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Category:Meeting Briefing Package/Handouts
MONTHYEARML24016A2372024-01-17017 January 2024 NEI Environmental Reviews Slides Public Meeting 1-17-24 ML24008A0442024-01-0909 January 2024 NEI - Slides for NRC Workshop 1 on Revision to RG 1.183 R1 - Final - ML24008A044 ML23342A0262023-12-14014 December 2023 December 14, 2023, Presentation on NEI 23-01 Operator Cold Licensing Training Plan for Advanced Nuclear Reactors ML23347A1782023-12-13013 December 2023 12-14 NEI EPRI Presentation NRC Public Meeting 16-03 R1 ML23303A1922023-10-30030 October 2023 NEI Slides for SLR Public Meeting - Oct 31 2023 ML23324A2392023-10-24024 October 2023 S1P6 - Hilary Lane - NRC AMT Workshop - Oct. 2023 ML23258A1992023-09-20020 September 2023 NEI 99-02 Draft Rev. 8 Update for Sept 2023 ROP Public Meeting ML23242A0782023-08-30030 August 2023 Hbu Workshop IV Industry Presentation: Drive to Deploy ATF with Increased Enrichment and Higher Burnup ML23230A0142023-08-22022 August 2023 Industry Slide Presentation for 8-22-23 Meeting on ARCAP-TICAP and DG-1404 Guidance Documents ML23191A0632023-07-0707 July 2023 NEI Cybersecurity Presentation for July 2023 ROP Public Meeting ML23191A0662023-07-0707 July 2023 NEI 99-02 Draft Rev. 8 Update for July 2023 ROP Public Meeting ML23160A1512023-06-15015 June 2023 25 - Industry - Industry Perspectives on ASME III and XI Pre-Service Inspection ML23160A1422023-06-15015 June 2023 20 - Industry - Industry Perspective on Performance Monitoring ML23116A1892023-05-31031 May 2023 Industry Observations of NRC Licensing Program (NEI Slides May 2023) ML23136A5912023-05-18018 May 2023 NEI Safety Culture Presentation for May 2023 ROP Public Meeting ML23125A3192023-05-0909 May 2023 NEI Presentation for May 9, 2023, Public Meeting on NEI 22-05, Revision a ML23115A0302023-04-27027 April 2023 NEI Perspective on Performance Monitoring in Use of Probabilistic Fracture Mechanics for Optimizing Inspections of Non-RPV Pressure Vessels, April 27, 2023 ML23088A0822023-03-30030 March 2023 NEI Presentation - March 30, 2023 PRA Configuration Control Public Meeting ML23082A0572023-03-28028 March 2023 Proposal to Establish Alternate Requirements for Components Commensurate with Safety and Risk ML23079A2642023-03-23023 March 2023 General Visual Examination of Containment Surfaces Covered by Insulation - March 23, 2023 Public Meeting Slides from NEI ML23210A0042023-03-15015 March 2023 Destination: Termination, NRC Regulatory Information Conference ML23045A2892023-03-14014 March 2023 RIC 2023 - 03/14/2023 to 03/16/2023 Regulatory Information Conference (Ric).Operational and Safety Benefits of Risk Informed Applications ML23061A0292023-03-0202 March 2023 NEI Presentation - Advanced Reactor Digital I&C Licensing Workshop 1 ML23013A0782023-01-13013 January 2023 PI&R Inspection Discussion for January 2023 ROP Public Meeting ML23041A4342022-12-15015 December 2022 NEI Presentation for December 15, 2022 Industry Spent Fuel Activities Prioritization Meeting ML22291A4442022-10-11011 October 2022 NEI 22-01 License Termination Plan Process Presentation at October 11 2022 Meeting on NUREG-1757 Vol. 2 ML22266A2632022-09-28028 September 2022 Session 2 - Advanced Reactor Developers Perspectives on Codes and Standards ML22250A7122022-09-21021 September 2022 NEI 22-03 Presentation Slides for NRC Public Meeting (Sept. 21, 