ML20155C724

Summary of 880321 Meeting W/Util in Rockville,Md Re Attenuation of Jets from high-energy Line Breaks.Meeting Notice,List of Attendees & Handouts on Jet Impingement Loadings Encl

ML20155C724
Person / Time
Site:	Comanche Peak
Issue date:	09/30/1988
From:	Malloy M NRC OFFICE OF SPECIAL PROJECTS
To:	NRC OFFICE OF SPECIAL PROJECTS
References
RTR-NUREG-CR-2913 NUDOCS 8810100198
Download: ML20155C724 (27)

Text

{{#Wiki_filter:m g9 >8 "oglo t UNITED STATES ~g NUCLEAR REGULATORY COMMISSION g g ,w,HING TON, D. C. 20555 2 o; \\ / SEP 3 0 !988 Docket Nos. 50-445 and 50-446 APPLICANT: Texas Utilities Electric Company (TV Electric) FACILITY: Comanche Peak Steam Electric Station (CPSES), Units 1 ano 2

SUMMARY

OF MEETING ON MARCH 21, 1988 - DEVELOPMENT AND ATTENUATION OF JETS FROM HIGH-ENERGY LINE BREAKS The staff and applicant met previously on February 5,1988 to discuss staff comments on Ebasco calculation CPC-SI-CA-000-645 Revision 0 for evaluating the attenuation of jets from high-energy line breaks at the CPSES.* The subject was reviewed by the staff during inspection of the systems inter-action portion of the CPSES Corrective Action Program and as documented in NRC Inspection Report 50-445/87-37,50-446/87-28 dated February 8,1988, the staff raised several technical concerns regarding misinterpretation of terms and limitations in the theory being used to calculate jet attenuation. During the February 5,1988 meeting, the applicant committed to provide the staff with justification for the attenuation factors employed in the analysis ) of single-phase steam jets and two-phase flashing water jets. The applicant subsequently informed the staff by letter from W. G. Counsil to NRC dated February 18, 1988 (TXX-88227), that it was performing analyses to demonstrate the conservatism of the attenuation factors being used for the CPSES. On March 21, 1988, NRC staff and its contractor met with representatives of TV Electric in Rockville, Maryland to continue discussions on this n.atter. The meeting notice and list of attendees are provided as Enclosures 1 and 2, respectively, to this meeting sumary. I TV Electric and its contractor for systems interaction, Ebasco, wanted to get the staf f's impression as to whether the analyses (to demonstrate that the jet attenuation factors being used at the CPSES are conservative) are headed in the right direction. Ebasco explained that its analyses are using an approximate method, based on NUREG/CR-2913. "Two-Phase Jet Loads" (1983), which extends beyond the physical and thermodynamic region of NUREG/CR-2913. (Enclosure 3 provides the applicant's handouts used during tnis discussion.) The staff and applicant discussed the fact that Working Draf t 7 (1987) of ANS-58.2, "Design Basis for Protection of Light Water Nuclear Power Plants Against Effects of Pipa Rupture," endorsed the NUREG/CR-2913 method for steam and flashing water jets where initial fluid conditions are between 870-2466 psia and with subcooling no more than 126*F. Although some minor changes to the draft standard are expected before it is finalized, the staff indicated that it would review a methodology based on the draft.

• 5ee "5umary of Meeting on February 5,1988 - Development and Attenuation of Jets From High-Energy Line Breaks," dated March 17, 1988.

fo/ j 9810100190 080933 'I { PDR ADOCK 05000445 A PNV

s g. SEP 3 01938 TU Electric The applicant agreed to revise its jet modeling methodology using Draft 7 of ANS 58.2, submit corresponding FSAR changes to NRC for review, and reverify its analyses of all CPSES jets using the revised methodology. In the interim, the applicant agreed te provide the staff a description of the methodology to be used to validate all oreviously calculated jet loads and how any differences will be resolved. original signed by: Melinda Malloy, Project Marager Comanche Peak Project Division Office of Special Projects

