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Handling Of Uf6 In Us Gaseous Diffusion Plants
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Book Synopsis Handling of UF6 in U.S. Gaseous Diffusion Plants by :
Download or read book Handling of UF6 in U.S. Gaseous Diffusion Plants written by and published by . This book was released on 1978 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive systems analysis of UF6 handling has been made in the three U.S. gaseous diffusion plants and has resulted in a significant impact on the equipment design and the operating procedures of these facilities. The equipment, facilities, and industrial practices in UF6 handling operations as they existed in the early 1970's are reviewed with particular emphasis placed on the changes which have been implemented. The changes were applied to the systems and operating methods which evolved from the design, startup, and operation of the Oak Ridge Gaseous Diffusion Plant in 1945.
Author :United States. Congress. Senate. Committee on Appropriations. Subcommittee on Energy and Water Development Publisher : ISBN 13 : Total Pages :94 pages Book Rating :4.F/5 ( download)
Book Synopsis Paducah Gaseous Diffusion Plant by : United States. Congress. Senate. Committee on Appropriations. Subcommittee on Energy and Water Development
Download or read book Paducah Gaseous Diffusion Plant written by United States. Congress. Senate. Committee on Appropriations. Subcommittee on Energy and Water Development and published by . This book was released on 2000 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :United States. Congress. Senate. Committee on Energy and Natural Resources. Subcommittee on Energy Research, Development, Production, and Regulation Publisher : ISBN 13 : Total Pages :64 pages Book Rating :4.:/5 (51 download)
Book Synopsis Paducah Gaseous Diffusion Plant by : United States. Congress. Senate. Committee on Energy and Natural Resources. Subcommittee on Energy Research, Development, Production, and Regulation
Download or read book Paducah Gaseous Diffusion Plant written by United States. Congress. Senate. Committee on Energy and Natural Resources. Subcommittee on Energy Research, Development, Production, and Regulation and published by . This book was released on 2000 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Uranium Enrichment and Nuclear Weapon Proliferation by : Allan S. Krass
Download or read book Uranium Enrichment and Nuclear Weapon Proliferation written by Allan S. Krass and published by Routledge. This book was released on 2020-11-20 with total page 325 pages. Available in PDF, EPUB and Kindle. Book excerpt: Originally published in 1983, this book presents both the technical and political information necessary to evaluate the emerging threat to world security posed by recent advances in uranium enrichment technology. Uranium enrichment has played a relatively quiet but important role in the history of efforts by a number of nations to acquire nuclear weapons and by a number of others to prevent the proliferation of nuclear weapons. For many years the uranium enrichment industry was dominated by a single method, gaseous diffusion, which was technically complex, extremely capital-intensive, and highly inefficient in its use of energy. As long as this remained true, only the richest and most technically advanced nations could afford to pursue the enrichment route to weapon acquisition. But during the 1970s this situation changed dramatically. Several new and far more accessible enrichment techniques were developed, stimulated largely by the anticipation of a rapidly growing demand for enrichment services by the world-wide nuclear power industry. This proliferation of new techniques, coupled with the subsequent contraction of the commercial market for enriched uranium, has created a situation in which uranium enrichment technology might well become the most important contributor to further nuclear weapon proliferation. Some of the issues addressed in this book are: A technical analysis of the most important enrichment techniques in a form that is relevant to analysis of proliferation risks; A detailed projection of the world demand for uranium enrichment services; A summary and critique of present institutional non-proliferation arrangements in the world enrichment industry, and An identification of the states most likely to pursue the enrichment route to acquisition of nuclear weapons.
Book Synopsis Uranium Hexafluoride Packaging Tiedown Systems Overview at Portsmouth Gaseous Diffusion Plant, Piketon, Ohio. Revision 1 by :
Download or read book Uranium Hexafluoride Packaging Tiedown Systems Overview at Portsmouth Gaseous Diffusion Plant, Piketon, Ohio. Revision 1 written by and published by . This book was released on 1993 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Portsmouth Gaseous Diffusion Plant (PORTS) in Piketon, Ohio, is operated by Martin Marietta Energy Systems, Inc., through the US Department of Energy-Oak Ridge Operations Office (DOE-ORO) for the US Department of Energy-Headquarters, Office of Nuclear Energy. The PORTS conducts those operations that are necessary for the production, packaging, and shipment of uranium hexafluoride (UF6). Uranium hexafluoride enriched uranium than 1.0 wt percent 235U shall be packaged in accordance with the US Department of Transportation (DOT) regulations of Title 49 CFR Parts 173 (Reference 1) and 178 (Reference 2), or in US Nuclear Regulatory Commission (NRC) or US Department of Energy (DOE) certified package designs. Concerns have been expressed regarding the various tiedown methods and condition of the trailers being used by some shippers/carriers for international transport of the UF6 cylinders/overpacks. Because of the concerns about international shipments, the US Department of Energy-Headquarters (DOE-HQ) Office of Nuclear Energy, through DOE-HQ Transportation Management Division, requested Westinghouse Hanford Company (Westinghouse Hanford) to review UF6 packaging tiedown and shipping practices used by PORTS, and where possible and appropriate, provide recommendations for enhancing these practices. Consequently, a team of two individuals from Westinghouse Hanford visited PORTS on March 5 and 6, 1990, for the purpose of conducting this review. The paper provides a brief discussion of the review activities and a summary of the resulting findings and recommendations. A detailed reporting of the is documented in Reference 4.
