FIRE Engineering Summary . Phil Heitzenroeder for the FIRE Engineering Team Presented to the FIRE Physics Validation Review Committee March 30, 2004. Outline. FIRE and its Status Engineering Evaluations of Coil Systems * R&D Plans for the Coil Systems * Costs Summary.
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FIRE Engineering Team
Presented to the FIRE Physics Validation Review Committee March 30, 2004
*This talk concentrates on the coil systems since the other key engineering systems
are covered in presentations by B. Nelson and M. Ulrickson.
CRITICAL DESIGN ISSUES:
1. FOCUS in an expeditious manner on 2 Designs along the Q = 10 “zone,” (not the “Baseline” design) that indicate, at the Pre-Conceptual Design level, an Engineering Margin value in the range of 1.2 to 1.3. (Done)This level of margin should also apply to the insulation schemes. (Agreed)
2. Then FOCUS, in an expeditious manner on one device, either Wedged or Bucked/Wedged (to be selected by the design team.) Done, Wedged 10T chosen
3. Incorporated in the focusing effort should also be the immediate design attention to the details of leads, both TF and CS, associated cooling fittings and design of all other critical systems that are lacking detail at the Pre-Conceptual level - (Not done, limited resources used to address more global issues - I.e.,rep rate)- See the material below and the associated attached chits. (about 1/3 of the chits have been addressed await resources for more detailed items.)
CRITICAL R&D ISSUES:
1. The qualification of the properties, through R&D of the TF coil Materials (OFHC for the Bucked/Wedged and BeCu for the Wedged device) in sizes and thickness that are representative of those required for fabrication. (Agreed, also Elbrudor for PF, will pursue if CD-0)
2. For either device, the qualification, through R&D, of materials, that are available today, for the insulation systems. (Agreed, 4 Small Business Innovative Research grants awarded by DOE for insulation development in support of FIRE/fusion needs.)
Modular Tungsten Brush Divertors
Double Walled VV with Integral Shielding.
LN2 Cooled Copper
LN2 Cooled Segmented Central Solenoid
LN2 Cooled wedged Cu TF Coils
Stress and fatigue evaluations are performed in accordance with the FIRE Structural Design Criteria.
Structural model showing out of plane displacements
Figure 6. Central Solenoid / TF InterfaceEngineering Status of the Central Solenoid and PF Coils
As noted in the previous slide, the CS-2 coil falls short of the 20 X life “ASME-Like” fatigue, based on currently available fatigue information on Elbrodur .