金属绝缘嵌套REBCO线圈中超过40T磁体的电热淬灭
Electro-thermal quench in metal-insulated nested REBCO coils for magnets over 40 T
AI总结:
本文提出了一种嵌套堆叠的REBCO线圈设计,用于提高超过40T磁体的热稳定性和紧凑性,并通过多物理场分析识别了热淬灭的薄弱点及解决方法。
摘要:
超导高场磁体有能力产生超过40T的磁场,已在全球范围内有多种实际应用。然而,在如此高的磁场下,这些磁体容易发生快速的电热淬灭,这会影响此类磁体的连续运行。一种嵌套堆叠配置,即多个高温超导体(HTS)插入件嵌套在低温超导体(LTS)外层中,可用于提高热稳定性和紧凑设计。我们使用自行开发的软件对SuperEMFL项目中的此类嵌套堆叠高场磁体设计进行了详细的多物理场淬灭分析,该软件考虑了屏蔽电流。通过各种案例研究,我们识别了此类磁体中的各种薄弱点,其中热淬灭对磁体运行最具破坏性,并提出了多种解决这一重要问题的方法。
英文摘要:
Superconducting high field magnets have the capability to generate over 40 T, with multiple existing practical applications globally. However, at such high magnetic fields, these magnets are prone to rapid electrothermal quench which can affect the continuous operation of such magnets. A nested stack configuration, with multiple HTS inserts inside a LTS outsert, can be used for better thermal stability and compact design. We have performed detailed multiphysics quench analysis of such a nested stack high field magnet design under SuperEMFL project using our in-house software, which considers screening currents. Through various case studies, we have identified various weak spots in such a magnet, where thermal quench can be the most detrimental for magnet operation, and various ways are suggested to overcome this important issue.
机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。