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LLC Submittal of Presentation Material Entitled ACRS Subcommittee Meeting (Open Session) Chapters 2, 10, 11, 13, and 17, PM-157982, Revision 1
	ML24075A323
Person / Time
Site:	05200050
Issue date:	03/15/2024
From:	Griffith T; NuScale
To:	; Office of Nuclear Reactor Regulation, Document Control Desk
References
	LO-162565
	Download: ML24075A323 (1)
	v • d • e

LO-162565 NuScale Power, LLC 1100 NE Circle Blvd., Suite 200 Corvallis, Oregon 97330 Office 541.360.0500 Fax 541.207.3928 www.nuscalepower.com March 15, 2024 Docket No. 052-050 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk One White Flint North 11555 Rockville Pike Rockville, MD 20852-2738

SUBJECT:

NuScale Power, LLC Submittal of Presentation Material Entitled ACRS Subcommittee Meeting (Open Session) Chapters 2, 10, 11, 13, and 17, PM-157982, Revision 1 The purpose of this submittal is to provide revised presentation materials for use during the upcoming Advisory Committee on Reactor Safeguards (ACRS) NuScale Subcommittee Meeting on March 19, 2024. The materials support NuScales presentation of the subject chapters of the US460 Standard Design Approval Application. This letter, LO-162565 and enclosure, supersedes letter LO-158049, dated March 14, 2024.

The enclosure to this letter is the nonproprietary presentation entitled ACRS Subcommittee Meeting (Open Session) Chapters 2, 10, 11, 13, and 17, PM-157982, Revision 1.

This letter makes no regulatory commitments and no revisions to any existing regulatory commitments.

If you have any questions, please contact Jim Osborn at 541-360-0693 or at josborn@nuscalepower.com.

Sincerely, Thomas Griffith Manager, Licensing NuScale Power, LLC Distribution:

Mahmoud Jardaneh, NRC Getachew Tesfaye, NRC Michael Snodderly, NRC : ACRS Subcommittee Meeting (Open Session) Chapters 2, 10, 11, 13, and 17, PM-157982, Revision 1

LO-162565 NuScale Power, LLC 1100 NE Circle Blvd., Suite 200 Corvallis, Oregon 97330 Office 541.360.0500 Fax 541.207.3928 www.nuscalepower.com ACRS Subcommittee Meeting (Open Session) Chapters 2, 10, 11, 13, and 17, PM-157982, Revision 1

NuScale Nonproprietary Template #: 0000-21727-F01 R10 ACRS Subcommittee Meeting (Open Session) 3/19/2024 Chapters 2, 10, 11, 13, and 17

NuScale Nonproprietary Template #: 0000-21727-F01 R10 Acknowledgement and Disclaimer This material is based upon work supported by the Department of Energy under Award Number DE-NE0008928.

This presentation was prepared as an account of work sponsored by an agency of the United States (U.S.)

Government. Neither the U.S. Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the U.S. Government or any agency thereof. The views and opinions of authors expressed herein do not necessarily state or reflect those of the U.S. Government or any agency thereof.

NuScale Nonproprietary Template #: 0000-21727-F01 R10 Chapter 10 3/19/2024 Presenters:

Tyler Beck and Mara Swanson Steam and Power Conversion System

NuScale Nonproprietary Template #: 0000-21727-F01 R10 Chapter 10 - Steam and Power Conversion System

Section 10.1 - Summary Description

Section 10.2 - Turbine Generator

Section 10.3 - Main Steam System

Section 10.4 - Other Features of Steam and Power Conversion System

NuScale Nonproprietary Template #: 0000-21727-F01 R10 Introduction

Chapter 10 Overview o Section 10.1 - Summary Description (No slide included)

RAI 10.1-1 and Audit Items

ACCS Summary

Radiation Protection and DBE Mitigation Features

NuScale Nonproprietary Template #: 0000-21727-F01 R10 Section 10.2 - Turbine Generator

