ML20129G674
| ML20129G674 | |
| Person / Time | |
|---|---|
| Site: | 05200003 |
| Issue date: | 10/02/1996 |
| From: | Diane Jackson NRC (Affiliation Not Assigned) |
| To: | Liparulo N WESTINGHOUSE ELECTRIC COMPANY, DIV OF CBS CORP. |
| References | |
| NUDOCS 9610070261 | |
| Download: ML20129G674 (55) | |
Text
. .. _ ._ , _ . _ _
_ . ~ _ _. . . _ . . . _ . . _ . . .
October 2, 1996 s
- . ~
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
SUBJECT:
STAFF UPDATE TO DRAFT SAFETY EVALUATION REPORT (DSER) OPEN ITEMS l REGARDING THE WESTINGHOUSE AP600 ADVANCED REACTOR DESIGN
Dear Mr. Liparulo:
s From the submittal of Revision 9 of Standard Safety Analysis Report (SSAR) and j related information provided by Westinghouse, the status of several open items t
regarding the AP600 design have changed. Enclosed is the staff's open item
- status for the Quality Assurance and Maintenance Branch's review of SSAR 1 Chapter 14 and the Containment Systems and Severe Accident Branch's review of SSAR Section 6.2.1 and Chapter 21.
Please update the open item tracking system database to reflect this informa-l tion. If you have any questions regarding this matter, you can contact me at (301) 415-8548.
Sincerely, original signed by:
Diane T. Jackson, Project Manager Standardization Project Directorate Division of Reactor Program Management Office of Nuclear Reactor Regulation Docket No.52-003
Enclosure:
As stated cc w/ enclosure:
See next page ,
I i
DISTRIBUTION: 3 Docket File PUBLIC PDST R/F TRQuay'.
TMartin TKenyon D U 3'l I BHuffman '
JSebrosky .
DJackson I JMoore, 0-15 B18 WDean, 0-17 G21 ACRS (11)
I MPSiemien, 0-15 B18. .SBlack, 0-9 Al JPeralta, 0-9 Al CBerlinger, 0-8 H7 EThrom, 0-8 H7 NRC FILE CENTER COPY DOCUMENT NAME: A:UPDA-0IS.0CT Ta seesive e espy of this document, indicate in the hen: "C" = Copy wkhout ettechment/encloswo *E' = Copy with attechment/ enclosure *N" = No copy 0FFICE PM:PDST:DRPM % , D:PDST:DRPM l l NAME DJackson:sg &( TQuay @
DATE 10/d W 6 -( ) 10/ v/96 0FFICIAL RECORD COPY 9610070261 961002 PDR ADOCK 05200003 A PDR
- Mr. Nicholas J. Liparulo Docket No.52-003 Westinghouse Electric Corporation AP600 l
cc: Mr. B. A. McIntyre Mr. Ronald Simard, Director Advanced Plant Safety & Licensing Advanced Reactor Programs J Westinghouse Electric Corporation Nuclear Energy Institute '
Energy Systems Business Unit 1776 Eye Street, N.W.
P.O. Box 355 Suite 300 Pittsburgh, PA 15230 Washington, DC 20006-3706 Mr. John C. Butler Ms. Lynn Connor Advanced Plant Safety & Licensing Doc-Search Associates Westinghouse Electric Corporation Post Office Box 34 Energy Systems Business Unit Cabin John, MD 20818 Box 355 Pittsburgh, PA 15230 Mr. James E. Quinn, Projects Manager LMR and SBWR Programs Mr. M. D. Beaumont GE Nuclear Energy Nuclear and Advanced Technology Division 175 Curtner Avenue, M/C 165 Westinghouse Electric Corporation San Jose, CA 95125 One Montrose Metro 11921 Rockville Pike Mr. Robert H. Buchholz Suite 350 GE Nuclear Energy Rockville, MD 20852 175 Curtner Avenue, MC-781 San Jose, CA 95125 Mr. Sterling Franks U.S. Department of Energy Barton Z. Cowan, Esq.
NE-50 Eckert Seamans Cherin & Mellott 19901 Germantown Road 600 Grant Street 42nd Floor Germantown, MD 20874 Pittsburgh, PA 15219 Mr. S. M. Modro Mr. Ed Rodwell, Manager l Nuclear Systems Analysis Technologies PWR Design Certification '
Lockheed Idaho Technologies Company Electric Power Research Institute Post Office Box 1625 3412 Hillview Avenue !