Author :United States. Congress. Senate. Committee on Energy and Natural Resources. Subcommittee on Energy Research, Development, Production, and Regulation Publisher : ISBN 13 : Total Pages :88 pages Book Rating :4.F/5 ( download)
Book Synopsis Gaseous Diffusion Plant in Paducah, KY by : United States. Congress. Senate. Committee on Energy and Natural Resources. Subcommittee on Energy Research, Development, Production, and Regulation
Download or read book Gaseous Diffusion Plant in Paducah, KY written by United States. Congress. Senate. Committee on Energy and Natural Resources. Subcommittee on Energy Research, Development, Production, and Regulation and published by . This book was released on 2000 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Construction and Operation of a Depleted Uranium Hexafluoride Conversion Facility at the Paducah, Kentucky, Site by :
Download or read book Construction and Operation of a Depleted Uranium Hexafluoride Conversion Facility at the Paducah, Kentucky, Site written by and published by . This book was released on 2004 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Modeling and Analyses of Postulated UF6 Release Accidents in Gaseous Diffusion Plant by :
Download or read book Modeling and Analyses of Postulated UF6 Release Accidents in Gaseous Diffusion Plant written by and published by . This book was released on 1995 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Methods and Results for Stress Analyses on 14-ton, Thin-wall Depleted UF6 Cylinders by :
Download or read book Methods and Results for Stress Analyses on 14-ton, Thin-wall Depleted UF6 Cylinders written by and published by . This book was released on 1996 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: Uranium enrichment operations at the three US gaseous diffusion plants produce depleted uranium hexafluoride (DUF6) as a residential product. At the present time, the inventory of DUF6 in this country is more than half a million tons. The inventory of DUF6 is contained in metal storage cylinders, most of which are located at the gaseous diffusion plants. The principal objective of the project is to ensure the integrity of the cylinders to prevent causing an environmental hazard by releasing the contents of the cylinders into the atmosphere. Another objective is to maintain the cylinders in such a manner that the DUF6 may eventually be converted to a less hazardous material for final disposition. An important task in the DUF6 cylinders management project is determining how much corrosion of the walls can be tolerated before the cylinders are in danger of being damaged during routine handling and shipping operations. Another task is determining how to handle cylinders that have already been damaged in a manner that will minimize the chance that a breach will occur or that the size of an existing breach will be significantly increased. A number of finite element stress analysis (FESA) calculations have been done to analyze the stresses for three conditions: (1) while the cylinder is being lifted, (2) when a cylinder is resting on two cylinders under it in the customary two-tier stacking array, and (3) when a cylinder is resting on tis chocks on the ground. Various documents describe some of the results and discuss some of the methods whereby they have been obtained. The objective of the present report is to document as many of the FESA cases done at Oak Ridge for 14-ton thin-wall cylinders as possible, giving results and a description of the calculations in some detail.
Book Synopsis Construction and Operation of a Depleted Uranium Hexafluoride Conversion Facility at the Portsmouth, Ohio, Site by :
Download or read book Construction and Operation of a Depleted Uranium Hexafluoride Conversion Facility at the Portsmouth, Ohio, Site written by and published by . This book was released on 2004 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Oak Ridge Gaseous Diffusion Plant Staff Publications by : Evelyn Levine Hoey
Download or read book Oak Ridge Gaseous Diffusion Plant Staff Publications written by Evelyn Levine Hoey and published by . This book was released on 1960 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Proposed American Centrifuge Plant in Piketon, Ohio by :
Download or read book Proposed American Centrifuge Plant in Piketon, Ohio written by and published by . This book was released on 2006 with total page 382 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :United States. Congress. House. Committee on Commerce. Subcommittee on Oversight and Investigations Publisher : ISBN 13 : Total Pages :500 pages Book Rating :4.X/5 (5 download)
Book Synopsis The Paducah Gaseous Diffusion Plant by : United States. Congress. House. Committee on Commerce. Subcommittee on Oversight and Investigations
Download or read book The Paducah Gaseous Diffusion Plant written by United States. Congress. House. Committee on Commerce. Subcommittee on Oversight and Investigations and published by . This book was released on 2000 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :United States. Congress. Senate. Committee on Energy and Natural Resources. Subcommittee on Energy Publisher : ISBN 13 : Total Pages :92 pages Book Rating :4.F/5 ( download)
Book Synopsis Paducah Gaseous Diffusion Plant by : United States. Congress. Senate. Committee on Energy and Natural Resources. Subcommittee on Energy
Download or read book Paducah Gaseous Diffusion Plant written by United States. Congress. Senate. Committee on Energy and Natural Resources. Subcommittee on Energy and published by . This book was released on 2004 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Feasibility of Gas-phase Decontamination of Gaseous Diffusion Equipment by :
