The Curious Tale of Molten Salt Reactors - media.cns-snc.ca

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My Design Philosophy • “A designer knows he has achieved perfection not when there is nothing left to add, but when there is nothing left to take away.” Antoine de Saint-Exupery • Aim has been to simplify (or remove!) as much as possible • Removing as much technological uncertainty and needed R&D crucial to obtain private sector support
If simplicity the goal? What design? • Majority of my work has been improvements to final MSR work of ORNL in the late 1970s, the Denatured Molten Salt Reactor (DMSR) • Growing number of advocates agree simplified converters is the right approach • Quote from Xu Hongjie, head of Chinese program, ThEC 2012 question period: – “If you just want to use thorium as a fuel you don’t need C [conversion ratio] larger than 1, less than 1 is OK, maybe 0.8, you just assume consuming uranium with the thorium” • It’s well known the conversion ratio of the DMSR was 0.8 and would get more than half its energy through the thorium chain
Page 2 and 3: The Curious Tale of Molten Salt Rea
Page 4 and 5: The 1970s Single Fluid, Graphite Mo
Page 6 and 7: Some Design Constraints • ThF 4 a
Page 8 and 9: Design Choices Harder or Softer Spe
Page 10 and 11: Design Choices Denatured vs Pure Th
Page 12 and 13: U.S Historic Timeline • Early 197
Page 14 and 15: Kurchatov Institute Program Mid 197
Page 16 and 17: Conference on Molten Salts in Nucle
Page 20 and 21: Summary of Current World Efforts
Page 22 and 23: Chinese TMSR Program
Page 24 and 25: Reexamining MSRs • MSRs often tho
Page 28 and 29: DMSR Converter Reactors • Oak Rid
Page 30 and 31: FPs Fission Products Ingestion Radi
Page 32 and 33: Reactor Lifetime Uranium (t) Annual
Page 34 and 35: Suggested Improvements • Shorter
Page 36 and 37: Low Enriched Uranium Only DMSR •
Page 38 and 39: ORNL FHR Focus on Solid Block Fuel
Page 40 and 41: Thanks ORNL From “cooled” back
Page 42 and 43: Want Higher Power Density, More hea
Page 44 and 45: Where To From Here? • Worldwide i
Page 46 and 47: Introducing… Terrestrial Energy I
Page 48 and 49: EXTRA SLIDES…
Page 51 and 52: LWR Fuel Cycle Costs All assume 100
Page 53 and 54: MSBR Fuel Cycle Costs Estimate base
Page 55 and 56: DMSR Fuel Cycle Costs Estimate base
Page 57 and 58: What factors differentiate between
Page 59 and 60: Mid 60s ORNL Two Fluid MSBR
Page 61 and 62: Mid 60s ORNL Two Fluid MSBR Disadva
Page 63 and 64: Single Fluid Graphite MSBR (70s) Di
Page 65 and 66: Late 1970s DMSR Converter 30 Year O
Page 67 and 68: Traditional FUJI • Advantages vs
Page 69 and 70: 1 ½ Fluid MSFR (was TMSR) Design h
Page 71 and 72: 1 ½ Fluid MSFR (was TMSR) Disadvan
Page 73 and 74: Fusion Structural Materials Studied
Page 75 and 76: MSR 1/3 the total volume of PWR Com
Page 77 and 78:
All radiation within a sealed “Ho
Page 79 and 80:
Off Gas Both a Benefit and Challeng
Page 81 and 82:
Advantages of all Molten Salt React
Page 83 and 84:
A Brief History of Molten Salt Reac
Page 85 and 86:
A Brief History of Molten Salt Reac
Page 87 and 88:
I told you I’d bring this up Jess
Page 89 and 90:
Pebble Bed FHR (MIT, UCB, Wisconsin
Page 91:
Testing Pebble Flow UC Berkeley Als
Page 94 and 95:
What factors differentiate between
Page 96:
More on Molten Salt “Cooled” Re
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