Design of Vertical Stabilizing Shells and Tutorial on EM Pumps [ARIES Review Meeting, June 19-21, 2000,

University ofDesign of Vertical Stabilizing Shells and TutorialWisconsinon Electromagnetic PumpsI. N. Sviatoslavsky and E. A. MogahedFusion Technology Institute, UW-Madison, WisconsinARIES Project MeetingUniversity of Wisconsin, Madison, WIJune 19-21, 2000Description of Vertical Plasma Stabilizing ShellsUniversity ofWisconsin• There are conducting shells located on the inboard and outboard side of the plasmachamber that stabilize the vertical location of the plasma.• These shells must be electrically conducting in the toroidal direction, but since theyare imbedded in the removable segments, they have to make good electrical contactbetween them. Parameters of the shells are given below:Inboard OutboardMaterial WRe WReThickness (cm) 4.0 4.0Radial location (cm) 3.45 5.0 - 6.0Vertical location (+ m) 1.8 - 2.9 1.8 - 2.9Cooling Radiative RadiativeEstimated temp. (C) 1260 1260Number of shells 32 326 6Mass of each shell (kg) 0.58 x 10 1.32 x 10Support of the Shells on the SegmentsUniversity ofWisconsinEach segment of the chamber will have an inboard and anoutboard shell supported on it. Further, there are upper andlower shells.Inboard Shells: There are indentations in the inboard high-temperature (HT) shield and the individual shells are imbeddedin it at the interface between the inboard FW/blanket and theinboard HT shield. SiC studs built into the junctions betweenmodules fit into slots in the shells to support them.Outboard Shells: In ...