ML032320394
| ML032320394 | |
| Person / Time | |
|---|---|
| Site: | Nine Mile Point, Boiling Water Reactor Owners Group  |
| Issue date: | 09/09/2003 |
| From: | Wang A NRC/NRR/DLPM/LPD4 |
| To: | Stephen Dembek NRC/NRR/DLPM/LPD4 |
| Wang A, NRR/DLPM, 415-1445 | |
| Shared Package | |
| ML032320424 | List: |
| References | |
| Download: ML032320394 (5) | |
Text
September 9, 2003 MEMORANDUM TO: Stephen Dembek, Chief, Section 2 Project Directorate IV Division of Licensing Project Management Office of Nuclear Reactor Regulation FROM:
Alan B. Wang, Project Manager, Section 2
/RA/
Project Directorate IV Division of Licensing Project Management Office of Nuclear Reactor Regulation
SUBJECT:
SUMMARY
OF MEETING WITH THE BOILING WATER REACTOR OWNERS GROUP (BWROG) CONCERNING THE DEVELOPMENT OF A NEW REACTOR CORE STABILITY LIMIT On August 15, 2003, an open meeting was held between the BWROG and the NRC staff to discuss the BWROG efforts to develop a new reactor core stability limit. The new stability limit was to provide the best basis for the final resolution of this issue with the class of boiling water reactors (BWR) referred to as the "detect and suppress" (D&S) plants. In June 2001, GE Nuclear Energy (GENE) reported that generic delta I versus oscillation magnitude (DIVOM) curves could be non-conservative. This resulted in a 10 CFR Part 21 notification. Individual plants implemented corrective actions as a result and the BWROG D&S Committee was formed to develop a new generic DIVOM correlation.
Mike May opened the meeting with a short description of the Nine Mile Point 2 instability event.
His main point was that Nine Mile had an instability event and the operating power range monitor (OPRM) scrammed the reactor as designed. The staff had several questions including:
(1) where was the plant in the power flow map, (2) what would have happened at a plant without an operable OPRM, and (3) were the oscillations core wide or regional? Mr. May noted that the licensee is still analyzing the event and these questions need to be answered at a later meeting.
Mr. May provided a background of the stability effort. He noted that based on several considerations, the BWROG has decided that the best alternative is development of plant-specific DIVOM curves. Mr. Wermiel of the NRC staff noted that this has always been an option to the industry. He stated that a response to the Part 21 notification still needed to be made. In addition, he wanted a letter from the BWROG providing a plan from industry to resolve this issue. Mr. May noted that the BWROG can only make recommendations to its members. He noted that the BWROG needs to digest what was said today to determine their next actions, but he understands what Mr. Wermiel is looking for. He agreed to let the NRC staff know their course of action within 2 weeks. Mr. Wermiel stated that this issue has been unresolved too long and agrees that a resolution finally looks in hand.
S. Dembek The staff thanked the BWROG for the presentation. This meeting was informational. No regulatory decisions were made. An attendance list is attached. The meeting handouts can be found in ADAMS under Accession No. ML032330211.
Project No. 691
Attachment:
Meeting Attendees cc w/att: See next page
ML032320394 NRC-001 OFFICE PDIV-2/PM PDIV-2/LA SRXB PDIV-2/SC NAME AWang EPeyton FMAkstulewicz for JWermiel SDembek DATE 9/3/03 9/3/03 9/5/03 9/8/03 DOCUMENT NAME: G:\\PDIV-2\\bwrog\\8-15-03bwrogstabilitymtingsumary.wpd
MEETING WITH THE BOILING WATER REACTORS OWNERS GROUP DEVELOPMENT OF A NEW REACTOR CORE STABILITY LIMIT AUGUST 15, 2003 GE NUCLEAR ENERGY D. Newkirk R. Hill I. Nir OTHER D. Raleigh (LIS, Scientech)
B. Gitnick (ISL)
K. Putnam (Chairman, BWROG)
J. Head (Entergy)
B. Myers (Detroit Edison)
M. May (Exelon)
D. Pruitt (Framatome)
S. Bier (PSE&G)
B. Harris (Westinghouse)
J. Fisher (Energy Northwest)
NRC J. Wermiel F. Akstulewicz S. Dembek A. Wang S. Lu G. Thomas Z. Abdullahi A. Attard E. Kendrick T. Huang U. Shoop P. Clifford H. Scott S. Bajorek M. Langschwager R. Guzman
BWR Owners Group Project No. 691 cc:
Mr. Joseph E. Conen Vice Chairman, BWR Owners Group DTE Energy - Fermi 2 200 TAC 6400 N. Dixie Highway Newport, MI 48166 Mr. J. A. Gray, Jr.
Regulatory Response Group Chairman BWR Owners Group Entergy Nuclear Northeast 440 Hamilton Avenue Mail Stop 12C White Plains, NY 10601-5029 Mr. H. Lewis Sumner Southern Nuclear Company 40 Inverness Center Parkway P.O. Box 1295 Birmingham, AL 35242 Mr. Carl D. Terry Vice President, Nuclear Engineering Nine Mile Point - Station OPS Building/2nd Floor P.O. Box 63 Lycoming, NY 13093 Mr. Thomas G. Hurst GE Nuclear Energy M/C 782 175 Curtner Avenue San Jose, CA 95125 Mr. Thomas A. Green GE Nuclear Energy M/C 782 175 Curtner Avenue San Jose, CA 95125 Mr. James Meister Exelon Cornerstone II at Cantera 4300 Winfield Road Warrenville, IL 60555 Mr. William A. Eaton ENTERGY Grand Gulf Nuclear Station P.O. Box 756 Port Gibson, MS 39150 Mr. Mark Reddeman Vice President Engineering Point Beach Nuclear Plant 6610 Nuclear Road Two Rivers, WI 54241 Mr. Richard Libra DTE Energy Fermi 2 M/C 280 OBA 6400 North Dixie Highway Newport, MI 48166 Mr. James F. Klapproth GE Nuclear Energy M/C 706 175 Curtner Avenue San Jose, CA 95125 Mr. Kenneth Putnam, Chairman BWR Owners Group Nuclear Management Company Duane Arnold Energy Center 3277 DAEC Road Palo, IA 52324