MELCOR

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First-Ever Asian MELCOR User Group Meeting

The first-ever Asian MELCOR User Group Meeting was held in Daejeon, South Korea, from October 13–17. MELCOR is a fully integrated, engineering-level computer code whose primary purpose is to model severe-accident progression in light-water-reactor (LWR) nuclear power plants. Sandia developed MELCOR for the US Nuclear Regulatory Commission (NRC)—to treat a broad spectrum of phenomena in both [...]

By | January 9th, 2015|Computational Modeling & Simulation, Energy, News, News & Events, Nuclear Energy, Systems Analysis|Comments Off on First-Ever Asian MELCOR User Group Meeting

Paper Describing Lessons Learned from Fukushima Receives “Outstanding Paper Award”

Aerial view of the Fukushima plant area in 1975, showing separation between Units 5 & 6 and the majority of the complex. (National Land Image Information color aerial photographs, Ministry of Land, Infrastructure, Transport, and Tourism.) Jeff Cardoni (in the Severe Accident Analysis Dept.) presented the paper “MELCOR Simulations of the Severe Accident [...]

By | May 17th, 2013|Computational Modeling & Simulation, Energy, News, News & Events, Nuclear Energy, Systems Analysis|Comments Off on Paper Describing Lessons Learned from Fukushima Receives “Outstanding Paper Award”

Cyber-Based Vulnerability Assessments

Digital Instrument and Control (I&C) is an integral part of the nuclear power industry in the United States. I&C systems monitor the safe, reliable and secure generation and delivery of electricity and could have potential cyber vulnerabilities. At Sandia National Laboratories, cyber-based vulnerability assessments are conducted on multiple I&C platforms deployed in the nuclear industry [...]

By | August 21st, 2012|Comments Off on Cyber-Based Vulnerability Assessments

Severe Accident Modeling

Supporting nuclear energy efforts by developing risk margins, creating risk assessments, sequencing nuclear reactor accident progression, and performing reactor consequence modeling. Severe Accident Modeling Fact Sheet MELCOR Fact Sheet MACCS Fact Sheet

By | August 21st, 2012|Comments Off on Severe Accident Modeling

Probabilistic Risk Assessment

Evaluating the risk associated with operating a facility by evaluating the frequency of accident sequences and the consequences of potential accidents. Probabilistic Risk Assessment Fact Sheet Bayesian Networks: Decision Support for Complex Systems

By | August 21st, 2012|Comments Off on Probabilistic Risk Assessment

Human Reliability Assessment

Identifying potential human errors and systematically estimating the probability of those errors occurring as a step toward estimating a system’s total risk.

By | August 21st, 2012|Comments Off on Human Reliability Assessment

Fire Science

Investigating the effects of fire on a variety of nuclear energy applications and components including cables and electric circuits, shipping casks, spent fuel assembly, and liquid sodium. Fire Science fact sheet

By | August 21st, 2012|Comments Off on Fire Science

Transportation Safety

Developing and applying technology to assure the safe transportation of radioactive and hazardous materials. Transportation Safety Fact Sheet RADTRAN Fact Sheet

By | August 21st, 2012|Comments Off on Transportation Safety

Uncertainty Analysis

Assessing the uncertainty present in any complex problem is an essential part of its analysis and is many times required by major US and international regulatory agencies. Uncertainty Analysis Fact Sheet

By | August 21st, 2012|Comments Off on Uncertainty Analysis

Risk and Safety Assessment

Risk and Safety Assessments are used in many applications to help people understand the consequences from a set of actions and the probability they will occur. Policy and decision makers rely on techniques like these to inform their processes, including when outcomes are uncertain. At Sandia National Laboratories, we have world class leaders in risk [...]

By | March 7th, 2012|Comments Off on Risk and Safety Assessment