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Tuesday, July 21, 2020 | History

2 edition of ATBR-A thorium breeder reactor concept for an early induction of thorium found in the catalog.

ATBR-A thorium breeder reactor concept for an early induction of thorium

ATBR-A thorium breeder reactor concept for an early induction of thorium

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Published by Bhabha Atomic Research Centre in Mumbai, India .
Written in English

    Subjects:
  • Thorium.

  • Edition Notes

    Statementby V. Jagannathan ... [et al.].
    SeriesBARC external ;, BARC/1999/E/017
    ContributionsJagannathan, V., Bhabha Atomic Research Centre.
    Classifications
    LC ClassificationsMicrofiche 2000/60394 (T)
    The Physical Object
    FormatMicroform
    Paginationii, 61 p.
    Number of Pages61
    ID Numbers
    Open LibraryOL6816425M
    LC Control Number00288637

      In early , China's Academy of Sciences launched a major research and development program on Liquid Fluoride Thorium Reactor (LFTR) technology, which . Fort St. Vrain in Colorado was a commercial thorium reactor. The concept is out there, but there are so many barriers in place against new nuclear power plants right now. Maybe in another 10 years it will be worth it build more. If natural gas prices go way up, Small Modular Reactors .

      So proven designs for thorium-based reactors exist and need but for some support. Well, maybe quite a bit of support. One of the biggest challenges in developing a thorium reactor is finding a way to fabricate the fuel economically. Making thorium dioxide is expensive, in part because its melting point is the highest of all oxides, at 3,° C. This is the basis of a thorium reactor. The Thorium Energy Cycle, by Suzanne Hobbs, PopAtomic Studios From the early s to the mids, an active R&D program at Oak Ridge National Laboratory in Tenn. came up with a promising way to use thorium for making large amounts of energy cleanly and safely.

    thorium. This talk will examine the history of thorium reactors; discuss reasons why there are so few thorium fuelled reactors today and look at new designs for thorium reactors proposed and prototypes now being built. About the presenter: Dr John Harries is a physicist with extensive experience on the physics of nuclear.   Granted this was not a Thorium breeder reactor, but it proves nuclear reactors can be made lightweight. Thorium reactor may be made even lighter as long as they are not of the breeder type. No need for evacuation zones, can be placed near urban areas. Thorium reactors operate at atmospheric pressure and have a very high negative temperature.


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ATBR-A thorium breeder reactor concept for an early induction of thorium Download PDF EPUB FB2

ATBR - A THORIUM BREEDER REACTOR CONCEPT FOR EARLY INDUCTION OF THORIUM WITH NO FEED ENRICHMENT V. Jagannathan Theoretical Physics Division Introduction Fission energy is released by splitting of a heavy nuclide into two or more lighter ones.

Impinging a target nuclide like U with a neutron, one can induce the fission reaction. The fission. Abstract - A new reactor concept has been proposed for induction of thorium in an enriched uranium reactor.

The neutronic characteristics of the fissile and fertile materials have been exploited to arrive at optimal fuel assembly and core configurations. Each fuel assembly consists of an enriched uranium seed zone and a thoria blanket zone. A breeder reactor is a nuclear reactor that generates more fissile material than it consumes.

Breeder reactors achieve this because their neutron economy is high enough to create more fissile fuel than they use, by irradiation of a fertile material, such as uranium or thorium that is loaded into the reactor along with fissile fuel.

Breeders were at first found attractive because they. Thorium-based nuclear power generation is fueled primarily by the nuclear fission of the isotope uranium produced from the fertile element ing to proponents, a thorium fuel cycle offers several potential advantages over a uranium fuel cycle—including much greater abundance of thorium on Earth, superior physical and nuclear fuel properties, and reduced nuclear waste production.

Early neutron experiments generating the physics data on thorium and U were carried out in the late s and early s in the Advanced Epithermal Thorium Reactor (AETR) at Oak Ridge. Following this, in the s and s, whole-core demonstrations of thorium–uranium oxide fuels in LWR were carried out with two different approaches.

Thorium reactors are the latest big thing in nuclear spin. Noel Wauchope says: don't believe the hype. Thorium reactors are the latest flavour in nuclear power hype. According to their enthusiastic proponents, these reactors will be “smaller, safer, cheaper, cleaner”, will take over the energy market in great numbers, and will reinvent the global energy landscape and sketch an end to.