Enclosures:

1. Meeting Notice 2. List of Attendees 3. TV Electric Handouts on det Impingement Loadings cc: See next page Distribution: Docket File NRC PDR Local PDR OSP Reading CPPD Reading JPartlow CGrimes PMcKee JLyons JHWilson RWarnick MMalloy DNorkin S.NHou i l BLiaw GArlotto OGC.WF DCrutchfield EJordan RGrimes ACRS(10) 0FC

PPD : 05 B___-t AD: CP PD : 05P :

..c.<;.....:.............:............:............:............:...........:........... .....:............:......9d.g) NAME Malloy: sam :JHWilso DATE :9/14/88

9/b/88 0FFICIAL RECORD COPY

~ ^ j ~ } s SEP 3 01988 W. G. Counsil Comanche Peak Steam Electric Station Texas Utilities Electric Company Units I and 2 cc: Jack R. Newman, Esq. Asst. Director for Inspec. Programs Newman & Holtzinger, P.C. Comanche Peak Project Division Suite 1000 U.S. Nuclear Regulatory Comission L 1615 L Street, N.W. P. O. Rox 1029 Washington, D.C. 20036 Granbury, Texas 76048 Pobert A. Wooldridge, Esq. Regional Administrator, Region IV Worsham, Forsythe, Sampels & U.S. Nuclear Regulatory Comission Wooldridge 611 Pyan Plaza Drive Suite 1000 2001 Bryan Tower, Euite 2500 Arlington, Texas 76011_ Oallas, Texas 75201 Lanny A. Sinkin Mr. Homer C. Schmidt Christic Institute Director of Nuclear Services 1324 North Capitol Street Texas Utilities Electric Company Washington, D.C. 20002 Skyway Tower 400 North Olive Street, L.B. 81 Ms. Billie Pirner Garde Esq. Dallas, Texas 75201 Government Accountability Project Midwest Office Mr. R. W. Ackley 104 East Wisconsin Avenue Stone & Webster Appleton, Wisconsin 54911 Comanche Peak Steam Electric Station P. O. Box 1002 David R. Pigott, Esq. Glen Rose, Texas 76043 Orrick, Herrington & Sutcliffe 600 Montgomery Street Mr. J. L. Vota San Francisco, California 94111 Westinghouse Electric Corporation P. O. Box 355 Anthony Z. Roisman, Esq. Pittsburgh, Pennsylvania 15230 Suite 600 1401 New York Avenue, NW Susan M. Theisen Washington, D.C. 20005 l i Assistant Attorney General Environrental Protection Division Robert Jablon P. O. Box 12548 Capitol Station Bonnie S. Blair l i Austin, Texas 78711-1548 Spiegel & McDiarmid 1350 New York Avenue, NW l Mrs. Juanita Ellis, President Washington, D.C. 20005-4798 Citizens Association for Sound Energy l 1426 Scuth Polk George A. Parker, Chairman Dallas, Texas 75?24 Public Utility Comittee j Senior Citizens Alliance Of Fs. Nancy H. Williams Tarrant County, Inc. CYGNA Energy Services 6048 Wonder Orive 2121 N. California Blvd., Suite 390 Fort Worth, Texas 76133 Walnut Creek, CA 94596

3 SEP 3 01938 W. G. Counsil Comanche Peak Electric Station Texas Utilities Electric Company Units 1 and 2 cc: Joseph F. Fulbright Fulbright & Jaworski 1301 McKinney Street Houston, Texas 77010 Roger D. Walker Manager, Nuclear Licensing Texas Utilities Electric Company Skyway Tower 400 North Olive Street, L.B. 81 Dallas, Texas 75201 Texas Utilities Electric Company c/o Bethesda Licensing 3 Metro Center, Suite 610 Bethesda, Maryland 20814 William A. Burchette, Esq. Counsel for Tex-La Electric Cooperative of Texas Heron, Burchette, Ruckert & Rothwell Suite 700 1025 Thomas Jefferson Street, NW Washington, D.C. 20007 GOS ASSOCIATES, INC. Suite 720 1850 Parkway Place Marietta, Georgia 30067-8237

