ML23060A011
| ML23060A011 | |
| Person / Time | |
|---|---|
| Site: | 99902049 |
| Issue date: | 03/08/2023 |
| From: | Holtec, SMR |
| To: | Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML23059A451 | List: |
| References | |
| I60-USNRC-037 | |
| Download: ML23060A011 (1) | |
Text
NRC Meeting:
Simulator Certification and Human Factor Engineering HOLTEC INTERNATIONAL Date: 8 March 2023 Presented By: Michael Protesto SMR, LLC, A Holtec International Company Krishna P. Singh Technology Campus One Holtec Boulevard Camden, NJ 08104, USA
[Not Export Controlled]
Meeting Agenda
Introductions
Purpose & Outcome Overview of SMR-160 Simulator Development Steps Discussion of Simulator Certification Regulatory Process and Staffing Discussion of Regulation intended updates Discussion on HFE OER Fidelity Open Forum holtec.com I smrllc.com I Page 2 HOLTE C INT[KN A T I ONAL
Introductions
NRC Staff Ho ltec Staff o ec.com smr c.com I Page 3 HOLTEC 1,-.l [ R NAT I O t\\ L
Purpose and Outcome PURPOSE HOLTEC I N.I [!<
AT I ON L
To provide a high-level overview of the SMR-160 simulator development plan and to discuss important Human Factor Engineering (HFE) milestones OUTCOME To obtain feedback from the NRC staff on the development plan and eventual certification of the SMR-160 simulator for operator training holtec.com I smrllc.com I Page 4
Overview of SMR-160 Simulator Plant Model incorporating the following high-fidelity computer codes HOL TEC I NT[R A TIO N,\\L
- SIMULATE3-Real Time (S3R) models the neutronic behavior of the reactor core. S3R uses the same physics methods found in SIMULATE, the modeling tool used by core design engineers, but runs in real-time.
- RELAP5-3D is used to model the thermal hydraulic behavior of the RCS and ESFs, including the RPV and primary and secondary side of the Steam Generator.
- MELCOR may be used to simulate severe accident behavior on the full-scope simulator.
- WSC 3KeyMaster code suite is used to model the remaining plant syste~s.
Integration of MELTAC Emulator for digital control system mimics major l&C systems and Human System Interface (HSI) design Development includes three main stages Engineering Simulator (ES)
Desktop Scale Simulator (DSS)
Full Scale Simulator (FSS) holtec.com I smrllc.com I Page 5
Overview of SMR-160 Simulator (Continued)
Engineering Simulator Engineering tool for plant design and development Primary purpose is to analyze and evaluate integrated plant response HOLTEC I N T[R NA TI ONAL Secondary purposes are to integrate and test MELTAC emulator interface with the simulator Plant Model and to begin HFE evaluations Desktop Scale Simulator Real time simulation using HSI screens that will mimic the Main Control Room design layout to continue ongoing development and HFE work Perform transient testing and initial scenario-based testing Full Scale Simulator Simulator room that replicates the Main Control Room layout design with associated hardware.
Perform Verification and Validation of HFE process Continue Full Scale Simulator to incorporate full instructor station to certify as a Plant-Referenced Simulator for Operator Training and Licensing holtec.com I smrllc.com I Page 6
Plant-Referenced Simulator HOLTEC I N I [ I< N A T I O
,\\ L From 10 CFR 55.4, "Plant-referenced simulator means a simulator modeling the systems of the reference plant with which the operator interfaces in the control room, including operating consoles, and which permits use of the reference plant's procedures." And Reference plant means "the specific nuclear power plant from which a simulation facility's control room configuration, system control arrangement, and design data are derived."
From NRC Inspection Procedure 41502:
01.04 To verify that a simulator facility for a "new reactor" has sufficient fidelity to be designated a 'plant reference simulator' and conforms to objectives 1.01 through 1.03 above. (A 'new reactor' for the purposes of this procedure means as a reactor plant under construction with no core operating history.)
