直接冷却的高温超导磁体热稳定性有限元仿真  

Simulation on the thermal stability of the superconducting magnet directly cooled by cryocooler based on FEM

作　　者：唐斯密[1] 吴钢[1] 王惠龄[2] 黄平[1] 张青枝[1] 

机构地区：[1]海军工程大学机械工程系,武汉430033 [2]华中科技大学制冷与低温工程研究所,武汉430074

出　　处：《低温与超导》2006年第6期446-450,463,共6页Cryogenics and Superconductivity

基　　金：国家863高技术研究发展计划(2002AA306331-4)资助;国家自然科学基金项目(51076013)资助

摘　　要：制冷机直接冷却超导磁体是一门新兴技术,研究超导磁体在直接冷却下的热稳定性具有重要意义。用有限元方法解决复杂边界问题的热力学问题非常有效,而有限元分析软件ANSYS能使得用有限元法解决问题更加方便。该文用有限元方法对直接冷却高温超导磁体进行了热稳定性数值仿真。仿真结果表明,在设定热负荷作用下,直接冷却的B i2223系高温超导磁体具有较好的热稳定性,磁体温度低于其临界温度。The superconducting magnet system directly cooled by cryo - cooler is a rising technology, it makes sense to study the thermal stability of the superconducting magnet when superconducting magnet suffered heat load. Finite element method（ FEM ） is a very useful method to resolve complicated boundary condition problem. With FEM analysis software ANSYS, it is easy to solve the problem with FEM. In this paper, Simulation of heat stability is applied to the directly cooled high Te magnet based on FEM. According to the simulated result, The Cryo - cooler Superconducting Magnet manifests preferable thermal stability under certain scale of thermal loading, the temperature of superconducting magnet will not exceed the Te.

关 键 词：高温超导磁体 直接冷却 有限元 ANSYS 

分 类 号：TB651[一般工业技术—制冷工程]