ML21096A180

Item 1 & 7 IDHEAS Program at the NRC by S. Peters - 2021-04-08 Public Meeting

ML21096A180
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Issue date:	04/08/2021
From:	Sean Peters NRC/RES/DRA/HFRB
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Xing, Jang - 301 415 2410
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The Integrated Human Event Analysis System (IDHEAS) Program Overview Sean E. Peters, Chief Human Factors and Reliability Branch Office of Nuclear Regulatory Research April 8, 2021

Why are we here?

SRM-M061020 The Committee should work with the staff and external stakeholders to evaluate the different Human Reliability models in an effort to propose either a single model for the agency to use or guidance on which model(s) should to be used in specific circumstances.

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Timeline of HRA Development PRA Policy IDHEAS At-Power Evaluation of Statement HRA Methods HRA Cognitive Basis HRA Good vs Good International HRA U.S. Empirical Study Practices Practices Empirical Study 2011 2020 1995 2005 2006 2009-2014 2016 2017 SRM M061020 Fukushima IDHEAS-G Daiichi IDHEAS-ECA FLEX Expert Elicitation FLEX HRA IDHEAS-Data (draft) 3

Timeline References

• PRA Policy Statement (60 FR 42622)

• NUREG-1792 - Good Practices for Implementing [HRA]

(ML051160213)

• NUREG-1842 - Evaluation of [HRA] Methods Against Good Practices (ML063200058)

• NUREG/IA-0216 - International HRA Empirical Study (ML093380283, ML11250A010, ML14358A254)

• NUREG-2127 - The International HRA Empirical Study: Lessons Learned from Comparing HRA Methods Predictions to HAMMLAB Simulator Data (ML14227A197)

• NUREG-2156 - The U.S. HRA Empirical Study (ML16179A124) 4

Timeline References (Cont.)

• NUREG-2114 - Cognitive Basis for [HRA] (ML16014A045)

• NUREG-2199, Vol. 1 - [IDHEAS] for [NPP] Internal Events At-Power Application (ML17073A041)

• NUREG-2198 - IDHEAS - General Methodology (ML20329A428)

• RIL 2020-02, Integrated Human Event Analysis System for Event and Condition Assessment (IDHEAS-ECA) (ML20016A481)

• RIL 2020 Vols. 1 and 2 - Applying HRA to FLEX Operations -

Expert elicitation and Using IDHEAS-ECA - (ML21033A529, ML20345A318, ML21032A119) 5

IDHEAS Development Process

• US and International Benchmarking Projects -

determined existing methods strengths and weaknesses

• Cognitive Basis Report

- Extensive Literature Review, Scientific Basis for Structure

• IDHEAS at-Power

- Industry/NRC Collaboration - goal of reducing variability

• Fukushima Event - March 2011 6

Development Process (cont.)

• IDHEAS-G

- Guidance for developing application-specific HRA methods or tools

- Framework to generalize and integrate human error data

- Structure to analyze human events and identify human failures and root causes

• IDHEAS-ECA

- Built from IDHEAS-G to handle all NRC applications

- Can be used for in/ex control room activities and other nuclear/non-nuclear domains (human centered method)

- Quantification model and software tool included 7

Development Process (cont.)

• IDHEAS-Data

- Data basis for IDHEAS quantification

- Constantly evolving and tied to NRC data collection activities

• Scenario Authoring, Characterization, and Debriefing Application - SACADA

• NRCs Human Performance Test Facility

• Halden Reactor Project 8

IDHEAS Reviews

• IDHEAS-G

- Multiple ACRS Subcommittee reviews

- 3 external peer reviews, 2 internal peer reviews

- Used on: Fukushima, US Benchmarking Events, Fuel Cycle Facility Events

• IDHEAS-ECA

- Used on FLEX Scenarios (NRC and industry studies), ASP and SDP Events

- Currently taking user comments to incorporate into revised report/tool

• IDHEAS-DATA

- Data review (underway)

- Plans for regular updates 9

Future of the Integrated Human Event Analysis System (IDHEAS)

Program Sean E. Peters, Chief Human Factors and Reliability Branch Office of Nuclear Regulatory Research April 8, 2021

IDHEAS Future Work

• IDHEAS-G - Publication

• IDHEAS-ECA - Refinement/Rollout

- Dependency

- Integrate with SAPHIRE/SPAR Models

- Publication of revision

- Validation vs standards

• IDHEAS-DATA

- Completion/Publication

- Revision 11

Other HRA Work

• Minimum joint human error probabilities

• Data!

• Wish List

- Errors of commission

- Data for Org Factors

- Security (Physical and Cyber) 12

Path Forward

• Complete/Practical HRA Method

• Improvement to the current state of practice at the NRC

• Human-centered, scientific and data-based

• Program for periodic updates based on user feedback and data

• Can be applied to all NRC applications

• Closure of SRM-M061020 13

Contacts Human Factors and Reliability Branch, Division of Risk Analysis Office of Nuclear Regulatory Research US Nuclear Regulatory Commission IDHEAS program and collaboration - Sean Peters, Sean.Peters@nrc.gov Technical questions /feedback on IDHEAS - Jing Xing, Jing.Xing@nrc.gov Getting IDHEAS-ECA Software - James Chang, James.Chang@nrc.gov SACADA Program - James Chang, James.Chang@nrc.gov 14

QUESTIONS/DISCUSSION 15