Idaho Falls, ID 83415 Palo Alto, CA 94303 Mr. Frank A. Ross Mr. Charles Thompson, Nuclear Engineer U.S. Department of Energy, NE-42 AP600 Certification Office of LWR Safety and Technology NE-50 19901 Germantown Road 19901 Germantown Road Germantown, MD 20874 Germantown, MD 20874 i
AP600 Open Item Tracking System Database: Executive Summary Date: 10/1/96 Selection: [DSER Section) like 'I4 And [NRC Branch] like 'NRRAIQMB' Sorted by Item f Itent DSER Sectat/ Title /Denmption (W) NRC No. BranA Question Type Status Detail Imt Mod Date status Staans Lamer Nc6 / Ler Date 1243 m iuynb 14.2.8-5 DSEROI 5/1196 Closed Action $ ((
W_ _ _ _ _ shouW inodify preoperatsceal test alstract 14.2.8.l.97 in Appendix 1 A of the SSAR to biclude the ,, 2 r_, of this tasping to subsequeva AP600 plants, or to provide apprepnatejus'ification for this exception to RG 1.68, Agyendix A Item 1.lt(3) lC1osed Resperse provided via Westinghouse letter NSD NRC-96-4800, dated August 13,1996. l 1244 m impnb 14.2.5-6 D5ERol S/t196 Closed ActionW //
Westinghouse should modify preoperational test obstract i4.2.8.1.100 in Appendix 1 A of the SSAR to include the applicabihty of teus testing to w.c AP600 plants, er provide appropnatejustification for this exception to RG I.68, Appeindix A,leem 1.n.(I4Xf)L l Closed - Respome provided via Westinghouse letter NSD NRC 96-4800, dated August 13,1996. l 1245 mingmb 14.2.8-7 DSM OI s/1196 Closed ActionW A[
l Westinghouse should odd additional criteria to startup test abstract 14.2.8.2.34 in Appendrx I A of the SSAR. l l Closed - Response prmided na Westinghouse letter NSD-NRC-96-4800, dated August 13,1996. l 1246 mingmb 14.2.8-8 D5ERol 8r1196 Closed Action 3F ((_
Wntin#iouse should modify startup test abstract 14.2.8.2.38 in Appendix I A of the SSAR to include the applicatslity of this testing to subsequent AP600 plants, or to provide arqwopriatejustification fer this exception to RG I.68, Appendix A Items 5.b and 5.y.
l Closed - Response provuled via Westinghouse letter NSD-NRC-96-4800, dated August 13,1996. l 1247 mhqmb 14.2.8 9 D5EROI 3/13/96 Closed ActionW M Westinghouse should modify startup test abstract 14.2.8.2.41 in Appendix I A of the SSAR to include the apphcainhty of this testing to subsequent AP60ft g or to provide appropriatejustification for this exception to RG 1.68, Appendix A, hem 5.J.J.
l Closed - Response leavided via Westinghouse letter NSD.NRC-96-4800, dated August 13,1996. ]
1248 m4mpnb 14.2.5-10 DSERCI S/1196 Closed Action $ M_
Westinghouse should noodify startup test abstract 14.2.8.2.47 in Appendix I A ofthe SSAR to include the applicability of this testing to subsequent AP600 plants, or to provide appropriatejustifwation for this exception to RG l.68, Appendix A. Item Si l Closed - Response provided via Westinghouse letter NSD-NRC-96 4800, dated August 13,1996. l 1249 misqmb 14.2.8-11 D5EROI W1196 Closed Action 5F bl Westinghouse should rnodify startup test abstract 14.2.8.2.51 in Appendix I A of the SSAR to include the applicability of this testing to subsequere AP600 plants, or to provide appropriatejustifica' ion for this exception to RG l.68, Appendix A,Itern 5.sut l Closed - Response provuled via Westinghouse letter NSD-NRC-96-4800, dated August 13,1996. l 1250 m/lupnb 14.2.8-12 D5EROI 8/1196 Closed ActionF p/_
Wyn should modify startup test abawact 14.2.8.2.52 in Appendix I A of the SSAR to snclude the ,, ' -", ofdois testing to subsequent AP600 plants, or to provide appropriatejustification for this exceptson to RG 1.68, Appendix A,ltem 5.Itit l Closed - Response provided via Westinghouse leuer NSD-NRC-96-4800, dated August 13,1996. l 1251 miupnb I4.2.5-13 DSERot 8/13/96 Closed Actice9 h_
,,, Westinghouse should snodify startup test abstract 14.2.8.2.55 in Appendix I A of the SSAR to heclude die 7 ", aftnia testing to _ ' , " AP600 7 plants, er to provide appropriatejustification for this eaception to RG 1.68, Appendix A, leem 5.LL o
y l Closed- Response provided via W ^ . :letterNSD-NRC-96-4800, dated August 13,1996. l nn 1
Page 2 Total Recordr 82
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AP600 Open Itent Tracking Systent Database: ERecutive Senimary Date: 10/1/96 selecties: [DSER Section] like *14" And [NRC Branch] like 'NRR/HQMEr Scded liy llem f hem DSER Section/ Title / Description (W) NRC Type Status Detail Last Mod Does Status Semens temerNa / IAr Duee No. Branch Q..
1963 miulmb 14121 DSERM 8/1196 Closed Action $ N I4.2.2-l De COL apphcant shreld gmmde for staff review, the scopmg document (i.e, preoperational and startup test .r M_) commenmgtesting 4 Aves and acceftance criteria applicable to Westinghouse % scope ofdesip responsiinlity.
l l thal R.r pnmded via Westinghouse letter NSD-NRC-96 4800, dated August 13,1996.