TGS - includes turbine, turbine gland seal, turbine lube oil, turbine control oil, generator, and generator air coolers o Main steam feeds turbine through the turbine control valve and stop valve o TGS provides extraction steam to FW heaters o TGS provides gland sealing steam - described in Section 10.4 o TGS includes the turbine bypass system comprised of desuperheater and turbine bypass valve

System is SC-III

Generally Quality Group D, with limited exceptions in Table 10.2-2

No safety-related or risk-significant SSC

No major design changes from DCA

NuScale Nonproprietary Template #: 0000-21727-F01 R10 Section 10.3 - Main Steam System

MSS includes piping immediately downstream of the MSIVs up to the TG skid o Includes nonsafety-related secondary MSIVs (and associated bypass valves) o Includes nonsafety-related MSSVs

MSS is generally Quality Group D and SC-III o Limited exceptions identified in Table 10.3-4 o Secondary MSIVs (and associated bypass valves) are SC-I

No safety-related or risk-significant SSC

Secondary MSIVs - included in TSs

Design changes from DCA:

o Main steam of operating module is preferred auxiliary steam source for startup module o Extraction steam lines are now part of the TGS

NuScale Nonproprietary Template #: 0000-21727-F01 R10 Section 10.4 - Other Features of Steam and Power Conversion System ACCS serves as the main condenser o ACCS condenses steam and provides adequate capacity for the FWS o ACCS includes capability for 100% load rejection o Not credited for DBE o Eliminated need for circulating water system FWS supplies feedwater with necessary flow, temperature, and pressure to the SGs o No substantial change from DCA TGSS provides gland seal steam to prevent leakage into/out of TGS ABS supplies steam to auxiliary steam users when main steam is not available o DCA: low pressure and high pressure subsystems High pressure for module heatup system heat exchangers Low pressure for gland seal steam, deaerator, condensate polishing regeneration system o SDAA: auxiliary boiler and chemical skid subsystems Serves as the low pressure system of the previous ABS when no module is available SSC in above systems are generally Quality Group D, SC-III o Limited exceptions identified in Table 10.4-4 o FWRVs and FCVs are SC-I No safety-related or risk-significant SSC

NuScale Nonproprietary Template #: 0000-21727-F01 R10 RAI 10.1-1 and Audit Items

RAI 10.1-1:

o NuScale revised RAI 10.1-1 and provided the nominal heat balance case in FSAR Section 10.1.

21 audit items successfully resolved o Only unresolved audit item was the heat balance request

NuScale Nonproprietary Template #: 0000-21727-F01 R10 ACCS Summary

Air-cooled condensers were selected to allow for the licensee to place the US460 standard plant design in locations where water access is limited.

o Eliminated the circulating water system

Principal functions remain consistent with water-cooled condensers o Condense exhaust steam from turbine exhaust o Reduce dissolved oxygen level in feedwater o Maintain ACC vacuum condition by removing air and noncondensibles from the main condenser o Provide adequate capacity for condensate and feedwater system during normal operation

NuScale Nonproprietary Template #: 0000-21727-F01 R10 Radiation Protection and DBE Mitigation Features

Effluent and process radiation monitoring is functionally similar to the DCA o Radiation monitors allow automatic system isolations and detection of primary-to-secondary leakage.

Nonsafety-related equipment is credited for event mitigation by functioning as backup protection o This is unchanged from the DCA (e.g., secondary MSIVs).

MPS Interfaces:

o MPS actuation signals and PAM variables for steam and power conversion systems are unchanged from the DCA.

