ML20138H611
| ML20138H611 | |
| Person / Time | |
|---|---|
| Issue date: | 12/31/1996 |
| From: | Architzel R NRC (Affiliation Not Assigned) |
| To: | Matthews D NRC (Affiliation Not Assigned) |
| References | |
| PROJECT-691 NUDOCS 9701060140 | |
| Download: ML20138H611 (12) | |
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NU*.1. EAR REGULATORY COMMISSION WASMNGTON, D.C. 2066dM001
- ,o December 31, 1996
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MEMORANDUM _TO:
David B. Matthews, Chief Generic Issues and Environmental Projects Branch Division of Reactor. Program Management Office of Huclear Reactor Regulation FROM:
Ralph E. Architzel, Section Chief Generic Issues and Environmental Projects Branch.
Office of-Nuclear Reactor Regulation-Division of Reactor Program Management"
SUBJECT:
SUMMARY
OF PUBLIC MEETING HELD TO DISCUSS THE BOILING WATER REACTOR OWNERS' GROUP (BWROG) PROPOSAL ON ELIMINATION OF RECOMBINERS FOR INERTED PLANTS On October 22, 1996, the staff attended a public meeting with representatives of General Electric and certain BWROG licensee representatives. The purpose was to discuss a BWROG proposed position that recombiners are unnecessary for their inerted plants and solicit staff comments and suggestions,regarding a potential effort te prepare a topical report aimed at eliminating the recombiner requirement at those_ plants that have them. A list of attendees and their affiliations is provided as Attachment 1.
A copy of the handouts used by the BWROG in its presentation is provided as' Attachment 2.
j During the meeting, the BWROG and staff discussed whether: the staff would entertain the position, and if so, what technical and regulatory issues the
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topical report must encompass. The staff indicated that the considering that the recombiner requirements of 10 CFR 50.44 were found unnecessary for Generic Letter (GL) 84-09 facilities, there may be a basis for a-similar i
finding that the other inerted plants similarly may not need them. The staff
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suggested that the Group thoroughly review GL 84-09 background documents and determine applicability to their facilities.
Issues to be considered included (1) Part 100 dose consequences, including the dose increment,-with and without.
i recombiners, and (2) the specific requirements of 10CFR50.44 relating to the prohibition against reliance on purge /repressurization'as the primary means of combustible gas control. The staff noted that there appeared to be only two means available to pursue their position; either a rule change or for the
-individual licensee's to request exemptions. The staff noted that although there was reluctance to approve exemptions, versus changing the underlying regulation by revising the rule, this was still a possible approach. The staff recommended that this position and the potential paths to resolution be explored at a future BWROG Senior Management Meeting before significant hb I
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9701060140 961231 PDR PROJ 691 PDR
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resources were expended 'on a part.icular approach. The staff also noted that the BWROG might consider joining with the owners of large dry PWRs to address the recombiner rule if they find their positions are similar and believe that a rule change is warranted..
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Project No. 691' Attachments:
As stated cc w/atts:
See next page.
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,resources.were expended.onia particular approach. The staff also noted that the BWROG.might consider Joining with the owners of large dry PWRs to address the recombiner rule if they find their positions are similar and believe that a, rule change is warranted.
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Proje No.691 4
1 Att'achments: As stated i
ccw/ptts:
See next page 1
DISTRIBUTION:
Hard Cooy Becket/ File PUBLIC PGEB r/f ACRS JHWilson OGC 8
E-Mail FMiraglia AThadani BSheron TMartin RZimmerman GHolahan DMatthews i
CBerlinger WLong i
Document Name: G:\\REA\\ RECOMB.MTG OFC
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NAME RArchitzel:sw CBerlinger DMaYhews DATE 12/N/96 12/10/96 12/'4l/96 OFFICIAL RECORD COPY 1,
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LIST OF ATTENDEES AT NEETING WITH BWROG HELD IN WASHINGTON, DC ON OCTOBER 22, 1996 i
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BWR OWNERS GROUP HYDROGEN RECOMBINER COMMITTEE 4
PRESENTATION TO THE XRC STAFF q
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l JIM SNYDER j
SLPPLY SYSTEM 1
COMMITTEECHAIRMAN i
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BWROG HYDROGEN RECOMBINER COMMITTEE 10/21/%
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COMMITTEE PURPOSE BWR Owners' Group i
Committee formed to eliminate the hydrogen recombiners from Mk I and II BWR inerted
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containments i
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2 BWROG HYDROGEN RECOMBINER COMMITTEE 10/21/96
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MEETING. OBJECTIVE BWR Owners' Group i
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+ Present BWROG plans for eliminating the containment hydrogen recombiners in Mk I i
and II containments i
+ Obtain NRC guidance 4
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3 BWROG HYDROGEN RECOMBINER COMMITTEE 10/21/96 l-
2 PROBLEMS swa owners' croup
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I High Cost for Maintainability
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Limited availability of spares and renewal l
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l perts Long mean time to repair
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BWROG HYDROGEN RECOMBINER COMMITTEE 10/21/%
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SOLUTION BWR Owners' Group s
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+ Elimination of hydrogen recombiners i
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BWROG HYDROGEN RECOMBINER COMMITTEE 10/21/%
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s SCENARIOS TO BE INVESTIGATED
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ELIMINATION OF CONTAINMENT HYDROGEN RECOMBINERS
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l BASIC ACCIDENTSCENARIOS i
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Severe acc' dent during Severe accident during
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Containment not fullyinerted normal power operations normal power operations DBA DBA i
containment fully inerted containment not fullyinerted LOCA before shutdown realistic analyses Containmentinerted realistic analyses after startup 1
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PSA assessment PSA GOTHIC (or similar code) assessment assessment I
Appendix 5 QA plant unique analysis bounding assumptions
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6 GEN RECOMBINER COMMITTEE 10/21/96 i
,BWROG HYDRO
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MEETING RESULT BWR Owners' Group 3
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+ NRC guidance on the elimination of l
containment hydrogen recombiners in-Mk I and II BWR containments i
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7 BWROG HYDROGEN RECOMBINER COMMITTEE 10/21/96 i
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Boiling Water Reactor Owners' Group cc:
C. D. Terry Vice President, Nuclear Engineering Niagara Mohawk Power Corporation Nine Mile Point-2 PO Box 63 Lycoming, NY 13093 D. B. Fetters PECO Energy Nuclear Group Headquarters MC 62C-3 965 Chesterbrook Blvd.
Wayne, PA 19087 R. A..Pinelli.i GPU Nuclear 1 MCC Building E One Upper Pond Road Parsippany,cNJ 07054.
..S. J.' Stark..
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- GE Nucl.e,ar Energy.
-175 Curtner Ave, M/C 165 San Jose,;CA ;95125,
$'h.J.Rausch's B
Commonwealth Edis'on Compan'y*
/ Nuclear Fuel Services-1400 Opus-Place, 4th Floo'r ETWIII Downers Grove, IL '60515 f
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