Numerical Studies on the Influence of Cavity Thermal Expansion on the Performance of a High-Power Gyrotron

被引：15

作者：

Avramidis, Konstantinos A. ^{[1
]}

Bertinetti, Andrea ^{[2
]}

Albajar, Ferran ^{[3
]}

Cau, Francesca ^{[3
]}

Cismondi, Fabio ^{[3
,4
]}

Gantenbein, Gerd ^{[1
]}

Illy, Stefan ^{[1
]}

Ioannidis, Zisis C. ^{[1
]}

Jelonnek, John ^{[1
]}

Legrand, Francois ^{[5
]}

Pagonakis, Ioannis Gr. ^{[1
]}

Rozier, Yoann ^{[5
]}

Rzesnicki, Tomasz ^{[1
]}

Savoldi, Laura ^{[2
]}

Thumm, Manfred ^{[1
]}

Zanino, Roberto ^{[2
]}

机构：

[1] Karlsruhe Inst Technol, Inst Pulsed Power & Microwave Technol, D-76131 Karlsruhe, Germany

[2] Politecn Torino, Dipartimento Energia, NEMO Grp, I-10129 Turin, Italy

[3] Fus Energy, Barcelona 08019, Spain

[4] EURO Fus Consortium, D-85748 Garching, Germany

[5] Thales Electron Devices, F-78140 Velizy Villacoublay, France

来源：

IEEE TRANSACTIONS ON ELECTRON DEVICES | 2018年 / 65卷 / 06期

关键词：

ECRH; gyrotron; ITER; multiphysics simulation; thermal expansion; PROTOTYPE GYROTRON; 1; MW; ITER;

D O I：

10.1109/TED.2017.2782365

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

An iterative procedure is described, which models the influence of the thermal expansion of the gyrotron cavity on the expected gyrotron performance. It is a multiphysics simulation method, which involves electrodynamic, thermal-hydraulic, and thermo-mechanical simulations. The method is applied to the first European 170-GHz, 1-MW continuous wave prototype gyrotron for the ITER. According to the simulations, a performance reduction of similar to 15% is expected at nominal operating parameters, because of the thermal expansion of the cavity. Alternative operating points to mitigate this effect are proposed and numerically validated. The numerical results are discussed in light of experimental findings.

引用

页码：2308 / 2315

页数：8

共 23 条

[1] Alberti S., P 2016 41 INT C INFR, DOI [10.1109/IRMMW-THZ.2016.7758479, DOI 10.1109/IRMMW-THZ.2016.7758479]
[2] [Anonymous], 2015, US GUID STAR CCM 10
[3] EURIDICE: A code-package for gyrotron interaction simulations and cavity design
Avramides, K. A.
Pagonakis, I. Gr
Iatrou, C. T.
Vomvoridis, J. L.
[J]. EC-17 - 17TH JOINT WORKSHOP ON ELECTRON CYCLOTRON EMISSION AND ELECTRON CYCLOTRON RESONANCE HEATING, 2012, 32
[4] Avramidis K. A., 2017, 18 INT VAC EL C IVEC
[5] Mode Selection and Coaxial Cavity Design for a 4-MW 170-GHz Gyrotron, Including Thermal Aspects
Beringer, Matthias Hermann
Kern, Stefan
Thumm, Manfred
[J]. IEEE TRANSACTIONS ON PLASMA SCIENCE, 2013, 41 (04) : 853 - 861
[6] Multi-physics analysis of a 1 MW gyrotron cavity cooled by mini-channels
Bertinetti, A.
Avramidis, K. A.
Albajar, F.
Cau, F.
Cismondi, F.
Rozier, Y.
Savoldi, L.
Zanino, R.
[J]. FUSION ENGINEERING AND DESIGN, 2017, 123 : 313 - 316
[7] Cordova M., 2013, THESIS
[8] Cordova M., 2013, WORKSH RF HEAT TECHN
[9] Hammerstad E.O., 1975, Microstrip Handbook, P4
[10] Ioannidis Z. C., 2017, 18 INT VAC EL C IVEC

← 1 2 3 →