2022) ML22235A7032022-08-24024 August 2022 NEI Presentation for Aug 26, 2022 Public Meeting - Source Terms and Radiological Consequence Analyses ML22194A0682022-07-18018 July 2022 NEI Presentation for NEI 22-02 Rsi Response ML22174A2822022-06-22022 June 2022 NEI Presentation for Public Meeting with NMMSS Users Community to Discuss Foreign Obligation Reporting Requirements for Low Enriched Uranium ML22172A1352022-06-21021 June 2022 NEI Presentation for Public Meeting Industry Perspectives on Rulemaking for Greater than 5 Percent Enrichment ML22143A8542022-05-20020 May 2022 Nuclear Energy Institue (NEI) Presentation Slides to ACRS Subcommittee on CCF Secy Paper, May 20, 2022 ML22136A1162022-05-11011 May 2022 Presentation 5 - Utilizing the Nuclear Energy Institute (NEI) 07-07 Industry Groundwater Protection Initiative as a Foundation for Addressing Subsurface Site Assessments ML22088A0342022-03-29029 March 2022 Public Meeting Presentation by NEI Regarding Part 53 Rulemaking: Selected Topics ML22077A4012022-03-23023 March 2022 NEI INL Presentation March 23, 2022, NRC Workshop Isv Hfe Issue ML22070B1212022-03-16016 March 2022 Industry Perspective on IEEE Std -1819 ML22140A3612022-03-10010 March 2022 mccullumr- hv-th29 ML22060A0022022-03-0101 March 2022 Dt Public Meeting - NEI Slides ML22042A0092022-02-11011 February 2022 NEI Presentation Slides for February 15, 2022, Public Meeting on Common-Cause-Failure (CCF) Policy ML22031A2612022-01-31031 January 2022 NEI Feb 2022 PRA Configuration Control Inspection Workshop ML22027A3922022-01-27027 January 2022 NEI 50.59 Risk Insights Presentation ML21350A2122021-12-17017 December 2021 Slide Presentation: ACRS Future Plant Designs Subcommittee Meeting, 10 CFR Part 53, Licensing and Regulation of Advanced Nuclear Reactors - Presentation by Nuclear Energy Institute and Us Nuclear Industry Council ML21335A2602021-12-0202 December 2021 ROP Public Meeting Gtg PI 12022021 ML21334A3562021-11-29029 November 2021 Fire Protection-ROP Public Meeting-120221 ML21223A1002021-08-11011 August 2021 NEI Slides for Public Meeting on Reg Guide 1.9, Rev.5 - Revised 8-11 ML21221A2962021-08-11011 August 2021 NEI Slide Presentation on Regulatory Guide 1.9, Revision 5 for Public Meeting August 11, 2021 ML21187A0572021-07-0707 July 2021 July 7 Public Mtg Slides for Pre-application of NEI 16-03 & EPRI i-LAMP ML21173A0562021-06-22022 June 2021 NEI Presentation - Adversary Timeline Methodology (Final- 6.24.21) - Updated ML21173A2862021-06-21021 June 2021 NEI 20-07 Systematic Approach to CCF NRC 2024-01-09
[Table view] Category:Slides and Viewgraphs
MONTHYEARML24016A2372024-01-17017 January 2024 NEI Environmental Reviews Slides Public Meeting 1-17-24 ML24010A0202024-01-11011 January 2024 Public Meeting on SLR Efficiencies - NEI Presentation ML24008A0442024-01-0909 January 2024 NEI - Slides for NRC Workshop 1 on Revision to RG 1.183 R1 - Final - ML24008A044 ML23342A0262023-12-14014 December 2023 December 14, 2023, Presentation on NEI 23-01 Operator Cold Licensing Training Plan for Advanced Nuclear Reactors ML23347A1782023-12-13013 December 2023 12-14 NEI EPRI Presentation NRC Public Meeting 16-03 R1 ML23303A1922023-10-30030 October 2023 NEI Slides for SLR Public Meeting - Oct 31 2023 ML23324A2392023-10-24024 October 2023 S1P6 - Hilary Lane - NRC AMT Workshop - Oct. 2023 ML23261C3792023-09-27027 September 2023 NEI 22-04 Pre-Submittal