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Author: Jinbiao Xiong
Publisher: Frontiers Media SA
ISBN: 2889745236
Category : Technology & Engineering
Languages : en
Pages : 129
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Book Description
Author: Jinbiao Xiong
Publisher: Frontiers Media SA
ISBN: 2889745236
Category : Technology & Engineering
Languages : en
Pages : 129
Get Book Here
Book Description
Author: National Academies Of Sciences Engineeri
Publisher: National Academies Press
ISBN: 9780309295086
Category : Science
Languages : en
Pages : 0
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Book Description
The United States has deployed commercial nuclear power since the 1950s, and as of 2021, nuclear power accounts for approximately 20 percent of U.S. electricity generation. The current commercial nuclear fleet consists entirely of thermal-spectrum, light water reactors operating with low-enriched uranium dioxide fuel in a once-through fuel cycle. In recent years, the U.S. Congress, U.S. Department of Energy, and private sector have expressed considerable interest in developing and deploying advanced nuclear reactors to augment, and possibly replace, the U.S. operating fleet of reactors, nearly all of which will reach the end of their currently licensed operating lives by 2050. Much of this interest stems from the potential ability of advanced reactors and their associated fuel cycles - as claimed by their designers and developers - to provide a number of advantages, such as improvements in economic competitiveness, reductions in environmental impact via better natural resource utilization and/or lower waste generation, and enhancements in nuclear safety and proliferation resistance. At the request of Congress, this report explores merits and viability of different nuclear fuel cycles, including fuel cycles that may use reprocessing, for both existing and advanced reactor technologies; and waste management (including transportation, storage, and disposal options) for advanced reactors, and in particular, the potential impact of advanced reactors and their fuel cycles on waste generation and disposal.
Author:
Publisher:
ISBN:
Category : Nuclear facilities
Languages : en
Pages : 15
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Book Description
Current U.S. nuclear energy policy focuses on the near-term construction of improved versions of existing nuclear power plants. All of today's U.S. nuclear plants are light water reactors (LWRs), which are cooled by ordinary water. Under current policy, the highly radioactive spent nuclear fuel from LWRs is to be permanently disposed of in a deep underground repository. The Bush Administration is also promoting an aggressive U.S. effort to move beyond LWR technology into advanced reactors and fuel cycles. Specifically, the Global Nuclear Energy Partnership (GNEP), under the Department of Energy (DOE) is developing advanced reprocessing (or recycling) technologies to extract plutonium and uranium from spent nuclear fuel, as well as an advanced reactor that could fully destroy long-lived radioactive isotopes. DOE's Generation IV Nuclear Energy Systems Initiative is developing other advanced reactor technologies that could be safer than LWRs and produce high-temperature heat to make hydrogen. DOE's advanced nuclear technology programs date back to the early years of the Atomic Energy Commission in the 1940s and 1950s. In particular, it was widely believed that breeder reactors -- designed to produce maximum amounts of plutonium from natural uranium -- would be necessary for providing sufficient fuel for a large commercial nuclear power industry. Early research was also conducted on a wide variety of other power reactor concepts, some of which are still under active consideration. Although long a goal of nuclear power proponents, the reprocessing of spent nuclear fuel is also seen as a weapons proliferation risk, because plutonium extracted for new reactor fuel can also be used for nuclear weapons. Therefore, a primary goal of U.S. advanced fuel cycle programs, including GNEP, has been to develop recycling technologies that would not produce pure plutonium that could easily be diverted for weapons use. The "proliferation resistance" of these technologies is subject to considerable debate. Much of the current policy debate over advanced nuclear technologies is being conducted in the appropriations process. For FY2009, the House Appropriations Committee recommended no further funding for GNEP, although it increased funding for the Generation IV program. Typically, the Senate is more supportive of GNEP and reprocessing technologies. Recent industry studies conducted for the GNEP program conclude that advanced nuclear technologies will require many decades of government-supported development before they reach the current stage of LWRs. Key questions before Congress are whether the time has come to move beyond laboratory research on advanced nuclear technologies to the next, more expensive, development stages and what role, if any, the federal government should play.
Author: Shripad T. Revankar
Publisher: BoD – Books on Demand
ISBN: 9535100424
Category : Technology & Engineering
Languages : en
Pages : 188
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Book Description
Worldwide there are more than 430 nuclear power plants operating and more plants are being constructed or planned for construction. For nuclear power to be sustainable the nuclear fuel must be sustainable and there should be adequate nuclear fuel waste management program. Continuous technological advances will lead towards sustainable nuclear fuel through closed fuel cycles and advance fuel development. This focuses on challenges and issues that need to be addressed for better performance and safety of nuclear fuel in nuclear plants. These focused areas are on development of high conductivity new fuels, radiation induced corrosion, fuel behavior during abnormal events in reactor, and decontamination of radioactive material.
