In order to ensure that the PRA modeling reflects the as-built, as-operated plant, EPM engineers are also available to validate the models by means of plant walkdowns, records reviews and by interviews with systems engineers and Operations personnel. Environmental Protection Agency and publication of the Guiding Principles for Monte-Carlo Analysis. Success criteria and HRA timing is typically performed using the MAAP severe accident analysis code, for which EPM has wide-ranging thermal-hydraulics modeling experience. Probabilistic Risk Assessment (PRA) began playing an increasingly important role in Agency risk assessments following the 1997 release of EPAs Policy for Use of Probabilistic Analysis in Risk Assessment at the U.S. We have in-house expertise with modeling in WinNUPRA, CAFTA and SAPHIRE and in performing human reliability analysis using the EPRI HRA Calculator. What is a PRA Risk assessments include identification and analysis of. Probabilistic Risk Assessment Procedures Guide for NASA Managers and Practitioners NASA Project Managers: Michael Stamatelatos, Ph.D., and Homayoon Dezfuli, Ph.D.

For internal events PRA model development, our engineers have expertise in the areas of initiating events identification and quantification, accident sequence analysis, success criteria determination, systems modeling, data analysis and human reliability analysis using state-of-the-art technology. EPM has hundreds of person-years of operating nuclear power plant experience, and much of that experience has been directly involved with the Probabilistic Risk Assessment of operating nuclear plants. Probabilistic methods in the general probabilistic risk assessment (PRA) framework are at the core of integrated risk-based engineering and risk-based decisions.

Probabilistic risk