NuScale Nonproprietary Template #: 0000-21727-F01 R10 Acronyms ABS Auxiliary Boiler System ACCS Air Cooled Condenser System CARS Condenser Air Removal System DBE Design Basis Event DCA Design Certification Application FCV Feedwater Check Valve FW Feedwater FWIV Feedwater Isolation Valve FWRV Feedwater Regulation Valve FWS Condense and Feedwater System MPS Module Protection System MSIBV Main Steam Isolation Bypass Valve MSIV Main Steam Isolation Valve MSSV Main Steam Safety Salve PAM Post Accident Monitoring SC Seismic Classification SG Steam Generator SSC Systems, Structures, and Components TBS Turbine Bypass System TGS Turbine Generator System TS Technical Specification

NuScale Nonproprietary Template #: 0000-21727-F01 R10 Chapter 11 3/19/2024 Presenters:

Seth Robison, Chelsea Lockwood, and Freeda Ahmed Radioactive Waste Management

NuScale Nonproprietary Template #: 0000-21727-F01 R10 Chapter 11 - Radioactive Waste Management Section 11.1 - Source Terms Section 11.2 - Liquid Waste Management System Section 11.3 - Gaseous Waste Management System Section 11.4 - Solid Waste Management System Section 11.5 - Process and Effluent Radiological Monitoring and Sampling Systems Section 11.6 - I&C Design Features for Radiation Monitoring

NuScale Nonproprietary Template #: 0000-21727-F01 R10 Section 11.1 - Source Terms Same methodology as DCA Updated source term information in Table 11.1-1 through Table 11.1-8 o Resulting from the change in cycle length, increase in burnup, and change in thermal power Audit results o NRC review of the dose input and output files associated with the LADTAP and GASPAR code runs (A-11.1-1) o Explanation between the differences in the DCA and SDAA source term information (A-11.1-2) o Difference between the full power steam flow rate in Chapter 10 and the secondary coolant flow rate in Table 11.1-2.

The more conservative secondary coolant flow rate was used in the dose calculation (A-11.1-3)

NuScale Nonproprietary Template #: 0000-21727-F01 R10 Section 11.2 - Liquid Waste Management System Changes from DCA o Removed COL Item on mobile equipment

The design allows for at least 30 days of holdup capacity. Description of mobile equipment is needed if there is less than 2 days holdup capacity.

o Some component changes to the LRWS - concept remains unchanged

Similar to DCA - Use of filters, ion exchangers, and reverse osmosis Audit results o Removal of the COL Item (A-11.2-1)

NuScale Nonproprietary Template #: 0000-21727-F01 R10 Section 11.3 - Gaseous Waste Management System No changes from DCA No audit questions

NuScale Nonproprietary Template #: 0000-21727-F01 R10 Section 11.4 - Solid Waste Management System Minor system design changes o Hard piped connections between the RWBV and LRW and SRW tanks changed to hooded connections Audit results o Wording clarified regarding the two phase separator tanks and two spent resin tanks (A-11.4-1 and follow-up) o Use of mobile equipment wording change. Not needed for SRWS to meet processing requirements (A-11.4-2 and follow-up) o Review of the amount of storage space available for Class A waste (A-11.4-3) o Clarifying description of reverse osmoses filter membranes (A-11.4-4) o Clarification added to Figure 11.4-1 to differentiate between the drum dryer skid and dewatering skid (A-11.4-5)

NuScale Nonproprietary Template #: 0000-21727-F01 R10 Section 11.5 - Process and Effluent Radiological Monitoring and Sampling Systems Changes from DCA o Reduction in the number of modules and associated design changes between the DCA and SDA resulted in a net reduction in the number of radiation monitors o Auxiliary Boiler System o Circulating Water System eliminated

Dry Cooling (Air-cooled condensers)

Audit results o Ar-41 for leak detection (A-11.5-1) o Monitor Alarms in the main control room (A-11.5-2) o Calibration requirement for radiation monitors (A-11.5-3) o Sampling Points (A-11.5-4)

NuScale Nonproprietary Template #: 0000-21727-F01 R10 Section 11.6 - I&C Design Features for Radiation Monitoring Design changes from DCA captured in Section 11.5

NuScale Nonproprietary Template #: 0000-21727-F01 R10 Acronyms COL Combined License DCA Design Certification Application I&C Instrument and Controls LRW Liquid Radioactive Waste RWBV Radioactive Waste Building HVAC SDAA Standard Design Approval Application SDA Standard Design Approval SRW Solid Radioactive Waste SRWS Solid Radioactive Waste System

NuScale Nonproprietary Template #: 0000-21727-F01 R10 ACRS Subcommittee Meeting (Open Session) 3/19/2024 Chapters 2, 13, and 17

NuScale Nonproprietary Template #: 0000-21727-F01 R10 Acknowledgement and Disclaimer This material is based upon work supported by the Department of Energy under Award Number DE-NE0008928.

