Speaker
Description
Princeton Plasma Physics Laboratory (PPPL) is a DOE national laboratory focused on plasma physics and nuclear fusion science. Our primary mission is research into and development of fusion as an energy source. PPPL recently developed a REBCO coated conductor continuous in-field characterization system and tested a large warm bore conduction cooled Nb3Sn model coil capable of generating 6 T in a liquid cryogen free modular testbed. PPPL is also building a 900 mm warm bore conduction-cooled superconducting magnet to support a new laboratory search for dark matter with a small scale experiment - Princeton Axion Search (PXS). Fundamental understanding of electro-thermal-mechanical properties of coated conductor, and its deployment in high current HTS cable and coil assembly for high field HTS magnets is critical for thermal and mechanical management to avoid quench damage and screening current induced stress failure. The design and fabrication for a cryocooler-based modular testbed will be presented and the design is anticipated to achieve first and second stage temperatures of 44 K and 4.5 K respectively. The conduction cooled modular testbed is being commissioned to validate coil test capabilities and thermal links. Modeling results of HTS insert coil cooling scenarios in the conduction cooling system including cooldown, current ramp and quenching will be discussed.
| Submitters Country | USA |
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| Are you a student? | No |
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