1. HARNESSING FUSION POWER POWER EXTRACTION Power Extraction Panel Preliminary Research Thrust Ideas Robust operation of blanket/firstwall and divertor systems at temperatures suitable for efficient power conversion PANEL MEMBERS: Neil Morley, Charlie Baker, Pattrick Calderoni, Richard Nygren, Arthur Rowcliffe, Mohamed Sawan, Ron Stambaugh, Grady Yoder UCLA, March 2-4, 2009 RENEW THEME IV WORKSHOP

2. HARNESSING FUSION POWER POWER EXTRACTION Greenwald Report on Initiatives I-7Engineering and materials physics modeling and experimental validation initiative - a coordinated and comprehensive research program I-9Component development and testing program - coordinated research and development for multi-effect issues in critical technology areas I-10Component qualification facility Slide 2  While there are definitely “single-effect” data still needed, don’t limit I-7 to just single-effect science  Focus 1-9 on preparation and execution of partially-integrated, to fully integrated environment/function experiments  Rename I-10 based on the knowledge gap, and not the facility

3. 3 Theory/Modeling/Database Basic Separate Effects Multiple Interactions Partially Integrated Property Measurement Phenomena Exploration Non-Fusion Facilities A Framework for Fusion Nuclear Science and Technology Development Design Codes, Predictive Cap. Component Fusion Env. Exploration Concept Screening Performance Verification Design Verification & Reliability Data Testing in Fusion Facilities (non neutron test stands, fission reactors and accelerator-based neutron sources, plasma physics devices)

4. HARNESSING FUSION POWER POWER EXTRACTION Suggestions for overarching thrusts and “granular” thrusts Slide 4 Building a fusion nuclear science and technology capability: A coordinated R&D and engineering design program  Single- (especially for LMs) and multiple-effect database  Validated predictive capability sufficient to proceed to design and interpret partially-integrated and integrated experiments  Reestablish FNST human resources, research capability, and expertise  Granular Thrusts Examples: –Fusion relevant thermofluid MHD for PbLi blankets thrust –RAFS, W fabrication methods and characterization thrust –Tritium transport and removal from the PbLi thrust –Chemistry and isotope control in coolant/breeder/purge flow streams –Ceramic breeder unit cell thermomechanics exploration thrust –Integrated modeling platform for multi-effect simulation thrust –Component level engineering design and analysis center –MHD and plasma coupling for liquid surfaces PFCs thrust –…

5. HARNESSING FUSION POWER POWER EXTRACTION Suggestions for overarching thrusts and “granular” thrusts Slide 5 Survive and grow in the fusion environment: Fusion break-in experiments for FW/blanket, material, and diagnostics performance  Partially- and fully integrated effects, failure, and reliability database  Validated predictive capability sufficient to proceed to design and interpret moderate fluence, long exposure experiments  Use test stands, fission reactors, plasma devices, ITER TBM (first ~10 years, HH->DT) and FNF initial operation (if available)  Granular Thrusts Examples –Fusion environment tolerant diagnostic capability –Partially-integrated mockup and prototype qualification testing –Virtual TBM: system wide modeling and validation –Prompt and cyclic fully integrated thermomechanical and thermofluid MHD responses –Corrosion and tritium transport in integrated blanket systems (early life) –Functional impact of radiation damage in ceramics (early life) –…

6. HARNESSING FUSION POWER POWER EXTRACTION Suggestions for overarching thrusts and “granular” thrusts Slide 6 Feasibly and reliability of the fusion power components: establishing tritium self-sufficiency and continuous high grade power extraction for fusion  Middle-life, fully integrated effect and reliability database  Validated predictive capability sufficient to design first Demo  Requires a new Fusion Nuclear Facility with long pulses, moderate NWL and fluence, and significant testing area and flexibility  Granular Thrusts Examples –Fusion material and component functional response to fusion spectrum irradiation (middle-life) –Multi-module interactions with common support and cooling systems –Validation of the principles of tritium self-sufficiency in complete system –Long pulse current drive and fueling in fusion environment –Failure modes, effects, rates and mean time to repair for random failures and planned outage (all in-vessel components) –Iterative design / test / fail / analyze / improve programs for reliability growth and safety (all in-vessel components) –…

7. HARNESSING FUSION POWER POWER EXTRACTION Give us your suggestions… Slide 7