COMANCHE PEAK PROJECT 4 JET IMPINGEMENT LOADINGS i G

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0 METHODOLOGY i 0 USES APPROXIMATE METHOD BASED ON NUREG 2913 0 METHOD EXTENDS BEYOND PHYSICAL & THERMODYNAMIC REGION OF NUREG 2913 O METHOD IS APPLIED TO BOTH SUBCOOLED (FLASHING TWO PHASE) AND STEAM (APPROX. SINGLE PHASE) JETS ) 4

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U PROC 8 DURE (1) HEM CRITICAL FLOW MODEL TO CALCULATE 4 EXIT CONDITIONS: P, V,Hg,Sg g j (2) ISENTROPlc EXPANSION FROM P TO P2 3 (3) Voa " V + Via, Via = R ADI AL VELOCITY (1) 1 ISENTROPIC EXPANSION l V' f, 0 = EXPANSION ANGLE

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U t i 1 i l ) i k PROCEDURE (CONT'D) { t J l f (5b), WATER WITH SUBCOOLED STAGNATION CONDITIONS: ) (h D2 I4,l c < Z l(3b) l l(PV)2 =(~PV)1 < l , 1,-(0'! ['1 '(2 e ~ ~ N, _g t WHERE $ = 14 5.lb f, C = SONIC SPEED 3 D 2C3-FOR D',< Z X L, FOLLOW HEM CHOKE FLOW CONDITION C I e i s I i l d i c i 1 I 6 i I e I i

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U l -l .7----.--...---..x,.- i. t s .;9... e... s... ~ m.....-.----.--~..y------.-.....,_ ..)... t I CENTERLINE IMPINGEMENT ISTAGNATION) PRESSURE !FOR SUBCOOLEDJET j 10.0 9.0 l s.o _'7.0 .i r* - 7.O ur. . CALCULA.TED VALUE T = 255 'C o 0.0 5.0 e .b 0 ~ I ao t-2.0 C. a'. w D t1 s 1.0 0,9 si 2 01 w b t 3 0,7 m. og N l / -' ~ %s.wn I j ~ j 03 N i g f \\ / N 03 q' 4 4 0.2 0.1 9 i 1 I 'l I I I i

• ' I ' i

.l. 2 3 4' 5 6 7.8 91q 15 20 30 40 50 '60 70 8090.1Q2 UD a 3 I

u \\ IMPINGEMENT PLATE PRESSURE DISTRIBUTION j ) N Po = 7.0 MPa H E-i CALCULATED VALUE {, _. EXPERIMENTAL DATA. (REF. 3) 1 0 To = 255 0 6 5 E E e", E ^4 s w 4 \\ s c \\ a. 7 g \\ W \\ h3 h \\ L/D = 1! \\

3 N

L/D = 1 N 2 N N N N 1 @- - - - %m -g L/D = 3 y j t 9(p 0 1i 21 3i R/D i 1

v ._._m._ 1 Y.= 3. 4 M Pa o s.o.

• 3 0 'l<

h \\ \\.18-110 i h.14 [ \\1 \\.12 t 2 \\. - i.10 \\ I 2 .s i / \\ / ' m, l.ca \\ \\ / \\.o's % 'N/..' i.'04 L i; bo2 1 1 I i i I t i I I I l p 4 10.5 11.0 '11.5 12.0 12.5 3.0 ',3.5 '4.0 14.5 '5.0 iL/D d 5 F }' CALCULATED PER NUREG/CR.2913 CH APTER 6 --- MEASURED PER C. FOREST, K.S. SHIN ET AL. 3

l. \\ A I l4.0 I l3.6 i t

Po l

}3.2 t-P4 lE l E{2.8 W CC !D M i 2.4 \\w.'cc n. O+ \\ 2.0 I' < J ing i 1.6 i< ,o i \\1.2 j \\.8 e i ~ l.4 lp 4 i i i i i _t i i y ' 3.0 )55 14.0 \\ 4.5 15.0 l0,5 l 1.0 ,L1.5

