Technology development and mass production of Nb<sub>3</sub>Sn conductors for ITER toroidal field coils in Japan

Takahashi, Yoshikazu; Isono, T.; Hamada, K.; Nunoya, Y.; Nabara, Y.; Matsui, K.; Hemmi, T.; Kawano, Keiichi; Koizumi, N.; Oshikiri, M.; Uno, Y.; Tsutsumi, F.; Yoshikawa, M.; Nakajima, Hideo; Okuno, K.; Devred, A.; Mitchell, N.

doi:10.1088/0029-5515/51/11/113015

Cited by 19 publications

(9 citation statements)

References 35 publications

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“…Figure 3 shows the cross-section of the inboard and outboard of the CFETR TF 3. Similar to the ITER TF coils, the CFETR TF conductor performance qualification tests are also required [21,22].…”

Section: Cfetr Coils Magnet Systemmentioning

confidence: 99%

Electromagnetic, mechanical and thermal performance analysis of the CFETR magnet system

et al. 2015

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The Chinese Fusion Engineering Test Reactor (CFETR) superconducting magnet system was designed by the National Integration Design Group for Magnetic Confinement Fusion Reactor. The CFETR magnet system consists mainly of a central solenoid (CS) coil with six modules, 16 toroidal field (TF) coils, 8 poloidal field (PF) coils, and a set of correction coils (CC). The electromagnetic stresses and stored magnetic energy are huge on the CFETR magnets since they experience both large current densities and high magnetic field. The electromagnetic, structural and thermal performance needs to be evaluated to ensure that the magnetic field, stress, and hot spot temperature of the magnet system are within the allowed criteria.The evaluation of the electromagnetic performance of the CFETR superconducting magnet system under normal operation and fault conditions was performed. The two-dimensional finite element method was adopted to analyse the stress/strain behaviour of the CFETR CS coils. In addition, the thermal-hydraulic behaviour on quench propagation performance of the CFETR CS and TF coils was analysed to evaluate the hot spot temperature of the cable and the helium pressure inside a jacket during a quench.

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Section: Cfetr Coils Magnet Systemmentioning

confidence: 99%

Electromagnetic, mechanical and thermal performance analysis of the CFETR magnet system

et al. 2015

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“…In addition, JAEA has started to fabricate the CS conductors. The details of these conductors are presented in [3][4][5].…”

Section: Development Of Iter Conductors In Japanmentioning

confidence: 99%

Progress of ITER and JT-60SA Magnet Development in Japan

Koizumi¹,

Yoshihiko²,

Yoshida³

et al. 2014

Physics Procedia

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Japan Atomic Energy Agency (JAEA), as the Japan Domestic Agency (JADA), has the responsibility to procure 9 ITER toroidal field (TF) coils, 19 TF coil (TFC) structures, 25% of the TF conductors and 100% of the central solenoid (CS) conductors in ITER and, in addition, CS and equilibrium field (EF) coils including their conductors in JT-60SA, which is being developed as a satellite facility for ITER. In ITER, more than 90% of TF conductor fabrication was completed and finalization of the manufacturing procedure of TF coils is in progress through full-scale trials, such as trial fabrication of dummy double pancakes (DPs). In JT-60SA, fabrication of the EF4 coil was completed and the EF5 and EF6 coils are being assembled.

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“…The current distribution of the production of the Nb 3 Sn strand between the DAs is illustrated in figure 4. About 90 tons have already been produced, ∼60% of which by two JA companies, Hitachi and JASTEC, which have been in production since 2008 [7]. Mass production has also started at other DAs, like KO (Kiswire Advanced Technologies) or RF (Chepetsk Mechanical Plant).…”

Section: Superconductorsmentioning

confidence: 99%

The ITER magnet systems: progress on construction

et al. 2013

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Construction of the ITER magnet systems has been started at the end of 2007 following the signature of the first procurement arrangements (PA) for the toroidal field (TF) conductors. Six ITER members are involved in the share of the ITER magnet components and, to date, eighteen PA between the ITER Organization and six domestic agencies have been signed. Substantial progress towards full-scale construction has been achieved with the placement of the first large manufacturing contracts, the production of several tens of tons of advanced Nb 3 Sn and NbTi strand, and the setup of large cabling and jacketing facilities. The detailed design of the coils and support structures has also been finalized. The qualification of the fabrication processes for the TF coils and poloidal field (PF) coils has been initiated. The detailed design of the central solenoid (CS) coils is being developed. The design of the correction coils (CCs) with their support structures has been finalized, as well as for the TF gravity supports and clamps of the PF coils. The manufacture of prototypes of the feeder lines and current leads has been started, while ITER is in charge of the procurement of the required magnet instrumentation. This paper provides a progress report on the ITER magnet construction as per December 2010.

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Technology development and mass production of Nb₃Sn conductors for ITER toroidal field coils in Japan

Cited by 19 publications

References 35 publications

Electromagnetic, mechanical and thermal performance analysis of the CFETR magnet system

Electromagnetic, mechanical and thermal performance analysis of the CFETR magnet system

Progress of ITER and JT-60SA Magnet Development in Japan

The ITER magnet systems: progress on construction

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Technology development and mass production of Nb3Sn conductors for ITER toroidal field coils in Japan

Cited by 19 publications

References 35 publications

Electromagnetic, mechanical and thermal performance analysis of the CFETR magnet system

Electromagnetic, mechanical and thermal performance analysis of the CFETR magnet system

Progress of ITER and JT-60SA Magnet Development in Japan

The ITER magnet systems: progress on construction

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Product

Resources

About

Technology development and mass production of Nb₃Sn conductors for ITER toroidal field coils in Japan