Nuclear Engineering and Technology

Korean Nuclear Society (한국원자력학회)
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HUMAN ERRORS DURING THE SIMULATIONS OF AN SGTR SCENARIO: APPLICATION OF THE HERA SYSTEM

  • Jung, Won-Dea (Integrated Safety Assessment Department, Korea Atomic Energy Research Institute) ;
  • Whaley, April M. (Nuclear Safety and Regulatory Research, Idaho National Laboratories) ;
  • Hallbert, Bruce P. (Nuclear Safety and Regulatory Research, Idaho National Laboratories)
  • Published : 2009.12.31
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Abstract

Due to the need of data for a Human Reliability Analysis (HRA), a number of data collection efforts have been undertaken in several different organizations. As a part of this effort, a human error analysis that focused on a set of simulator records on a Steam Generator Tube Rupture (SGTR) scenario was performed by using the Human Event Repository and Analysis (HERA) system. This paper summarizes the process and results of the HERA analysis, including discussions about the usability of the HERA system for a human error analysis of simulator data. Five simulated records of an SGTR scenario were analyzed with the HERA analysis process in order to scrutinize the causes and mechanisms of the human related events. From this study, the authors confirmed that the HERA was a serviceable system that can analyze human performance qualitatively from simulator data. It was possible to identify the human related events in the simulator data that affected the system safety not only negatively but also positively. It was also possible to scrutinize the Performance Shaping Factors (PSFs) and the relevant contributory factors with regard to each identified human event.

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References

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