ML24151A635
| ML24151A635 | |
| Person / Time | |
|---|---|
| Issue date: | 06/07/2024 |
| From: | Christian Araguas NRC/RES/DRA/HFRB |
| To: | Mike Franovich NRC/NRR/DRA |
| Shared Package | |
| ML24151A633 | List: |
| References | |
| Download: ML24151A635 (1) | |
Text
UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 MEMORANDUM TO:
Michael X. Franovich, Director Division of Risk Assessment Office of Nuclear Reactor Regulation FROM:
Christian Araguas, Director Division of Risk Analysis Office of Nuclear Regulatory Research
SUBJECT:
RESEARCH INFORMATION LETTER (RIL) 2024-05, SIMULATOR DATA ANALYSIS TO INFORM DIGITALIZED ENVIRONMENT IMPACTS ON HUMAN RELIABILITY Enclosed for your information and use is Research Information Letter (RIL) 2024-05, Simulator Data Analysis to Inform Digitalized Environment Impacts on Human Reliability. This report fulfills the request of Research Assistance Request (RAR) NRR-2023-024 Collect Human Reliability Data in a Digital Instrumentation and Control Environment (ML23166A177).
The RAR requests collecting operator reliability data in digital environments, specifically relating to digital main control rooms (MCRs), computerized procedures, and automation. Idaho National Laboratory (INL) was contracted to fulfill this RAR request. INL analyzed human reliability data from two types of nuclear power plant (NPP) simulators: full-scope, full-scale simulators and desktop simulators. The full-scope, full-scale simulator data was from Korean NPPs licensed operator simulator training, including OPR100, WH900, and APR1400. The first two NPPs have analogue MCRs and the last NPPs MCR is fully digitalized. The Korea Atomic Energy Research Institute (KAREI) collected the data in two periods (2008-2011 and 2017-2019). The data includes 223 simulation runs in analog MCRs and 165 in the digital MCR. The desktop simulator data includes performance of licensed operators and college students interacting with simplified digital control panels.
This report presents quantitative and qualitative human reliability information. The quantitative information, especially the data from the full-scope, full-scale simulators, can be directly used to strengthen the Integrated Human Event Analysis System for Event and Conditional Assessments (IDHEAS-ECA) data basis. Examples are human reliability of different types of cognitive activities in digital MCRs (Table 7 of the report) and error recoveries in analogue and digital MCRs (Tables 10). The qualitative information from desktop simulators could inform future research activities on operator reliability in digital environments, including narratives of the errors occurring when interacting with a simplified autonomous system (section 4),
commission errors and omission errors (Appendix A), and error recoveries (Appendix B).
CONTACT:
Y. James Chang, RES/DRA/HFRB 301-415-2378, James.Chang @nrc.gov June 7, 2024 Signed by Araguas, Christian on 06/07/24
M. Franovich 2
The staff intends to move forward with posting this document on the NRCs RIL public website 14 days after the date of this memo.
Please notify the responsible staff contact if you have any questions concerning the impending publication of this report.
Enclosure:
ML24151A633; Memo ML24151A635 OFFICE RES/DRA/HFRB RES/DRA/HFRB NRR/DRA/APOB RES/DRA NAME YHsien SPeters AZoulis CAraguas DATE May 31, 2024 Jun 3, 2024 May 31, 2024 Jun 7, 2024