NRC 2007-0081, Proposed Schedule for Reanalysis of the Emergency Core Cooling System Evaluation Model
| ML072570301 | |
| Person / Time | |
|---|---|
| Site: | Point Beach  |
| Issue date: | 09/14/2007 |
| From: | Koehl D Nuclear Management Co |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| NRC 2007-0081 | |
| Download: ML072570301 (1) | |
Text
Point Beach Nuclear Plant Committed to Nuclear Excellence Operated by Nuclear Management Company, LLC September 14,2007 NRC 2007-0081 10 CFR 50.46 U.S. Nuclear Regulatory Commission AlTN: Document Control Desk Washington, DC 20555 Point Beach Nuclear Plant Units 1 and 2 Docket Nos. 50-266 and 50-301 Renewed License Nos. DPR-24 and DPR-27 Pro~osed Schedule for Reanalysis of the Emergency Core Cooling Svstem Evaluation Model
Reference:
(1) NMC to NRC Letter dated July 3, 2007, (NRC 2007-0055), Error Identified in ECCS Evaluation Model 30-Day Report Required by 10 CFR 50.46 (ML071860067)
Nuclear Management Company, LLC (NMC), is submitting a reanalysis schedule as stated in NMC's letter to the NRC (Reference 1) regarding the Emergency Core Cooling System (ECCS)
Evaluation Model.
The ECCS Evaluation Model for Point Beach Nuclear Plants (PBNP) Units 1 and 2 is being reanalyzed for the PBNP Thermal Power Uprate Project to support a license amendment request for a proposed 17% Extended Power Uprate (EPU) for PBNP Units 1 and 2. The reanalysis will be using the Westinghouse NOTRUMP methodology for small break Loss of Coolant Accident (LOCA) analyses and the Westinghouse ASTRUM methodology for the large break LOCA analyses. A separate large break analysis will be performed for each PBNP reactor unit because of the minor differences in the design of the steam generators between the units.
The small break and large break LOCA analyses are scheduled to be completed in 4Q08. The EPU License Amendment Request will contain the results of the small break and large break LOCA analyses. The EPU license amendment request is scheduled to be submitted in 1 Q09.
and no revisions to existing commitments.
Site Vice-President, Point Beach Nuclear Plant Nuclear Management Company, LLC cc:
Administrator, Region Ill, USNRC Project Manager, Point Beach Nuclear Plant, USNRC Resident Inspector, Point Beach Nuclear Plant, USNRC PSCW 6610 Nuclear Road Two Rivers, Wisconsin 54241-9516 Telephone: 920.755.2321