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Investigation of Nuclide Importance to Functional Requirements Related to Transport and Long-Term Storage of LWR Spent Fuel

Investigation of Nuclide Importance to Functional Requirements Related to Transport and Long-Term Storage of LWR Spent Fuel

Author(s)
Broadhead, B. L. ,
DeHart, M. D. ,
Ryman, J. C. ,
Tang, J. S. ,
Parks, C. V.
Publication Date
The radionuclide characteristics of light-water-reactor (LWR) spent fuel play key roles in the design and licensing activities for radioactive waste transportation systems, interim storage facilities, and the final repository site.
burnup credit spent fuel transport lwr ornl/tm-12742 nuclide used fuel

WHF and RF Thermal Evaluation

WHF and RF Thermal Evaluation

Author(s)
Bechtel SAIC Company, LLC
Publication Date
The purpose of this analysis is to estimate the peak fuel assembly cladding temperature within the transportation casks that will be received in the WHF and RF, and to compare this value with established temperature limits. Thermally limiting scenarios are evaluated for both normal and off-normal operating conditions, with the off-normal condition defined as a loss of active ventilation. A second purpose of this analysis is to identify a specific room in the surface facilities as thermally limiting of all the rooms, with respect to the potentially highest temperatures on the concrete walls.
thermal analysis transportation yucca mountain heat load

Application of Sensitivity/Uncertainty Methods to Burnup Credit Criticality Validation

Application of Sensitivity/Uncertainty Methods to Burnup Credit Criticality Validation

Author(s)
Mueller, D. E. ,
Wagner, J. C.
Publication Date
The responsible use of calculational methods in nuclear criticality safety includes a determination of bias and bias uncertainty that may exist between the calculated results and reality. Such biases exist due to approximations used to model the real world, uncertainties in nuclear data, and approximations associated with the calculational method (e.g., Monte Carlo method). The bias and bias uncertainty are typically determined by using the modeling approximations, nuclear data, and calculational method to model well-known, usually critical, systems.
burnup credit criticality analysis iaea-tecdoc-1547 iaea sensitivity analysis

Research Supporting Implementation of Burnup Credit in the Criticality Safety Assessment of Transport and Storage Casks

Research Supporting Implementation of Burnup Credit in the Criticality Safety Assessment of Transport and Storage Casks

Author(s)
Parks, C. V. ,
Gauld, I. C. ,
Wagner, J. C. ,
Broadhead, B. L. ,
DeHart, M. D. ,
Ebert, D. D.
Publication Date
The Nuclear Regulatory Commission (NRC) Office of Regulatory Research (RES) has initiated a program to support effective implementation of burnup credit in the criticality safety assessment of transport and dry storage casks. The goal is to develop technical bases that can be used to provide criteria and guidance for use in licensing activities. The program is being conducted in a phased approach, with the initial focus on unresolved issues related to the use of actinide-only bumupcredit in transport and dry storage casks designed for spent fuel from pressurized-water reaciors (PWRs).
burnup credit transport cask storage cask criticality safety analysis

SCALE-4 Analysis of Pressurized Water Reactor Critical Configurations: Volume 3-Surry Unit 1 Cycle 2

SCALE-4 Analysis of Pressurized Water Reactor Critical Configurations: Volume 3-Surry Unit 1 Cycle 2

Author(s)
Hermann, O. W. ,
Bowman, S. M.
Publication Date
The requirements of ANSI/ANS 8.1 specify that calculational methods for away-from-reactor criticality safety analyses be validated against experimental measurements. If credit for the negative reactivity of the depleted (or spent) fuel isotopics is desired, it is necessary to benchmark computational methods against spent fuel critical configurations.
burnup credit scale pwr ornl/tm-12294/v3 surry

Screening Analysis of Criticality Features, Events, and Processes for License Application

Screening Analysis of Criticality Features, Events, and Processes for License Application

Author(s)
Sandia National Laboratories
Publication Date
The purpose of this analysis report is to evaluate the features, events, and processes (FEPs) associated with criticality and document the screening decision for either inclusion or exclusion of criticality in the Total System Performance Assessment for License Application (TSPA-LA). The FEPs associated with criticality address scenarios that include initiators of sequences of events or processes that could lead to configurations that have potential for criticality in the repository.
criticality yucca mountain criticality analysis license application nrc storage regulations postclosure

FEDERAL COMMITMENTS REGARDING USED FUEL AND HIGH-LEVEL WASTES

FEDERAL COMMITMENTS REGARDING USED FUEL AND HIGH-LEVEL WASTES

Author(s)
Van Ness Feldman
Publication Date
At the request of the Blue Ribbon Commission Staff,1 Van Ness Feldman examined the following question: What commitments has the Federal Government made to states, communities, private companies, and others related to the disposal of used fuel and high-level wastes? Spent nuclear fuel (referred to herein as “used fuel”) and high-level radioactive waste (“HLW”) are the by-products of commercial nuclear energy generation, defense production of nuclear weapons materials, and research and medical activities that utilize nuclear reactors or fission product nuclides. This paper describes the Federal
transportation high level waste spent fuel government blue ribbon commission legal analysis used fuel responsibility

UNF-STANDARDS presentation to EPRI extended storage collaboration project

UNF-STANDARDS presentation to EPRI extended storage collaboration project

Author(s)
John Scaglione
Publication Date

Understanding the changing nuclear and mechanical characteristics of used nuclear fuel (UNF) over time and how these changing characteristics affect storage, transportation, and disposal options can require many tools and types of data. To streamline analysis capabilities for the waste management system, a comprehensive, integrated data and analysis tool has been assembled—UNF-Storage, Transportation & Disposal Analysis Resource and Data System (UNF-ST&DARDS).