DSERM s/1196 Closed Action $ p[
1964 nrrimynb 14.2.2-2 t 4.2.2-2 The COL apphcant should pnmde for staff review,the actysng documes, and any related documens,which dehnesse plam operational con &tions at which tests are to be conducted, testing methodologpes to be utilized, specific data to be collected, and accepenble data reduction - - " ,- :to be utilized l Closed - Response pnmded via Westinghouse letter NSD-NRC-96-4800, dated August 13,1996. l DSERCOI, s/1195 Cloerd Action %
1965 m iuynb 14.2.2-3 14.2.2-3 The COL spplicam should provide for staff review,the scopmg document that delinentes any reconcihation methods needed to .ma for test conditions, methods, or resuhs if testing is performed at conditions other than = =r - 44'e of design ep'ratmg condstsant l Closed - Response pnmded via Weste letter NSD-NRC-96-4800, dated August 13,1996. l nrr/hqmb 14.2.2-4 DSER40t, S/W96 Closed Actica$ g/
1966 I4.2.2-4 The COL appheam should provide for staff review,the agyroved preopera6cnal test procedures (to be pnmded approximately 60 days before their intended use, and startup test procedures (to be provided ,,,-_- :,60 dmys before fuelloeding) l Closed- R ,, a pnmded via Westinghouse letter NSD NRC-96-4800, dated August 13,1996. l 1967 nrtinynb 14.2.2.2-1 DSERC0t, sa196 Closed Action 9 N 14.2.2.2-1 The COL spphcant should provide the startup aderunnstrative manual, which will delinense the review, . _ and .,r
- of test results, for staffreview.
l Closed - R+c pnmded via Westinghouse letter NSD-NRC 96-4800, dated August 13,1996. l 1%8 nrr/hqmb 14.2.8 1 DSER40t, V.196 Closed ActionF N ll 4.2.5-1 De COL applicant will prmide the identified inferrnation assocessed wish startup test abseract 14.2.8.2.34. l lrh 8 - R,m provided via Westinghouse letter NSD-NRC-96-4800, dated August 13,1996. , l DSERol50 S/1196 Closed Action $
2035 nrrhqmb I 4.
- 39. InitialTestProgram The NRC is not entsfied wilh the detail and scope ofChageer 14 (Initial Test Program).1he esost esgnsficant issues fa5 isso four casegones.
- Westinghouse has taken the position that thirteen tests have to be perfonned on the first plam only. The NRC semifhave resgaessed further
,ustification rorihis poution.
- The NRC has proposed an addetsonal 36 teses to be perfomsed to fulfill the requiremens afly Guide 1.68 revuson 2.
- The NRC is requestung the Chapter 14 abstracts include a basis for test acceptance criteria or test usehods.
- The NRC r--* a detailed desce of AF600 W not tested in the initial test propant Discussed at 2/9/95 SMM) Meeting estabhshed to discuss Chapter 14 issues.
5/2/95 Status: Meetag held Febnsary 28,1995.
Closed - Response pnmded via Westinghouse letter NSD-NRC-96-4800, dated August 13,1996.
Page: 4 Total Records: 82
AP600 Open Itein Tracking Systesa Database: Executive Susesnery Date: 10/1/96 l Selectlent [DSER 5ectece] like '14*' And (NRC Brusach] like NRR/HQMEr Sorted by llein f a
lasse DOEF %ceien/ Tide /Demmipelast (W) NRC Me. Bramh Quesmen Type Sensus Daemil last Med Duas samous semens immerNo. / IJr Does 3543 NRR/HQMs 14. RAlot Msse Closed Acelen9 M ,
26035 inicial Test Preyam (ITF) Test Abstract 14 2.3.1.25, Reacter Coelant 9yseese (RCS):L ". Test: The f Cnearten should be resised to clearly indicuse dist ifdiere is any endmce ofleek vrishin the hydresessic test boundarise, es leak sinseld be reyesed and egeessed prior to final nurectsen ICiceed-llespenseprovidedviaW ' J :lener NSD-NRC-96 4800,deced August 13,1996. _ l 2544 NRR/HQMB 14. RAlot s/Ings Closed Aceien$ M_
266.36 ITP Test Abstract I4.2.3.1.26. Chilled Water Systent (I) Une ofsystem nomenclueure should be conmuassa. This abstrace and/er SSAR Section 9.2.7, Cereral Chilled Water System of the Standard Safety Analysis Report (SSAR) should be re labeled ~ o,(2)The Olyectne subsection should be revised to include verdicesien cf proper performance of the sweem . - _
J -letterNSD-NRC-96-4800, dated Aupet13,1996.
