From: Lawrence E. Dudek Sent: Friday, May 06, 2011 10:05 AM To: NSTX Center Stack Upgrade Team Subject: Notes from 5/4/2011 NSTX CSU Meeting Attachments: Calc_Status_050511.xls; ATT2023155.htm Notes from 5/4/2011 Meeting: Review of Calc Spreadsheet Heat Balance Calc is in final review (Brooks incorporating comments) Design Point Spreadsheet needs to be added as a calculation number to the list ACTION: R. Simmons to add to list. Calculation 13-03 DCPS Force Influence Coefficients needs to be updated with the latest numbers from Neumeyer. ACTION: Hatcher to run by 5/6 Update on EVMS Certification Plan and Variance Analysis from March (Khodak) (see VGs) The busbar analysis based on scenario 72 was presented. High stresses are indicated near the bases of the PF1 coil flags. Busbar temperatures in some localized uncooled sections are showing temps over 200C. The fix will be to extend the cooling to the hot sections to bring peak temps within limits. Pedestal Analysis Update (Titus) (see VGs) The stresses in the tubular center stack pedestal look acceptable even at maximum power supply limits. May need to adjust the bolt circles between the upper and lower pedestal sections some to reduce fasteners loads. http://nstx-upgrade.pppl.gov/Project_Meetings/CenterStackUpgrade/index_Meetings.htm