disposal transportation data storage database used nuclear fuel

Preclosure Criticality Analysis Process Report

Preclosure Criticality Analysis Process Report

Author(s)
Bechtel SAIC Company, LLC
Publication Date

The preclosure criticality analysis process described in this technical report provides a systematic approach for determining the need for criticality controls and for evaluating their effectiveness during the preclosure period of the Monitored Geologic Repository at Yucca Mountain, Nevada.

transportation transportation, aging and disposal (tad) yucca mountain criticality analysis monitored geologic repository storage

Technical Evaluation Report on the Content of the U.S. Department of Energy's Yucca Mountain Repository License Application

Technical Evaluation Report on the Content of the U.S. Department of Energy's Yucca Mountain Repository License Application

Author(s)
Nuclear Regulatory Commission
Publication Date

This “Technical Evaluation Report on the Content of the U.S. Department of Energy’s Yucca Mountain License Application; Postclosure Volume: Repository Safety After Permanent Closure” (TER Postclosure Volume) presents information on the NRC staff’s review of DOE’s Safety Analysis Report (SAR), provided on June 3, 2008, as updated by DOE on February 19, 2009. The NRC staff also reviewed information DOE provided in response to NRC staff’s requests for additional information and other information that DOE provided related to the SAR.

yucca mountain license application repository safety nrc

Nuclear Criticality Calculations for the Wet Handling Facility

Nuclear Criticality Calculations for the Wet Handling Facility

Author(s)
Bechtel SAIC Company, LLC
Publication Date

The purpose of this calculation is to apply the process described in the TDR-DS0-NU-000001 Rev. 02, Preclosure Criticality Analysis Process Report (Ref. 2.2.25) to aid in establishing design and operational criteria important to criticality safety and to identify potential control parameters and their limits important to the criticality safety of commercial spent nuclear fuel (CSNF) handling operations in the Wet Handling Facility (WHF)

transportation transportation, aging and disposal (tad) yucca mountain commercial spent nuclear fuel criticality safety storage dpc wet handling

Transportation and Storage Subcommittee Report to the Full Commission DRAFT

Transportation and Storage Subcommittee Report to the Full Commission DRAFT

Author(s)
Blue Ribbon Commission
Publication Date

The main question before the Transportation and Storage Subcommittee was whether the United States
should change its approach to storing and transporting spent nuclear fuel (SNF) and high-level
radioactive waste (HLW) while one or more permanent disposal facilities are established.
To answer this question and to develop specific recommendations and options for consideration by the
full Commission, the Subcommittee held multiple meetings and deliberative sessions, visited several

disposal transportation high level waste spent fuel storage blue ribbon commission used fuel

Isotopic Analysis of High-Burnup PWR Spent Fuel Samples from the Takahama-3 Reactor

Isotopic Analysis of High-Burnup PWR Spent Fuel Samples from the Takahama-3 Reactor

Author(s)
Gauld, I. C. ,
Sanders, C. E.
Publication Date

This report presents the results of computer code benchmark simulations against spent fuel radiochemical assay
measurements from the Kansai Electric Ltd. Takahama-3 reactor published by the Japan Atomic Energy
Research Institute. Takahama-3 is a pressurized-water reactor that operates with a 17 × 17 fuel-assembly design.
Spent fuel samples were obtained from assemblies operated for 2 and 3 cycles and achieved a maximum burnup
of 47 GWd/MTU. Radiochemical analyses were performed on two rods having an initial enrichment of

burnup credit criticality analysis nureg/cr-6798 ornl/tm-2001/259 spent fuel composition

Nuclear Criticality Calculations for Canister-Based Facilities - DOE SNF

Nuclear Criticality Calculations for Canister-Based Facilities - DOE SNF

Author(s)
Bechtel SAIC Company, LLC
Publication Date

The purpose of this calculation is to perform waste-form specific nuclear criticality safety calculations to aid in establishing criticality safety design criteria, and to identify design and process parameters that are potentially important to the criticality safety of Department of Energy (DOE) standardized Spent Nuclear Fuel (SNF) canisters.

transportation yucca mountain criticality safety radiation protection storage canister doe spent nuclear fuel

CSNF Loading Curve Sensitivity Analysis

CSNF Loading Curve Sensitivity Analysis

Author(s)
Sandia National Laboratories
Publication Date

The purpose of this scientific analysis report, CSNF Loading Curve Sensitivity Analysis, is to establish the required minimum burnup as a function of initial enrichment for both pressurized water reactor (PWR) and boiling water reactor (BWR) commercial spent nuclear fuel (CSNF) that would allow permanent disposal of these waste forms in the geologic repository at Yucca Mountain. The relationship between the required minimum burnup and fuel assembly initial enrichment forms a loading curve.

burnup credit transportation, aging and disposal (tad) yucca mountain commercial spent nuclear fuel criticality analysis repository loading curves

Spent Fuel Project Office, Interim Staff Guidance - 8, Revision 1, Burnup Credit in the Criticality Safety Analyses of PWR Spent Fuel in Transport and Storage Casks

Spent Fuel Project Office, Interim Staff Guidance - 8, Revision 1, Burnup Credit in the Criticality Safety Analyses of PWR Spent Fuel in Transport and Storage Casks

Author(s)
Spent Fuel Project Office, NRC

Spent Fuel Project Office, Interim Staff Guidance - 8, Revision 1

burnup credit pwr spent fuel transport cask storage cask criticality safety analysis isg-8 interim staff guidance used fuel
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