This presentation was prepared as an account of work sponsored by an agency of the United States (U.S.)

Government. Neither the U.S. Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the U.S. Government or any agency thereof. The views and opinions of authors expressed herein do not necessarily state or reflect those of the U.S. Government or any agency thereof.

NuScale Nonproprietary Template #: 0000-21727-F01 R10 Chapter 2 3/19/2024 Presenter: Tyler Beck Site Characteristics and Site Parameters

NuScale Nonproprietary Template #: 0000-21727-F01 R10 Chapter 2 - Site Characteristics and Site Parameters Section 2.0 - Site Characteristics and Site Parameters Section 2.1 - Geography and Demography Section 2.2 - Nearby Industrial, Transportation, and Military Facilities Section 2.3 - Meteorology Section 2.4 - Hydrologic Engineering Section 2.5 - Geology, Seismology, and Geotechnical Engineering Note: Chapter 2 scope is largely site-specific. Each Section includes a COL item to ensure the site-specific values are provided.

NuScale Nonproprietary Template #: 0000-21727-F01 R10 Section 2.0 - Site Characteristics and Site Parameters

The NuScale Power Plant US460 standard design uses site parameters that are representative of a reasonable number of potential plant site locations in the United States. Table 2.0-1 summarizes these parameters

Applicants will verify the site-specific parameters

NuScale Nonproprietary Template #: 0000-21727-F01 R10 Section 2.1 - Geography and Demography

The NuScale Power Plant US460 standard design considers the exclusion area boundary and low population zone outer boundary are as close as 369 feet from the nearest release point (i.e., site boundary) o This is a change from 400 feet in the DCA

The only change from the DCA is the exclusion area boundary and low population zone outer boundary

NuScale Nonproprietary Template #: 0000-21727-F01 R10 Section 2.2 - Nearby Industrial, Transportation, and Military Facilities

The SDAA does not postulate hazards from nearby industrial, transportation, or military facilities o Nearby facilities and potential resulting hazards are entirely in the scope of COL Item 2.2-1

No change from the DCA

NuScale Nonproprietary Template #: 0000-21727-F01 R10 Section 2.3 - Meteorology

The NuScale Power Plant US460 standard design uses meteorological parameters that are representative of a reasonable number of potential plant sites in the US o Includes precipitation, design basis tornado/hurricane, snow loads, and other similar parameters

Applicants will describe the site-specific meteorology

Changes from the DCA:

o SDAA considers more limiting design basis tornado than the DCA o Difference in atmospheric dispersion values pertains to a different source-to-receptor distance for the US460 Atmospheric dispersion values at the exclusion area boundary are similar to the DCA values (see Section 2.1 for change in exclusion area boundary)

Atmospheric dispersion values at MCR are lower than the DCA values Routine release values are lower than the DCA values

NuScale Nonproprietary Template #: 0000-21727-F01 R10 Section 2.4 - Hydrologic Engineering

The NuScale Power Plant US460 standard design does not rely on external water supply for the ultimate heat sink or safety-related makeup water. The design reduces the need for local hydrologic features for plant safety

COL Item 2.4-1 requires an applicant to describe the site-specific hydrologic characteristics for sections 2.4.1 through Section 2.4.14, except Section 2.4.8, Section 2.4.10, and Section 2.4.11 o 2.4.8 - Cooling Water Canals and Reservoirs o 2.4.10 - Flood Protection Requirements o 2.4.11 - Low Water Considerations

No major changes to Section 2.4 o Exclusion of Section 2.4.11 from COL Item 2.4-1

NuScale Nonproprietary Template #: 0000-21727-F01 R10 Section 2.5 - Geology, Seismology, and Geotechnical Engineering The NuScale Power Plant US460 standard design uses geologic, seismologic, and geotechnical engineering parameters that are representative of a reasonable number of potential plant site locations in the US.

