Superconducting Feeder System for ITER Central Solenoid Module Final Test Facility
| Autor: | A.R. Langhorn, J.P. Smith, Tingzhi Zhou, Lu Kun, Kaizhong Ding, Erica Salazar, Zbigniew S. Piec, S. Lloyd, K.M. Schaubel |
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| Rok vydání: | 2018 |
| Předmět: |
Superconductivity
Materials science Nuclear engineering chemistry.chemical_element Cryogenics Condensed Matter Physics 01 natural sciences Electronic Optical and Magnetic Materials chemistry Electromagnetic coil 0103 physical sciences Duct (flow) Electronics Electrical and Electronic Engineering 010306 general physics Voltage drop Helium Voltage |
| Zdroj: | IEEE Transactions on Applied Superconductivity. 28:1-4 |
| ISSN: | 1558-2515 1051-8223 |
| DOI: | 10.1109/tasc.2017.2783338 |
| Popis: | General Atomics has commissioned the final test facility at the central solenoid module (CSM) manufacturing site in Poway, CA, USA. The facility includes a number of critical subsystems including the feeder system (FS), supplied by the Institute of Plasma Physics Chinese Academy of Science (ASIPP), that connects the test chamber to the cryogenic and electrical systems. It includes a coil termination box, high-temperature superconducting current leads, and a feeder duct. The FS carries the current (50 kA) and supercritical helium (4.5 K, 5.5 bara) to the CSM and its supporting structure, while monitoring and controlling the temperature, pressure, flow, and voltage drop through all elements of the superconducting components. It functions as an integral part of the system to rapidly (6-s decay time) dissipates 1-GJ energy stored in the coils, and to protect the cryogenic system. The system is complex, requiring multidisciplinary engineering including: high-temperature superconductivity, cryogenic-temperatures (77, 50, and 4.5 K), high vacuum (1.0 × 10−5 Pa), redundant quench detection (voltage, temperature), high-voltage insulation (15 kV), low thermal loads (70 W), low electrical joint resistance (2 nΩ), Paschen testing, high-voltage signal measurements, and high-current electronics. The system presented significant challenges for design and analysis, complex manufacturing assembly processes, measurement and control, and stringent quality and safety requirements. |
| Databáze: | OpenAIRE |
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