Meeting with NRC - September 27, 2023 ML23258A1992023-09-20020 September 2023 NEI 99-02 Draft Rev. 8 Update for Sept 2023 ROP Public Meeting ML23242A0782023-08-30030 August 2023 Hbu Workshop IV Industry Presentation: Drive to Deploy ATF with Increased Enrichment and Higher Burnup ML23242A1662023-08-30030 August 2023 the Future of Nuclear Power: 2023 Baseline Survey (Slides) ML23230A0142023-08-22022 August 2023 Industry Slide Presentation for 8-22-23 Meeting on ARCAP-TICAP and DG-1404 Guidance Documents ML23228A0042023-08-18018 August 2023 NEI Slides for Public Meeting to Discuss Possible Efficiencies on the Subsequent License Renewal Review - August 18, 2023 ML23191A0162023-07-11011 July 2023 NEI Comments on Risk-Informed Process for Evaluation (RIPE) DORL TSG - 7/11/23 Public Meeting Slides from NEI ML23191A0632023-07-0707 July 2023 NEI Cybersecurity Presentation for July 2023 ROP Public Meeting ML23191A0662023-07-0707 July 2023 NEI 99-02 Draft Rev. 8 Update for July 2023 ROP Public Meeting ML23160A1512023-06-15015 June 2023 25 - Industry - Industry Perspectives on ASME III and XI Pre-Service Inspection ML23160A1422023-06-15015 June 2023 20 - Industry - Industry Perspective on Performance Monitoring ML23116A1892023-05-31031 May 2023 Industry Observations of NRC Licensing Program (NEI Slides May 2023) ML23136A5912023-05-18018 May 2023 NEI Safety Culture Presentation for May 2023 ROP Public Meeting ML23125A3192023-05-0909 May 2023 NEI Presentation for May 9, 2023, Public Meeting on NEI 22-05, Revision a ML23117A3712023-05-0202 May 2023 NEI Lessons Learned Meeting Slides, May 2, 2023 ML23115A0302023-04-27027 April 2023 NEI Perspective on Performance Monitoring in Use of Probabilistic Fracture Mechanics for Optimizing Inspections of Non-RPV Pressure Vessels, April 27, 2023 ML23088A0822023-03-30030 March 2023 NEI Presentation - March 30, 2023 PRA Configuration Control Public Meeting ML23082A0572023-03-28028 March 2023 Proposal to Establish Alternate Requirements for Components Commensurate with Safety and Risk ML23079A2642023-03-23023 March 2023 General Visual Examination of Containment Surfaces Covered by Insulation - March 23, 2023 Public Meeting Slides from NEI ML23210A0042023-03-15015 March 2023 Destination: Termination, NRC Regulatory Information Conference ML23045A2892023-03-14014 March 2023 RIC 2023 - 03/14/2023 to 03/16/2023 Regulatory Information Conference (Ric).Operational and Safety Benefits of Risk Informed Applications ML23061A0292023-03-0202 March 2023 NEI Presentation - Advanced Reactor Digital I&C Licensing Workshop 1 ML23013A0782023-01-13013 January 2023 PI&R Inspection Discussion for January 2023 ROP Public Meeting ML23012A1382023-01-12012 January 2023 General Visual Examination of Containment Surfaces Covered by Insulation - 1/19/23 Public Meeting Slides from NEI ML23041A4342022-12-15015 December 2022 NEI Presentation for December 15, 2022 Industry Spent Fuel Activities Prioritization Meeting ML22333A7192022-11-29029 November 2022 NEI-Presentation-Seismic Hazards Public Meeting - November 2022 - Final Presentation to NRC ML22318A3032022-11-16016 November 2022 NEI-22-01 License Termination Process Pre-Submittal Meeting November 16, 2022 (Presentation) ML22291A4442022-10-11011 October 2022 NEI 22-01 License Termination Plan Process Presentation at October 11 2022 Meeting on NUREG-1757 Vol. 2 ML22250A7122022-09-21021 