Author: Kenneth L Nash
Publisher: Elsevier
ISBN: 0857092278
Category : Technology & Engineering
Languages : en
Pages : 513
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Book Description
Advanced separations technology is key to closing the nuclear fuel cycle and relieving future generations from the burden of radioactive waste produced by the nuclear power industry. Nuclear fuel reprocessing techniques not only allow for recycling of useful fuel components for further power generation, but by also separating out the actinides, lanthanides and other fission products produced by the nuclear reaction, the residual radioactive waste can be minimised. Indeed, the future of the industry relies on the advancement of separation and transmutation technology to ensure environmental protection, criticality-safety and non-proliferation (i.e., security) of radioactive materials by reducing their long-term radiological hazard.Advanced separation techniques for nuclear fuel reprocessing and radioactive waste treatment provides a comprehensive and timely reference on nuclear fuel reprocessing and radioactive waste treatment. Part one covers the fundamental chemistry, engineering and safety of radioactive materials separations processes in the nuclear fuel cycle, including coverage of advanced aqueous separations engineering, as well as on-line monitoring for process control and safeguards technology. Part two critically reviews the development and application of separation and extraction processes for nuclear fuel reprocessing and radioactive waste treatment. The section includes discussions of advanced PUREX processes, the UREX+ concept, fission product separations, and combined systems for simultaneous radionuclide extraction. Part three details emerging and innovative treatment techniques, initially reviewing pyrochemical processes and engineering, highly selective compounds for solvent extraction, and developments in partitioning and transmutation processes that aim to close the nuclear fuel cycle. The book concludes with other advanced techniques such as solid phase extraction, supercritical fluid and ionic liquid extraction, and biological treatment processes.With its distinguished international team of contributors, Advanced separation techniques for nuclear fuel reprocessing and radioactive waste treatment is a standard reference for all nuclear waste management and nuclear safety professionals, radiochemists, academics and researchers in this field. - A comprehensive and timely reference on nuclear fuel reprocessing and radioactive waste treatment - Details emerging and innovative treatment techniques, reviewing pyrochemical processes and engineering, as well as highly selective compounds for solvent extraction - Discusses the development and application of separation and extraction processes for nuclear fuel reprocessing and radioactive waste treatment
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Book Description
Prominent among the policy issues currently before Congress is the direction of the existing nuclear energy programs in the U. S. Department of Energy (DOE). [...] The priority given to these options depends not only on the characteristics of existing and advanced nuclear technologies, but on the role that nuclear power is expected to play in addressing national energy and environmental goals. [...] Reprocessing, or recycling, of spent nuclear fuel for use in "fast" reactors - in which the neutrons are not slowed - is intended to address some of the shortcomings of the LWR once-through fuel cycle. [...] But the waste resulting from reprocessing would have nearly the same short-term radioactivity and heat as the original spent fuel, because the reprocessing waste consists primarily of fission products, which generate most of the radioactivity and heat in spent fuel. [...] The primary safety vulnerability of LWRs is a loss-of-coolant accident, in which the water level in the reactor falls below the nuclear fuel.
Author: Ali Zamani Paydar
Publisher: Elsevier
ISBN: 0443189900
Category : Technology & Engineering
Languages : en
Pages : 454
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Book Description
Nuclear engineers advancing the energy transition are understanding more about the next generation of nuclear plants; however, it is still difficult to access all the critical types, concepts, and applications in one location. Advanced Reactor Concepts (ARC): A New Nuclear Power Plant Perspective Producing Energy gives engineers and nuclear engineering researchers the comprehensive tools to get up to date on the latest technology supporting generation IV nuclear plant systems. After providing a brief history of this area, alternative technology is discussed such as electromagnetic pumps, heat pipes as control devices, Nuclear Air-Brayton Combined Cycles integration, and instrumentation helping nuclear plants to provide dispatchable electricity to the grid and heat to industry. Packed with examples of all the types, benefits, and challenges involved, Advanced Reactor Concepts (ARC) delivers the go-to reference that engineers need to advance safe nuclear energy as a low-carbon option. - Describes theory and concepts on generation IV technology such as advanced reactor concepts (ARC) and electromagnetic pumps, and compares different types and sizes. - Sets out the energy transition with critical carbon-free technology that can supplement intermittent power sources such as wind and solar. - Explains alternative heat storage technology, including Nuclear Air-Brayton Combined Cycles. - Introduces advanced main instrumentation systems for in-core probes.
Author: Mary Beth Dunham Nikitin
Publisher: Nova Publishers
ISBN: 9781604565638
Category : Business & Economics
Languages : en
Pages : 90
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Book Description
After several decades of decline and disfavour, nuclear power is attracting renewed interest. New permit applications for 30 reactors have been filed in the United States, and another 150 are planned or proposed globally, with about a dozen more already under construction. In the United States, interest appears driven, in part, by provisions in the 2005 Energy Policy Act authorising streamlined licensing that combine construction and operating permits, and tax credits for production from advanced nuclear power facilities. Moreover, the U.S. Department of Energy proposes to spend billions of dollars to develop the next generation of nuclear power technology.
Author: National Research Council
Publisher: National Academies Press
ISBN: 0309043956
Category : Science
Languages : en
Pages : 234
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Book Description
The construction of nuclear power plants in the United States is stopping, as regulators, reactor manufacturers, and operators sort out a host of technical and institutional problems. This volume summarizes the status of nuclear power, analyzes the obstacles to resumption of construction of nuclear plants, and describes and evaluates the technological alternatives for safer, more economical reactors. Topics covered include: Institutional issues-including regulatory practices at the federal and state levels, the growing trends toward greater competition in the generation of electricity, and nuclear and nonnuclear generation options. Critical evaluation of advanced reactors-covering attributes such as cost, construction time, safety, development status, and fuel cycles. Finally, three alternative federal research and development programs are presented.
Author: United States. Congress. Senate. Committee on Appropriations. Subcommittee on Energy and Water Development
Publisher:
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 72
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Book Description
