One magnet motor that does not break any thermodynamic rules

AI Thread Summary
The discussion centers on the potential efficiency of a magnet motor utilizing superconductive magnets. Participants question the thermal aspects of the mechanism and express skepticism about its practicality due to the need for liquid helium to achieve superconductivity. Concerns are raised regarding the limitations of magnetic saturation in materials like nickel, which may hinder efficiency. Although the theoretical energy conversion efficiency of certain alloys is low, there is speculation about niche applications, such as powering small generators for mobile devices in off-grid situations. Overall, while the concept is intriguing, significant practical challenges remain.
rolnor
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I am wondering how efficient this engine can get, I am thinking if one used a superconductive magnet that is really strong?
 
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Re-opening the thread for a simple scientific discussion...
 
rolnor said:
I am wondering how efficient this engine can get, I am thinking if one used a superconductive magnet that is really strong?

Questions for you:

1) What is Thermal/Thermo avout this mechanism?

2) It appears to be a simply synchronized weak motor. What am I missing?

3) Superconducting magnets in motors could be more efficient. Why aren't they used now? (The answer is not that scientists and engineers are missing something obvious)
 
This looks about as efficient as the bobbing duck engine
 
My first thought is that the magnetic saturation of the nickel is likely a more limiting factor than type of magnet.
 
The third question; Today its neccesary to use liquid helium to get a superconductive to work.
 
rolnor said:
The third question; Today its neccesary to use liquid helium to get a superconductive to work.
Correct! Yeah, not very practical for most motor application... :smile:
 
  • #10
Khashishi said:
Interesting. Too bad the energy conversion efficiency is so low, but still an interesting mechanism for some situations...
The theoretical energy conversion efficiency of the Heusler alloy was calculated to be 0.2% under an external field of 3kOe, increasing to 0.8% under a field of 15kOe.
 
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  • #11
berkeman said:
Interesting. Too bad the energy conversion efficiency is so low, but still an interesting mechanism for some situations...
Maby this type of engine can bee used to power a very smal generator to load a mobilphone where there is no electricity available? Maby at night when solarcells does not work?
 
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