6 k A电流引线的运行电流为6 k A,最大电流为8 k A,其换热器段采用液氮冷却设计,运行温区为77 K—室温,高温超导段为传导冷却,运行温区为5—77 K。介绍6 k A电流引线的结构设计、性能分析,以及相关低温实验。实验结果表明,6 k A电流引...6 k A电流引线的运行电流为6 k A,最大电流为8 k A,其换热器段采用液氮冷却设计,运行温区为77 K—室温,高温超导段为传导冷却,运行温区为5—77 K。介绍6 k A电流引线的结构设计、性能分析,以及相关低温实验。实验结果表明,6 k A电流引线的零电流下液氮需求低于0.46 g/s,5 K冷端漏热小于2.5 W,过流能力8 k A。展开更多
The HTS current leads of superconducting magnets for large scale fusion devices and high energy particle colliders can reduce the power consumption for cooling by 2/3 compared with conventional leads. The resistive se...The HTS current leads of superconducting magnets for large scale fusion devices and high energy particle colliders can reduce the power consumption for cooling by 2/3 compared with conventional leads. The resistive sections of high-rated current leads are usually made of a heat exchanger cooled by gas flow. The supply of the cooling mass flow incurs more than 90% of the cooling cost for the HTS leads. The mass flow rate requirement depends not only on the length and material of the resistive heat exchanger, but also on the heat transfer coefficient and HEX surface, the joint resistance at the cold end of a sheet-stack HEX with a larger specific presented in the paper. The test results of efficiency can be achieved. and its cooling approach. The design and operation surface and a much smaller hydraulic diameter are an HTS lead optimized for 8 kA show that a 98.4%展开更多
文摘6 k A电流引线的运行电流为6 k A,最大电流为8 k A,其换热器段采用液氮冷却设计,运行温区为77 K—室温,高温超导段为传导冷却,运行温区为5—77 K。介绍6 k A电流引线的结构设计、性能分析,以及相关低温实验。实验结果表明,6 k A电流引线的零电流下液氮需求低于0.46 g/s,5 K冷端漏热小于2.5 W,过流能力8 k A。
文摘The HTS current leads of superconducting magnets for large scale fusion devices and high energy particle colliders can reduce the power consumption for cooling by 2/3 compared with conventional leads. The resistive sections of high-rated current leads are usually made of a heat exchanger cooled by gas flow. The supply of the cooling mass flow incurs more than 90% of the cooling cost for the HTS leads. The mass flow rate requirement depends not only on the length and material of the resistive heat exchanger, but also on the heat transfer coefficient and HEX surface, the joint resistance at the cold end of a sheet-stack HEX with a larger specific presented in the paper. The test results of efficiency can be achieved. and its cooling approach. The design and operation surface and a much smaller hydraulic diameter are an HTS lead optimized for 8 kA show that a 98.4%
