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    Russian Nuclear Deals: News

    GarryB
    GarryB


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    Russian Nuclear Deals: News - Page 19 Empty Re: Russian Nuclear Deals: News

    Post  GarryB Fri Mar 29, 2024 6:10 am

    But if Russia could price their breeder reactors well they could have over half the African continent and Asia in their back pockets.

    Call me naive but this isn't about Russia trying to control Asia and Africa... this is about selling to them at a fair price the solid reliable energy they need to grow and develop without western control or ownership holding them back.

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    Arrow


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    Russian Nuclear Deals: News - Page 19 Empty Re: Russian Nuclear Deals: News

    Post  Arrow Thu Apr 25, 2024 7:07 pm

    What do you think about thorium reactors? Supposedly they produce much less radioactive waste, are more efficient, etc. Is this the future supposedly? Work on this type of reactors is mainly carried out by India and China. There is much more thorium than uranium. I wonder if Russia will also go in this direction.

    "LFTR reactors will dramatically reduce the size and long-term radioactive activity of their waste. For comparison, the fuel of light water reactors consists of over 95% of uranium-238, part of which is transformed through transmutation into plutonium-239, a highly toxic isotope belonging to the transuranium group. As you can see, just one reaction separates almost all of the light water reactor fuel from becoming long-term transuranium waste. The half-life of Pu-239, which has the largest share in transuranic waste from light water reactors, is 24,000 years. Transuranium waste along with Pu-239 is perceived by society as an insoluble problem. In contrast, the LFTR reactor will use a thorium fuel cycle in which thorium is converted to U-233. Because thorium is a lighter element, the formation of transuranium elements takes a longer time, requiring more neutron absorption than in the U-Pu cycle. The U-233 in the LFTR will be 90% fissioned and then the remaining 10% will be 80% fissioned to produce U-235. The percentage of fuel that will be converted to transuranium Neptunium-237 will most likely be only 2%, which is approximately 15 kg per 1 GWe-year[58]. This is a twenty times smaller amount of transuranium elements than that produced by a light water reactor, where their weight is 300 kg per 1 GWe-year. It is important that with such a small amount of transuranium elements being produced, LFTR will be able to perform ongoing recycling and introduce them into the core for final burning. Neptunium-237 returned to the core will absorb a neutron and then undergo beta decay to form Plutonium-238, which is a sought-after fuel for radioisotope thermoelectric generators that power space probes. However, in the case of reactors operating on U-238, full recycling is difficult and expensive due to the presence of a much larger amount of transuranium elements."

    "Thorium is at least 4-5 times more abundant in nature than all of uranium isotopes combined; thorium is fairly evenly spread around Earth with a lot of countries[52] having huge supplies of it; preparation of thorium fuel does not require difficult[51] and expensive enrichment processes; the thorium fuel cycle creates mainly Uranium-233 contaminated with Uranium-232 which makes it harder to use in a normal, pre-assembled nuclear weapon which is stable over long periods of time (unfortunately drawbacks are much lower for immediate use weapons or where final assembly occurs just prior to usage time); elimination of at least the transuranic portion of the nuclear waste problem is possible in MSR and other breeder reactor designs. "
    lancelot
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    Post  lancelot Thu Apr 25, 2024 11:52 pm

    Arrow wrote:What do you think about thorium reactors? Supposedly they produce much less radioactive waste, are more efficient, etc. Is this the future supposedly? Work on this type of reactors is mainly carried out by India and China. There is much more thorium than uranium. I wonder if Russia will also go in this direction.
    There is enough easily minable uranium to last the world for at least a century. Beyond that Russia is working on fast reactors. Because fast reactors burn the uranium better they would enable existing uranium fuel supplies to last for like 2500 years. Russia is working on two fast reactor technologies: sodium reactors, lead reactors.

    https://www.world-nuclear-news.org/Articles/Middle-tier-of-containment-installed-for-Brest-OD
    https://www.world-nuclear-news.org/Articles/BN-600-reactor-at-Beloyarsk-aims-to-get-new-life-e

    Thorium is another possible feedstock for making uranium fuel. But because thorium isn't fissile, just fertile, you would need to irradiate it with neutrons to create uranium before it can be used in a nuclear reactor. This is highly complicated but would also further increase the available fuel supply.

