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Tank Farm Nuclear Criticality Review
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Book Synopsis Tank Farm Nuclear Criticality Review by :
Download or read book Tank Farm Nuclear Criticality Review written by and published by . This book was released on 1996 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt: The technical basis for the nuclear criticality safety of stored wastes at the Hanford Site Tank Farm Complex was reviewed by a team of senior technical personnel whose expertise covered all appropriate aspects of fissile materials chemistry and physics. The team concluded that the detailed and documented nucleonics-related studies underlying the waste tanks criticality safety basis were sound. The team concluded that, under current plutonium inventories and operating conditions, a nuclear criticality accident is incredible in any of the Hanford single-shell tanks (SST), double-shell tanks (DST), or double-contained receiver tanks (DCRTS) on the Hanford Site.
Book Synopsis Nuclear Criticality Safety Review of Hanford High-level Radioactive Waste Tank Farms by : John M. Clark
Download or read book Nuclear Criticality Safety Review of Hanford High-level Radioactive Waste Tank Farms written by John M. Clark and published by . This book was released on 1992 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Review of Nuclear Criticality Safety Requirements Implementation for Hanford Tank Farms Facility by :
Download or read book Review of Nuclear Criticality Safety Requirements Implementation for Hanford Tank Farms Facility written by and published by . This book was released on 2000 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt: In November 1999, the Deputy Secretary of the Department of Energy directed a series of actions to strengthen the Department's ongoing nuclear criticality safety programs. A Review Plan describing lines of inquiry for assessing contractor programs was included. The Office of River Protection completed their assessment of the Tank Farm Contractor program in May 2000. This document supports that assessment by providing a compliance statement for each line of inquiry.
Book Synopsis Nuclear Criticality Project Plan for the Hanford Site Tank Farms by :
Download or read book Nuclear Criticality Project Plan for the Hanford Site Tank Farms written by and published by . This book was released on 1996 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: The mission of this project is to provide a defensible technical basis report in support of the Final Safety Analysis Report (FSAR). This technical basis report will also be used to resolve technical issues associated with the nuclear criticality safety issue. The strategy presented in this project plan includes an integrated programmatic and organizational approach. The scope of this project plan includes the provision of a criticality technical basis supporting document (CTBSD) to support the FSAR as well as for resolution of the nuclear criticality safety issue. Specifically, the CTBSD provides the requisite technical analysis to support the FSAR hazard and accident analysis as well as for the determination of the required FSAR limits and controls. The scope of The CTBSD will provide a baseline for understanding waste partitioning and distribution phenomena and mechanistics for current operational activities inclusive of single-shell tanks, double-shell tanks, double-contained receiver tanks, and miscellaneous underground storage tanks. Although the FSAR does not include future operational activities, the waste partitioning and distribution phenomena and mechanistics work scope identified in this project plan provide a sound technical basis as a point of departure to support independent safety analyses for future activities. The CTBSD also provides the technical basis for resolution of the technical issues associated with the nuclear criticality safety issue. In addition to the CTBSD, additional documentation will be required to fully resolve U.S. Department of Energy-Headquarters administrative and programmatic issues. The strategy and activities defined in this project plan provide a CTBSD for the FSAR and for accelerated resolution of the safety issue in FY 1996. On April 30, 1992, a plant review committee reviewed the Final Safety Analysis Reports for the single-shell, double-shell, and aging waste tanks in light of the conclusions of the inadequate waste characterization with respect to fissile material. The review indicated that the conclusion in the FSARS, that a criticality is not credible, cannot be supported for a full range of potential tank constituents. Therefore, a USQ was declared. Development of a credible scenario leading to a criticality proved to be extremely difficult, given the paucity of data on the quantity and distribution of fissile material in the tanks. The objective of this project plan is to develop a strategy and technical approach to provide a CTBSD for the FSAR and for resolution of the nuclear criticality safety issue pertaining to tank farm waste storage and transfer operations. The strategy and technical approach identified in this project plan include definition of administrative and technical tasks. Technical analyses will include mechanistic studies, historical data review, and additional limited neutronics analysis. Completion of these studies will be documented in a CTBSD to support the existing criticality technical basis. The CTBSD will be incorporated in the criticality portion of the FSAR.
