Yong He, Zhaonan Meng, Peng Zhang, Quqin Sun, Xingjian Zhou. Investigation on fast cooling method for pulsed magnet based on heat transfer of flowing liquid nitrogen in micro-channels[J]. High Power Laser and Particle Beams, 2022, 34(11): 115002
- High Power Laser and Particle Beams
- Vol. 34, Issue 11, 115002 (2022)
Fig. 1. Structure of the designed magnet
Fig. 2. Temperature distribution of the magnet at the end of discharge, initial temperature is 77 K
Fig. 3. Deposited energy for each layer conductor of the magnet at the end of discharge
Fig. 4. Temporal evolution of average temperature of the magnet conductor during intermittent running process
Fig. 5. Model for the cooling processing simulation for the designed magnet (1st～20th layer)
Fig. 6. Temperature of the 1st~20th layer after 1 s heating with 80 kW
Fig. 7. Cooling processing of magnet conductors (1st~20th layer model)
Fig. 8. Temperature of the 8th~9th layer after 1 s heating with 12 kW
Fig. 9. Cooling processing of magnet conductors (8th~9th layer model)
Fig. 10. Scaled pulsed magnet
Fig. 11. Discharged current of the scaled pulsed magnet
Fig. 12. Cooling processing of the magnet with 3 kinds of cooling method
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Table 1. Thermal properties of copper and epoxy under different temperatures
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