PSAM 16 Conference Paper Overview
Welcome to the PSAM 16 Conference paper and speaker overview page.
Lead Author: Dohun Kwon Co-author(s): Gyunyoung Heo gheo@khu.ac.kr
| Development of Operator Response Time Model for DICE(Dynamic Integrated Consequence Evaluation) |
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| DPSA (Dynamic Probabilistic Safety Assessment) which can facilitate the time dependency has been actively underway worldwide. DPSA can provide explicit consideration for dependencies among systems, components caused by plant states, or operator’s actions based on a continuous or discrete-time basis. In Kyung Hee University, DICE (Dynamic Integrated Consequence Evaluation) a dynamic reliability analysis tool using DDET (Discrete Dynamic Event Tree), was developed as a supporting tool for DPSA research. The DDET method is generally used in many DPSA frameworks. The diagnosis module, one of the modules in DICE, monitors plant status and decides the controls of the plant state by commanding components and operator action through a logical combination of physical variables. Particularly the decision by operator response time including omission or commission can greatly affect plant’s dynamics, so the diagnosis module in DICE attempts to try various approaches for operator models. Although an existing HRA (Human Reliability Assessment) works a good job for static PSA by providing HEP (Human Error Probability), the operator model, in DICE, should be able to provide operator response time to be used. There is a need for an operator model that provides operator response time based on the existing HRA method due to verifiable evidence of the model’s credibility meeting the current regulatory requirement. To develop the operator model, it is based on SPAR-H (Standardized Plant Analysis Risk Human Reliability Assessment) that is worldwide uses. To prove the credibility of the operator model with conventional SPAR-H result and the same result for operator model and SPAR-H, verification is conducted through Monte Carlo simulation. By connecting the operator model with DICE, it is possible to see dynamic plant status changes. |
Paper SK274 Preview
Author and Presentation Info
Lead Author Name: Dohun Kwon (skdmlclsrn11@gmail.com)
Bio: Dohun Kwon received a B.S. degree in nuclear engineering, from Kyung Hee University in 2021. He is currently working at Kyung Hee University for a Master's course. His research interests are thermal cycle analysis, safety analysis, and dynamic probabilistic safety assessments(DPSA) as called DPRA. He recently studies thermodynamic safety analysis for nuclear power plants and the decision of operator response time for DPSA.
Country: South Korea
Company: Kyun Hee University
Job Title: Master's Candidate
Bio: Dohun Kwon received a B.S. degree in nuclear engineering, from Kyung Hee University in 2021. He is currently working at Kyung Hee University for a Master's course. His research interests are thermal cycle analysis, safety analysis, and dynamic probabilistic safety assessments(DPSA) as called DPRA. He recently studies thermodynamic safety analysis for nuclear power plants and the decision of operator response time for DPSA.
Country: South Korea
Company: Kyun Hee University
Job Title: Master's Candidate