ML20207Q696

Notification of 870115 Meeting W/Technical Experts in Washington,Dc to Discuss Parameters W/Significant Role in Pipe Failure & Development of Generic Guidance to Predict & Mitigate erosion-corrosion Piping Damage Effects

ML20207Q696
Person / Time
Site:	Surry
Issue date:	01/09/1987
From:	Bosnak R Office of Nuclear Reactor Regulation
To:	Speis T Office of Nuclear Reactor Regulation
Shared Package
ML18150A013	List: ML20204G707 ML20204G724 ML20204G738 ML20204J362 ML20204J416 ML20205B005 ML20207Q696
References
NUDOCS 8702060204
Download: ML20207Q696 (3)

Text

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ENCLOSUP,E

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UNITED STATES NUCLEAR REGULATORY COMMISSION y 'se g w AsMiNo ton, D. C. 20555 r, j JAN 9 27 MEMORANDUM FOR: Themis P. Speis, Director -

Division of Safety Review and Oversight ,,

FROM: Robert J. Bosnak, Chief Engineering Issues Branch Division of Safety Review and Oversight

SUBJECT:

TECHNICAL MEETING TO DISCUSS GENERIC IMPLICATIONS OF THE SURRY FEEDWATER LINE FAILURE DATE AND TIME: January 15, 1987 10:00 A.M. - 4:00 P.M.

~ LOCATION: Room 1046 1717 H Street, NW .'

Washington, DC PURPOSE: A meeting of technical experts to discuss: (1) the important parameters believed to have had a significant role in the Surry pipe failure and (2) the development of generic guidance to predict and mitigate the effects of piping damage due to flow assisted corrosion (erosion-corrosion), erosion or cavitation.

PARTICIPANTS

- Technical Experts NRC Staff and Staff Consultants D. Lancers TE5 L. Shao A. Herat E. Branch, S&L M. Vagins W. Ross

~

E. Rodabaugh, ECR A. Tabnada V. Panciera P. Griffith, MIT G. Weidenhamer R. Baer R. Keck, MIT W. Haz:titon R. Woodruff S. Bush, Review & Synthesis E. Sullivan L. Rubenstein

0. Jonas, Jonas Inc D. Terao C. Patel R. Johnson J. Weeks, BNL E. Igne C. Czajkowski, BNL Other Attendees Who May Participate R. Jones, EPRI D. Mcdonald, National Board B&PV Inspectors B. CheMal, EPRI E. Gerwin, Chairman, B31 Comittee W. Mikesell, Chairman, R. Eaker, Duke Power Co.

ASME B&PY Comittee C. Wolfe, Westinghouse Electric H. Miller et al VA Power Ro t J. Bosnak, Chief Engineering Issues Branch Division of Safety Review and Oversight

Enclosure:

Meeting Agenda i

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I I I

TECHNICAL MEETING TO DISCUSS GENERIC IMPLICATIONS.0F '

THE SURRY FEEDWATER LINE FAILURE -

JANUARY 15, 1987 MEETING AGENDA I. Factors Affecting Piping Damage - (Erosion, erosion-corrosion, cavitation)

1. Piping Design - Discussion of the consideration normally given by system designers to erosion, erosion-corrosion, cavitation, fluid phase, fluid flow velocity ano turbulence, and relatec characteristics.

Operating experience in plant applications, i.e., steam extraction lines, turbine cross over lines, drains. feedwater lines. Discussion of leak before break in systems subject to erosion or erosion .

corrosion.

Landers, Breach, Rodabaugh -

2. Fluid dynamics - Effect of system flow characteristics on piping dama ge. Piping configurations (geometry), and fluid concitions identified with increased susceptibility to piping damage.

P. Griffith, R. Keck

3. Piping Material - Effects of erosion, erosion-corrosion and cavitation on material. Identification of phenomena producing damage. Material selection criteria to resist damage.

S. Bush

4. Water Chemistry - LWR cycle water chemistry effects (including pH and oxygen content) on piping corrosion. Effect of water purity,

, contaminants, and Water chemistry control. Water treatment " -

system optimization."

0. Jonas II. Detection of Piping Damage Non Destructive Examination Techniques S. H. Bush III. Predictive and Preventive Measures to Minimize Damage Mechanisms

1) " Prediction and Mitigation of Erosive-Corrusive Wear in Steam Extraction Lines," Thesis by R. Keck

2) Discussion by Panel Members IV. Suenary i

Distribution V. Stello H. Denton R. Vollner J. Taylor  !

E. Beckjord R. Fraley --

C. Heltemes P. Shewmon, ACRS G. Arlotto T. Novak F. Miraglia R. Bernero C. Rossi D. Crutchfield C. McCracken R. Ballard L. Marsh B. Liaw J. Richardson -

C. Serpan J. P. Durr', R I J. J. Harrison, R III T. Westerman, R IV R. Pate, R Y 4

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