Effect of ITER CS and PF magnets on EM loads outside vacuum vessel at plasma disruption events

2021 ◽  
Vol 163 ◽  
pp. 112133
Author(s):  
D.N. Arslanova ◽  
A.V. Belov ◽  
E.I. Gapionok ◽  
V.P. Kukhtin ◽  
E.A. Lamzin ◽  
...  
Keyword(s):  
Vacuum Vessel ◽  
Plasma Disruption

Mechanical forces simulation and stress analysis of the TEXTOR vacuum vessel during plasma disruption under 3d eddy currents load

1996 ◽  
Vol 32 (4) ◽  
pp. 3004-3007 ◽  
Author(s):  
H. Bohn ◽  
B. Giesen ◽  
A. Belov ◽  
N. Berkhov ◽  
E. Bondarchuk ◽  
...  
Keyword(s):  
Stress Analysis ◽  
Eddy Currents ◽  
Mechanical Forces ◽  
Vacuum Vessel ◽  
Plasma Disruption

scholarly journals Electromagnetic dynamic response of HL-2M vacuum vessel under plasma disruption considering the electromagneto-mechanical coupling effect

2016 ◽  
Vol 109-111 ◽  
pp. 496-502 ◽  
Author(s):  
Hongwei Yuan ◽  
Zhensheng Yuan ◽  
Weixin Li ◽  
Cuixiang Pei ◽  
Shejuan Xie ◽  
...  
Keyword(s):  
Dynamic Response ◽  
Coupling Effect ◽  
Vacuum Vessel ◽  
Plasma Disruption ◽  
Mechanical Coupling

Influence of shielding plates on dynamical response of HL-2M vacuum vessel due to electromagnetic force during a plasma disruption

2017 ◽  
Vol 36 (6) ◽  
pp. 1759-1773
Author(s):  
Kaiqiang Wang ◽  
Shejuan Xie ◽  
Hongwei Yuan ◽  
Cuixiang Pei ◽  
Zhenmao Chen ◽  
...  
Keyword(s):  
Dynamic Response ◽  
Lagrangian Approach ◽  
Side Length ◽  
Response Analysis ◽  
Dynamical Response ◽  
Vacuum Vessel ◽  
Content Type ◽  
Plasma Disruption ◽  
Mechanical Coupling ◽  
Transient Electromagnetic

Purpose In this paper, numerical modelling and dynamical response analysis were performed for the HL-2M vacuum vessel (VV) and shielding plates (SPs) during a plasma disruption by using an updated ANSYS parametric design language (APDL) code developed by the authors. The purpose of this paper is to investigate the influence of the SPs on the dynamical response of VV owing to a transient electromagnetic (EM) force and to optimize the design of SPs in view of the minimization of the structural dynamic response. Design/methodology/approach The Lagrangian approach, i.e. the moving coordinate scheme developed by the authors, was updated to tackle the EM-mechanical coupling effect in the dynamic response analysis of the VV-SPs system due to the transient EM force during plasma disruptions. To optimize the structural design of HL-2M SPs, the influence of the key parameters of SPs, i.e., the side length, thickness and material properties, was clarified on the basis of the numerical results and an optimized design of SPs was obtained. Findings The updated APDL code of the Lagrangian approach is efficient for the transient dynamical response analysis of the VV-SPs system owing to the EM force. The SP of a smaller side length, larger thickness tungsten material better mitigates the dynamical response of the VV-SPs system. Originality/value The Lagrangian approach was updated for the EM–mechanical coupling dynamical response analysis of the VV-SPs system, and the influence of the SP parameters on the dynamical response of the VV-SPs system of HL-2M Tokamak was clarified.

Eddy currents calculation in the TEXTOR 94 modified liner/vacuum vessel system during plasma disruption

2001 ◽  
Vol 58-59 ◽  
pp. 845-849 ◽  
Author(s):  
F.H. Bohn ◽  
G. Czymek ◽  
B. Giesen ◽  
E. Bondarchuk ◽  
N. Doinikov ◽  
...  
Keyword(s):  
Eddy Currents ◽  
Vacuum Vessel ◽  
Plasma Disruption

scholarly journals Physics basis for the ICRF system of the SPARC tokamak

2020 ◽  
Vol 86 (5) ◽  
Author(s):  
Y. Lin ◽  
J. C. Wright ◽  
S. J. Wukitch
Keyword(s):  
Alpha Particles ◽  
Fast Wave ◽  
Vacuum Vessel ◽  
Auxiliary Heating ◽  
Heating Method ◽  
Full Field ◽  
Single Pass ◽  
Wave Absorption ◽  
Port Design ◽  
Icrf Heating

Ion cyclotron range of frequencies (ICRF) heating will be the sole auxiliary heating method on SPARC for both full-field (Bt0 ~ 12 T) D–T operation and reduced field (Bt0 ~ 8 T) D–D operation. Using the fast wave at ~120 MHz, good wave penetration and strong single-pass absorption is expected for D–T(3He), D(3He), D(H) and 4He(H) heating scenarios. The dependences of wave absorption on ${k_\parallel }$ , 3He concentration, resonance location, antenna poloidal location and losses on alpha particles and ash have been studied. The antenna loading has been assessed by comparison with the Alcator C-Mod antennae. An antenna spectrum of ${k_\parallel }\sim 15\text{--}18\,{\textrm{m}^{ - 1}}$ is shown to be good for both core absorption and edge coupling. For the control of impurity sources, the antenna straps are rotated ~10° to be perpendicular to the B field and the straps can run with different power levels in order to optimize the antenna spectrum and to minimize the image current on the antenna frame. Combining the physics constraints with the SPARC port design, maintenance requirement and contingency against antenna failure during D–T operation, we plan to mount on the inner wall of the vacuum vessel a total of 12 4-strap antennae in 6 ports while keeping 3-strap antennae that are insertable and removable on port plugs as the backup option.

Design and verification status of COMPASS-U vacuum vessel and stabilization loop

2021 ◽  
Vol 171 ◽  
pp. 112568
Author(s):  
Nisarg Patel ◽  
Jakub Hromadka ◽  
Josef Havlicek ◽  
Vojtech Balner ◽  
David Sestak ◽  
...  
Keyword(s):  
Vacuum Vessel
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