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ACRS Thermo-Hydraulic Phenomena Subcommittee Meeting - September 26-27, 2001

ADVISORY COMMITTEE ON REACTOR SAFEGUARDS
THERMAL-HYDRAULIC PHENOMENA SUBCOMMITTEE MEETING:
DUANE ARNOLD ENERGY CENTER POWER UPRATE REQUEST,
SEPTEMBER 26-27, 2001
ROCKVILLE, MARYLAND

PRESENTATION SCHEDULE

Contact:

P. Boehnert (301/415-8065)
("pab2@nrc.gov")

September 26, 2001

	TOPIC		PRESENTER	TIME
I.	Opening Remarks		G. Wallis, Chairman, D. Powers, ACRS Cognizant Member	1:00 p.m.
II.	Duane Arnold Power Uprate
	A. NMC Presentations (Open/Closed?)		NMC/GE Nuclear Energy	1:15 p.m.
		1. Introduction
		2. Plant Changes to Accommodate Power Uprate
		3. Compliance with Regulatory Requirements
		- Hardware Modifications - Analyses Performed - Impact on Plant Margins
		4. Response to ACRS Questions:
		- Plant Operator Training - Stability Monitor/Instability Avoidance - ATWS Event Response for Uprate Conditions - Fuel response for ATWS/Power Excursions - Material Degradation Issues - Impact on Containment Drywell/Wetwell Temperature Limits - Impact of Uprate on Steam Separator/Dryer System
		5. ECCS Analyses
		- Methodology - Results
		6. PRA Analyses
		- Analyses Performed/Results (CDF LERF, CDFs & LERFs, Associated Uncertainties⁽¹⁾) - Evaluation of Missing PRA Elements⁽²⁾ (e.g., fire, seismic, shutdown risk)
		7. Resolution of Open Issues
		8. Concluding Remarks
III.	Recess			5:00 p.m.
September 27, 2001
IV.	Reconvene		D. Powers, ACRS Cognizant Member	8:30 a.m.
V.	Duane Arnold Power Uprate (Cont.)
	B. NRR Presentations (Open)		NRR	8:40 a.m.
		1. Introduction
		2. NRR SER Results/Response to ACRS Questions
		- PRA Analyses/Evaluation Of Licensee's PRA Examinations - Audits of Licensee's Code Calculations - Evaluation of ATWS Response - Material Degradation Issues - Impact on Plant Margins
		3. Open Issues
		4. Concluding Remarks
	C. Subcommittee Caucus (Open)			11:45 a.m.
		1. Comments on Meeting Presentations
		2. Follow-on Actions
		3. Decision to Bring Review to ACRS
VI.	Adjourn			12:00 p.m.

^1. If uncertainty evaluations not performed, provide a qualitative discussion of this matter.

^2. If quantitative analyses not available, provide rigorous qualitative arguments.

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