Abstract
A design study of the TF coil for the fusion DEMO plant at JAERI is in progress. A major issue is to estimate the maximum fields generated by the TF coils for three tokamak options and two conductor options. Three tokamak options are proposed varying the aspect ratio and the role of the CS coil. Two kinds of conductors using advanced superconducting materials are candidates for the TF coils: Nb3Al and high temperature superconductor (HTS). In order to evaluate achievable magnetic fields, a simple method was adopted to calculate mechanical properties. The estimated maximum fields are 17-20 T by the HTS conductor and 16-17 T by the Nb3Al conductor. There is a possibility of a 0.7 T enhancement using grading of Nb3Al winding.
Original language | English |
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Pages (from-to) | 1257-1261 |
Number of pages | 5 |
Journal | Fusion Engineering and Design |
Volume | 81 |
Issue number | 8-14 PART B |
DOIs | |
Publication status | Published - 2006 Feb |
Externally published | Yes |
Event | Proceedings of the Seventh International Symposium on Fusion Nuclear Technology ISFNT-7 Part B - Duration: 2005 May 22 → 2005 May 27 |
Keywords
- Fusion DEMO plant
- HTS
- NbAl
- Superconducting coil
ASJC Scopus subject areas
- Civil and Structural Engineering
- Nuclear Energy and Engineering
- Materials Science(all)
- Mechanical Engineering