Thermal analysis
Alpha Magnetics Engineering provides accurate thermal analysis for all of the products and systems we design:
- cooling circuit computation (air cooling, water cooling, cryogenics)
- Quenching process for Superconducting technologies
Example of Quenching of SuperConductive coils (SC)
Transient thermal and electromagnetic simulation of superconducting magnets
60 degree access and exit angles
Main coil pair – 8168 turns/coil
Correction coil pair – 1365 turns/coil
C361 superconducting wire (2:1 Cu:NbTi)
Peak Field 5.6T
Total inductance 98Henries
Central field 2.5T
A quench is initiated using a thermal heater, and thereafter the temperature rise is modelled as time progresses. The critical current is defined as a function of both temperature and magnetic flux density, and is used to determine the material properties as they transition from superconducting to resistive.
Note that all the coils quench in this example, and that the coupled coils quench because dB/dt losses raise them above critical temperature
