Panel Discussion ISLA-2011 April 27-29, 2011 Session VII. Panel Discussion “ Is lithium PFC viable in magnetic fusion reactors such as ITER?” [11:00 – 12:30] Panel Members: R. Goldston (ITER/Reactor), F. Groeschel (IFMIF), Y. Hirooka (IFE), S. Mirnov (Innovative Ideas), G. Mazzitelli (Tokamaks), M. Ono (Chair), D. Ruzic (LiMIT), F. L. Tabarés (non-tokamak) , A. Ying (TBM) 11:00 – 11:45: Comments from Panel Members 11:45 – 12:30: Panel Discussion 1
Session VII. Panel Discussion. “ Is lithium PFC viable in magnetic fusion reactors such as ITER?” [11:00 – 12:30] - PowerPoint PPT Presentation
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Panel Discussion ISLA-2011 April 27-29, 2011
Session VII. Panel Discussion
“ Is lithium PFC viable in magnetic fusion reactors such as ITER?” [11:00 – 12:30]
Panel Members: R. Goldston (ITER/Reactor), F. Groeschel (IFMIF), Y. Hirooka (IFE), S. Mirnov (Innovative Ideas), G. Mazzitelli (Tokamaks), M. Ono (Chair), D. Ruzic (LiMIT), F. L. Tabarés (non-tokamak), A. Ying (TBM)
11:00 – 11:45: Comments from Panel Members
11:45 – 12:30: Panel Discussion
1
Panel Discussion ISLA-2011 April 27-29, 2011
1. Handling Divertor High Heat Flux
2. Removal of D, T, Impurities
3. Divertor Steady-State Heat Removal
4. Liquid Lithium Flow in Magnetic Field
5. Long Term Lithium Corrosion
6. Flowing Liquid Lithium Safety
7. Compatibility with Hot Wall2
Issues for Lithium Reactor Applications
Panel Discussion ISLA-2011 April 27-29, 2011
First Wall / BlanketAt 500°C – 700°C?Lithium is not likely to be on this surface.
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Core ReactingPlasma
Edge Plasma
Scrape Off Layer
Flowing Liquid Lithium Divertor Tray
(LLDT)200°C – 400°C LL
Circulation Pump
LLPurificati
onand
Cooling System
D, T, Impurities
Cooling line
Divertor Heat and
Particle Flux
~ 400°C
~ 200°C
Flowing Liquid Lithium System
LLDT
Flowing Liquid Lithium Divertor Tray an Ultimate Solution?Necessary “Ingredients” are Coming Together?!
Panel Discussion ISLA-2011 April 27-29, 2011
1. Handling Divertor High Heat Flux
2. Removal of D, T, Impurities
3. Divertor Steady-State Heat Removal
4. Liquid Lithium Flow in Magnetic Field
5. Long Term Lithium Corrosion
6. Flowing Liquid Lithium Safety
7. Compatibility with Hot Wall4
Issues for Lithium Reactor Applications
Panel Discussion ISLA-2011 April 27-29, 2011
Heat Flux Questions:
• Liquid lithium appears to handle high heat flux well. CDX-U, LiMIT, LLL, Goh
• Lithium reduces divertor heat flux? NSTX
• Can liquid lithium carry out necessary steady-state heat flux? IFMIF experience?
• Can liquid lithium divertor handle ultra high transient heat flux such as the ELM heat flux issue? Transient 100 MW/m2 Partial lithium vaporization.