With the end of research on thorium reactors came the end of ambitious research on protactinium separations. Over time, the role of protactinium in obtaining weaponizable uranium from thorium was largely forgotten or dismissed by the thorium community.

Thorium reactors born again. Fast forward to Breeder reactor, nuclear reactor that produces more fissionable material than it consumes to generate energy.

This special type of reactor is designed to extend the nuclear fuel supply for electric power generation. Whereas a conventional nuclear reactor can use only the readily fissionable but more scarce isotope uranium for fuel, a breeder reactor employs either uranium or thorium.

Trying to determine the economic viability of Thorium reactors with our present level of knowledge is very difficult. There really is no basis for estimating the initial cost of any power plant until there is a pretty solid design concept that is. Thorium breeder reactors as a power source for 21st century and beyond.

Viswanathan Jagannathan Induction of fertile thorium and the depleted uranium in large measure would widen the nuclear material base and ensure energy supply for centuries. The idea of thorium breeders discussed and presented by the author can be studied by several.

The Uranium and we use in modern nuclear fission reactors are humanity's single most energy-dense fuel source (1, MJ/L), but that potent power potential comes at a steep. "Thorium-based fast breeder reactors are a technology in the making and it is too early to comment on the commercial benefits which the country can have in accomplishing it.

But certainly, the success would mean a growth in the technology, which is vital for the energy requirements," Ajey Lele, the senior fellow at the New Delhi based Institute.

As the search for cheap, safe and non-carbon emitting sources of energy continues, a band of scientists say the answer may be nuclear reactors fueled by thorium. Others caution that thorium.

Thorium Breeder Reactors are most suitable for India because. these develop more power. its technology is simple. abundance of thorium deposits are available in India.

these can be easily designed. Answer: Option C. Earlier, India produced the world's first thorium nuclear reactor, the Kakrapar-1, inand as part of India's three-stage fuel cycle plan, a new Advanced Heavy Water Reactor (AHWR) is being designed, slated for operation in The country hopes to use thorium-based reactors to meet 30 per cent of its electricity demands by India has had a long standing road map in place called the “Three-stage Nuclear Programme”.

As this report in the Nucelar Monitor stated, in the first stage, plutonium was to be ‘created in its pressurized heavy water reactors (PHWRs) and extracted by reprocessing.

In the second stage, Fast Breeder Reactors (FBRs)’ were to use this plutonium to breed uranium in a thorium blanket. Instead of using uranium-plutonium fuel like a liquid metal fast breeder reactor, the light water breeder reactor used uranium-thorium. In a process very similar to the one that produces fissile plutonium from U, it is possible to produce a fissile isotope of uranium, U, from thorium   In the second stage, Fast Breeder Reactors (FBRs)’ were to use this plutonium to breed uranium in a thorium blanket around the core.

In the final stage, the FBR’s were to use thorium. However, technically speaking the current technologies for using the thorium as a nuclear fuel would require a fast breeder reactor utilizing the existing uranium/plutonium cycle until the breeder.

Thorium-based nuclear power is nuclear reactor-based electrical power generation fueled primarily by the nuclear fission of the isotope uranium produced from the fertile element ing to proponents, a thorium fuel cycle offers several potential advantages over a uranium fuel cycle—including much greater abundance on Earth, superior physical and nuclear fuel.

What is Thorium? Thorium is a silvery metal with radioactive properties that was discovered in by Jöns Jakob Berzelius (a Swedish chemist) and was named after Thor (the famous Norse god of thunder).

In terms of radioactivity, thorium is a nuclear fuel that can be used in reactors to generate low-carbon electricity, but operates in the Thorium-Uranium (Th-U) fuel cycle.One of the many ways in which DBI technology differs is that DBI Thorium Reactors are designed to breed the artificial uranium from thorium, burn most of that fuel as soon as it is bred, and store the minor amount of unburned fuel— all in situ.

Taking advantage of the benefits of thorium, a DBI Thorium Reactor can produce electricity for. Others see thorium as a smokescreen to perpetuate the status quo: the world's only operating thorium reactor – India's Kakrapar-1 – is actually a converted PWR, for example.