2.0

2.5 1 L/D PRESSURE VARIATION ALON THE CENTER LINE OF A TWO PHASE JET 0

t (P = 3.4 MPa, A T SUBCOOL = 30 K) o 4 r

U VARIATION OF CENTRAL IMPINGEMENT / PRESSURE FOR STEAM JET / 1.0;- O II 0.5' r2{ E D$ j Q.:b' 0.1 s: I E O [ 0.05 A $n s' LNT RA NCE ' 4 Po W Pa) EOGE / 2'{ @ APPROX. MODEL (Po = 4.02 MPaf, R=5 J go Zi 0.01,- 4.02 6 3.04 m ( 1 06 A! M la x l l l l 0.5' 1 '; 5j 10 {. 50l 100t NORMALIZED IMPlNGEMENT DIST ANCE __~__r. ,._,,_,-__,_--__.______.,.____-.m

U .,,,..,y,w-VARIATION OF CEN. TRAL IMPlNGEMENT. PRESSURE FOR STEAM JET 1.0' J \\ 0.5 m WW D d'I W e C. i H 0.1, 0-a \\ 0; ~ A 0.05 e e i O \\ 3 l w l 4 .Po (MPa) LOGE E N T R ArvCE ' 3 g R*5 ol 0.01, 2 O APPROX. MODEL (Po =Qp6MPa) 4 02 e s.c4 m IC6 A' l '[_- 1 i i i i 1 0.5' 1' 5' 10t 50 100-NORMAllZED IMPING EMENT DISTANCE

~U ] h ) vee a cre rwn <> o a uso Ar cm i Y h N WCC*r M < < 7' /,tG (A, ,7 I s 1 4 I

• JP'en w je f

\\ ,s s s I N,s s N. ,4 p y 7' ' - - N ~, 1 y - ~ ~ g l i oI i [ Zo gy o sT7f'*)ff JW YS h o i i Oe v

• i

\\ I l \\ 'C l \\ r/ast.. 6 /~ ,, W 7 9 Nf*s. ..r \\ s\\\\', '*~ j s ~ * . g. g 204 N Of Ned Ah*d4 i .29 e t b, 4 - - - - - - - - + _ _. _ ..s_y 9I le sO Ja .f, i 9 fl a su. w C w a rr n J e r,< 1

E STATIC JET F0RCES ( KIPS ) .t ,i [ CASES T T T Site Personnel I (2913+58.2(0)) (alis 58.2(0)) [2913+58.2(10] (AfiS 58.2(14)] TARGETS L/D j .i i. l At 2.6087 2o9 g 477,7 2 o 1.5 477,7 222.877 i A2 4.7896 49,4 f 4 7, p 49,4 , 4,,,,, 80.193 A3 11.144 3 y.,4 f 3 c,3 f,2 a r. g 39.555 R = 213 C Ps t 4 s T,q = 0

I]

H 1

2 KS/af/3/18/88 t

1 l I

r .. ~. 9 i 4 m 4 j 4 N 9 d N D' is { II 9 s e = w 4< se s m 9 ~ 1 ,$ Q M ir 9 y I 1 I w ii co N q) 2 M kM M m' 5 l-s s u ) s 9 x+ n N .I Q b w N 4 b 4 r l 9 l r ao i N I J i N Tb N a Y v ) h 4 4 i 9 oo N 14 4 M % 94 m i m = I*,i 2, d S D M' i ,,,ii,, ii,i s i, ,, s D kb 4 i f ~4 P <p "p e w s i I 1 l

