Quench Analysis of the Hybrid-Magnet Superconducting Outsert

Quench Simulation of the Hybrid Magnet Superconducting Outsert Being Built in China

“…The co-wound wire method was used to distinguish the quench signals from the disturbance signals. Early on, the quench analysis is shown that the C conductor has the maximum hot spot temperature compared with the other conductors with the same threshold voltage and delay time [12]. Therefore, we focus on the quench behavior of the C coils of the superconducting outsert.…”

“…There are 12 cooling channels for the C coils; each channel has six pancakes with the same length [12]. The 12 cooling channels are symmetric about the mid-plane.…”

“…[12] for the quench analysis. The friction factor and the AC losses in the C coils can be characterized by Katheder correlation [16], which can be described as in [17].…”

“…Figure 2 shows the current sharing temperature and magnetic field along the cooling length of the SP1 channel at 14,680 A. It is shown that the minimum current sharing temperature is about 6.45 K. The adiabatic hot spot temperature criterion and the 1-D GANDALF code were used to evaluate the quench propagation behavior [12,18]. The GANDALF code has been extendedly used in many laboratories for quench analysis of the CICC conductors [19][20][21][22][23][24].…”

“…A 40 T hybrid magnet project is being built at the High Magnetic Field Laboratory, Chinese Academy of Sciences [11]. The hybrid magnet consists of an 11 T superconducting outsert magnet and a resistive-insert, water-cooled magnet [12]. The superconducting outsert will produce 11.0 T central field at 13,410 A with a warm bore of 800 mm in diameter.…”