Title :
Wendelstein 7-X Trim Coils—Component Safety Aspects and Commissioning Strategy
Author :
Risse, K. ; Füllenbach, Frank ; Rummel, T. ; Mardenfeld, M. ; Xin Zhao
Author_Institution :
Max-Planck-Inst. fur Plasmaphysik, Greifswald, Germany
Abstract :
The stellarator fusion experiment Wendelstein 7-X (W7-X) is currently under construction at the Max-Planck-Institut für Plasmaphysik in Greifswald, Germany. Five normal conducting trim coils have been designed to allow for fine tuning of the main magnetic field during plasma operation. To limit the mechanical stresses in the coil, the proper functioning of the coil cooling system must be carefully monitored. Two independent systems will monitor the coil temperature. In addition, flow monitors in the outlet hydraulic line of each coil will determine if the required cooling water flow is present. The trim coil system will be provided as a part of a collaboration program between the Princeton Plasma Physics Laboratory, Oak Ridge National Laboratory, and the Wendelstein 7-X project, and is funded by the U.S. Department of Energy.
Keywords :
fusion reactor safety; stellarators; Germany; Greifswald; Max-Planck-Institut fur Plasmaphysik; Oak Ridge National Laboratory; Princeton Plasma Physics Laboratory; US Department of Energy; Wendelstein 7-X project; Wendelstein 7-X trim coils; coil cooling system; coil temperature; commissioning strategy; component safety aspects; cooling water flow; main magnetic field; mechanical stresses; normal conducting trim coils; plasma operation; stellarator fusion experiment; trim coil system; Coils; Cooling; Laboratories; Magnetomechanical effects; Monitoring; Temperature measurement; Temperature sensors; Coils; field correction; magnetic field; stellarator;
Journal_Title :
Plasma Science, IEEE Transactions on
DOI :
10.1109/TPS.2013.2294341