I i REFERENCES I I

1. NUREG / CR - 2913, REV. 0 2.ANS/ ANSI 58.2 1980.

3."MEASUREMENTS OF IMPACT LOADS AND EXPANSION OF FLASHING WATER JETS", NUCLEAR ENGINEERING AND DESIGN 99(1987)53-61, BY FORREST, AND SHIN, ET.AL. 4."EXPERIMENTAL STUDY ON AN IMPINGEMENT HIGH PRESURE STEAM JET", F. MASUDA, ET.AL., NUCLEAR ENGINEERING AND DESIGN 67(1981),273-286. 1 4 5."EXPERIMENTAL STUDY OF FIPE REACTION FORCE AND JET IMPlNGEMENT LOAD AT THE PIPE BREAK", K. KITADE, ET.AL, INTERNATIONAL CONF. ON STRUCTURAL MECHANICS IN REACTOR TECHOLOGY, BERLIN, GERMANY, AUG 1979. 6.ANS/ ANSI 58.2, WORKING DRAFT REV7, AUG 1987. [ 7, f. l.ot's Er slL., ExPcemsnrsit. Ac 7nortncsL.17vpigs ad (, sxis www,c. ut.e vers ; esca,ra.<m e,e.s 19n ~ i l ) l 1

.a 4 .pm n%'; UNITED STATES / ' *, )' i.- NUCLEAR REGULATORY COMMISSION 3 g l A ASHINGTON. 0 C 20555 ,l $,' M / March 16,1988 Occket Nos. 50-445 and 50-446 I MEMORANDUM FOR: Christopher 1. Grimes, Director l l Comanche Peak Project Division Office of Special Projects l I THRU: James H. Wilson, Assistant Director for Projects Comanche Peak Project Division Office of Special Projects 4 } FROM: Melinda Malloy, Project Manager Comanche Peak Project Division Office of Special Projects

SUBJECT:

FORTHCOMING MEETING WITH TV ELECTRIC t Date & Time: Monday, March 21, 1988 11:30 am Location: One White Flint North 11555 Rockvi;1e Pike Room 108 13 j Rockville, MD 20855 s

Purpose:

For Applicant and Staff to continue j discussions on development and attenuation i of jets frorr high-energy line breaks [ t Participants *: NRC Applicant [*Norkin D. Wes't ( J. Lyons R. Walker, et al. M. Malloy l S. Hou l K. K. Niyogi ( ltant) j ) f t' /# 6 / aL/, M LAa/.*M-' i f M[indaMa'i'loy, roject ltiflager j Comanche Peak Project Diki'sion t Office of Special Projects i i cc: See next page I CONTACTS: Melinda Malloy or James H. Wilsru ) (301)492-0738 (301)492-3306 j l i

• Meetings between NRC tecnnical staff ano applicants for licenses are open j

for interested members of the public, petitioners, intervenors, or other j parties to attend as observers pursuant to "Open Meetings and Statement of t NRC Staff Policy," 43 Federal Regis'.er 28058, 6/28/78, r u.l>l> I 1 --..,ai ww.,ii i

