ML20210F418
| ML20210F418 | |
| Person / Time | |
|---|---|
| Issue date: | 07/26/1999 |
| From: | Tatum J NRC (Affiliation Not Assigned) |
| To: | Hannon J NRC (Affiliation Not Assigned) |
| References | |
| PROJECT-689 GL-96-06, NUDOCS 9907300133 | |
| Download: ML20210F418 (9) | |
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j j NUCLEAR REGULATORY COMMISSION
" t WASHINGTON, D.C. 20066 0001 4.,,, July 26,1999 MEMORANDUM TO: John N. Hannon, Chief Plant Systems Branc,.
Division of Systems Safety and Analysis THRU: George T. Hubbard, Jr., Chief Balance of Plant Section -
Plant Systems Branch Division of Systems Safety and Analysis FROM: James E. Tatum h Balance of Plant Se tio Plant Systems Branch j Division of Systems Safety and Analysis '
SUBJECT:
SUMMARY
OF THE JULY 13 - 14,1999, MEETING BETWEEN THE NRC STAFF AND INDUSTRY REPRESENTATIVES AT ALTRAN CORPORATION IN BOSTON, MASSACHUSETTS TO DISCUSS THE l INDUSTRY INITIATIVE TO ADDRESS THE GL 96-06 WATERHAMMER ISSUE George Hubbard and Jim Tatum of DSSA/SPLB, Al Serkiz of RES, and Hossein Nourbakhsh (an NRC contractor) attended a meeting at Altran Corporation in Boston, Massachusetts on !
July 13 and 14,1990, to discuss progress that has been made by industry participants on an ongoing initiative to address the GL 96-06 waterhammer issue. The discusdon focused on
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l i EPRl's Project No. 669 - EPRI interim Report " Resolution of Generic Letter 96-06 l Waterhammer Issues," dated July 1999. Dr. Fred Moody, Dr. Benjamin Wylie, and Dr. Peter i Griffith, who coli :ctively represent the industry's expert panel for this initiative, were also present at the meeting. A list of the attendees is included as Attachment 1 and the meeting agenda is
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included as Attachment 2. ,
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The purpose of this industry initiative is to develop a Technical Basis Report (TBR) that can be /(0 Y '
used by licensees to address NRC's Request for Additional Information (RAI) related to GL 96-06, and to also provide a method for evaluating waterhammer loads in low pressure fluid systems (such as the cooling water systems for conta:r. ment fan coolers). It is the industry's judgement that existing methods (i.e., those provided in NUREG/CR-5220) will over-predict waterhammer loads for low-pressure applications, and that a less conservative methodology could result in substantial savings to the industry. The staff met initially with industry ,
representatives to discuss the TBR development plan on December 10,1998, and attended l subsequent status meetings that were held in February and April,1999. -
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3 The interaction between the NRC staff and industry representatives went extremely well during the two-day meeting, and the NRC participants continue to be encouraged by the industry's efforts on this initiative.
Attachments: As stated 9
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~. f MEETING PARTICIPANTS Name Affiliation A. Singh Electric Power Research Institute B.Kemp Wisconsin Electric Power Company H. Chang New York Power Authority L. Rochino Rochester Gas and Electric Corporation D. Riat Consumers Energy M. Aulik Wisconsin Public Service Corporation D. Ray Southern Nuclear Operating Company B. Hammersley Fauske and Associates, incorporated T. Brown Duke Energy G. Hubbard Nuclear Regulatory Commission J. Tatum Nuclear Regulatory Commission H. Nourbakhsh NRC Consultant A. Serkiz Nuclear Regulatory Commission B. Wylie University of Michigan P. Griffith Massachusetts Institute of Technology i F. Moody General Electric Corporation l A. Ginsberg Consolidated Edison Company H. Fish New York Power Authority G. Zyst Altran Corporation M. Zweigle Altran Corporation T. Esselman Altran Corporation V. Wagoner Carolina Power and Light Company T. Conner Baltimore Gas and Electric Company S. Thomas Northem States Power Company S. Ashworth .Southem Nuclear Operating Company M. Husaini Southern California Edison Company I
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,[4% 9 1 UNITED STATES j
e NUCl. EAR REGULATORY COMMISSION WASHINGTON, D.C. 20066-0001
't;,. * . , e ,o July 26,1999 MEMORANDUM TO: John N. Hannon, Chief P; ant Systems Branch j Division of Systems Safety and Analysis THRU: George T. Hubbard, Jr., Chief q
Balance of Plant Section Plant Systems Branch Division of Systems Safety and Analysis FROM- James E. Tatum A Balance of Plant Se tio I Plant Systems Branch Division of Systems Safety and Analysis j
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SUBJECT:
SUMMARY
OF THE JULY 13 - 14,1999, MEETING BETWEEN THE i NRC STAFF AND INDUSTRY REPRESENTATIVES AT ALTRAN CORPORATION IN BOSTON, MASSACHUSETTS TO DISCUSS THE INDUSTRY INITIATIVE TO ADDRESS THE GL 96-06 WATERHAMMER I ISSUE I George Hubbard and Jim Tatum of DSSA/SPLB, Al Serkiz of RES, and Hossein Nourbakhsh l (an NRC contractor) attended a meeting at Altran Corporation in Boston, Massachusetts on I July 13 and 14,1999, to discuss progress that has been made by industry participants on an ongoing initiative to address the GL 96-06 waterhammer issue. The discussion focused on EPRI's Project No. 669 - EPRI interim Report " Resolution of Generic Letter 96-06 Waterhammer issues," dated July 1999. Dr. Fred Moody, Dr. Benjamin Wylie, and Dr. Petar )
Griffith, who collectively represent the industry's expert panel for this initiative, were also present at the meeting. A list of the attendees is included as Attachment 1 and the meeting agenda is
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included as Attachment 2. i
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The purpose of this industry initiative is to develop a Technical Basis Report (TBR) that can be 40 9 -j used by licensees to address NRC's Request for Additional information (RAl) related to
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GL 96-06, and to also provide a method for evaluating waterhammer loads in low pressure fluid l
