household heating because at -450F a good winter temperature of -20F would be about the same as fire heating the unit.

[Tinker]

Suppose you were to mount a lump of MCE material with an appropriate Magnet to the heat end of a linear Sterling Engine setup as a substitute for a "conventional" heat source.

Would it be a Fuelless Engine if it worked.

To get the cooling effect they need the heat and cooling effect, and they need to alternate the magnetic field, or the MCE material to make that happen (Requires Energy).

If all you want is the heat you may not need that to take place, and keep both materials stationary, and even if you do need movement it could be as simple as a bimetallic spring changing the orientation of the components.

(Additional Thought)

Use the MCE material as the piston in the Sterling?

I know that this is not that simple, just figuring out the MCE material is well beyond my pay grade, but it appears that this MCE concept has been around since before the space program and I found a lot of information on-line well beyond the link below.

http://en.wikipedia.org/wiki/Magnetic_refrigeration

Just some random thoughts.

Be Well
Tinker

[FriZer]

            This refrigerator is really convenient. No electricity save a lot of energy. A ordinary refrigerator really consumes a lot of electricity not like the other appliances.

[sm0ky2]

Is that Wiki link accurate?

3 to 4 Kelvin per Tesla

that in an of itself screams "OU"
(not really, but "free energy" none the less)
wether it be in a sterling, or a peltier
the cold side of a heat pump,
thermophotonics, or hundreds of other posible applications where it would be considered "free energy".

yes, sure you need energy to move the physical magnet, or power the dimmer-switch on your electromagnet...

but if the thermal exchange occurs for a fraction of the standardized energy levels, then the equation falls apart.
you now have an additional variable on one side of the equation.
Namely, the Heat-to-Flux conversion factor of the gadolinium-silicone alloy, when interacting with an external magnetic field.

certainly there is an underlying "universal constant" or heat to  flux vs permeability or something of the sort,.
they'll name it after some scientist that figures it all out.

but in the meantime, lets hook one of these MCE's to the cold-side of a thermoelectric generator.
loop it back to the electromagnet, and have a fieldday with the extra heat it draws from the local environment while creating electricity.

like an A/C unit + Power Source

100% of the extra energy can be accounted for, environmentally.
but unless or until your environment reaches a temperature close to or equal to the temperature of the MCE material, it will continue to generate power. Much more than it costs to create the effect.

[what123]

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