The DEMO magnet system - Status and future challenges

被引：61

作者：

Corato, V. ^{[1
]}

Vorpahl, C. ^{[2
]}

Sedlak, K. ^{[3
]}

Anvar, V. A. ^{[4
]}

Bennet, J. ^{[5
]}

Biancolini, M. E. ^{[6
]}

Bonne, F. ^{[5
]}

Bonifetto, R. ^{[7
]}

Boso, D. P. ^{[8
]}

Brighenti, A. ^{[7
]}

Bruzzone, P. ^{[3
]}

Celentano, G. ^{[1
]}

Della Corte, A. ^{[1
]}

De Marzi, G. ^{[1
]}

D'Auria, V.

Dematte, F. ^{[3
]}

Dembkowska, A. ^{[9
]}

Dicuonzo, O. ^{[3
]}

Zignani, C. Fiamozzi

Fietz, W. H. ^{[10
]}

Frittitta, C. ^{[3
]}

Giannini, L. ^{[1
]}

Giorgetti, F. ^{[11
]}

Guarino, R. ^{[3
]}

Heller, R. ^{[10
]}

Hoa, C. ^{[5
]}

Huguet, M.

Jiolat, G. ^{[5
]}

Kumar, M. ^{[3
]}

Lacroix, B. ^{[5
]}

Lewandowska, M. ^{[9
]}

Misiara, N. ^{[5
]}

Morici, L. ^{[1
]}

Muzzi, L. ^{[1
]}

Nickel, D. S. ^{[10
]}

Nicollet, S. ^{[5
]}

Nijhuis, A. ^{[4
,5
]}

Nunio, F. ^{[5
]}

Portafaix, C. ^{[5
]}

Sarasola, X. ^{[3
]}

Savoldi, L. ^{[7
]}

Tiseanu, I. ^{[12
]}

Tomassetti, G. ^{[1
]}

Torre, A. ^{[5
]}

Turtu, S. ^{[1
]}

Uglietti, D. ^{[3
]}

Vallcorba, R. ^{[5
]}

Weiss, K. -p. ^{[10
]}

Wesche, R. ^{[3
]}

Wolf, M. J. ^{[10
]}

机构：

[1] ENEA, I-00044 Frascati, Italy

[2] EUROfusion, D-85748 Garching, Germany

[3] Ecole Polytech Fed Lausanne EPFL, Swiss Plasma Ctr SPC, CH-5232 Villigen, Switzerland

[4] Univ Twente, NL-7522 Enschede, Netherlands

[5] Commissariat IEnergie Atom & Energies Alternat, Paris, France

[6] Univ Roma Tor Vergata, I-00133 Rome, Italy

[7] Dipartimento Energia Galileo Ferraris, Politecn Torino, I-10129 Turin, Italy

[8] Univ Padua, Dept Civil, Environm & Architectural Engn, I-35131 Padua, Italy

[9] West Pomeranian Univ Technol, PL-70310 Szczecin, Poland

[10] Karlsruhe Inst Technol, POB 3640, D-76021 Karlsruhe, Germany

[11] Univ Tuscia, DEIM, I-01100 Viterbo, Italy

[12] EURATOM MEdC Assoc, NILPRP, Bucharest 077125, Romania

来源：

FUSION ENGINEERING AND DESIGN | 2022年 / 174卷

关键词：

EU-DEMO superconducting magnets; React-and-Wind conductors; HTS hybrid Central Solenoid; magnet insulation; CABLE; CONDUCTOR; SIZE;