systems (such as the cooling water systems for containment fan coolers). It is the industry's judgement that existing methods (i.e., those provided in NUREG/CR-5220) will over-predict waterhammer loads for low-pressure applications, and that a less conservative methodology could result in substantial savings to the industry. The staff met initially with industry representatives to discuss the TBR development plan on December 10,1998, and attended subsequent status meetings that were held in February and Apn!,1999. - -
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EPRl's July 1999 Interim Draft Report, which is labeled "EPRI Proprietary," was presented by Attran Corporation staff, who also discussed the various sections of this report. Altran addressed questions and comments raised by industry participants, the expert panel, and the NRC staff. While additional work is needed to finalize the TBR, the NRC participants found the report to be very well organized and informative. EPRI plans to submit the final version of the TBR for endorsement by the NRC as an approved method for addressing the GL 96-06 waterhammer issue. The NRC participants were very pleased with the progress that has been made in developing the TBR, and offered the following comments: 1 I
- Additional focus and insight may be gained by revisiting and updating the Phenomena l Identification and Ranking (PIRT) Table. {
- Development of a " road map" and example waterhammer problems (includog both open loop and closed loop cooling water systems) would make the TBR more useful by illustrating how to apply the methodology. Licensees may also find training sessions to be very helpfulin this regard.
- The TBR should be clear on what the assumptions, ! imitations, and restrictions are in applying the proposed methodology.
- In certain scenarios (e.g., Haddam Neck), the containment air coolers may act as steam generators when cooling water flow is reestablished. The expanding steam acting on fluid in a long, horizontal p:pe may result in a relatively severe waterhammer, and this scenario should also be addressed in the TBR.
- Additional discussion and explanation is needed on how the amount of air is quantified for column closure waterhammer scenarios, including conservatisms that exist relative to this aspect of the analysis.
- For future use and reference, the data that has been gathered and presented in the TBR should include the error band that goes with the data (if it is not otherwise explained or captured by the data points).
- The TBR is being developed to assist licensees in responding to a representative request for additional information (RAl) related to the waterhammer issue identified in GL 96-06.
When completed, Table 6.6 of the TBR will provide a cross-reference and summary of how the representative RAI questions are addressed by the TBR. When Table 6.6 is completed, it may be prudent to submit it to the NRC participants for review and comment before finalizing the TBR.
- Review of the TBR by the expert panel members is a very important part of this initiative, and endorsement of the TBR by the expert panel, including any reservations that the individual panel members may have, should be included.
- Although the initial schedule called for the TBR to be completed in July,1999, it would be preferable to extend the schedule (if necessary) in order to maintain the high quality that has been established as the TBR is finalized.
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The interaction between the NRC staff and industry representatives went extremely well during the two-day meeting, and the NRC participants continue to be encouraged by the industry's efforts on this initiative.
Attachments: As stated 1
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Attachm:nt 1 -
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MEETING PARTICIPANTS Name Affiliation A. Singh Electric Power Research Institute B.Kemp Wisconsin Electric Power Company H. Chang Now York Power Authority L. Rochino Rochester Gas and Electric Corporation D.Riat Consumers Energy M. Aulik Wisconsin Public Service Corporation D. Ray Southern Nuclear Operating Company B. Hammersley Fauske and Associates, incorporated T. Brown Duke Energy G. Hubbard Nuclear Regulatory Commission J. Tatum Nuclear Regulatory Commission H. Nourbakhsh NRC Consultant A. Serkiz Nuclear Regulatory Commission B. Wylie University of Michigan P. Griffith Massachusetts Institute of Technology F. Moody General Electric Corporation A. Ginsberg Consolidated Edison Company H. Fish New York Power Authority G. Zyst Altran Corporation M. Zweigle Altran Corporation T. Esselman Altran Corporation V. Wagoner Carolina Power and Light Company T. Conner Baltimore Gas and Electric Company S. Thomas Northern States Power Company S. Ashworth . Southern Nuclear Operating Company M. Husaini Southem California Edison Company
Attachment 2 N-Agenda for the Fourth Meeting of the Waterhammer Expert Panet First Day,7/13/99 Time Topic Presenter 9:30 AM Introduction and Objectives of the Project and Vaughn Wagoner Expert Panel- Update 9:45 A M Overall Comments and Sugaested Review Process? Expert Pand 10:00 AM Overview of TBR Draft- How to review? Toen Essehnan 10:15 A M Introductory Sections of TBR (Sections I through 5 Tom Esselman and Section 7) 11:00 AM Technical Appinach and Scope including PIRT, Tom Esselman Certainty Analysis, and Plan (Section 6) 12:00 Noon Lunch 1:00 PM Witness Condensation Induced Waterhammer Altran (CIWH) Test (Section 8) Laboratories 2:00 PM CIWH Test Results (Section 8) Greg Zysk 3:00 PM Break 3:15 PM Review CIWH Conclusions (Section 8) Greg Zysk 3:45 PM Review of CCWH Test Results (Section 9) Bob Henry 4:30 PM Review of CCWH Test Reruits (Section 9) Greg Zysk 5:30 PM Adjourn l l
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Agenda for the Fourth Meeting of the Waterhammer Expert Panel i Second Day,7/14/99 Time Topic 8:00 AM Utility Caucus Utilities 9:00 AM CCWH Analysis- Methods and Results (Section 9) Matt Zweigle 10:00 AM CCWH Plant Application (Section 9) Matt Zweigle .
