The design and testing of a cooling system using mixed solid cryogen for a portable superconducting magnetic energy storage system

被引：23

作者：

Kim, K. L. ^{[1
]}

Song, J. B. ^{[1
]}

Choi, J. H. ^{[2
,3
]}

Kim, S. H. ^{[2
,3
]}

Koh, D. Y. ^{[4
]}

Seong, K. C. ^{[5
]}

Chang, H. M. ^{[6
]}

Lee, H. G. ^{[1
]}

机构：

[1] Korea Univ, Div Mat Sci & Engn, Seoul, South Korea

[2] Gyeongsang Natl Univ, Dept Elect Engn, Jinju, South Korea

[3] ERI, Jinju, South Korea

[4] Korea Inst Machinery & Mat, Taejon, South Korea

[5] Korea Electrotechnol Res Inst, Chang Won, South Korea

[6] Hongik Univ, Dept Mech & Syst Design Engn, Seoul, South Korea

来源：

SUPERCONDUCTOR SCIENCE & TECHNOLOGY | 2010年 / 23卷 / 12期

关键词：

MGB2 DEMONSTRATION COIL; HTS-SMES SYSTEM; NITROGEN; MRI;

D O I：

10.1088/0953-2048/23/12/125006

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A cooling system that uses solid nitrogen (SN2) as an effective heat capacity enhancer was recently introduced to enhance the thermal stability of the HTS SMES. Since SN2 has a large enthalpy with minimal weight, it enables a portable system by increasing the recooling to recooling time period (RRTP). However, contact between the SN2 and HTS SMES magnet can be broken by repeated thermal disturbances (thermal 'dry-out' phenomena). Therefore, it is essential to improve thermal contact to allow full use of the heat capacity of SN2. This study evaluated the effect of using a mixture containing SN2 and a small amount of a liquid cryogen as a cooling system in the HTS SMES system. The performance of the cooling system was evaluated using the mixed cryogen and compared with that of SN2 alone. In addition, the role of liquid neon (Ne) as a heat exchanger between SN2 and the HTS SMES magnet is discussed.

引用

页数：7

共 18 条

[1] A 0.6 T/650 mm RT bore solid nitrogen cooled MgB2 demonstration coil for MRI -: A status report [J].