Calculate power required to operate superconducting magnet

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SUMMARY

The discussion focuses on calculating the power required to operate superconducting magnets, specifically in the context of achieving low power requirements compared to traditional electromagnets. The user highlights the challenges of using the formula P=U*I and I=U/R for superconducting magnets, noting that the extremely low resistance (1.0e-02 ohms) leads to impractical amperage levels. Additionally, the user references typical MRI devices that operate at 50-150 Amperes and 20-50 volts, emphasizing the need for a deeper understanding of the power dynamics involved in superconducting electromagnets, particularly regarding the refrigerator's power consumption.

PREREQUISITES
  • Understanding of superconducting magnet principles
  • Familiarity with electrical formulas, specifically P=U*I and I=U/R
  • Knowledge of electromagnet specifications, including Tesla ratings
  • Basic concepts of refrigeration systems used in superconducting applications
NEXT STEPS
  • Research the power requirements for superconducting magnets in detail
  • Explore the refrigeration systems used in superconducting applications
  • Learn about the mechanical capabilities of 7-9 Tesla electromagnets
  • Investigate the differences in power consumption between traditional and superconducting electromagnets
USEFUL FOR

Engineers, physicists, and researchers involved in the design and operation of superconducting magnets, as well as those interested in optimizing power consumption in electromagnetic applications.

losbellos
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Dear Friends,

The great problem lies in here : I have calculated the power requirement of an electromagnet. That Its huge . To minimize this power requirement I would like to see if its possible with super conducting magnet, but I am having a problem, because the power requirement are so low, that it cannot be, and also the turns naturally not valid, Only the Resistance which is very low 1.0e-02x.

So having the resistance and the Amperes required using the P=U*I and I = U/R (remember its DC)
then the power would be very low, that the amperes are simply not possible in real life.
Against this I also happen to know the usual MRI devices uses 50-150 Amperes and some 20-50 volt. This makes some sense but in terms of power requirement still not.

A 7-9 Tesla electromagnet have incredible mechanical capabilities as well.

So, say I would like to have a magnet which can lift 1 tons from 2 meter.

Anybody can help how to calculate this out with superconducting electromagnets?
 
Physics news on Phys.org
The power to run these magnets is determined by the power of the refrigerator, not the resistive losses in the magnet.
 
thx I look into it.
 

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