D O I：

10.1016/j.fusengdes.2021.112971

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

We present the pre-concept design of the European DEMO Magnet System, which has successfully passed the DEMO plant-level gate review in 2020. The main design input parameters originate from the so-called DEMO 2018 baseline, which was produced using the PROCESS systems code. It defines a major and minor radius of 9.1 m and 2.9 m, respectively, an on-axis magnetic field of 5.3 T resulting in a peak field on the toroidal field (TF) conductor of 12.0 T. Four variants, all based on low-temperature superconductors (LTS), have been designed for the 16 TF coils. Two of these concepts were selected to be further pursued during the Concept Design Phase (CDP): the first having many similarities to the ITER TF coil concept and the second being the most innovative one, based on react-and-wind (RW) Nb3Sn technology and winding the coils in layers. Two variants for the five Central Solenoid (CS) modules have been investigated: an LTS-only concept resembling to the ITER CS and a hybrid configuration, in which the innermost layers are made of high-temperature superconductors (HTS), which allows either to increase the magnetic flux or to reduce the outer radius of the CS coil. Issues related to fatigue lifetime which emerged in mechanical analyses will be addressed further in the CDP. Both variants proposed for the six poloidal field coils present a lower level of risk for future development. All magnet and conductor design studies included thermal-hydraulic and mechanical analyses, and were accompanied by experimental tests on both LTS and HTS prototype samples (i.e. DC and AC measurements, stability tests, quench evolution etc.). In addition, magnet structures and auxiliary systems, e.g. cryogenics and feeders, were designed at pre-concept level. Important lessons learnt during this first phase of the project were fed into the planning of the CDP. Key aspects to be addressed concern the demonstration and validation of critical technologies (e.g. industrial manufacturing of RW Nb3Sn and HTS long conductors, insulation of penetrations and joints), as well as the detailed design of the overall Magnet System and mechanical structures.

引用

页数：19

共 75 条

[1]

Ambrosino R., 2019, REFERENCE EQUILIBRIU

[2] AC loss and contact resistance of different CICC cable patterns: Experiments and numerical modeling [J].

Anvar, V. A. ;

Qin, J. ;

Wu, Y. ;

Bagni, T. ;

Devred, A. ;

Haugan, T. J. ;

Hossain, M. S. A. ;

Zhou, C. ;

Nijhuis, A. .

FUSION ENGINEERING AND DESIGN, 2020, 161

[3]

Bachmann C., 2017, DEMO PLANT LOAD SPEC

[4] Development of HTS Current Leads for the ITER Project [J].

Bauer, P. ;

Ballarino, A. ;

Devred, A. ;

Ding, K. ;

Dong, Y. ;

Niu, E. ;

Du, Q. ;

Gung, C. Y. ;

Han, Q. ;

Heller, R. ;

Huang, X. ;

Ichihara, T. ;

Lee, S. ;

Li, J. ;

Liu, C. ;

Liu, Cl ;

Lu, K. ;

Mitchell, N. ;

Song, Y. ;

Spina, T. ;

Ran, Q. ;

Taylor, T. ;

Yamada, S. ;

Yang, Y. ;

Zhou, T. .

ADVANCES IN CRYOGENIC ENGINEERING - MATERIALS (ICMC 2019), 2020, 756

[5]

Benoit L., THERMOHYDRAULIC VERI

[6] Optimization of the cooling capacity of the cryo-magnetic system for EU DEMO at the pre-conceptual design phase [J].

Bonne, Francois ;

Hoa, Christine ;

Le Coz, Quentin ;

Zani, Louis ;

Lacroix, Benoit ;

Poncet, Jean-Marc .

FUSION ENGINEERING AND DESIGN, 2019, 146 :2504-2508

[7]

Boso D., COORDINATION MECH AN

[8] JC(B, T, ε) Parameterization for the ITER Nb3Sn Production [J].

Bottura, Luca ;

Bordini, Bernardo .

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, 2009, 19 (03) :1521-1524

[9] Performance analysis of the toroidal field ITER production conductors [J].

Breschi, M. ;

Macioce, D. ;

Devred, A. .

SUPERCONDUCTOR SCIENCE & TECHNOLOGY, 2017, 30 (05)

[10] Test results of a large size, forced flow Nb3Sn conductor, based on a design alternative to the cable-in-conduit [J].

Bruzzone, P. ;

Herzog, R. ;

Stepanov, B. ;

Vogel, M. ;

Wesche, R. .

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, 2007, 17 (02) :1473-1476

← 1 2 3 4 5 6 7 8 →