ARIES Documents -- Meetings ArchiveARIES Conference Call, 7 December 2010, revised with new paragraph describing Xueren Wang's design discussion
Documented by L. Waganer
Les Waganer mentioned the upcoming January 26-27, 2011 project meeting planned for UCSD, San Diego, CA. Les is preparing the agenda so send him your presentation titles.
Les Waganer mentioned that his availability scaling methodology paper has been published by PPPL and is available at the PPPL web site.
ARIES Technical Efforts
Les Waganer said that he completely updated all the costing algorithms with new inflation data from the Gross Domestic Product Price Level Deflators. He then sent all the revised costing algorithms to Lane Carlson and Laila El-Guebaly.
Laila noted she had five papers presented at TOFE plus one on IFE. Farrokh Najmabadi was the chairman of the meeting. He said that TOFE had 200 participants in the embedded ANS meeting. There will be about 150 papers to be published. The ARIES talks were good and well received.
Said Abdel-Khalik reported that Georgia Tech is continuing with its experiment on modeling the high power divertor designs to establish and validate the thermo-hydraulics data and correlations. The data is not quite completely analyzed and documented.
Lane Carlson continues to work with the systems code, mainly comparing and resolving the output inconsistencies and omissions noted by Laila El-Guebaly. He is also updating the costing algorithms provided by Les Waganer. There were several cost equations that were off by a factor of 16 which were related to the FPC components. Lane and Les resolved those issues. He is also working with Mark Tillack on the model of recovering the pumping power as thermal energy.
Tom Rognlien has been interacting with Mark Tillack even though he does not have funding yet. He is concentrating on the divertor and edge interactions for the high heat flux regime.
Arnie Lumsdaine had been working with Xueren on the specific material of interest in the divertor and first wall systems. Arnie is trying to obtain a specific contact person to serve as the ARIES materials expert. He mentioned Rick Kurtz had an idea for a long-term solution so Arnie will contact him again on this subject.
Mark Tillack affirmed he has been working with Lane Carson on the power flow modeling which had not been correctly modeled in the past. Mark said that the existing algorithm is incorrect, but the value is in the general ballpark. So he will concentrate on items with higher errors. He has now made sure the pumping power recovery is properly modeled. He said the SiC insulating layers do help but they are not optimized yet. Mark is developing equations for the power conversion for the range of temperatures being considered.
Xueren Wang has continued to design and analyze the FW with tungsten pins, mainly to reduce the thermal stresses and plastic strains, and avoid ratcheting in the first wall. He has increased the front plate (F82H) thickness from 1 mm to 2 mm to reduce the primary stresses and plastic strains while keeping the same thickness of the ODS plate (3 mm). In order to make the total thickness of the FW armor consistent to that of the nominal FW (38 mm) he shortened the height of the cooling channel from 30 mm to 27 mm. He sent the CAD geometry of the FW and divertor surfaces of the ARIES-ACT to Laila for the neutronics analysis.
Laila El-Guebaly said she received Xueren's CAD drawings. She has no data on the neutron source distribution within the ARIES-ACT plasma. She will request such data from Chuck Kessel to develop the 3-D neutron wall loading distribution at the FW and divertor.
Alan Turnbull is attempting to benchmark the code data with the NSTX discharge data. He is planning to discuss his recent results at the January meeting.