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Assessment of Adequacy and Completeness of Standards Endorsed by Regulatory Guides to Molten Salt Reactors Open
The benefits of using voluntary consensus standards and industry guidance documents and reports are evident in the design and licensing of the current generation of nuclear power plants. The use of voluntary consensus standards and industr…
Criteria for Determining the Safety of Wireless Technologies at Nuclear Power Plants Open
This report provides an initial discussion of the potential impact to safety-related/important-to-safety (SR/ITS) systems by the possible expanded use of wireless technologies. One aspect of this discussion is focused on a review of Regula…
Investigating Benefits and Challenges of Converting Retiring Coal Plants into Nuclear Plants Open
A coal-to-nuclear (C2N) transition means siting a nuclear reactor at the site of a recently retired coal power plant. Three overarching questions from the C2N transition guide this research: where in the United States are retired coal faci…
Integrating the Safety Evaluation for a Molten Salt Reactor Operation and Fuel Cycle Facility Application Open
Molten salt reactor (MSR) sites may include additional elements of the nuclear fuel cycle beyond those of the existing fleet. In the existing fleet, the individual elements of the fuel cycle typically have been located on different sites a…
Mid-Year Progress Update on ORNL Support for Developing the Guidance for Microreactor Manufacturing Licenses Open
Factory fueling and assembly, multi-site operation, and the associated transportation of advanced nuclear systems present both new opportunities and challenges for microreactor deployment. These areas have not been demonstrated under Nucle…
TVA Coal-Fired Plant Potential for Advanced Reactor Siting Open
This report summarizes the application of the OR-SAGE tool to the potential backfit of a small modular reactor (SMR) or an advanced non–light-water reactor (non-LWR) at a current or former TVA coal plant site to serve as an example in supp…
National Demonstration Reactor Siting Study—Phase I (Revision 1) Open
In 2020, the Department of Energy Office of Nuclear Energy (DOE-NE) initiated the Advanced Reactor Demonstration Program (ARDP), with the goal of demonstrating two advanced reactor designs within the next five to seven years. When evaluati…
Extended Enrichment Accident Tolerant LWR Fuel Isotopic and Lattice Parameter Trends Open
Commercial light water reactor (LWR) operators and fuel vendors in the United States (US) are pursuing changes to the reactor fuel that include increased enrichment and accident-tolerant fuel (ATF) designs. Enrichments under consideration …
Integrated Energy System Investigation for the Eastman Chemical Company, Kingsport, Tennessee Facility Open
The industrial manufacturing industry is looking to implement new methods of energy production to ensure a consistent energy supply while reducing economic costs and environmental impacts. Much of the manufacturing industry relies on fossi…
Integrated Energy System Investigation for the Eastman Chemical Company, Kingsport, TN Facility Open
The industrial manufacturing industry is looking to implement new methods of energy production to ensure a consistent energy supply while reducing economic costs and environmental impacts. Much of the manufacturing industry relies on fossi…
Proposed guidance for preparing and reviewing a molten salt non-power production or utilization facility application Open
Development of non-power molten salt reactors (MSRs) are under consideration to further establish an MSR experience base, support the requirements of Title 10 of the Code of Federal Regulations (10 CFR) Section 50.43(e), and provide any ad…
Advanced Reactor Siting Policy Considerations Open
This report describes considerations for and challenges to revising the US Nuclear Regulatory Commission (NRC) guidance regarding population for siting an advanced reactor. Current regulations in 10 Code of Federal Regulations (CFR) Part 1…
Licensing Challenges Associated with Autonomous Control Open
Very small special purpose reactors (SPRs), or microreactors at less than 50 MW electric, are under consideration by various entities for applications in remote installations and communities. These entities include remote municipalities, t…
Regulatory Gap Analysis of Select NUREG-0800 Chapters for Applicability to Molten Salt Reactors Open
The past licensing approach for advanced reactors was based on adapting the current LWR-based NRC process that exists today to the advanced reactor concept. This is the approach used by advanced technologies such as the Pebble Bed Reactor …
A survey of additive manufacturing capabilities Open
A previous ORNL report [1] focused on early AM material considerations for reactor technologies and provided some initial licensing considerations. The current report is a complement to the previous report, providing a survey of AM capabil…
A safety and licensing roadmap to identify the research and development gaps of commercial molten salt reactors Open
Molten salt reactors (MSRs) both inherently and through good design possess highly desirable safety attributes. Successful commercial deployment of MSRs is heavily dependent on establishing their safety characteristics in a well-coordinate…
A survey of materials for additive manufacturing Open
Very small special purpose reactors (SPRs) are under consideration by various entities for remote installations and communities. This type of plug-and-go resource requires inherently positive safety attributes and sound design. Such reacto…
Proposed Guidance for Preparing and Reviewing Molten Salt Nonpower Reactor Licence Applications (NUREG-1537) Open
Development of non-power molten salt reactor (MSR) test facilities is under consideration to support the analyses needed for development of a full-scale MSR. These non-power MSR test facilities will require review by the US Nuclear Regulat…
Assessment of Applicability of Standards Endorsed by Regulatory Guides to Sodium Fast Reactors Open
The benefits of the use of voluntary consensus standards and industry standards is evident in the design and licensing of the current generation of nuclear power plants. The use of voluntary consensus standards and industry standards would…
Oak Ridge National Laboratory Support of Non-light Water Reactor Technologies: Capabilities Assessment for NRC Near-term Implementation Action Plans for Non-light Water Reactors Open
The Oak Ridge National Laboratory (ORNL) has a rich history of support for light water reactor (LWR) and non-LWR technologies. The ORNL history involves operation of 13 reactors at ORNL including the graphite reactor dating back to World W…
View article: Proposed Advanced Reactor Adaptation of the Standard Review Plan NUREG-0800 Chapter 4 (Reactor) for Sodium-Cooled Fast Reactors and Modular High-Temperature Gas-Cooled Reactors
Proposed Advanced Reactor Adaptation of the Standard Review Plan NUREG-0800 Chapter 4 (Reactor) for Sodium-Cooled Fast Reactors and Modular High-Temperature Gas-Cooled Reactors Open
This report proposes adaptation of the previous regulatory gap analysis in Chapter 4 (Reactor) of NUREG 0800, Standard Review Plan (SRP) for the Review of Safety Analysis Reports for Nuclear Power Plants: LWR [Light Water Reactor] Edition.…
View article: Proposed Adaptation of the Standard Review Plan NUREG-0800, Chapter 4 (Reactor) for Sodium-Cooled Fast Reactors and Modular High-Temperature Gas-Cooled Reactors
Proposed Adaptation of the Standard Review Plan NUREG-0800, Chapter 4 (Reactor) for Sodium-Cooled Fast Reactors and Modular High-Temperature Gas-Cooled Reactors Open
This report provides a proposed adaptation of a previous regulatory gap analysis of Chapter 4 (Reactor) of NUREG-0800 , Standard Review Plan (SRP) for the Review of Safety Analysis Reports for Nuclear Power Plants: LWR [Light Water Reactor…
Supervisory Control System for Multi-Modular Advanced Reactors Open
The proposed supervisory control system (SCS) may provide considerable benefits to advanced small modular reactors, including reduced plant staffing, optimized maintenance activities, greater plant availability, and higher operating effici…
Integrated Risk-Informed Decision-Making for an ALMR PRISM Open
Decision-making is the process of identifying decision alternatives, assessing those alternatives based on predefined metrics, selecting an alternative (i.e., making a decision), and then implementing that alternative. The generation of de…