^
l Closed. Response provided via W- l 1 2345 NRR/HQMB 14. RAICI tes6 Closed Artissi9 M 26037 fTP Test Almaracts I4.2.5.1.26 Chilled Water System and 14.2.8.1.61,Circulseng Waner Symeent llie Test Method and t- , - Cnemen subsecticas of these abstracts should be revised to incorpersee wrificsesen ofintegreerit system testing rapsirensenes at rueed volumreic flour cesuhtunsi, pressure, and temperasure as specdied in the apphcable SSAR secuens. These abstracts sleculd desnonsarsee, as a nunumune,(I) proper opershon of i mistrumesestion and syneem centrais in oil logic - . (2) proper operation of e4 asesor-eyerseed and sirgperused centrol valves, includeg open/ closure cycling and timing, and position subcasar verdication med isolation fianctions (ishen apphcablek (3) proper spermeng condimens (flow, vibration, bearing temperature) of syneem pumps in desip made of operahase, sneluding verificahon of acceremble met younne section head (NPSH) under the enest limiting desi i piflow. " 1._ . and (4) proper opermang conditions and syssem pe4mnence rey =May (desip bases) during oli operational (normal and abnormal) modes. ~
IClosed - Response provided via W J Ietter NSD-NRC-96-4800,deced August 13,1996. l 2346 NRR/HQMB 14. RAI4t M356 Closed Action h 26038 ITF Test Abstract 14.2.5.1.27, Cansmenment Recuculshen Cochng Speem: The Olyectrve =Wien sliculd be revised to incorpersee ,
verification erinseyssed syveese testing resqueesnenes at rueed wdumetne flow - "~ pressure, and tesupersemre as speedied in SSAR Section 9.4.6.
l Closed. Response provided wie W ^ J letter NSD-NRC-96-4800,essed August 13,1996. l 2547 NRR/lfQMB 14. RAI4l 8.'I196 Closed ActionO k 26039 ITP Test Alnh.14.2.8.13d Feedweser Cesarol Syseent The Test Method subsectson should be revised to incorpersee wrdiceben that j mutonistically iratissed valve open/closurs cycling and timing snects die system desip basis regurements.
l Closed. Response provided via W- J _ lesser NSD-NRC 96-4800, dated August 13,1996. l l I4. RAlot s/Inss th=d AceienF M 2548 NRR/HQMB 260.40 ITF Test Abstract 14.2.5.1.40, Reactor Coolant Pengr initel Opersesen: The Test Medios nubeschen a=u pecifythesynesmandpusigt s operamng perusneters to be tusend or snessured IClosed - R.-r- provided via Wese@ lemer NSIMRC-96 4800, doesd August 13,1996. l 2549 NRR/HQMB 14. RAI41 3/I336 Clemed Action %[_
260.41 ITF Test Abstrad 14.2.3.1.41,itencear Coolant System: (I) The Test Medied =a-*= should specify te duen assi perseneeers to be verdied during cesarel systems circustry and synessa valves operamen;(2) The Perfennmace Crueenn =a=*= sh-M specify (i) P criesria for te me. sural paramenen -ad ig ,--tism , for the cankel syuanns and wahu, and (W) P criesria forte head vain syneem apareen
}Clemed Respesee provided via Wesem> leser NSD-NRC-96-4800, dined Ampset 13,1996. l Page: $ Total Recotds. 82
. - -- . - - . _. - _- .. - - _ - . .. . _- - ...- - = --
AP600 Open Iteni Tracking Systene Database: Executive Samniary Datei 10/1/96 selecties: [DSER Section]like'14** And [NRC Branch]like NRR/HQMB' Sorted byllent f Ikva DSER Sectnesef Title'Demenpeson (W) NRC No. Branch Queshen Type gemeum Duenil Isst Mod Dute Simons sessus I.muerNo. I tar Duas 2550 NRR/HQMB 14. ItAlot M196 Closed Actien9 M ,
260.42 ITF Test Abstract 14.2.5.1.42, Nonnel Resiemel Heat Removal Syssent The Test Medend ed-re-ea=dd specify die nunctional empuruneues, paranweers to be snessural, and does to be reconled for each test oljective and each niede croperuhest lClased . Rescanse provuled via Westmghouse leuer NSD-NRC-96-4800, deced August 13,1996. l 2351 NRR'HQMB I4. RAIG M196 Cleoed ActionW N 260.43 ITP Tess Abswect 14.2.8.1.49.Thennel Expansion: Westinghouse shouW revise Weis abstract to pnmde a - that fais test will be conducted in accordance widi the Aniencen Society of Mechamcel Engineers (ASME) OM Simndeed, Part 7 (ReE: Dran Safety Evoluessau Report (DSER) Conrummeory Item 3.9.2.1-3).
lClemed . Response provided via W ^ J letterNSD-NRC-96-4800, dated August 13,1996. l RAla M196 thd Action 9 M 2352 NRR/HQMB 14.
260.44 I1? Test Abuerect i4.2.8.1.64.Reacter Coolms Syneem flow Measuremen: (1)The Olsective subsechen shouW be noodined to include ve irication ofproper opershon of the RCS se conditions approachmg resed opershng temperseure and pressure. Basehne RCS pressure drops will also need to be estab!ahed,(2) The Test Method subsection needs to be meddied to include closer coenhnahen ofr the 4. .. - of this test wish that of 14.2.8.I.41 Reacter Coolant System,in order to - . , dernonstrate geoper inneyssed synesen respense and opernhast (3) The Perfansmice Cntens subsection needs to be revised to include acceptance criterie for the RCS pressure drop, flow ruse (accounhng for measuresuent uncertmauty allowancesl er provide ederence to the appropnote SSAR sectuum dehnesting such acceptance einerieu ,
lClemed - Response provuled via W .
