Prospects of High Temperature Superconductors for fusion magnets and power applications
| Autor: | Christian Barth, Reinhard Heller, Sandra Drotziger, Wilfried Goldacker, Walter H. Fietz, Sonja I. Schlachter, Klaus-Peter Weiss |
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| Rok vydání: | 2013 |
| Předmět: |
Fusion
Materials science High-temperature superconductivity Mechanical Engineering Engineering physics Power (physics) law.invention Magnetic field Nuclear magnetic resonance Nuclear Energy and Engineering law Magnet Limit (music) General Materials Science Electrical conductor Civil and Structural Engineering Voltage |
| Zdroj: | Fusion Engineering and Design. 88:440-445 |
| ISSN: | 0920-3796 |
| DOI: | 10.1016/j.fusengdes.2013.03.059 |
| Popis: | During the last few years, progress in the field of second-generation High Temperature Superconductors (HTS) was breathtaking. Industry has taken up production of long length coated RE BCO conductors with reduced angular dependency on external magnetic field and excellent critical current density jc. Consequently these RE BCO tapes are used more and more in power application. For fusion magnets, high current conductors in the kA range are needed to limit the voltage during fast discharge. Several designs for high current cables using High Temperature Superconductors have been proposed. With the RE BCO tape performance at hand, the prospects of fusion magnets based on such high current cables are promising. An operation at 4.5 K offers a comfortable temperature margin, more mechanical stability and the possibility to reach even higher fields compared to existing solutions with Nb 3 Sn which could be interesting with respect to DEMO. After a brief overview of HTS use in power application the paper will give an overview of possible use of HTS material for fusion application. Present high current HTS cable designs are reviewed and the potential using such concepts for future fusion magnets is discussed. |
| Databáze: | OpenAIRE |
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