Abstract
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.
| Original language | English |
|---|---|
| Pages (from-to) | 648-655 |
| Number of pages | 8 |
| Journal | Cryogenics |
| Volume | 52 |
| Issue number | 12 |
| DOIs | |
| Publication status | Published - 2012 Dec |
Bibliographical note
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)).
Keywords
- Cooling system
- High temperature superconducting
- Mixed cryogen
- Solid cryogen
- Thermal dry-out
- YBCO coated conductor
ASJC Scopus subject areas
- General Materials Science
- General Physics and Astronomy