ML19162A078
| ML19162A078 | |
| Person / Time | |
|---|---|
| Site: | 05200045 |
| Issue date: | 06/26/2019 |
| From: | James Shea NRC/NRO/DLSE |
| To: | Michelle Catts GE Hitachi Nuclear Energy, Advisory Committee on Reactor Safeguards |
| Shea J | |
| Shared Package | |
| ML19162A065 | List: |
| References | |
| Download: ML19162A078 (26) | |
Text
6.2.1.9Containment Debris Protection for ECCS Strainers Regulatory Criteria
Code of Federal Regulations
"After any calculated successful initial operation of the ECCS, the calculated core temperature shall be maintained at an acceptably low value and decay heat shall be removed for the extended period of time required by the long-lived radioactivity remaining in the core."
- 6.2.1.9.2Summary of Technical Information
6.2.1.9.3Technical Evaluation
Chemical Effects Introduction/
Background:
Applicant's Approach to Addressing Chemical Effects
Staff Evaluation of Chemical Effects
- Chemical Effects Evaluation Summary
ECCS Systems and Components Post-LOCA Fluid Constituents RHR, HPCF, and RCIC Pump Evaluation
Heat Exchanger Evaluation
Blockage Evaluation for Components Such as Valves, Orifices, Pipes, and Spray Nozzles/Spargers
Instrument Tubing Blockage Evaluation Wear Evaluation for Components Such as Pumps, Valves, Orifices, Pipes and Spray Nozzles/Spargers
Debris Settling Evaluation for Valves, Orifices, Pipes, and Spray Nozzles Chemical Effects Evaluation for Ex-Vessel Downstream Components
Introduction/Background
Applicant's Approach for Addressing In-vessel Downstream Effects
Staff Evaluation of In-vessel Downstream Effects
Conclusion