From: Hutch Neilson [hneilson@pppl.gov]
Sent: Thursday,
December 18, 2003 12:25 AM
To: Mike Zarnstorff; Wayne Reiersen; Bob
Simmons; Larry Dudek; Ron Strykowsky; Brad Nelson; John Schmidt; Hutch Neilson;
Jim Lyon
Subject: Summary of NCSX SIT Meeting of 12/15/03
Summary of NCSX System
Inegration Team (SIT) Meeting of Monday, December 15, 2003
1.
Recent DOE guidance on project baseline
(Hutch)
There were several discussions with OFES during the preceding
week concerning the NCSX project scope, funding profile, and definition of CD-4.
There will be further discussions within the government during the current
week, but the current expectation is as follows:
- Project funding guidance
profile will be flat at the FY-04 level through project completion.
- CD-4 requirements include
room temperature power tests with the cryostat off (as planned), and in
addition room temperature field mapping for engineering verification,
installation of the cryostat, and coil tests and first plasma generation with
the coils at cryogenic temperatures.
- The TEC will increase to
$88.2M, an increase of $7.2M over the PDR estimate. The increase is due to
PDR/PBR recommendations (+$2M), the additional CD-4 tasks (+$1.6M), and the
flattened profile (+$3.6M).
- The first plasma date will
be delayed to March, 2009, a delay of 18 months relative to the PDR schedule.
The stretchout is due to PDR/PBR recommendations (+2 months), the
additional CD-4 tasks (+4 months), and the flattened profile (+12
months).
The implications of reduced funding is that we will have
reduced financial flexibility for the critical fabrication activities.
2.
FY-04 Schedule Risks
We have made significant progress on
critical schedule risks and come to closure on some pending
decisions:
- We are retaining the
current vacuum vessel segmentation scheme. Art Brooks is tweaking the geometry
to try to increase plasma-wall spacing within the existing segmentation and
assembly constraints. ACTION: Wayne follow up with Art on status.
- We accept the PDR
recommendation to provide the capability to bake the vacuum vessel at 350 C
because it reduces costs and operation risks associated with the PFCs.
Budgetary estimates for the high-temperature heat treat have been
requested from the suppliers, but our engineering estimate is $75-100K.
An upper bound estimate for the additional tubing that may be required
is $100k, so the cost would be up to $200k. Goranson to refine estimates and
provided requested input to the PDR-->CD2 ECP.
- The port geometry is
converging. A solution has been found for accommodating the ICRF feeds.
Interferences involving the NBI port ducts and MC clamps have yet to be
resolved.
- Tom Brown’s MCWF model has
succeeded in modeling all 3 shapes and assembling them without interferences.
The 1/4-inch shim gap between sectors still needs to be incorporated. The
model has been adopted as the basis for design
development.
3. Technical Risks
Wayne led a discussion
of critical technical issues and updated a tracking list which has been
developed. The updated list was issued by Wayne on Dec. 16. One risk in
particular has been highlighted recently as needing greater
attention:
- Conductor testing and
R&D. We do not yet have an adequate plan to develop the reference material
properties and design criteria and resolve cure strain inconsistencies.
ACTION: Brad, develop the SOW for the R&D program.
4. Final Design
Activities
- Brad reported that a
complete drawing list is being developed with Tom Brown, identifying all parts
and the complete set of drawings and specifications needed to document the
design for implementation. The Pro/Intralink data base is being used, with
placeholders inserted for drawings not yet developed that need to be
developed.
- Wayne has issued a call
for input to a procurement plan that is being developed to provide a complete
schedule and description of all planned
procurements.
5. CD-2 preparations
- GRD: follow-up issues are
being addressed by Nelson, Zarnstorff, and Reiersen. Neilson will review the
GRD for possible changes resulting from recent DOE directions and PDR/PBR
recommendations.
- Review inputs and project
comments on the Project Execution Plan (PEP) are being incorporated by
Simmons.
- The PDR and PBR
disposition plans are out for review. The decisions on the major items
affecting cost and schedule have largely been made. Pamela Hampton is
following up with responsible individuals to obtain missing responses.
- The EIR disposition plan
is being updated (expanded) based on the draft EIR report received Dec. 5.
John Schmidt and Bob Simmons are working on resolution of the issues
with input from WBS managers as needed.
- Simmons issued a call for
input to the PDR --> CD2 ECP on Dec. 16. The ECP will incorporate the
impacts of review responses and revised DOE guidance on funding profiles and
CD-4 requirements. The 350C vacuum vessel bakeout requirement will be
incorporated. Project-initiated changes resulting from the WAF planning
and updating processes will, as a rule, not be incorporated into this ECP but
swept up at the next Lehman review. Exceptions will be considered
case-by-case. They may entail calls on
contingency.
6. Next SIT Meeting: Monday, December
22, 2003 at 11:00 a.m.
Summary by:
Hutch Neilson