- letter NSD-NRC-96-4800, deced August 13,1996. l
?$53 NRR/HQMB 14. RAICI M196 Cleerd Action W h 260.45 ITP Test Abstract 14.2.8.1.67, Reacter CoolariSystem Het Functional Test- (I)1he Obrecem subsection should outime all preoperational tests that will be performed (or--- -- , 2) as part ofdiis test, and (2)In response to request for addasonal wiformahon (RAI) 210.59 Westeghcese agreed to unplement a morutoring propam at the first AP600 plant to record ._m.-. A_ thennel * , and edier pertueent parameters of the geessuruer surge line for verifying assumphors used in the surge line therrnal stratificahen analyuss, Therefore, die ' , _ of this nionitoring program should be reflected in this abstract ane'er in another section of the ITP, accordingly In addition DSER Open Item 3.12.5.10-1 requests identificatie of other piping syneems susceptible to thennel sershncaban, and a description of the rnethods used to assure their structural meegrity. If a snorutonng program is intended to be V- -
--_? by W J _ dureg the het functionni test for resolving this open item, the propam shouW also be included in the ITP.
l Closed . Response provided via Weshngliouse letter NSD-NRC-96-4900, dated August 13,1996. l 2554 NRR/HQMB 14. RA14l 8/n 96 Closed Action S h i 260.46 ITP Test Abstract 14.2.8.1.75, Boric Acid Beechmg Operation: W- J : should clanfy ulunher the test is to be perfernied with er wahout heric acist l Closed-ReaperseluovidedviaW - J - lesser NSD-NRC-96-4800, deced August 13,1996. l 2555 NRR/HQMB 14. RAICI 8/I196 Closed Action W 260.47 ITF Test Abstract I4.2.8.1.9L Startup Feedwseer Conwel Syneem: (1)The Otgechve subsechen shouhl be revised to hicorpersee venficahon of she startup feedwater conwel synesen mutamatic inihahen capabsbty, and (2) The Test Method = deen shocW be revised to saysire venncshon of the automatic imbshan of the startup feedweser conomi syneern upon receipt ofe less ofmanin feedweser supply sipint l Closed. Response provided via W J letter NSD-NRC-96-4800,duasd Amput 13,1996. l Page: 6 Total Records- 82
AP600 Open Itent Tracking Systen Datebese: Executive Senumery Date: 10/1/96 Selection: [DSER Section] like 'l4* And (NRC Branch] like HRRMQhGY Sorted ty iteen f Ihen D8ER Section/ Tirle/Desmyt,an (W) NRC gemeen geseus tamar Net I th Dane No. Branch Questian Type Samens Daemil last Med Duas RAlot Mws Cleesd Acelen9 N 2554 NRR/HQMB 14.
260.48 ITP Test Ateerect i4.2.8.l.93, Reester Cesseuunse structural benytty Test: be the '1hfar*ve d==ehm Gee sonster commuunant bankhng should be change 3 to seector eenemsnment veemet.
} Closed . Response provsded via W _
- leuer NSD-NRC96-4900,dueed August 13,1996. l 2557 NRR/HQMB 14. RAl4t Mwe Closed Action G 260.49 ITP Test Alueracts I4.2.8.l.96, Passive Contauunem Cechng System and 14.2.8.I.97, Passive Centeaunem Coolag System (Fu' st Plant Onlyr These test abstracts should be snoddied to encampens the Obrectm of1418.l.97 ireo a single cornprehesumve trit abstract based upon 14.2.8.l.96. Such ebneract would then be apphcable to all planes, not just the prototype.
l Closed - Response pnmded via W ." __ letter NSD-NRC-96-4800, deced August 13,1996. l
- 14. 8Al-01 e/ Ins Closed ActionF p/
2558 NRR/HQMB 260.50 ITF Test Abstset 14.2.8.2.1, Initial Fuel teedmg Test Segmence: (1) The 7... , subsecesan of this absmart sluishi- (i) include the Otjectives in I 4.2.8.2.2, Initial Fuel Imedme, and in 14.2.8.2.3, Fuel imeding 7 . , and Pmodse Oneckedr, and (ii)euthne eII syneems required for the initial lisel Icedeg;(2)The perforruance crieeria for 14.2.812 and i4.2.8.2.3 should be included un the Performance Qiteria ambarction of this abstract l Closed - Response primded via Westinghouse gener NSD-NRC96-4800, deced August 13,1996. l RAI-0I s/tm Clemed Action 9 N 2559 NRRafQMB 14.
