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Fusion Energy Systems Studies:
1) Wrapping up the FNSF Study
2) Beginning the Liquid Metal PFC Study
C. E. Kessel, PPPL
VLT Conference Call, Jan 17, 2017
Fusion Energy Systems Studies This work was performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Security, LLC, Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344. LLNL-PRES-
Jan. 22-23, 2013
VLT Virtual Laboratory for Technology For Fusion Energy Science
Fusion Energy Systems Studies
PPPL: C. Kessel, P. Titus, Y. Zhai, W. Blanchard, A. Khodak INL: P. Humrickhouse, B. Merrill Univ Wis: A. Davis, L. El-‐Guebaly, P. Wilson, J. Blanchard, E. MarrioS UCLA: S. Smolentsev, N. Morley, A. Ying,…....….Y. Huang, N. Ghoniem LLNL: T. Rognlien, M. Rensink ORNL: A. Rowcliffe, L. Garrison, Y. Katoh MIT: G. Wallace, S. Wukitch UCSD: M. Tillack Consultants: S. Malang, L. Waganer, K. Young Others: P. Snyder (GA), P. Bonoli (MIT), C. MarZn (UW), M. Harb (UW)…...
The FNSF Study is Over, and 13 Papers are Being
SubmiSed to Fusion Engr & Design
Overview of the Fusion Nuclear Science Facility (FNSF), a Credible Break-‐in Step on the Path to Fusion Electricity ProducZon -‐ C. E. Kessel and FESS team Core Plasma Physics and Its Impact on the Fusion Nuclear Science Facility -‐ C. E. Kessel Scrape-‐off Layer Plasma and Neutral CharacterisZcs, and Their InteracZons with the Wall for Fusion Nuclear Science Facility -‐ M. E. Rensink and T. D. Rognlien Neutronics Aspects of the Fusion Nuclear Science Facility -‐ A. Davis, M. Harb, L. El-‐Guebaly, P. Wilson, E. MarrioS MulF-‐Physics Modeling of the First Wall and Blanket of the Fusion Nuclear Science Facility -‐ Yue Huang, N. Ghoniem, M. S. Tillack Tungsten Monoblock Concepts for the FNSF FW and Divertor -‐ Yue. Huang, M. Tillack, N. Ghoniem Effect of ELMs and DisrupFons on FNSF Plasma Facing Components -‐ J. P. Blanchard MHD Thermal Hydraulic Analysis and SupporZng R&D for the DCLL Blanket in the FNSF -‐ S. Smolentsev Magnet Design Study for the Fusion Nuclear Science Facility -‐ Y. Zhai, P. Titus, HeaFng and Current Drive Actuators for the FNSF in the Ion Cyclotron and Lower Hybrid Range of Frequency -‐ G. M. Wallace TriFum Aspects of the Fusion Nuclear Science Facility -‐ P. Humrickhouse and B. J Merrill ExaminaZon of the FNSF Maintenance Approach -‐ L. M. Waganer Materials challenges for the Fusion Nuclear Science Facility -‐ L. Garrison, A. F. Rowcliffe, Y. Katoh
Some Points & ObservaZons
Examined the FNSF as the first in a two step pathway to commercial power plants in the US Examined the convenZonal aspect raZo tokamak, and focused on moderate FNSF à A smaller step, warranted by the complexity of the combined nuclear and non-‐nuclear environment…moZvated by mulZ-‐factor environment, and significant gradients in these features...AND fission experience à Power plant relevance is mandatory, fusion faciliZes are composed of many technologies, there are only two steps to opZmize and make highly reliable/predictable à Blanket, divertor, RF launcher or other fusion core components require focusing (down-‐ selecZng)….carrying a program to address mulZple component concepts is impracZcal à 10 missions and way too many metrics were idenZfied, these help to understand how the FNSF moves us toward a power plant à A careful plasma strategy is required to provide the ultra-‐long duraZon plasmas at sufficient performance to meet the needs of the fusion nuclear mission à The databse systems analysis approach has helped us idenZfy a robust operaZng SPACE, allowing us to recover from plasma or engineering parameters that don’t go our way...and make sure the fusion nuclear mission can be met à Developing the program on the FNSF forces us to recognize the plasma physics needs in the DD phase, and the Zme-‐frames to reach the desired fusion nuclear goals à The Hot Cell will be a criZcal part of the facility to provide the handling and examinaZon of fusion components...and in establishing the actual in-‐service materials/components database
Smolentsev, UCLA, 3D MHD Blanchard, UW, disrupZon currents in W Wallace, MIT, ray-‐tracing HFS launch P. Titus, Y. Zhai, PPPL, TF structure and winding pack E. MarrioS, UW, CAD of FNSF Renskink & Rognlien, LLNL, detached divertor soluZons A/m^2
Neutron irradiaZon of individual materials in 1) fusion relevant neutron source, 2) fission reactor and doping, 3) ion bombardment Plasma facing components/plasma material interacZons in 1) tokamaks, 2) linear plasma devices, 3) offline (e.g. HHF, liquid metal) integrated PFC tesZng TriZum science (LiPb) Liquid metal science Integrated blanket component tesZng & ITER TBM progress (weak nuclear) Prototypical parameters & integraZon Enabling technologies Magnets Helium cooling DiagnosZcs Fueling/exhaust Heat exchanger TriZum processing HeaZng & current drive …... Plasma development in 1) short pulse DD tokamaks, 2) long pulse DD tokamaks (EAST, KSTAR, JT-‐60SA), 3) ITER burning plasmas PredicZve simulaZon development Integrated launcher/guide tesZng Integrated diagnosZc tesZng
Master Topics for pre-‐FNSF R&D
FESS, Next Project….Examine Liquid Metal
Plasma Facing Components
Examine LM PFCs in an Integrated Tokamak Facility (like the FNSF), to understand impacts and help to idenZfy where focused R&D can pay off In response to the PMI/PFC Workshop Priority Research DirecZons, and more detailed text Kick-‐off meeZng Feb 14-‐16, at DOE Headquarters, Germantown Review of ALPS/APEX Liquid metal candidates Solid support material candidates Loading environment Safety and triZum FNSF configuraZon Examples of LM PFC design concepts Review of LM free-‐surface models/simulaZon tools Impacts on integrated facility Workscopes for parZcipants
FESS LM PFC study, cont’d
~2 year duraZon Main phases
- Use exisZng design, such as FNSF, and examine the incorporaZon of LM PFCs into this facility….working through LM choices, LM properZes, LM flow and other behavior inside a tokamak, PFC designs and integraZon, etc.
- Establish a LM-‐FNSF (or power plant) design using knowledge established in first phase, taking advantage of the LM concepts and their impacts ParZcipants: FESS team and LM experts PPPL, Univ Wis, UCLA, ORNL, LLNL, INL, MIT, SRNL, LANL, GA, consultants
