TY - JOUR
T1 - Mixed cryogen cooling systems for HTS power applications
T2 - A status report of progress in Korea University
AU - Song, Jung Bin
AU - Lee, Haigun
N1 - Funding Information:
This study was supported by the Mid-Career Researcher Program through an NRF grant funded by the MEST (2009-0085369). This study was also supported by the Ministry of Knowledge Economy (MKE), Korea, under the IT R&D Infrastructure Program supervised by the National IT Industry Promotion Agency (NIPA) (NIPA-2011-(B1110-1101-0002)).
PY - 2012/12
Y1 - 2012/12
N2 - A cooling system employing a solid cryogen (SC), such as solid nitrogen (SN2), was recently reported for high-temperature superconducting (HTS) applications. However, thermal contact between the SC and the HTS can be degraded by repeated overcurrent runs, resulting in 'thermal dry-out'. Novel cryogens, SC with small amounts of liquid cryogen, have been suggested to overcome this problem. Such cooling systems rely on the small amount of liquid cryogen to facilitate heat exchange so as to fully exploit the heat capacity of the solid cryogen. This paper presents a description and summary of recent activities at Korea University related to cooling systems employing mixed cryogens of solid-liquid nitrogen, solid argon-liquid nitrogen, and solid nitrogen-liquid neon.
AB - A cooling system employing a solid cryogen (SC), such as solid nitrogen (SN2), was recently reported for high-temperature superconducting (HTS) applications. However, thermal contact between the SC and the HTS can be degraded by repeated overcurrent runs, resulting in 'thermal dry-out'. Novel cryogens, SC with small amounts of liquid cryogen, have been suggested to overcome this problem. Such cooling systems rely on the small amount of liquid cryogen to facilitate heat exchange so as to fully exploit the heat capacity of the solid cryogen. This paper presents a description and summary of recent activities at Korea University related to cooling systems employing mixed cryogens of solid-liquid nitrogen, solid argon-liquid nitrogen, and solid nitrogen-liquid neon.
KW - Cooling system
KW - High temperature superconducting
KW - Mixed cryogen
KW - Solid cryogen
KW - Thermal dry-out
KW - YBCO coated conductor
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U2 - 10.1016/j.cryogenics.2012.06.013
DO - 10.1016/j.cryogenics.2012.06.013
M3 - Article
AN - SCOPUS:84870446745
VL - 52
SP - 648
EP - 655
JO - Cryogenics
JF - Cryogenics
SN - 0011-2275
IS - 12
ER -