DocumentCode
1136841
Title
Performance Tests of the Subcooling System for the LHD Helical Coils
Author
Obana, T. ; Imagawa, S. ; Hamaguchi, S. ; Yanagi, N. ; Moriuchi, S. ; Sekiguchi, H. ; Oba, K. ; Mito, T.
Author_Institution
Nat. Inst. for Fusion Sci., Gifu
Volume
18
Issue
2
fYear
2008
fDate
6/1/2008 12:00:00 AM
Firstpage
1475
Lastpage
1478
Abstract
Performance tests of the subcooling system for the helical coils in the large helical device (LHD) have been performed. For the performance of the system, it is necessary to supply the helical coils with a subcooled helium mass flow of 50 g/s at 3.2 K. From the test results, the performance was able to fulfill the design requirements of the system. Additionally, the coil temperature has been evaluated with the quasi-one dimensional numerical calculation, in which the numerical model simplifying the helical coil configuration is used. The coil temperature would be 3.6 K under a steady heat load of 100 W from outside of the coil case in the system which maintains the above performance, as the result of the calculation.
Keywords
superconducting coils; undercooling; helical coils; large helical device; performance testing; power 100 W; subcooling system; temperature 3.6 K; Helical coil; pool-cooled; subcooled helium;
fLanguage
English
Journal_Title
Applied Superconductivity, IEEE Transactions on
Publisher
ieee
ISSN
1051-8223
Type
jour
DOI
10.1109/TASC.2008.921878
Filename
4493384
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