Section 2.5 is site-dependent 2.5.1 (Basic Geologic and Seismic Information), 2.5.3 (Surface Deformation), and Section 2.5.5 (Stability of Slopes) o No change from DCA 2.5.2 (Vibratory Ground Motion) o Certified seismic design response spectra (CSDRS and CSDRS-HF) are unchanged from the DCA o Addressed in Section 3.7 2.5.4 (Stability of Subsurface Materials and Foundations) o The bearing capacity and settlement values have changed in the SDAA

NuScale Nonproprietary Template #: 0000-21727-F01 R10 Audit Summary Resolution of 10 audit items during the staffs audit

NuScale Nonproprietary Template #: 0000-21727-F01 R10 Acronyms COL Combined License CSDRS Certified Seismic Design Response Spectra DCA Design Certification Application HF High Frequency LPZ Low Population Zone SDAA Standard Design Approval Application SDA Standard Design Approval

NuScale Nonproprietary Template #: 0000-21727-F01 R10 Chapter 13 3/19/2024 Presenter: Beth Brewer Conduct of Operations

NuScale Nonproprietary Template #: 0000-21727-F01 R10 Chapter 13 - Conduct of Operations

Section 13.1 - Organizational Structure

Section 13.2 - Training

Section 13.3 - Emergency Planning

Section 13.4 - Operational Programs

Section 13.5 - Plant Procedures

Section 13.7 - Fitness for Duty

NOT INCLUDED: Section 13.6 - Security

NuScale Nonproprietary Template #: 0000-21727-F01 R10 Section 13.1 - Organizational Structure

Changes from the DCA o Minor editorial changes o No technical changes

RAIs/Audit o No RAIs or Audit Questions

NuScale Nonproprietary Template #: 0000-21727-F01 R10 Section 13.2 - Training

Changes from the DCA o Minor editorial changes o No technical changes

RAIs/Audit o No RAIs or Audit Questions

NuScale Nonproprietary Template #: 0000-21727-F01 R10 Section 13.3 - Emergency Planning Changes from the DCA o Minor editorial changes o TSC changed elevation in the control building and went from seismic category I to seismic category II (fully compliant) o Revised the SDA to clearly state that the TSC displays use the same I&C networks used in the MCR but are configured to provide display only, no controls.

o Went from three COL Items in the DCA to two in the SDAA

The DCA had separate COL Items for descriptions of the OSC and EOF and these were combined into one broader COL Item that requires the applicant to describe the emergency response facilities.

DCA COL Item 13.3-1 required the applicant to describe direct communication system or systems between the OSC and the control room and this was eliminated from the SDAA COL Items and included directly in the SDAA text.

Regulations were updated in the SDAA: 10 CFR 50.47 and 10 CFR 50 Appendix E were removed from the DCA COL Items, and the SDAA COL Items refer to 10 CFR 50 generally due to rulemaking in process during SDA development (new rule 10 CFR 50.160).

Removed reference to 10 CFR 52.48 because it is a standard design certification requirement RAIs/Audit o RAI 10097, Questions 13.3-1, 13.3-2, 13.3-3: Needed additional design descriptions to explain how the TSC meets NUREG-0696 and Supplement 1 to NUREG-0737

Section 13.3 was revised to add additional information to address RAIs

NuScale Nonproprietary Template #: 0000-21727-F01 R10 Section 13.4 - Operational Programs

Changes from the DCA o Minor editorial changes o Removed Reactor Vessel Material Surveillance Program and Motor-Operated Valve Testing Program from the COL Item Not applicable to US460 design