September 2022 NEI 22-03 Presentation Slides for NRC Public Meeting (Sept. 21, 2022) ML22235A7032022-08-24024 August 2022 NEI Presentation for Aug 26, 2022 Public Meeting - Source Terms and Radiological Consequence Analyses ML22216A1152022-08-0404 August 2022 August 4, 2022 Rislr Public Meeting Presentation by Nuclear Energy Institute ML22194A0682022-07-18018 July 2022 NEI Presentation for NEI 22-02 Rsi Response ML22174A2822022-06-22022 June 2022 NEI Presentation for Public Meeting with NMMSS Users Community to Discuss Foreign Obligation Reporting Requirements for Low Enriched Uranium ML22172A1352022-06-21021 June 2022 NEI Presentation for Public Meeting Industry Perspectives on Rulemaking for Greater than 5 Percent Enrichment ML22152A0942022-06-0202 June 2022 NEI Slides - Risk Insights for Aging Management Presentation June 2, 2022 ML22143A8542022-05-20020 May 2022 Nuclear Energy Institue (NEI) Presentation Slides to ACRS Subcommittee on CCF Secy Paper, May 20, 2022 ML22164A0182022-05-18018 May 2022 Fuel Cycle Industry NRC Fcf Stakeholders Mtg May 2022 ML22124A2072022-05-13013 May 2022 Public Meeting Slides for May 13 2022 CRGR Meeting Regarding RIS on Operating Leakage ML22136A1162022-05-11011 May 2022 Presentation 5 - Utilizing the Nuclear Energy Institute (NEI) 07-07 Industry Groundwater Protection Initiative as a Foundation for Addressing Subsurface Site Assessments ML22102A2022022-04-12012 April 2022 NEI Presentation Related to the Development of Adversary Timelines NRC Comment Resolution ML22053A2802022-03-31031 March 2022 Regulatory Information Conference (RIC) RIC 2022 Technical Session T8 - True D - NEI Presentation RIDM Greater than Sum of Its Parts ML22088A0342022-03-29029 March 2022 Public Meeting Presentation by NEI Regarding Part 53 Rulemaking: Selected Topics ML22077A4012022-03-23023 March 2022 NEI INL Presentation March 23, 2022, NRC Workshop Isv Hfe Issue 2024-01-09
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Table top exercise -Auxiliary/Support System Replacement Using NEI 16-16 and Appendix DMEETING BETWEEN THE U.S. NUCLEAR REGULATORY COMMISSION STAFF AND THE NUCLEAR ENERGY INSTITUTE TO DISCUSS NEI 16-16, "GUIDANCE FOR ADDRESSING DIGITAL COMMON CAUSE FAILURE" AND ITS RELATIONSHIP WITH APPENDIX D OF NEI 96-07February 9, 2017 *Washington DC 1
Discussion Topics
- Control room chiller controls upgrade example will be discussed*Demonstration of NEI 16-16 approach for analysis of CCF malfunction results
-CCF malfunctions can be bounded by previous deterministic plant analyses-Can be found acceptable when performing 10 CFR 50.59 evaluations
- NRC and Industry achieve a common understanding of the issues associated with 50.59 Evaluation Questions 1, 2, 5, and 6 related to digital changes
- Overall goal is to align on methods to efficiently implement the majority of Digital upgrades under 50.59 2
Overview of Digital Upgrade
- Existing chiller controls are 1970 vintage are obsolete and required significant maintenance to maintain.
- Both the chiller controls and chillers are being replaced. The HVAC air handling units are separate from the chillers and are not being replaced.
- Chiller replacements would significantly improve MCR HVAC reliability. Several reliability improvements have been designed into the digital control system such
as: -Freeze protection which are not available in old analog systems.
