Thermodynamic optimization of 10–30 kA gas-cooled current leads with REBCO tapes for superconducting magnets at 20 K
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Chang, H.-M. | - |
dc.contributor.author | Kim, N.H. | - |
dc.contributor.author | Oh, S. | - |
dc.date.accessioned | 2023-04-14T08:41:10Z | - |
dc.date.available | 2023-04-14T08:41:10Z | - |
dc.date.created | 2023-04-14 | - |
dc.date.issued | 2023-04-01 | - |
dc.identifier.issn | 0011-2275 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/hongik/handle/2020.sw.hongik/31085 | - |
dc.description.abstract | Thermodynamic optimization is carried out to minimize the refrigeration work of gas-cooled current leads at a current level of 10–30 kA for superconducting magnets at 20 K. The binary HTS lead is a serial combination of REBCO (rare-earth barium copper oxide) tapes as cold part and copper conductor as warm part. In gas-cooled leads, liquid nitrogen is not used, but cold helium gas is supplied for forced-flow cooling through the channel between spiral fins of copper conductor. A special attention is paid to the conditions of gas-cooling, which can be integrated with a closed refrigeration cycle without any heat intercept or boil-off loss of liquid. The input power for refrigeration is rigorously calculated with the temperature-dependent properties of conductors. When a safety margin is selected on the critical current of REBCO, it is proven that there exists a unique optimum in the cooling-gas temperature and the dimensional size of copper conductor to minimize the required work for refrigeration. The results are compared with the optimized cases of conduction-cooled and vapor-cooled binary leads for 20 K magnets. The details of optimization procedure and design data are presented for practical application. © 2023 Elsevier Ltd | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | Elsevier Ltd | - |
dc.title | Thermodynamic optimization of 10–30 kA gas-cooled current leads with REBCO tapes for superconducting magnets at 20 K | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Chang, H.-M. | - |
dc.identifier.doi | 10.1016/j.cryogenics.2023.103667 | - |
dc.identifier.scopusid | 2-s2.0-85148320324 | - |
dc.identifier.wosid | 000969157800001 | - |
dc.identifier.bibliographicCitation | Cryogenics, v.131 | - |
dc.relation.isPartOf | Cryogenics | - |
dc.citation.title | Cryogenics | - |
dc.citation.volume | 131 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Thermodynamics | - |
dc.relation.journalResearchArea | Physics | - |
dc.relation.journalWebOfScienceCategory | Thermodynamics | - |
dc.relation.journalWebOfScienceCategory | Physics, Applied | - |
dc.subject.keywordPlus | SCALE-UP | - |
dc.subject.keywordPlus | DESIGN | - |
dc.subject.keywordPlus | TEMPERATURE | - |
dc.subject.keywordAuthor | Current leads | - |
dc.subject.keywordAuthor | HTS magnet | - |
dc.subject.keywordAuthor | Optimization | - |
dc.subject.keywordAuthor | REBCO | - |
dc.subject.keywordAuthor | Thermodynamics | - |
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