ML100360357
| ML100360357 | |
| Person / Time | |
|---|---|
| Site: | Grand Gulf  |
| Issue date: | 02/18/2010 |
| From: | Davant G Entergy Operations |
| To: | Lyon C Plant Licensing Branch IV |
| Lyon, C F, NRR/DLPM, 415-2296 | |
| Shared Package | |
| ML100360312 | List: |
| References | |
| TAC ME3254 | |
| Download: ML100360357 (24) | |
Text
Extended Power Uprate Impact on Steam Dryer NRC Meeting February 18, 2010 Grand Gulf Nuclear Station
2 Agenda:
Replacement Dryer Decision Analysis Overview of PBLE Analysis GGNS Reg Guide1.20 Rev.3 Assessment Valid Prototype GGNS vs. Valid Prototype Replacement Dryer Design Attributes Power Ascension Plan Schedule Summary Discussion and Feedback
3 Replacement Dryer Decision Analysis Kepner-Tregoe Decision Analysis indicated the Replacement Dryer as the best option
- Minimizes critical path impact, radiological impact, probability for industrial safety issues and schedule risk((
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- Maximizes reliability and installation simplicity
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- Meets RG 1.20 Rev.3 Replacement dryer classified as Non-Prototype Category 1 per RG 1.20 Rev.3
- Substantially the same as a specified Valid Prototype that is in current operation
4 OverviewofPBLEAnalysis
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5 Overview of Plant Based Load Evaluation (PBLE) Process:
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6 OverviewofPlantBasedLoadEvaluation (PBLE)Process:
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7 GGNSRegGuide1.20Rev.3Assessment Analysis, Extensive Measurement, and Full Inspection PROTOTYPE Unique or first of a kind Valid Prototype Conditional Prototype Analysis and Either Extensive Measurements or Full Inspection NON-PROTOTYPE CATEGORY I Substantially Similar to Valid Prototype Analysis, Limited Measurements, and Full Inspection NON-PROTOTYPE CATEGORY II Similar to Valid Prototype but some component differences Analysis, Limited Measurements, and Full Inspection NON-PROTOTYPE CATEGORY III Substantially Similar to Conditional Prototype Inservice problems resulting in component or operational modifications Valid Prototype modified Limited Valid Prototype Extended satisfactory inservice operation Analysis and Either Extensive Measurements or Full Inspection NON-PROTOTYPE CATEGORY IV Substantially Similar to Limited Valid Prototype
8 Valid Prototype
- Per RG 1.20 Rev.3
- Valid Prototype A configuration of reactor internals that has successfully completed a comprehensive vibration assessment program for prototype reactor internals and has experienced no adverse in-service vibration phenomena.
- Non-Prototype Category 1 Those configurations that have substantially the same arrangement, design, size, and operating conditions as a specified valid prototype for which nominal differences in arrangement, design, size, and operating conditions have been shown (by test or analysis) to have no significant effect on the vibratory response and excitation of those reactor internals important to safety.
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10 Replacement Dryer Design Attributes
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11 Replacement Dryer Design Attributes
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12 Replacement Dryer Design Attributes
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13 Replacement Dryer Design Attributes
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14 Replacement Dryer Design Attributes
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15 Replacement Dryer Design Attributes
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16 Replacement Dryer Design Attributes
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17 Replacement Dryer Design Attributes
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18 Replacement Dryer Design Attributes
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19 Replacement Dryer Design Attributes
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20 Replacement Dryer Design Attributes
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21 Power Ascension Plan
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22 Schedule Activity TimePeriod ReplacementDryerAnalysis 2nd qtr.2010 DetailedHardwareDesign&FabricationDrawings 4th qtr.2010 FabricationComplete 4th qtr.2011 DeliverReplacementDryertoSite 4th qtr.2011 EPUOutageBegins 1st qtr.2012
23 Summary:
Future meetings...
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24 Discussions and Feedback: