Title :
Assessment on electromagnetic force reduction on modular type blanket structure at plasma disruption for the ITER
Author :
Kitamura, K. ; Miura, H. ; Senda, I. ; Kuroda, T. ; Koizumi, K. ; Takatsu, H. ; Hosokai, I.
Author_Institution :
Heavy Apparatus Eng. Lab., Toshiba Corp., Yokohama, Japan
Abstract :
An electromagnetic (EM) analysis of the ITER blanket system at the plasma disruption has been performed to investigate eddy current and EM force distributions on the blanket modules, especially with the emphasis on the effect of the toroidal slits on the module side surfaces on the EM force reduction at the centered plasma disruption. As the results, the installation of the toroidal slits on the module side surfaces was found to be effective to the EM force reduction on the module, by about 7% for a slit, 16% for 2 slits and 25% for 3 slits, respectively, compared with that on the module structure without the slits. Maximum stress induced at the module attachment edges under the EM forces also decreased by 5% for a slit, 14% for 2 slits and 22% for 3 slits, respectively
Keywords :
eddy currents; fusion reactor blankets; fusion reactor design; fusion reactor safety; plasma instability; plasma toroidal confinement; EM force distributions; ITER; eddy current; electromagnetic force reduction; fusion reactors; maximum stress; modular type blanket structure; module attachment edges; plasma disruption; toroidal slits; Eddy currents; Electromagnetic analysis; Electromagnetic forces; Integrated circuit modeling; Laboratories; Maintenance; Plasma materials processing; Plasma welding; Power engineering and energy; Thermal stresses;
Conference_Titel :
Fusion Engineering, 1997. 17th IEEE/NPSS Symposium
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-4226-7
DOI :
10.1109/FUSION.1997.685671