Book Synopsis Resolution of the Nuclear Criticality Safety Issue for the Hanford Site High-level Waste Tanks by :
Download or read book Resolution of the Nuclear Criticality Safety Issue for the Hanford Site High-level Waste Tanks written by and published by . This book was released on 1997 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper describes the approach used to resolve the Nuclear Criticality Safety Issue for the Hanford Site high-level waste tanks. Although operational controls have been in place at the Hanford Site throughout its operating life to minimize the amount of fissile material discarded as waste, estimates of the total amount of plutonium that entered the waste tanks range from 500 to 1,000 kg. Nuclear criticality safety concerns were heightened in 1991 based on a review of waste analysis results and a subsequent U.S. Department of Energy 1399 review of the nuclear criticality program. Although the DOE review team concluded that there was no imminent risk of a criticality at the Hanford Site tank farms, the team also stated its concern regarding the lack of definitive knowledge of the fissile material inventory and distribution within the waste tanks and the lack of sufficient management support for the overall criticality safety program. An in-depth technical review of the nuclear criticality safety of the waste tanks was conducted to develop a defensible technical basis to ensure that waste tanks are subcritical. The review covered all relevant aspects of nuclear criticality safety including neutronics and chemical and physical phenomena of the waste form under aging waste conditions as well as during routine waste management operations. This paper provides a review of the technical basis to support the conclusion that given current plutonium inventories and operating conditions, a nuclear criticality is incredible. The DOE has been requested to close the Nuclear Criticality Safety Issue. The Defense Nuclear Facilities Safety Board is currently reviewing the technicalbasis.
Book Synopsis Nuclear Criticality Safety Requirements Implementation Matrix for Tank Farms by :
Download or read book Nuclear Criticality Safety Requirements Implementation Matrix for Tank Farms written by and published by . This book was released on 2000 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: This document provides a detailed matrix of specific Tank Farms nuclear criticality safety program elements indexed to primary requirements documents. These requirements are collected at a higher level in HNF-SO-MP-SRID-001, ''Tank Waste Remediation System Standards/Requirements Identification Document.'' The intended use of this document is to provide a roadmap for implementing procedures and assessments.
Book Synopsis Tank Waste Remediation System Nuclear Criticality Safety Program Management Review by :
Download or read book Tank Waste Remediation System Nuclear Criticality Safety Program Management Review written by and published by . This book was released on 1999 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt: This document provides the results of an internal management review of the Tank Waste Remediation System (TWRS) criticality safety program, performed in advance of the DOE/RL assessment for closure of the TWRS Nuclear Criticality Safety Issue, March 1994. Resolution of the safety issue was identified as Hanford Federal Facility Agreement and Consent Order (Tri-Party Agreement) Milestone M-40-12, due September 1999.
Book Synopsis Tank Farms Criticality Safety Manual by : C. DeFigh-Price
Download or read book Tank Farms Criticality Safety Manual written by C. DeFigh-Price and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This document provides requirements for the nuclear cr[i]ticality safety program for the Hanford Tank Farms, 242-A Evaporator, and 222-S Laboratory.
