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Latest revision as of 20:59, 20 January 2022
ML21028A443 | |
Person / Time | |
---|---|
Issue date: | 01/28/2021 |
From: | NRC/NRR/DNRL/NRLB |
To: | |
Shea J | |
References | |
Download: ML21028A443 (6) | |
Text
NRC Staff Presentation-Open Session GEH Topical Report NEDC-33911P, Revision 0, Supplement 1, BWRX-300 Containment Performance BWRX-300 Small Modular Reactor ACRS Subcommittee Meeting February 3, 2021 1
Presentation Outline
- NRC Staff Review Team
- BWRX-300 Containment Background
- NRC Staff Overview of NEDC-33911P 2
NRC Staff Review Team
- NRR Containment and Plant Systems Branch (SCPB)
- Chang-Yang Li
- Angelo Stubbs
- NRR Nuclear Systems Performance Branch (SNSB)
- NRR Mechanical Engineering and Inservice Testing Branch (EMIB)
- Yueh-Li (Renee) Li
- NRR Vessels and Internals Branch (NVIB)
- NRR New Reactor Licensing Branch (NRLB)
- George Wunder 3
BWRX-300 Containment Design Background
- BWRX-300 containment is an underground subterranean steel or reinforced concrete primary containment vessel (PCV) or a combination of steel and reinforced concrete
- Containment heat is removed by Passive Containment Cooling System (PCCS)
- Combustible gas control is not required for design basis accidents (DBAs) because the BWRX-300 containment atmosphere is well mixed and the containment atmosphere is initially nitrogen-inerted 4
BWRX-300 Containment Performance NEDC-33911P provides design requirements, analytical methods, acceptance criteria, and regulatory bases for:
- Containment and the Passive Containment Cooling System (PCCS)
- Containment isolation valves (CIVs)
- Analytical methods evaluating containment performance
- Acceptance criteria for the BWRX-300 containment performance in accordance with the design requirements specified for the containment, PCCS, and CIVs 5
Overview of NRC Staff Review
- Piping and Valves Design Relevant to Containment Performance
- Containment Functional Design
- Containment Heat Removal Systems
- Secondary Containment Functional Design
- Containment Isolation System
- Combustible Gas Control in Containment
- Containment Leakage Testing
- Fracture Prevention of Containment Pressure Boundary 6