Question: What specific tests or validations are required to achieve a "Plant Referenced Simulator" given that our simulator will only have plant design analysis for reference?
holtec.com I smrllc.com I Page 7
Simulator Certification Fidelity HOL T EC INT[KN A TION A L The simulator will be validated through analysis of normal and abnormal operations, malfunctions and surveillance testing based on requirements set forth in ANSI/ANS-3.5-2018. The package provided for simulator certification will also include the records mentioned in Section 5 and Appendix A of ANSI/ANS-3.5-2018.
Question: What is the expectation for confirming validation testing, specifically in regard to coding used, system design, and information gathered?
holtec.com I smrllc.com I Page 8
Certification Process HOLTEC I N T ERNAT I ONAL From ANSI/ANS-3.5-2018, "A configuration management program shall be established to provide a means for demonstrating compliance with Sec. 3, "General requirements." The program shall be established to document the adequacy of the design and performance of the simulator at the time the simulator is approved for use in operator training and examination."
Holtec intends to set development completion at the time the company will submit for NRC certification. After which time the Holtec configuration management control process will be implemented and tracked to account for any discrepancies of the V&V.
Question: At what point during development is it acceptable to call complete to being deficiency tracking database and official configuration management control process?
holtec.com I smrllc.com I Page 9
Certification Qualification Holtec intends to set requirements based on background experience as stated in HPP-160-1014 to perform work associated with HFE V&V and simulator certification.
Question: Are additional qualification, such as an SMR-160 Operator Certification obtained from an approved training program, required to perform validation of the Simulator for its certification?
holtec.com I smrllc.com I Page 10
Simulator Issue Resolution Process From NRC Inspection Procedure 41502
( e) New reactor inspections should evaluate the areas listed above as well as verify that discrepancies in the Issue Resolution Verification portion of the IT AAC are assessed per the configuration management control process and entered in the licensee's simulator corrective action program. The results from verification and integrated validation activities performed in accordance with the Design Certification and documented is the Licensee's IT AAC closure letter(s) may be cited as the bases for satisfactorily addressing applicable 10 CFR 55.46 requirements.
HOLTEC I NTERNATIONAL Question: How will the process of Issue Resolution Verification be performed for Part SO application?
holtec.com I smrllc.com I Page 11
Regulation Update HOLTEC INTERN A TIO NA L Regulations were presented to be under revision to include verbiage of new construction plants, including 10 CFR 55.45 and 10 CFR 55.46.
Question: Are there any updates to the regulation changes?
holtec.com I smrllc.com I Page 12
Operating Experience Review HOL T EC IN l [RN AT I ONAL Operating Experience Review will be reviewed and documented in accordance with HPP-160-1014.
Question: What extent of research entails sufficient investigation? What level of detail is required to capture for OER RSR? Holtec intends to capture relates OER items in the OER RSR which will be assigned a tracker within the HFE Issue Tracking System (HITS).
holtec.com I smrllc.com I Page 13
Open Forum o ec.com smr c.com I Page 14 HOLTEC I, TERN A T I ONt\\L
Backup Slides o ec.com smr c.com I Page 15 HOLTEC I N I E R NA TI ON,\\ L
Path of Commission-Approved Simulator HOLTEC INT[K NAT I ON L
From ML1670A301, "SNC requested that the Commission approve the simulation facility for VEGP 3 & 4, in its current configuration, as a Commission-approved simulation facility to be used to conduct operator licensing examinations until the simulators are accepted as plant-referenced simulators.... [since] actual control room console and operating station designs are incomplete. However, a proposed control room console and operating station design has been established and tested in the integrated system validation (ISV) test."
Question: "Can you help describe how and why SNC chose to pursue the Commission-approved simulator path and how do we as an applicant avoid that path."
holtec.com I smrllc.com I Page 16
Certification Qualification
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holtec.com I smrllc.com I Page 17 HOLTEC I NT[R A T I ON A L
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Simulator Development Timeline
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holtec.com I smrllc.com I Page 18
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