Molten-Salt (tritium breeding blanket) for Fusion Reactors: Nuclear Tech Overlap
Dr. Charles Forsberg observes technological overlap in between Molten-Salt Reactor (fission) development and Blend Reactors due to manufacturing development of Rare-Earth Barium Copper Oxide (REBCO) Superconducting Magnets onto steel tape.
REBCO superconducting tape makes it possible for doubling magnetic fields.
Size of magnetic combination system for any given power output varies as one over the fourth power of the magnetic field. Greater magnetic fields can diminish combination system size by an order of magnitude, power density in the fusion blanket increases by an order of magnitude.
Higher power densities in the blanket make it difficult to cool solid blankets. High magnetic fields produce large incentives to have a coolant with low electrical conductivity to prevent coolant/magnetic field interactions.
REBCO Fusion Prefers a Molten-Salt (particularly FLiBe Salt) Blanket.
Why Flibe (Li2BeF4) Salt?
Maximize tritium production (90% Li-6) to produce adequate tritium for self-reliant fusion machine. Beryllium (n, 2 n) reaction produces more neutrons. Lithium plus neutron yields tritium. Outstanding heat transfer relative to other salts.
Flibe (Li2BeF4) Salt Combination Blankets Applicable to all Blend Technologies. ARC is the Very first Style with REBCO S uperconducting Magnets; Other Blend Systems Likely to Follow with Rewards for Flibe Blankets.
Synergisms In Between Flibe-Salt-Cooled Fission and Fusion Reactors:
– Standard science of salts
– Design tools
– Technology (materials, tritium control, salt purification, power cycles)
– Supply chains (equipment, FLiBe salt, lithium isotopic separation)
Synergisms Will Speed Up Development of All Salt Systems.
Dr. Charles Forsberg discussion provided at Oak Ridge Molten Salt Reactor Workshop 2019 [ ORNL MSRW 2019 ]: https://msrworkshop. ornl.gov/
THE PAPER: https://doi. org/10.1080/002954 …
Fusion Blankets and Fluoride-Salt-Cooled High-Temperature Reactors with Flibe Salt Coolant: Typical Obstacles, Tritium Control, and Opportunities for Synergistic Development Methods In Between Fission, Combination, and Solar Salt Technologies. Charles Forsberg, Guiqiu (Tony) Zheng, Ronald G. Ballinger & Stephen T. Lam
Abstract — Current developments in high-magnetic-field combination systems have actually created large rewards to develop flibe (Li2BeF4) salt combination blankets that have four operates: (1) convert the high energy of blend neutrons into heat for the power system, (2) convert lithium into tritium—the combination fuel, (3) guard the magnets against radiation, and (4) cool the first wall that separates the plasma from the salt blanket. Flibe is the same coolant proposed for fluoride-salt-cooled high-temperature reactors that usage tidy flibe coolant and graphite-matrix coated-particle fuel. Flibe is likewise the coolant proposed for some molten salt reactors (MSRs) where the fuel is dissolved in the coolant. The multiple applications for flibe as a coolant develop large incentives for cooperative fusion-fission programs for development of the underlying science, style tools, technology (pumps, instrumentation, salt filtration, materials, tritium removal, and so on), and supply chains. Other high-temperature molten salts are being established for alternative MSR systems and for sophisticated Gen-III concentrated solar power (CSP) systems. The overlapping characteristics of flibe salt with these other salt systems produce significant rewards for cooperative fusion-fission-solar programs in multiple areas. We describe the fission and blend flibe-cooled systems, what has actually developed this synergism, what is different and the exact same between fission and fusion in terms of using flibe, and the common obstacles. We review (1) the characteristics of flibe salts, (2) the status of the innovation, (3) the alternatives for tritium capture and control in the salt, heat exchangers, and secondary heat transfer loops, and (4) the coupling to power cycles with heat storage. The technology overlap in between flibe systems and other high-temperature MSR and CSP salt systems is described. This specifies where there are opportunities for cooperative programs throughout fission, blend, and CSP salt programs.
Note from the poster:
I was very first interested in Molten-Salt Reactors because it is possible to construct a 2- fluid design for breeding Thorium into U-233, and fueling a nuclear reactor with Thorium. The breeder blanket is FLiBe salt consisting of Thorium.
This talk showed how the exact same FLiBe salt acts nearly identically as a “breeder blanket” where it …
– Safeguards vessel walls from neutron radiation by taking in neutrons.
– Breeds brand-new fuel (U-233 or Tritium) to sustain fission or fusion.
– Transfers heat, leveraging the broad liquid temperature level variety of FLiBe.