260.51 Westinghouse should revise the following AP600 SSAR Chapter li test alueracts in order to provide specific acceyamace crieena er design basis funcesanal mynrensenes traceaMe to the apprepnate SSAR sections-
- m. I4.2.8.1.40 Reactor Coolant Pump Initial Operatsen b.14.2.8.1.42, Normal Residual Heat Removal Systern
- c. I418.2.11. Rod Drcp Tiene Memmumnem d.1418.2.32. Bank Worth Measurement e.14.2.8.2.55, Plam Trip froen 100 Percent Power l Closed - Response pnmded via Westinghouse letter NSD-NRC-96-4800, deced August 13,1996. _
l 2560 NRR/IlQMB 14. RAlot 3/lW Clemed Action WN 260.52 ITP Test Abstracts 14.2.812. Initial Fuel leedmg. and I 4.2.8.2.3, Fuel imedag 7._ _ and Pmodic Oneskoffi The obpectives of these two tests appears to be redundant WestW should smalgamate them with 14.2.8.2.1.
l Closed - Response pnmded via Westeghouse Iener NSD-NRC-96 4800, deced August 13,1996. ]
- 14. RAI-01 8/tw6 Closed Action F p/
2561 NRRalQMB 260.53 frP Test Absenet 14.2.8.2.4, Peacter Systein Samping for Fuel Imedung Veedicance of the requeenmuss se the Obpectrue of this abstract shouldbeincludrainite,- ,
l Closed. Response pnmded via W .
_ leaner NSD-NRC-96-4800, doesd August 13,1996. l 2562 14. RAlot allm Closed ActionP p/
NRR/HQMB 260.54 ITF Test Abueract 1418.2.6,leverse Ceum Race Ratio Mesutonug for Fuellendag- The regurseneses in te 7. , - . Tea Method and 7# . - Cneena sabeectsens do not appear do be communes with die Obpeceive ofdie test absernet.
lCiceed . Req ==== pnmded via Wesendiouse letter NSD-NRC-96-4800, deced August i 3,1996. l 2563 NRR/HQMB 14. ItA148 anM6 Clemed Action @ M_
260.55 rrP Test Abseract 14.2.8.2.7, Post-Puel Imedag Premascal Test - (1)The 7. suh==re==i simuld be revised to include specific plant syneen- " ; and (2) The issonnemen in the Test Meehad and Aaepsmace Qianna -h=-*-e is - " ,
lr'-8. Response pnmded via W J lunar NSD-NRC 96-4800,duesd Amput 13,1996. l Page 7 Total Records. 82
AP600 Open Itein Tracidag Systein Database: Executive Senussary Date: 10fi/96 Selectisa: [DSER Section] hke '14* And [NRC Branch] like NRR/HQMB' Sorted by heen #
Ik'n DSER Sechen/ T'leDenmpeen a (W) FRC No Branch Queshen Type seseus Deemil last Med Dee samans sessus 1
_ muurNo. / IX Dee 2564 NRR/HQMB 14. RAld E1196 Closed Actien F M 260.56 ITF Test Abstact 14.2.8.2.14 Reecear Coolant System Flow Cossedemic (I)The 01 edeve 9 =d==1sen alieuW include ofthe
. .._ flow characterumes ofwippeg of various RCS pump condnnahens in adation to anypes of aR RCS pusups;(2)The Perfenmence Cnema subeedsen shouW specify accepamble RCS How ceasedown roses and deley times, or reference the myyrtynsee less of flow t===ams afety analysis section in SSAR Chapter 15 Accidne an. lysis.
lrh=d . Response pnmded via W J letter NSD-NRC-96-4800, dated August 13,1996. l 2565 NRR/HQMB 14. RAla E1196 Closed Action W M 260.57 ITP Test Almerset I4.2.5.2.31. Isoehennel Tempermeure Coefficient Measurunent: k appears dont die iseshennel seinperusure coetrenent (TTC) nueesurenwie will be lunited tojust two evid 9 eint ved ceedigurehens (near fistly walidrawn er near inRy inserted) while die sencear coolam systein beren l
- - , . . reineins cesseunt. W f slieuld revise the 7 . ,- t and/or Test Method =a==16ess ofdois abseract to perfann ITC nuessurenenes and boren concentrateens which weend niere conservensvely suflect actual rencour cooient syman behaner er shouhl provide at various
~*
red- _ ~ .
to esemblish that die preposed nieasurement in the cunas abseract would yieW susularly conservumve values, kh=d . Response pnmded via W. .
- leser NSD-NRC-96-4800, daned Ampest13,1996. l 2566 NRR/HQMB 14. RAld S/lW96 Clemed Actien@M 260.58 ITF Test Abseract 14.2.s.2.47. Red Classer Control Assenddy Out of Benet Memnerensent (Fest Plant only)- (1)The Test Medied subsection reepswes that a youp of selected red cluster cesarel assemNees (RCCA) be inserted "first to Ilie N , '~ ' limitefnummhyusneuL" Honever, _
SSAR Chapter 15 curvessly speedies RCCA shymnem limies. W ^ f sludd revise die tesa in the abstract " 2 (2)ThetestMeched subsecteen should specify parameters to be snessured and describe esquected power Useributeens; and (3) The Perfenmence Crieeria subsection should specify the accepennee criteria for the snunemey of the incere and encore immanenenemmen to RCCA ~ ".
lrw.a . Respesne pnmded via W .