10:45 AM Barak 11:00 AM CCWH Plant Application (cont.) and CCWH Matt Zweigle Conclusions (Section 9 and Section 12) Bob Henry 11:30 A M Pulse Propagation, Attenuation and Amplification Matt Zweigle (Section 10) 12:00 Noon Lunch 1:00 PM Pulse P wpagation (Section 10) and Conclusions Matt Zweigle (Section 12) 1:30 PM SuppervComponent Reactions Section (11) and Tom Esselman l Conclusions (Section 12) 2:30 PM Barak 2:45 PM Caucus All 3:30 PM Discussion and Comments All 4:15 PM Summary / Upcoming Work Plan Review / Meeting A. Singh/V.
Schedule Wagoner 4:30 PM Adjourn
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The interaction between the NRC staff and industry representatives went extremely well during the two-day meeting. and the NRC participants continue to be encouraged by the industry's efforts on this initiative.
Attachments: As stated
- DISTRIBUTION:
Hard Coov SPLB R/F Central File PDR OGC ACRS JTatum E-Mail (w/o Attachment 2
- SCollins/RZimmerman r)
BSheron #
GHolahan/TCollinst JStrosnider/RWessman/
KManoly /
CHammer/ )
JHannon SMagruder /
GHubbard/
, BWetzel/
ASerkiz /
DOCUMENT NAME: A:\Mtgmin2.wpd SPLB:DSSA SPLB:DSSA 1
JTatum:b GTHubbard i 7//4'/99 7M/99 -
OFFICIAL RECORD COPY 4-t a
4 i
1 f, f 3 .
j The interaction between the NRC staff and industry representatives went extremely well during f the two-day meeting, and the NRC participants continue to be encouraged by the industry's l l efforts on this initiative.
]
Attachments: As stated DISTRIBUTION:
Hard Coov SPLB R/F Central File PDR OGC ACRS j JTatum '
.E-Mail (w/o Attachment 2)
SCollins/RZimmerman r BSheron #
GHolahan/TCollins/ l JStrosnider/RWessman/ '
KManoly /
CHammer/
JHannon SMagruder / -
GHubbard/
BWetzel/
ASerkiz /
DOCUMENT NAME: A:\Mtgmin2.wpd SPLG:DSSA SPLB:DSSA JTatum:by GTHubbard 7/s!&/99 7M/99 OFFICIAL RECORD COPY
N,j Nuclear Energy Institute Project No. 689 cc: (w/o Attachment 2)
Mr. Ralph Beedle Ms. Lynnette Hendricks, Director Senior Vice President Plant Support and Chief Nuclear Officer Nuclear Energy Institute Nuclear Energy institute Suite 400 Suite 400 - 1776 i Street, NW 1776 i Street, NW Washington, DC 20006-3708 Washington, DC 20006-3708 Mr. Alex Marion, Director Mr. Charles B. Brinkman, Director Programs Washington Operations Nuclear Energy Institute - ABB-Combustion Engineering,Inc.
Suite 400 12300 Twinbrook Parkway, Suite 330 1776 i Street, NW Rockville, Maryland 20852 Washington, DC 20006-3708 Mr. David Modeen, Director ,
Engineering Nuclear Energy institute Suite 400 1776 i Street, NW Washington, DC 20006-3708 Mr. Anthony Pietrangelo, Director Licensing Nuclear Energy institute Suite 400 1776 l Street, NW Washington, DC 20006-3708 Mr. Nicholas J. Liparulo, Manager Nuclear Safety and Regulatory Activities Nuclear and Advanced Technology Division Westinghouse Electric Corporation P.O. Box 355 Pittsburgh, Pennsylvania 15230 i Mr. Jim Davis, Director Operations 4 Nuclear Energy Institute Suite 400 1776 l Street, NW
'Nashington, DC 20006-3708