ML101650245
| ML101650245 | |
| Person / Time | |
|---|---|
| Site: | Diablo Canyon  |
| Issue date: | 06/07/2010 |
| From: | Lin A PWR Owners Group |
| To: | Office of Nuclear Reactor Regulation |
| Gall J, NRR/DSS/SRXB 301-415-3253 | |
| Shared Package | |
| ML101650192 | List: |
| References | |
| GL-08-001 | |
| Download: ML101650245 (5) | |
Text
{{#Wiki_filter:GL 2008 GL 2008--01 Resolution 01 Resolution Projected Out Look Projected Out Look Anderson Lin Anderson Lin PWROG Technical Lead PWROG Technical Lead Diablo Canyon Power Plant Diablo Canyon Power Plant
GL 2008 GL 2008--01 Resolution Projected Out Look 01 Resolution Projected Out Look Void Transport (Purdue Test) - 7/31/10 Water Hammer, Void in RCS, PIRT, Operability Flow Chart TSTF Submittal - 6/30 Guidance Based on RAIs Training Models (Op, Engg, Maintenance) Roadmap Project (2010) (Pump Void Acceptance Criteria)
- 1. Industry Webcast - 6/17
- 2. Survey Distribution - 6/25
- 3. Survey Completion - 7/27
- 4. Expert Panel - 8/25 & 26
- 5. Possible Completion - 12/31 NEI 09-10 Revision 1 - December 2010 Simplified Equation - 8/16
- 1. Dynamic Venting
- 2. Leakage Characterization
- 3. Training
- 4. System / Operation Modes
- 5. Surveillance Frequency
- 6. Void Measurement
Guidance Based on RAIs Guidance Based on RAIs Topic Topic Where / Plan to Address Where / Plan to Address Dynamic Venting Dynamic Venting Gas Transport Report Gas Transport Report Pump Void Acceptance Pump Void Acceptance Criteria Criteria Simplified Equation / Roadmap Simplified Equation / Roadmap Leakage Characterization Leakage Characterization NEI 09 NEI 09--10 Rev. 1 10 Rev. 1 SI Flow Delay Due to Gas SI Flow Delay Due to Gas Voids Voids NEI 09 NEI 09--10 Rev. 1 10 Rev. 1 OG OG--08 08--293 293 / BWROG / BWROG--09034 09034 PUMP PUMP NPSHr NPSHr APC letter / GSI APC letter / GSI--191 191 Training Training INPO INPO
Guidance Based on RAIs ( Guidance Based on RAIs (cont cont)) Topic Topic Where / Plan to Address Where / Plan to Address System / Operation Modes System / Operation Modes NEI 09 NEI 09--10, Rev. 1 10, Rev. 1 Surveillance Frequency Surveillance Frequency NEI 09 NEI 09--10, Rev. 1 10, Rev. 1 Void Measurement Void Measurement NEI 09 NEI 09--10, Rev. 1 10, Rev. 1 Vortex Vortex WCAP WCAP--11916 on Mid 11916 on Mid--Loop Loop Physical Pump Monitoring Physical Pump Monitoring NEI 09 NEI 09--10, Rev. 1 10, Rev. 1 TSTF TSTF
Possible Possible Dynamic Venting Guidance Dynamic Venting Guidance Flush Out Most of Gas Pockets Flush Out Most of Gas Pockets T = T = * ( V
- ( V--system / Q )
system / Q ) Where Where T
- The minimum time required to flush out voids
- The minimum time required to flush out voids V-system : Downstream system water volume system : Downstream system water volume Q
- Dynamic flow rate
- Dynamic flow rate
- Number of sweeps
- Number of sweeps of system as of system as function function of Fr.
of Fr. No credit for dynamic venting for Fr less than 0.8 No credit for dynamic venting for Fr less than 0.8
= 20 for 0.8
= 20 for 0.8 << Fr < 1.0 Fr < 1.0
= 10 for 1.0
= 10 for 1.0 << Fr < 1.2 Fr < 1.2
= 5 for 1.2
= 5 for 1.2 << Fr < 1.5 Fr < 1.5
= 3 for 1.5
= 3 for 1.5 << Fr < 2.0 Fr < 2.0
= 2 for 2.0
= 2 for 2.0 << Fr Fr}}