. lener NSD-NRC-96 4900, dated August 13,1996. l 2567 NRR/HQMB 14. RAIG E1196 Closed Action 9 M 260.59 ITF Test Abseract 14.2.3.2.49,Imod Swing Test- (t)11 e Test Method subsechen sesould idemairy die plant paranneers to be nuesmeared and !
recorded, and (2) The Perfannmace Cnemen subsection should specify the accepesNe innees of the primary and ascendary pressure, level, tempermure, ac. i et various power levels,er provide specific - , 4 crieme or desipi basis funceenal sequiremesas tr=n==ede to the appreynote SSAR sechena.
lCiceed. Response pnmded via W .
letter NSD-NRC-96 4800, deced August 13,1996. l 2368 NRR/HQMB 14. RAI4f E1196 Clemed Action 9 8[_ j 260.60 ITF Test Almerset 14.2.8.2.50,50 Percent Emed Rejectieur The Perfannonce Cntensus subsection should specip ydie accepenble ranges of the pnmary and secondary pmmure, level, temperasure, etc. er provide specific accepeance criteria er desipi basis W sequeenieses traceable to the apprepnme SSAR mchena. ,
Khad . Response pnmded via W j - lecer NSD-NRC-96-48u0, deced August 13,1996. l 2569 NRR/HQMB 14. RAl48 S1196 Cleasd Aceien S M ,
260 61 ITF Test Abstruct ]4.2.5.2.51,100 Percent lead Rejecesen (Fest Plant Only)- The Test Medied =a==*== should idnnify the plus parameters
+
es be smennered and recorded.
lCleasd . Response pnmded via Wesemigliouse leenr NSD-NRC-96-4800, deced August 13,1996. l i
t t
l Page- 8 Total Records. 82
AP600 Open Item Tracking Syste o Database: Execytive Summary Date: 10/1/96 sessen n: IDSER 5ection] the 'I4** And (NRC BranchD&e MUUHQMF Soned try hem #
Item DOER Sectienf TielaDeswipelen (W) NRC ;
Na Branch Quesensi Type Sesses Deemil last Med Dune geseus samus IsserNa / 12 Dane 2570 NRRn4QMB I4 RA1.OI 3/lW Closed Action h 260.62 The samffhas idnedied die follownig syneens, . and'or features that do set appear to have been becorperseed wishin die AP600 ITP:
a Vesademon Byusem through Fue Wells and Smeke Removal
- b. FueDunpersandDeers
- c. Onsite Senney Power System (Onsite Senney Diesel Generseer Support Syneem)
- d. CesenkunanI, dens
- e. Annex / Auxiliary basilding Non-Radioactive HVAC Syussen
- f. Health Physics and Het Maciune Shop HVAC Syusem
- s. Turbine Building Venednesen System IL Reactor Vessel Floo&ng Syneesn/ Vessel Insulmason Arrangement (testing should not hevolve floodus die cavity,but weeld oncengass ._ ^_ _ (1) flow poem /seems between the IRWST and the cavity (2) drainage paahs into the cavity (3) Soeder valve aparability (4) esys/epeiungs in the insulseien ;
syneein for water inysenen and eyession,(5) inneyney ofinsubseien support systeen and outer surface ofvasesi lower head)
Fortheineensliseedabove,W 1." _ -_should ideseify and revise die pestmens test abstraces er sumanaries to w dense, or crosse m&hesenal
-A accordegly IClosed . Response provided via Westinghouse letter NSD-NRC-96-4800, dated August 13,1996. l
- 14. ItA 41 artW Clemed Aceian 9 p [
2571 NRR/HQMB 260.63 W- should include a ;:%. - " test abstract for (a)the 400V nonClass IE __-, 2 ac generseer and its detributsen panel, including die incomeg and outgoing feeder circuit breakers and plug-in type twist lock cosmectors pre-wwed to ausgeing feesler circuit brealters; and (b) ehe Digital Metal hupact Memnonng Syment l Closed . Renyonne provuled via Westinghouse letter NSD-NRC-96-4900, dated August 13,1996. l
- 14. Italot s/13.96 Closed Action W g_
2572 NRR!HQMB 260.64 ITF Test Almaract 14.2.8.2.53. Het Full Power Baron Endpost- (1)The Test Method subsection speedies that measurement of the RCS critical beren concentration be only performed for a single RCCA condiguration (all rods out, het IIsil power, and equilibrium menen) Wesemghouse should revi-e and/or Test Method subsections of this abstract to perform critical beren w -.c f at various RCCA cardigurations the 7... _ .
khich would more -. ._;...b reflect actual reactor coolant syneem behavier, or should provide M, " _ to establish that the proposed measuremese in the current abstract would yield sunderly conservative values; and (2)lhe Test Method regares the ._ _ of the pre &cied baron concentratsen as a function ofcore bumup using the corrected (er resultans) nuessured boren - _ The Acceptance Cneenan should specify the &fference between the nicasured and predicted boren concentrations expec.ed mAer renermahemason er provide speedic -- e criteria traceable to the apprepnsee SSAR sectsens.
lCleoed. Response provsded via W- .
