Conveners
FRI-OR6-701 Design and Analysis
- So Noguchi (Hokkaido University)
- Honghai Song (Stony Brook University)
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Ms Laura D'Angelo (TU Darmstadt)19/11/2021, 07:30Oral
Superconducting magnets are employed in accelerators to achieve higher magnetic fields to attain a higher particle-beam deflection. However, superconductivity, i.e. the complete absence of electrical resistivity, is lost upon exceeding a critical temperature leading to the quench phenomenon. Then, the affected magnet regions shift to normal-conducting state and begin to heat up. In the worst...
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So Noguchi (Hokkaido University)19/11/2021, 07:45Oral
The R&D project of compact high-temperature superconducting (HTS) cyclotron system for radioisotope production is ongoing, supported by Japan Science and Technology Agency (JST) and Japan Society of the Promotion of Science (JSPS). This HTS cyclotron has two major features: (1) the magnet has no iron core (air-core), and (2) the output energy is variable. The developing HTS cyclotron system is...
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Mr Anang Dadhich (Institute of Electrical Engineering, Slovak Academy of Sciences)19/11/2021, 08:00Oral
High-field REBCO magnets contain several pancake coils with many turns, which are vulnerable to high stress and strain due to the large background magnetic fields. In addition, screening currents substantially increase the stress. Electro-thermal quench is another issue which is required to be taken into account while designing a high field magnet. Thus, there is a need for fast and accurate...
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QING SHAO19/11/2021, 08:15Oral
A high-temperature superconducting magnet is one of the core technologies of a superconducting maglev train. The multiphysics fields including electromagnetic, mechanical, and thermal effects should be taken into consideration in design. Traditional design methods rely on the initial configuration and the engineer's experience, and only consider the optimization design for the heat conduction...
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Dr XiaoGang Liu (Institute of Plasma Physics)19/11/2021, 08:30Oral
A 46 T all-superconducting magnet is being designed at the Institute of Plasma Physics Chinese Academy of Sciences. This magnet consists of, from the outside to the inside, the CFETR CS model coil capable of producing a 10 T central field, a REBCO-CORC insert coil providing an additional 10 T central field, and three REBCO insert coils which are dry wound with 4 mm wide REBa2Cu3O7-x tape...
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Dr Emmanuele Ravaioli (CERN)19/11/2021, 08:45Oral
The quench process in a superconducting magnet is inherently transient and three-dimensional (3D). In many cases, such as magnets protected by active protection systems, it is possible to accurately simulate this transient with a two-dimensional model. However, a more complex 3D model is required in case of a self-protecting magnet. Simulations are particularly challenging due to physical and...
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Nicolo' Riva (EPFL - EPF Lausanne)19/11/2021, 09:00Oral
Commercial REBCO tapes are a promising technology for power and magnet engineering. Due to their complex manufacturing, they present inhomogeneities of the critical current distribution and silver stabilizer thickness along their length. It is therefore paramount to investigate the impact of inhomogeneities when designing superconducting devices based on such tapes.
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This kind of study... -
Dr Sriharsha Venuturumilli (Robinson Research Institute, Victoria University of Wellington)19/11/2021, 09:15Oral
With only 1 µm thickness of high temperature superconducting (HTS) material, HTS tapes are very fragile and can easily undergo an irreversible damage when operated near to its rated values. When wound into coils, this phenomena intensifies, limiting the operating values to only 50-80 % of its rated values. This is mainly due to the restricted HTS current path and poor thermal conduction...
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