ML19057A131
| ML19057A131 | |
| Person / Time | |
|---|---|
| Issue date: | 02/26/2019 |
| From: | Proffitt J NRC/NRR/DLP/PLPB |
| To: | |
| Proffitt J | |
| References | |
| Download: ML19057A131 (10) | |
Text
NRC Preparations to License Accident Tolerant Fuel Andrew Proffitt February, 2019
Agenda I. ATF Project Plan implementation II. Cr-coated cladding PIRT/ISG III. Upcoming NRC meetings on ATF 2
I. ATF Project Plan Implementation
- NRCs ATF Project Plan issued in September 2018 (ML18261A414)
- Heightened stakeholder engagement
- Fuel vendors
- Public
- DOE
- Industry
- Actively modifying NRC analysis capability to model near-term ATF concepts 3
Draft ATF Regulatory Issue Summary Issued
- Pre-application Communication and Scheduling for Accident Tolerant Fuel Submittals (ML18270A019)
- Inform budget and resource planning
- Scheduling
- Necessary knowledge and skillsets
- Begin addressing questions with NRC staff today
- Responses are voluntary 4
Confirmatory Tool Updates
- Identifying data gaps / code updates needed to support near-term ATF concepts
- Near-term focus:
- Doped fuels
- Coated claddings
- FeCrAl
- Phase 1 (~67 GWd/mtU) burnup extension
- Completed activities:
- Material library updates (available data)
- Oxidation kinetics for FeCrAl
- Assessment on doped fuel behavior
- Engaged with fuel vendors and DOE/CASL on ATF modeling efforts and plans 5
II. Chrome Coated Cladding
- Initiated phenomena identification and ranking (PIRT) exercise for chrome coated zirconium alloy cladding
- Preliminary report available in ADAMS (ML19036A716)
- Provided to experts in advance of panel discussions
- PIRT panel to be held at PNNL April 23-25, 2019 6
Preliminary Cr-Coated PIRT Report
- Overview of coating concepts and techniques
- Cr-Zr Phase Diagram
- Potential changes to Safety Analysis Codes, Methods and Safety Limits
- Cladding base material property correlations + impacts
- Impact of coating on SAFDLs
- Changes to existing codes and methodologies
- Current publicly available data
- In-reactor
- Ex-reactor
- Data gaps and performance concerns 7
Developing Interim Staff Guidance for Predictable and Efficient Reviews
Purpose:
Provide temporary guidance to staff until more durable guidance is incorporated into established NRC regulatory processes
- Useful in facilitating expedited resolution of emerging technical or licensing issues
- Provide staff guidance concerning issues not currently addressed within established NRC regulatory processes
- PIRT results will be used to develop ISG that supplements standard review plan (SRP) chapters 4.2 and 15 (as necessary)
- Provide guidance to both staff and industry:
- Industry: Understand staff expectations for submittals
- Staff: Supplement the standard review plan with concept specific review criteria 8
Cr-Coated Cladding PIRT/ISG Timeline
- April 2019: PIRT panel
- July 2019: Final PIRT report
- July 2019: Initial draft ISG publicly available
- August 2019: Public meeting on initial draft ISG
- September 2019: ISG published in Federal Register for public comment
- December 2019: Public meeting to discuss resolution of comments
- December 2019: Final issuance of ISG 9
III. Upcoming NRC ATF Meetings
- Public portion at beginning of all vendor meetings
- February 27, 2019: GNF
- February 27-28, 2019: Framatome
- February 28, 2019: Westinghouse
- March 14, 2019 - RIC Session
- Accident Tolerant Fuels: Preparations to License
- Panelists: DOE, NEA, NEI, & NRC
- April 23-25, 2019 - Cr-coated PIRT Panel
- Richland, WA (PNNL)
- meeting notice
- July 2019 - Public meeting on Cr-coated interim staff guidance
- Initial draft to be made available prior to meeting 10