RAIs/Audit o No RAIs or Audit Questions

NuScale Nonproprietary Template #: 0000-21727-F01 R10 Section 13.5 - Plant Procedures

Changes from the DCA o Section 13.5.2.1 - removed discussion about Generic Technical Guidelines o Clarified and consolidated the information concerning how the Generic Technical Guidelines will be used to develop site specific emergency operating procedures into SDA COL Item 13.5-5, and then provide a process to maintain them in COL Item 13.5-3 The plant specific technical guidelines developed by a COL holder will be nearly identical to the Generic Technical Guidelines provided to the applicant prior to COLA submittal.

o Renumbered COL Items

RAIs/Audit o No RAIs or Audit Questions

NuScale Nonproprietary Template #: 0000-21727-F01 R10 Section 13.7 - Fitness-For-Duty

Changes from the DCA o Removed two COL Items related to the operational and construction Fitness-For-Duty programs An applicant referencing the standard design is responsible for providing an FFD program description and implementation as described in 10 CFR Part 26

RAIs/Audit o No RAIs or Audit Questions

NuScale Nonproprietary Template #: 0000-21727-F01 R10 Acronyms COL Combined License COLA Combined License Application DCA Design Certification Application EOF Emergency Operations Facility FFD Fitness for Duty I&C Instrumentation & Control MCR Main Control Room OSC Operational Support Center RAI Request for Additional Information SDAA Standard Design Approval Application SDA Standard Design Approval TSC Technical Support Center

NuScale Nonproprietary Template #: 0000-21727-F01 R10 Chapter 17 3/19/2024 Presenter: Amanda Bode Quality Assurance and Reliability Assurance

NuScale Nonproprietary Template #: 0000-21727-F01 R10 Chapter 17 - Quality Assurance and Reliability Assurance Section 17.1 - Quality Assurance During the Design Phase Section 17.2 - Quality Assurance During the Construction and Operation Phases Section 17.3 - Quality Assurance Program Description Section 17.5 - Quality Assurance Program Description Section 17.6 - Maintenance Rule NOT INCLUDED: Section 17.4 - Reliability Assurance Program

NuScale Nonproprietary Template #: 0000-21727-F01 R10 Chapter 17 Section Description Remarks 17.1 Quality Assurance during Design Phase Described in Section 17.5 17.2 Quality Assurance during Construction and Operation Phase Not applicable to SDAA. COL applicant describes the quality assurance program applicable to site-specific design activities and to the construction and operations phases.

17.3 Quality Assurance Program Description Described in Section 17.5 17.5 Quality Assurance Program Description -

Design Certification, Early Site permits, and New License Applicants Does not address construction and design QA activities that begin at construction 17.6 Maintenance Rule Not applicable to SDAA. The maintenance rule operational program is the responsibility of an applicant.

NuScale Nonproprietary Template #: 0000-21727-F01 R10 Section 17.5 - Quality Assurance Program Description Quality Assurance Program Description (QAPD) for the NuScale Power Plant US460 is provided in the NRC approved topical report NuScale Power, LLC Quality Assurance Program Description (MN-122626-A, Revision 1)

The NuScale Quality Assurance Plan is established in accordance with 10 CFR 50, Appendix B, 10 CFR 52, and 10 CFR 21 based on the requirements and recommendations of ASME NQA-1-2008 and NQA-1a-2009 addenda, Parts I and II, as endorsed by Regulatory Guide 1.28, Revision 4 Safety Evaluation published December 2023 NRC inspection of NuScales QA program performed February 26-March 1

NuScale Nonproprietary Template #: 0000-21727-F01 R10 RAIs and Audit questions No RAIs on Chapter 17 (minus 17.4)

No Audit questions on Chapter 17 (minus 17.4)

NuScale Nonproprietary Template #: 0000-21727-F01 R10 Acronyms COL Combined License QA Quality Assurance QAPD Quality Assurance Program Description RAI Request for Additional Information SDAA Standard Design Approval Application SDA Standard Design Approval

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