    India is probably the country most interested in thorium reactors because they don't have significant uranium deposits but have lots of thorium.

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    kvs
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    Post  kvs Fri Apr 26, 2024 2:54 am

    The fast neutron closed cycle gets around 50 time more energy out of Uranium than the conventional reactor approach.   Thorium can
    be converted to Uranium-233 inside fast neutron reactors in a practical way.   The infrastructure for this is in place with a closed fuel cycle.  
    Fuel reprocessing is something the west forgot to the point that America couldn't even reprocess its nuclear warhead fission cores.

    The fixation on nuclear weapons from fast neutron reactors in the west is demented. State actors can organize nuclear weapons production
    as they please. So the world is supposed to sit there and not use this amazing reactor technology because "terrorists" can supposedly
    strip reactors and reprocess the fuel into dirty bombs and other shit in some warehouse. Yeah, right.

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    GarryB
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    Post  GarryB Fri Apr 26, 2024 6:23 am

    What do you think about thorium reactors? Supposedly they produce much less radioactive waste, are more efficient, etc. Is this the future supposedly? Work on this type of reactors is mainly carried out by India and China. There is much more thorium than uranium. I wonder if Russia will also go in this direction.

    Fast breeder reactors essentially turn Uranium into a fully recyclable material where the radioactive waste is consumed in the normal processes of generating energy and used uranium rods refuelled in the process of storing them near the reactor pile generating power from enriched fuel rods.

    Being a closed cycle with no excess radioactive waste to deal with why would Russia spend money and time creating a new processing system with a different material?
    lyle6
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    Post  lyle6 Fri Apr 26, 2024 7:47 am

    GarryB wrote:
    Call me naive but this isn't about Russia trying to control Asia and Africa... this is about selling to them at a fair price the solid reliable energy they need to grow and develop without western control or ownership holding them back.
    On a good day most "nations" of the third world can't handle basic sanitation and yet you're fine with giving them the keys to nuclear energy...

    There are very good internal reasons why these shitholes are backward. You don't need to attribute everything to western imperialism - we have our agencies too.

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    JohninMK
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    Post  JohninMK Mon Jun 17, 2024 12:39 pm

    The West will not be able to do without Uranium from Russia. 


    This applies not only to the United States, but also to Europe, which depends on Russian fuel and services needed to maintain nuclear power plants. Russia is a leading nuclear power, and Rosatom is the world's number one supplier, stated the head of the IAEA Rafael Grossi 
    @DD_Geopolitics

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    lancelot
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    Post  lancelot Mon Jun 17, 2024 1:27 pm

    Nuclear is just 8% of US power consumption. A lot of the US allies would experience difficulties however.
    France has budgeted expansion of its enrichment facilities. Could be operational by decade's end.
    kvs
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    Post  kvs Mon Jun 17, 2024 2:30 pm

    If US clowns are going to push their global warming scam, they will have to generate much more of their energy from non-fossil sources.

    Nuclear power is the best option for reducing global CO2 emissions bar none. Waiting decades for fusion power which may never arrive is retarded.
    Wind and solar are gimmicks for Europe and northern latitudes and the lifecycle of the generation equipment releases vast amounts of CO2. Something
    not admitted by the "clean" energy clowns. Right now there is a problem with disposal of spent wind turbines. No solar panel and wind turbine lasts
    60 years. El Cheapo panels don't even last 10 years.






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    JohninMK
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    Post  JohninMK Mon Jun 17, 2024 3:28 pm

    kvs wrote:If US clowns are going to push their global warming scam, they will have to generate much more of their energy from non-fossil sources.

    Nuclear power is the best option for reducing global CO2 emissions bar none.   Waiting decades for fusion power which may never arrive is retarded.
    Wind and solar are gimmicks for Europe and northern latitudes and the lifecycle of the generation equipment releases vast amounts of CO2.   Something
    not admitted by the "clean" energy clowns.   Right now there is a problem with disposal of spent wind turbines.   No solar panel and wind turbine lasts
    60 years.   El Cheapo panels don't even last 10 years.

    The life of most turbine blades is only around 15 years, way shorter than panel life, with many out at sea Shocked

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