Current Leads Cooling for the Series-Connected Hybrid Magnets

被引：6

作者：

Bai, Hongyu ^{[1
]}

Marshall, William S. ^{[1
]}

Bird, Mark D. ^{[1
]}

Gavrilin, Andrew V. ^{[1
]}

Weijers, Hubertus W. ^{[1
]}

机构：

[1] Florida State Univ, Natl High Magnet Field Lab, Tallahassee, FL 32310 USA

来源：

ADVANCES IN CRYOGENIC ENGINEERING | 2014年 / 1573卷

关键词：

Current Lead; Series-Connected Hybrid; HTS Current Lead; BSCCO;

D O I：

10.1063/1.4860913

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Two Series-Connected Hybrid (SCH) magnets are being developed at the National High Magnetic Field Laboratory. Both SCH magnets combine a set of resistive Florida-Bitter coils with a superconducting outsert coil constructed of the cable-in-conduit conductor (CICC). The outsert coils of the two magnets employ 20 kA BSCCO HTS current leads for the power supply although they have different designs and cooling methods. The copper heat exchangers of the HTS current leads for the HZB SCH are cooled with forced flow helium at a supply temperature of 44 K, while the copper heat exchangers of HTS current leads for NHMFL SCH are cooled with liquid nitrogen at a temperature of 78 K in a self-demand boil-off mode. This paper presents the two cooling methods and their impacts on cryogenic systems. Their efficiencies and costs are compared and presented.

引用

页码：1707 / 1712

页数：6

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