Development of a cryogenic test bed for high amperage critical current measurement on high temperature superconductor wire
Cryogenics(2009)
摘要
Many areas of research have benefited from the application of conduction-cooled superconducting magnet technology. The middle and small-scale magnets immersed in the liquid helium will be replaced by the easy-operating conduction-cooled superconducting magnet due to convenient operation, lower operating cost and easy for user. For the goal of superconducting magnet applications in the advanced testing for high temperature superconducting (HTS) wire and sample coils, a wide bore conduction-cooled superconducting magnet with available warm bore of ϕ 186 mm and center field of 5–6 T for background magnetic field applications was designed, fabricated and tested. The system allows measurements to be performed in a repeatable and reliable fashion. In order to support the high stress in magnet, the detailed finite element (FE) analysis with electro-plastic model is proposed. The sample cryostat is designed with cryofree. It includes two GM cryocoolers. The detailed design, fabrication and thermal analysis are presented in the paper. Keywords Conduction-cooled superconducting magnet HTS test devices FEM electro-plastic model
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关键词
Conduction-cooled superconducting magnet,FEM electro-plastic model,HTS test devices
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