DocumentCode :
2554402
Title :
Design of the inboard passive stabilizer for TPX
Author :
Hoffmann, E. ; Boonstra, R. ; Baxi, C.B. ; Bialek, Janusz ; Chin, E. ; Drees, L. ; Lee, W. ; Redler, K.L. ; Reis, E.E.
Author_Institution :
Gen. Atomics, San Diego, CA, USA
Volume :
2
fYear :
1995
fDate :
30 Sep-5 Oct 1995
Firstpage :
1295
Abstract :
The inboard passive stabilizer (IPS) is part of the plasma stabilizing system built into the TPX. Its purpose is to provide passive stabilization of the plasma vertical instability on short time scales. With carbon fiber composite (CFC) armor tiles it serves as a startup limiter, protects the vacuum vessel from radiation heat load during steady state operation and also functions as neutral beam armor. The inboard passive stabilizer is a saddle coil, constructed of a ring of copper plates, armored with CFC tiles, that surrounds the inner vacuum vessel at the midplane. The design of the plates, the support structure, cooling lines, CFC tiles and tile attach method is described. Tiles that experience only the normal heat load of 0.4 MW/m2 are attached with mechanical fasteners. Tiles in the neutral beam shine through area are exposed to as much as 1.7 MW/m2 and are brazed to the IPS. Significant forces are generated in the plates by the stabilization currents as well as during the frequent bakeout cycles. These plates are required to be fully remotely handled, including tile replacement, and the influence of this requirement on the design is discussed
Keywords :
carbon fibre reinforced composites; fusion reactor design; fusion reactor limiters; fusion reactor materials; fusion reactor operation; fusion reactors; materials handling; nuclear reactor maintenance; plasma instability; plasma toroidal confinement; C fiber composite; C-C-Cu; TPX; armor tiles; bakeout cycles; cooling lines; fusion reactor materials; inboard passive stabilizer design; mechanical fasteners; neutral beam armor; passive stabilization; plasma stabilizing system; plasma vertical instability; radiation heat load; remote handling; saddle coil; short time scales; startup limiter; steady state operation; support structure; tile attach method; tile replacement; vacuum vessel; Assembly; Coils; Copper; Manufacturing; Plasmas; Protection; Thermal expansion; Thermal force; Tiles; Titanium alloys;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Fusion Engineering, 1995. SOFE '95. Seeking a New Energy Era., 16th IEEE/NPSS Symposium
Conference_Location :
Champaign, IL
Print_ISBN :
0-7803-2969-4
Type :
conf
DOI :
10.1109/FUSION.1995.534464
Filename :
534464
Link To Document :
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