Frank Shu speaks on the Astrophysics of Thorium Molten-salt Breeder Reactors
Ғылым және технология
Many experts believe that a solution for climate change, especially in nations that are still trying to develop their economies, is not possible without nuclear power. However, among the general public there is discomfort about the four S’s:
• Sustainability (including the problem of the disposal of nuclear waste)
• Security (against the increase of nuclear weapons in the world)
• Superiority (cost for electricity generation relative to coal or natural gas)
• Safety (eliminate the danger of large-scale release of radioactivity)
Under the leadership of its top nuclear scientists, India has a far-sighted program to address these concerns by switching from the current fuel cycle of light-water reactors burning uranium-235 to an alternative fuel cycle that would burn uranium-233 bred from thorium-232 (the only form of thorium found in the world, and for which India has rich deposits). From the perspective of theoretical astrophysics, Prof. Shu argued that the best reactor to achieve the four-S goal uses, not solid fuel elements, but liquid fuel elements in the form of molten salts. Knowledge of how specific isotopes are produced in the big bang, in advanced stages of stellar evolution, and in cosmic rays, help in the choice of the composition of the salts and the materials used in the construction of molten-salt breeder reactors (MSBRs). The exchange of the kinetic energies of neutrons and atomic nuclei in a spherical reactor is akin to similar interactions among low-mass and high-mass stars in a globular cluster, the basic equations for which were formulated by S. Chandrasekhar in the 1940s. Tailoring the nuclear reactions to favour the formation of certain isotopes versus competitors has an analogy with the s- and r-processes of neutron-capture transformations in pre-supernova stars. Achieving economic superiority relative to other sources of energies relies on a basic understanding of energy hierarchies in the natural world. Managing the decay heat in fuel salt dumped into metal tanks in severe emergencies benefits from knowing how white dwarf stars cool by stages to a final inert state as a solid. If the world adopts sustainable, secure, superior, and safe thorium-MSBRs as the primary clean replacement for coal and natural gas, halting climate change could be a solved problem by the end of the twenty-first century without destroying the aspirations of future generations for a better life.
Пікірлер: 28
I'm from the USA!!!!! We're far, far from perfect! But very, very many of us send very, very much love, appreciation respect to/for the great scientists, seekers, searchers, leaders of loves knowledge!!!!!!!! Let us finally learn to play together, as one community of the undivided human race!!!! Instead of the racing towards EXTINCTION TOGETHER!!!!!!
At 51:20 the half-life of Protactinium (Pa233) is about 27 days (not 2 weeks) ; compare that to the 3 day half-life of Neptunium 238 when breeding Plutonium. You have a lot of time to chemically segregate the Pa233 away from the neutrons in the core to peacefully decay into the U233.
For the sake of my grandchildren I just hope that some sort of LFTR's come on line «soon enough», so that humankind can more easily adapt to an impending «global cooling» (hopefully just another «Litle Ice Age»).
Let's do this!
Excelente presentación, deberian de ponerven.marcha muchos en el.mundo ya que el calentamiento va muy de prisa, los carburantes oscilan mucho en precios , los otros sistemas son interrumpidos, este sistema está listo para ser la base de las energías de aquí al futuro.
Its relevant because understanding, truly understanding astrophysics, makes you understand the earth's molten core . And then once you understand that . You understand why mimicking earth's reactor is much more logical then trying to mimic a stars reactor
@n1mbusmusic606
4 жыл бұрын
beautiful. that was really great thank you. mind if I steal it for my presentation at school next spring? my chem teacher and I are throwing a re-education for nuclear event. If you want to participate in any way let me know.
Delicious. Thank you. 🌹
I just want to know, which of you commenters have made presentations of MSR at your local high school?
Dayum y'all got some good videos😎
🙏🙏🙏🙏
Let's hope government and large corperations to back commercial application and implantation of this technology!
"britain, france, deutchland, germany, sweden".... uh
He should have included solar in the compactness of equipment chart.
Just build a good theatre room for presentations to the international standards. See how Frank Shu is leaning all the way to show to the blurry picture of presentation.
@user-ec1py5nh8d
5 жыл бұрын
Why? The Indians don't show up as it is
@bobweiram6321
Жыл бұрын
Look at that beat up podium. The whole room is rundown. Do you expect anything better?
Listen to Dr. Valentina Zharkova re solar relation to earth temperature and why we have no climate emergency, just climate change that is not related to CO2.
4:12 speaker speaks
Excellent coverage of the topic. ***** In 3 years of amateur reviews, the Absolute Zero-infinity reference-framing of e-Pi-i i-reflection containment of Reciproction-recirculation Singularity positioning integration Apature in/of Elemental superposition Periodic Table of sync-duration bubble-modes and Standard Model spectrum of Superspin condensed log-antilog materials composed of AM-FM time-timing vertices in vortices. Ie the properties of chemicals and nuclei are quantization cause-effect holography dimensionality fractal conic-cyclonic modulo-geometrical interference coordination of embedded functional e-Pi-i superposition density-intensity real-numberness proportioning. It's Astrophysics, but more of the Holographic Principle Imagery projection-drawing Actuality than the half-truth illusionist's version derived from BBT. ***** Most of my personal understanding of "All is Vibration" in the circumstances of "Know your Self" ..to Be Here Now as composed of holography dimensionality and conscious awareness, came from India originally. This matters most, ..vertically integrated reciprocation-recirculation existence is a matter of QM-TIME Completeness nucleation, ie e-Pi-i infinitesimal sync-duration substantiation and "defence capability" in the manipulation of Energy, understood in terms of Fluxion-Integral Temporal 0-1-2-ness GD&P line-of-sight superposition, Calculus. "This Sentence is False", Mathematically speaking, because magical thinking and belief in the power of words to define human behaviour politically requires a different sense in common of functional phenomena such as the reality of Nuclear Power Generation to ensure continuity of humanity.
35:25 there is an unhappy, confusing coincidence of two different physics/chemical terms, using the same word "supercritical". This ambiguity has to be disentangled so that the public can understand it better! The sCO2 should be called super Carbon Dioxide, or supercharged (turbo) Carbon Dioxide, not supercritical CO2. in Reactor-Technology a nuclear reactor may become critical but never must become super-critical. Supercritical is too much, it is Tschernobyl. so I think the Chemists/Engineers should be convinced to replace the descriptive word to "supercharged" gasfluid in order to avoid wrong associations and dangerous confusion.
@miinyoo
Жыл бұрын
Turbo CO2 lol.