Download or read book Feasibility of Gas-phase Decontamination of Gaseous Diffusion Equipment written by and published by . This book was released on 1993 with total page 63 pages. Available in PDF, EPUB and Kindle. Book excerpt: The five buildings at the K-25 Site formerly involved in the gaseous diffusion process contain 5000 gaseous diffusion stages as well as support facilities that are internally contaminated with uranium deposits. The gaseous diffusion facilities located at the Portsmouth Gaseous Diffusion Plant and the Paducah Gaseous Diffusion Plant also contain similar equipment and will eventually close. The decontamination of these facilities will require the most cost-effective technology consistent with the criticality, health physics, industrial hygiene, and environmental concerns; the technology must keep exposures to hazardous substances to levels as low as reasonably achievable (ALARA). This report documents recent laboratory experiments that were conducted to determine the feasibility of gas-phase decontamination of the internal surfaces of the gaseous diffusion equipment that is contaminated with uranium deposits. A gaseous fluorinating agent is used to fluorinate the solid uranium deposits to gaseous uranium hexafluoride (UF6), which can be recovered by chemical trapping or freezing. The lab results regarding the feasibility of the gas-phase process are encouraging. These results especially showed promise for a novel decontamination approach called the long-term, low-temperature (LTLT) process. In the LTLT process: The equipment is rendered leak tight, evacuated, leak tested, and pretreated, charged with chlorine trifluoride (ClF3) to subatmospheric pressure, left for an extended period, possibly> 4 months, while processing other items. Then the UF6 and other gases are evacuated. The UF6 is recovered by chemical trapping. The lab results demonstrated that ClF3 gas at subatmospheric pressure and at (almost equal to) 75°F is capable of volatilizing heavy deposits of uranyl fluoride from copper metal surfaces sufficiently that the remaining radioactive emissions are below limits.
Book Synopsis Investigation of Technology for Monitoring UF6 Mass Flow by :
Download or read book Investigation of Technology for Monitoring UF6 Mass Flow written by and published by . This book was released on 1987 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The applicability of gas flow meters, in-line enrichment monitors, and instruments for measuring uranium or UF6 concentrations in process streams as a means for verifying declared plant throughput have been investigated. The study was performed to assist the International Atomic Energy Agency in the development of an effective international safeguards approach for aerodynamic uranium enrichment plants. Because the process gas in an aerodynamic enrichment facility is a mixture of UF6 and H2, a mass flow measurement in conjunction with a measurement of the uranium (or UF6) concentration in the process gas is required to quantify the amount of uranium being fed into, and withdrawn from, the cascades for nuclear materials accountability verification. In-line enrichment monitors developed for the US gas centrifuge enrichment plant are found to be applicable only to pure UF6 streams. Of the five gas flow meters evaluated, the orifice meter and the pitot tube meter are judged the best choices for the proposed applications: the first is recommended for low-velocity gas, small diameter piping; the latter, for high-velocity gas, large diameter piping. Of the six procedures evaluated for measurement of uranium or UF6 concentration in a mixed process stream, infrared-ultraviolet-visible spectrophotometry is judged to be the best procedure currently available to perform the required measurement. 4 refs., 3 figs., 3 tabs.
Book Synopsis Analysis of Cancer Risks in Populations Near Nuclear Facilities by : National Research Council
Download or read book Analysis of Cancer Risks in Populations Near Nuclear Facilities written by National Research Council and published by National Academies Press. This book was released on 2012-06-29 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the late 1980s, the National Cancer Institute initiated an investigation of cancer risks in populations near 52 commercial nuclear power plants and 10 Department of Energy nuclear facilities (including research and nuclear weapons production facilities and one reprocessing plant) in the United States. The results of the NCI investigation were used a primary resource for communicating with the public about the cancer risks near the nuclear facilities. However, this study is now over 20 years old. The U.S. Nuclear Regulatory Commission requested that the National Academy of Sciences provide an updated assessment of cancer risks in populations near USNRC-licensed nuclear facilities that utilize or process uranium for the production of electricity. Analysis of Cancer Risks in Populations near Nuclear Facilities: Phase 1 focuses on identifying scientifically sound approaches for carrying out an assessment of cancer risks associated with living near a nuclear facility, judgments about the strengths and weaknesses of various statistical power, ability to assess potential confounding factors, possible biases, and required effort. The results from this Phase 1 study will be used to inform the design of cancer risk assessment, which will be carried out in Phase 2. This report is beneficial for the general public, communities near nuclear facilities, stakeholders, healthcare providers, policy makers, state and local officials, community leaders, and the media.