U 3 + W. G. Counsil Comanche' Peak Steam Electric Station l Texas Utilities Electric Company Units 1 and 2 cc: i Jack R. Ne man, Esq. ..... Asst. Director for Inspec. Programs Newman & Holtzinger, P.C. Comanche Peak Project Division Suite 1000 U.S. Nuclear Regulatory Comission 1615 L Street, N.W. P. O. Box 1029 i Washington, D.C. 20036 Granbury, Texas 76048 Robert A. Wooldridge, Esq. Regional Administrator, Region IV Worsham, Forsythe, Sampels & U.S. Nuclear Regulatory Comission Wooloridge 611 Ryan Plaza Drive, Suite 1000 2001 Bryan Tower Suite 2500 Arlington, Texas 76011 Dallas, Texas 75201 Lanny A. Sinkin Mr. Homer C. Schmidt Christic Institute Director of Nuclear Services 1324 North Capitol Street Texas utilities Electric Company Washington 0.C. 20002 Skyway Tower l 400 North Olive Street, L.B. 81 Ms. Billie Pirner Garde, Esq. Dallas, Texas 75201 Government Accountability Project Midwest Office Mr. Robert E. Ballard, Jr. 104 East Wisconsin Avenue Director of Projects Appleton, Wisconsin 54911 Gibbs and Hill, Inc. 11 Penn Plaza New York, New York 10001 David R. Pigott, Esq. Orrick, Herrington & Sutcliffe 600 Montgomery Street l Mr. R. S. Howard San Francisco, California 94111 [ Westinghouse Electric Corporation l P. O. Box 355 Anthony Z. Roisman, Esq. ? Pittsburgh, Pennsylvania 15230 Suite 600 1401 New York Avenue, hW l Renea Hicks. Esq. Washington, D.C. 20005 i Assistant Attorney General l Environmental Protection Division Robert Jablon P. O. Box 12548 Capitol Station Ronnie S. Blair Austin, Texas 78711 Spiegel & McDismid 1350 New York Avenue, NW Mrs. Juanita Ellis, President Washington. 0.C 'C005-4/98 Citizens Association for Sound Energy 1426 South Polk George A. Parker, Chaiman Callas, Texas 75224 Public Utility Comittee Senior Citizers Alliance Of Ms. Nancy H. Williams Tarrant County, (nc. CYGNA Energy Services tC48 Wonder Drive 2121 N. California Blvd., 5uite 390 Fort Wcrth Texas 76133 Walnut Creek, CA 94596

U l ) i l W. G. Counsil Ccmanche Peak Electric Station Texas Utilities Electric Company Units 1 and 2 4 cc: Joseph F. Fulbright i Fulbright & Jaworski 1301 McKinney Street 4 Houston, Texas 77010 t I Roger D. Walker i .i Manager, Nuclear Licensing Texas Utilities Electric Corrpany i Skyway Tower 400 North Olive Street, L.B. 81 i Dallas, Texas 75201 j Mr. Jack Redding c/o Bethesda Licensing Texas Utilities Electric Company 3 Metro Center Suite 610 Sethesda, Maryland 20814 William A. Burchette. Esq. } Counsel for Tex-La Electric Cooperative i of Texas j Heron, Burchette, Ruckert & Rothwell i j Suite 700 t i 1025 Thomas Jefferson Street, NW ) Washington 0.C. 20007 GOS ASSOCIATES, INC. I Suite 720 1850 Parkway Place I Marietta, Georgia 30067-8237 i l Administrative Judge Peter Bloch U.S. huclear Regulatory Comission l Washington, D.C. 20555 Elizabeth 8. Johnson i Acministrative Judge t Oak Ridge National Laboratory P. O. Box X. Building 3500 Oak Ridge, Tennessee 37830 Dr. Kenneth A. McColicm 1107 West Knapp Stillwater, Oklahema 74075 I Cr. Walter H. Jordan 881 West Guter Drive Oak Ridge, TN 37830

U 1 4 l e' Encicsure 2 l i NRC/TU ELECTRIC NEETING ON DEVELOPl4CNT AND ATTEht>ATION OF JETS Farch 21, 1988 ATTENDEES Name Affiliation C. b n <[ f] :1f& 0'3/ l C PYi) D G Jf Lyo/5 5,./ ,.yj) )Y Of Am 2 ?. ' }$ s s 4,~ b - f *~ l % s 15,.. : a. 'i:. n Q !; '

• T?'!

5; }, l4 sd O ? ** ' f,. D.v.eI A V!!aA 7,3 g g,, j,., q hl/ t Q M k+ '* O U-7lf ygp I /.,) '?Gb6/,? S. LED 5'0llGCC - 6.:'P Y $ ltnt-110- h.m H e 6./ o m / N R Sfl Wiaw c2/cp;;) Joc.c L ec ec ru ara-; s l l l l i .}}