ML21202A230
| ML21202A230 | |
| Person / Time | |
|---|---|
| Issue date: | 07/21/2021 |
| From: | Office of Nuclear Reactor Regulation |
| To: | |
| Wentzel M | |
| References | |
| Download: ML21202A230 (23) | |
Text
Changesto theATFProjectPlan U.S.NRCPublicMeeting July22,2021 10:00am-12:00pm
Introductions and Meeting Logistics Participants will be on mute until the presentations are complete.
The NRC will call on those with their hands up one at a time to provide feedback.
Todays meeting is an Observation meeting. The public will have an opportunity to participate prior to the end of the meeting.
No regulatory decisions will be made at todays meeting.
Welcome Joe Donoghue - Director, Division of Safety Systems NRC Staff Presenters Michael Wentzel, NRR -
ATF Lead Project Manager Joey Messina, NRR -
Technical Reviewer, Nuclear Codes Branch
Purpose
- Provideanoverviewofchangesbeingmadeto theNRCsATFProjectPlanandsolicitfeedback onthosechanges.
REVISION1.2OFTHEATF PROJECTPLAN MichaelWentzel LeadATFProjectManager OfficeOfNuclearReactorRegulation 4
ATF Project Plan
- Designedto:
- Increaseregulatorystabilityandcertainty
- EnhanceandoptimizeNRCreview
- Howtoaccomplishtheabovegoals?
- Increasedstakeholderengagement
- Proactivelicensingactivities
- Independentconfirmatorycalculations 5
Project Plan Revision 1.2 TheNRCstaffisrevisingthePlanbecause:
- Changeinindustryplans
- NRCaccomplishmentsandactivities
- Streamliningtoimproveuseability 6
Significant Changes in Revision 1.2
- Generalstatusupdates
- Increasedfocusonmanagingschedulerisk
- NewAppendixA
- NewAppendixB
Managing Schedule Risk
- Enhancedfocusoneffectivenessofnew paradigmbyclarifyingcertainactivities consideredkeytosuccess.
- Updatedtoincludeareasnotpreviously considered.
New Appendix A
- InformationinpreviousAppendixA incorporatedbackintothebodyofthePlan.
- ReplacedwiththeRegulatoryFramework ApplicabilityAssessment.
New Appendix B
- InformationinAppendixBreplacedwiththe LicensingPathwayDiagrams.
HigherBurnupTopicalReportReviews Submit TR Approve TR NRC ACTIONS VENDOR ACTIONS SRP 4.2 RIA testing RG 1.203 Validate evaluate models for higher burnup ACRS Meeting RG 1.236 Empirical database limitations FFRD and possible loss of coolable geometry during RIA HBU effects on RIA Define cladding failure thresholds Update SRP 4.2 FFRD not addressed RG 1.236 not appliable to 75 GWd/MTU NUREG-2121 Recent FFRD research findings not included NUREG-2121 Data needed to address FFRD if burst is predicted to occur 75 GWd/MTU 68 GWd/MTU Licensing Pathways 11
RegulatoryFramework ApplicabilityAnalysis JosephMessina NuclearMethodsandFuelsBranch OfficeofNuclearReactorRegulation 12
Purpose
- Improveupontheinitialscopingstudy presentedinTablesA.1,A.2, andA.4 inthe previousrevisionoftheATFProjectPlan
- Evaluatetheapplicabilityofexisting regulationsandguidance,aswellasidentify anyupdatesneeded 13
Initial Scoping Study
- Aninitial,roughscopingstudywaspresentedin AppendixAoftheProjectPlan 14
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Regulatory Framework Applicability Analysis
- NRCstaffhasbeenworkingtomorethoroughly assessitsregulatoryframeworkandexpand TablesA.1,A.2, andA.4intheProjectPlan
- ThisapplicabilityanalysisassessestheNRCs regulatoryframeworktospecifically:
- identifyregulationsandguidancethatareimpacted,
- whetherpertinentregulationsandguidancedonot speaktophenomenauniquetohighburnup, increasedenrichment,orneartermATFconcepts
- howthosecouldbeaddressed,
- andwhomayneedtotakeanactionto facilitateclosure 16
Example 1 Note: Green textindicates theNRCmay haveanaction tofacilitate closure.
Bluetext indicatesthat theindustry mayhavean actionto facilitate closure.
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Applicability:identifiedasfully applicableornotfullyapplicable Reason(s)statedforwhythe regulationorguidanceisnotfully applicable Ifclosureisnecessaryandhasbeen identified,itislistedhere 18
Example 2 19
Next Steps
- UpdatetheRegulatoryFramework Applicabilitytableanddevelopandpursue expandingrangeofapplicability,ifnecessary
- TheRegulatoryFrameworkApplicabilitytable isreplacingTablesA.1,A.2, andA.4inthe updatedATFProjectPlanversion1.2.
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NRC/IndustryDiscussion Additionalfeedbackcanbeprovidedat accident_tolerant_fuel@nrc.gov 21
PublicQuestions 22
Forfurtherinformation,pleasevisit https://www.nrc.gov/reactors/atf.html 23