Author :United States. Congress. House. Committee on Commerce. Subcommittee on Oversight and Investigations Publisher : ISBN 13 : Total Pages :160 pages Book Rating :4.0/5 ( download)
Book Synopsis Review of the Department of Energy's Hanford Radioactive Tank Waste Privatization Contract by : United States. Congress. House. Committee on Commerce. Subcommittee on Oversight and Investigations
Download or read book Review of the Department of Energy's Hanford Radioactive Tank Waste Privatization Contract written by United States. Congress. House. Committee on Commerce. Subcommittee on Oversight and Investigations and published by . This book was released on 1998 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Radioactive Waste Management written by and published by . This book was released on 1981 with total page 556 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Further Improvement Needed in the Hanford Tank Farm Maintenance Program by : United States Accounting Office (GAO)
Download or read book Further Improvement Needed in the Hanford Tank Farm Maintenance Program written by United States Accounting Office (GAO) and published by Createspace Independent Publishing Platform. This book was released on 2018-05-28 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nuclear Health and Safety: Further Improvement Needed in the Hanford Tank Farm Maintenance Program
Book Synopsis Criticality Parameters for Tank Waste Evaluation by :
Download or read book Criticality Parameters for Tank Waste Evaluation written by and published by . This book was released on 1997 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nuclear criticality parameters were developed as a basis for evaluating criticality safety for waste stored in the high-level waste tank farms on the Hanford Site in Washington State. The plutonium critical concentration and critical mass were calculated using a conservative waste model (CWM). The primary requirement of a CWM is that it have a lower neutron absorption than any actual waste. Graphs are provided of the critical mass as a function of plutonium concentration for spheres and for uniform slab layers in a 22.9-m-diameter tank. Minimum subcritical absorber-to-plutonium mass rates were calculated for waste components selected for their relative abundance and neutron absorption capacity. Comparison of measured absorber-to-plutonium mass ratios in their corresponding subcritical limit mass ratios provides a means of assessing whether criticality is possible for waste of the measured composition. A comparison is made between the plutonium critical concentrations in CWM solids and in a postulated real waste. This comparison shows that the actual critical parameters are likely to be significantly larger than those obtained using the CWM, thus providing confidence that the margin of safety obtained to the criticality safety evaluation is conservative.
Author :United States. Congress. House. Committee on Appropriations. Subcommittee on Energy and Water Development Publisher : ISBN 13 : Total Pages :1578 pages Book Rating :4.0/5 (18 download)
Book Synopsis Energy and Water Development Appropriations for 1996: Department of Energy by : United States. Congress. House. Committee on Appropriations. Subcommittee on Energy and Water Development
Download or read book Energy and Water Development Appropriations for 1996: Department of Energy written by United States. Congress. House. Committee on Appropriations. Subcommittee on Energy and Water Development and published by . This book was released on 1995 with total page 1578 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy Research Abstracts written by and published by . This book was released on 1994-06 with total page 544 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Criticality Safety of Project W-151, 241-AZ-101 Retrieval System Process Test by :
Download or read book Criticality Safety of Project W-151, 241-AZ-101 Retrieval System Process Test written by and published by . This book was released on 1996 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Criticality Safety Evaluation Report (CSER) documents a review of the criticality safety implications of a process test to be performed in tank 241-AZ-101 (101-AZ). The process test will determine the effectiveness of the retrieval system for mobilization of solids and the practicality of the system for future use in the underground storage tanks at Hanford. The scope of the CSER extends only to the testing and operation of the mixer pumps and does not include the transfer of waste from the tank. Justification is provided that a nuclear criticality is extremely unlikely, if not impossible, in this tank.
Author :United States. Congress. House. Committee on Appropriations. Subcommittee on Energy and Water Development Publisher : ISBN 13 : Total Pages :1616 pages Book Rating :4.F/5 ( download)
Book Synopsis Energy and Water Development Appropriations for 1996 by : United States. Congress. House. Committee on Appropriations. Subcommittee on Energy and Water Development
Download or read book Energy and Water Development Appropriations for 1996 written by United States. Congress. House. Committee on Appropriations. Subcommittee on Energy and Water Development and published by . This book was released on 1995 with total page 1616 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Disposal of High Active Nuclear Fuel Waste by : Sweden. Energikommissionen
Download or read book Disposal of High Active Nuclear Fuel Waste written by Sweden. Energikommissionen and published by . This book was released on 1978 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt:
