Speaker
Description
Understanding quench dynamics in high-temperature superconducting (HTS) conductors is pivotal for their reliable integration into next-generation superconducting magnets. In this work, we present electrical and thermal simulations of Bi-2212 conductors during a current ramp to thermal runaway quench and compare them with test results. Bi-2212 conductors analyzed include a single round-strand and a Rutherford cable. We then compare the results obtained from Bi-2212 to those of single-tape REBCO tapes and two-ply REBCO conductors. We use our analysis to address quench detection thresholds and time scales during which thermal runaway can be contained to prevent conductor degradation. Furthermore, we investigate the impact of varying factors such as cooling conditions, the n-value, and the long-length critical current distribution on quench development and detection. Our work provides useful insights into the complex quench processes in HTS conductors and offers practical guidelines for detecting, managing, and mitigating quench events in advanced superconducting magnet systems.
