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> Thermo-Hydraulic Phenomena Subcommittee Meeting
ADVISORY COMMITTEE ON REACTOR SAFEGUARDS
THERMAL-HYDRAULIC PHENOMENA SUBCOMMITTEE MEETING:
DRESDEN/QUAD CITIES NUCLEAR POWER STATION UPRATE REQUEST
OCTOBER 25-26, 2001
ROCKVILLE, MARYLAND
PRESENTATION SCHEDULE
| Contact: |
P. Boehnert (301/415-8065)
(pab2@nrc.gov) |
October 25, 2001
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TOPIC
| SPEAKER
| TIME
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| I. |
Opening Remarks |
G. Wallis, Chairman, |
1:00 p.m. |
| II. |
Dresden/Quad Cities Power Uprates |
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A. Exelon Presentations
(Open/Closed?) |
Exelon/GE Nuclear Energy |
1:15 p.m. |
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1. Introduction
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2. Plant Changes to Accommodate Power Uprate(1) |
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3. Compliance with Regulatory Requirements |
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- Hardware Modifications
- Analyses Performed
- Impact on Plant Margins |
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4. Review Issues: |
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- Plant Operator Training/Operator Action Times
- Stability Monitor/Instability Avoidance
- ATWS Event Response for Uprate Conditions
- Fuel response for ATWS/Power Excursions
- Material Degradation Issues (e.g.,IASCC/FAC)
- Impact on Containment Response/Load Limits
- Piping Stress Limit
- Inspection Program
- Impact of Uprate on Steam Separator/Dryer System |
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5. ECCS Analyses |
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- Results |
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6. Resolution of Open Issues |
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- NPSH Requirements
- Ultimate Heat Sink
- ATWS Audit
- Transient Tests |
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7. PRA Analysis |
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- Analyses Performed/Results (CDF LERF, CDFs & LERFs, Associated Uncertainties(2))
- Evaluation of Missing PRA Elements(3)(e.g., fire, seismic, shutdown risk) |
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8. Concluding Remarks |
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| III. |
Recess |
|
6:00 p.m. |
| October 26, 2001 |
| IV. |
Reconvene |
G. Wallis, Chairman |
8:30 a.m. |
| V. |
Dresden/Quad Cities Uprate (Cont.) |
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B. NRR Presentations (Open) |
NRR |
8:40 a.m. |
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1. Introduction |
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-Staff Evaluation
-Response to Duane Arnold Review |
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2. NRR SER Results/Response to ACRS Questions |
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- Key Staff Review Issues/Review Results
- Audits of Licensee's Code Calculations
- Evaluation of Containment Response
- Evaluation of ATWS Response
- Material Degradation Issues
- Impact on Plant Margins
- PRA Analyses/Evaluation Of Licensee's PRA
Examinations |
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3. Open Issues |
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4. Concluding Remarks |
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C. Subcommittee Caucus (Open) |
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12:00 p.m. |
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1. Comments on Meeting Presentations |
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2. Follow-on Actions
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3. Decision to Bring Review to ACRS |
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| VI. |
Adjourn |
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12:30 p.m. |
1. For discussion items 2-7, note differences in plant designs as necessary.
2. If uncertainty evaluations not performed, provide a qualitative discussion of this matter.
3. If quantitative analyses not available, provide rigorous qualitative arguments.
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