-Elimination of manual actions required to restart chiller if power is lost more that 60 seconds.
-Time delay for compressor restart to prevent cycling on power interrupts (allows time for power stability).
-A design that will allow the chiller to operate in a limited condition when certain process values enter off-normal conditions and still provide cooling.
-Variable anti-cycle time based on how long the chiller was running prior to stopping and how long the chiller has been stopped.
- The new chiller controls were selected due to extensive successful operating history and reliability in the commercial world with modern multi input control algorithm that has extensive operating history in an existing application that is not inherently special.
3 NEI 16-16 CCF Susceptibility Analysis
- The industry position is that CCF is not always credible
- However, for the purposes of the discussion, and this example today, the Chiller Controls Example is based on a NEI 16-16 CCF susceptibility analysis that determined that a CCF was credible.
[NEI 16-16 Section 4.1]
- The details related to performing the CCF susceptibility analysis will not be discussed today
- The results of the CCF susceptibility analysis indicate that a credible CCF of both chillers could result in maximum cooling by both chillers or no cooling at all by either chiller
-Both scenarios will be evaluated and analyzed 4
NEI 16-16 Analysis of CCF Malfunction Result
- For this example, it is determined that the CCF can be caused only by a CCF source whose likelihood is significantly less than the likelihood of a single failure. (This would actually be determined through an assessment of defensive measures during the CCF Susceptibility Analysis). Therefore, the CCF is considered beyond design basis.
[NEI 16-16 Section 4.1.2.2.3]
- If a credible CCF is beyond design basis, the following analysis methods and acceptance criteria are applied [NEI 16-16 Section 4.2.2.1]:
-Design basis or best estimate methods. Best estimate methods can employ realistic and nominal initial plant conditions and equipment performance, relaxed acceptance criteria, no other assumed equipment failures, credit for beneficial control system action, and allow conclusions based on qualitative expert judgment or quantitative analysis.
-Mitigating systems (also referred to as systems used to cope with the CCF) can be safety related, or non-safety related with suitable attributes
-Bounding is based on previously analyzed AOOs or PAs 5
NEI 16-16 Analysis of CCF Malfunction Result
- For the Chiller Controls example, Best Estimate methods will be used, with realistic or nominal conditions, such as [NEI 16-16 Section 4.2.2.1.2]:
-Average summer outdoor temperature, versus worst case-Average summer ultimate heat sink temperature (cooling water to the chillers), versus worst case
-Relaxed temperature limits for the control room area (104 degrees versus 90 degrees) 6 NEI 16-16 Bounded Criteria
- The plant level end result due to a CCF malfunction is considered bounded if all the following criteria are met [NEI 16-16 Section 4.2.1]: 1.If the same type of transient or accident is already included in the deterministic safety analyses of the FSAR (e.g., excess feedwaterevent), 2.If only systems previously described in the FSAR are credited for mitigation, and 3.If there is no more than a minimal reduction in margin to the critical safety limit(s) in the applicable transient or accident from Item 1, above (e.g.,
departure from nucleate boiling ratio or containment pressure).For a CCF in a support system whose function is required for the operation of a component, system or function that is directly credited in an FSAR safety analysis, the plant level end result is considered bounded if those directly credited systems are still capable of performing their credited safety function
.7 Chiller Controls ExampleAnalysis of CCF Malfunction Result
- Chillers are a support system whose function is required for the operation of a component, system or function that is directly credited in an FSAR safety analysis (e.g., RPS, ESFAS).
- The "fail on" heat removal case has no adverse impact on MCR equipment and personnel beyond creating uncomfortably cool conditions. Heaters are provided in the MCR HVAC system for controlling humidity within limits, and the heater controls are independent of the chiller controls.
- The "fail off" heat removal case should consider eventual overheating of equipment located in the MCR envelope, including equipment required for achieving and maintaining safe shutdown. In the event that a total loss of heat removal by the chillers occurs, the control room operators will detect an increase in temperature by feel or by surveillance of MCR room temperature or MCR return air temperature indications, which are independent from the chiller controls.
8 Chiller Controls ExampleAnalysis of CCF Malfunction Result
- Whether the plant is at power or the I&C failure is assumed to occur during a transient or accident, only the chillers are affected by the CCF that would be caused by controller failure. Air handling units and dampers remain unaffected, and are available for supplying outdoor air so that the MCR temperature is kept near the seasonal outdoor air temperature (best estimate), and one or more MCR doors can be opened to exhaust hot air.
- Operators can open safe shutdown equipment cabinet doors to reduce the local temperature rise caused by self-heating. Under these conditions, the equipment required for safe shutdown is not expected to reach their specified temperature limits (best estimate).
9 Chiller Controls ExampleAnalysis of CCF Malfunction -Conclusion
- As a support system, the chillers are a system whose function is required for the operation of a component, system or function (in this case, control room equipment) that is directly credited in an FSAR safety analysis.
- Analysis of the CCF Malfunction Results indicate that the plant level end result is considered bounded, as those directly credited systems are still capable of performing their credited safety function. [NEI 16-16 Section 4.2.1]
10 Chiller Controls Upgrade50.59 Evaluation 11 OBJECTIVE*NRC and Industry achieve a common understanding of the issues associated with Evaluation Questions 1, 2, 5, and 6 related to digital changes 12 Chiller Controls Replacement Background
- Safety-related control room chillers
- Current chillers have analog controls with a proposed activity to replace with new chillers that have identical digital controls on both trains
- UFSAR provides the following failure information related to the chillers:FMEA Conclusion -Loss of one chiller train will result in starting of redundant chiller train
- No discussion of control room chillers in Chapter 15 Accident Analysis 13 50.59 Evaluation Question 1
- Does the proposed activity result in more than a minimal increase in the frequency of occurrence
of an accident previously evaluated in the UFSAR?-The control room chillers are not an initiator of any accident previously evaluated in the UFSAR, nor could the proposed activity create a credible scenario where the chillers could become an accident initiator
-Therefore, the proposed activity to upgrade the chillers cannot result in more than a minimal increase in accident frequency 14 50.59 Evaluation Question 2
- Does the proposed activity result in more than a minimal increase in the likelihood of occurrence of a malfunction of an SSC important to safety previously evaluated in the UFSAR?-Evaluation Question 2 considers malfunctions currently described (previously evaluated) in the UFSAR
-A CCF of the chiller controls in not currently described within the chiller FMEA or any other place in the UFSAR
-A CCF of the chiller controls (new malfunction) will be addressed in Evaluation Question 6 15
- Does the proposed activity create a possibility for an accident of a different type
than previously evaluated in the UFSAR
?-As stated for Question 1, the chillers are not an initiator of any accident analyzed in the UFSAR, nor could the proposed activity create a credible scenario where the chillers could become an accident initiator
-Thus, the proposed activity cannot create the possibility for an accident of a different type 1650.59 Evaluation Question 5 50.59 Evaluation Question 6
- Does the proposed activity create a possibility for a malfunction of an SSC important to safety with a different result than any previously evaluated in the UFSAR
?-A chiller controls CCF creates a new malfunction that would cause simultaneous loss of both chillers
-Loss of both chillers (system level malfunction result) is not currently described in the UFSAR
-The end result on the plant is not different (plant level result is bounded) 17 Summary 18*Demonstrated of NEI 16-16 approach for analysis of CCF malfunction results
-CCF malfunctions can be bounded by previous deterministic plant analyses
-Can be found acceptable when performing 10 CFR 50.59 evaluations
- Discussed issues associated with 50.59 Evaluation Questions 1, 2, 5, and 6 related to digital changes with goal of NRC and Industry achieving a common understanding
- The industry position is that CCF is not always credible
- Overall goal is to align on methods to efficiently implement the majority of Digital upgrades under 50.59 Q&A?19