-letterNSD-NRC-96-4800, dated Ansgust13,1996. _
l
- 14. RAJOI s/13/96 Clemed Actien W k 2639 NRRAfQMB' 26055 Chapeer 14. Initial Test Peepsen
" Power Supphas: This test abstract does not reflect die ahmipi and - ". - ofthe AP600ClassIEDC 14.2.8.1.2, Class IE U
.: ;.?_ syneemt Speedically, SSAR Section 8.3.2.1.1.1, Class 1E DC de% senses that these ne four '_ " , " .ClassIE125Veedrvusens (A, B, C, and D) each casugnmed ofone bemery bedt (W as 24hr bemery bandt) dist provides power sources to the leads repared for the first 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> follounng a less of all ac power concurrent wide a desipi basis accident (DBA). The seceed beauy beset si divisseum P sad D (designmeed as 72hr bemery bank) is used to supply these leads reganns power for 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> followink a DBA No lead sh% or lead simumpanas proyam is needed to feed the essential lands during the requeed safety =*=sian peneet m
lrws. Response provided via W ." lauer NSD-NRC-96 4800, essed August 13,1996. l Page: 9 TotalRecordr 82
AP600 Open Item Tracking System Database Esecutive Samunary Date: terups Selecties: {DSER 5ession) Ike '14 And [NRC Branch l lte NRR/HQMEr Sorted by leesu #
that DSER a=rs==' Tiescamspesan (W) NRC i No. Ilrencle Questian Type gemens Deemil last Med Duae summe gemens
.lmeer Net / IJr Dune 2640 NRRSIQMB 14. leal-01 61ms Closed AceienW /
260.66 Diapeur14 InitialTestPropan 14.2.5.1.17. Process Conqueer: The Pesfonumace Crenne subaseman ofdds tese abstract shade be sevised to psevWe speciAc ar in=see crieeria er desiye a basis fianceanal reilusreneeses traceable to the apprepnene SSAR secton(s).
, lClamed . Response provided via Westuishouse leser NSD-NRC-96-4800, dated August 13,1996. l 2641 NRR/HQMB 14. RAlol 84196 Clemed Action @k ,
26037 Chapter 14 InisimiTest Proyan
, I4.2.8.1.18,in-Plant Ceaunumcasion Susent The Test Mediods and Li_ Cr eenan subsechaus ofthis abstract need to be revised to dunanserate accepenble perfonnmace of all subsyseenis - , - " by the in-Pless Canununscshan System as described in SSAR Seceien 9.5.2. ,
l Closed. Rempanse provided via W. . - leser NSD-NRC-96-4800, desed August 13,1996. l 2642 NRR/HQMB 14. RAlol 8/1196 Clamed Aceiem M 260.68 Chapter 14 -Initial Test Prograni 14.2.8.1.51. Operamens and Control Cesser Systent This test abiermet does not reflect die desipi and caudiguruman ofdie AP600 Operunans and Caserol Cesser Systent. Specifically, the prunary plant caserol syneeni operator interface is a set of seR"caserol unies est replace convenhonal runech/hght or
,.J.' Jnieter assembhes used for operator interface with consol systems. The functem4immed tout analyus serves as the basis for L. _ the eierne, duplays, comerols, and procedures in the mam caserol area.
The Test Mesheds and Performance Cntenen subsecesans of this abstract need to be revised to d= mate a==r =h8*,i - a( and to encesmyama, these unique AP600 elesipi fessures.
]Clamed - Resposee provided via Westinghouse tener NSD-NRC-96-4200, dated Augent 13,1996. l ,
2643 NRR/HQMB 14. RAlot s/tW96 Closed Aceian$ g 260.69 Chapter 14 InitialTest Propsm I4.2.8.1.59, Enguerered Safety Features Acoustian Cainnets Test Capability: This test abstact does not reflect the 1 _ of the A?600 cesuputer based proeection system desigri. This section is a subset of Section 14.2.8.1.72,"Presechen and Safety Mom
- The pnmary purpose of Section j 14.2.8.1.72 is to demonsersee the m , " ", efnactor trip logic functions while the pnniary purpose ofdiis section is to deniansersee acceptable i perfannonce of the Fagineered Safety Fessures Actuation Syneene (ESFAS) This test needs to be revised to enconyams and property verify acceptable
,,1.._- of die isoineed riber-optic datar- _ lini s, including a senseed premacois, ef(a)ihe Insey n.d Freesenen Cabinein wrro.
Enguieered Safety Features Actuation Cabmeen,(b) the Engmeered Safety Features Actushese Cabinees toSosn ese Praesetsen Legic Cainnets, and (c)the Protection Legic Cabinets teTrem the Protecten Mehiplexer Cabinets.
lClemed - Rempanse provided via Westinghanne lesser NSD-NRC-96-4800, deced August 13,1996. l 2644 NRR/HQMB t 4. RAlol 8/IM6 Clamed ActionW M_
260.70 Chapeer 14-Initini Test Propani 14.2.8.1.68, Resueence Temperamare Detector Cross Calibrahame W f _ should revise Gae =e===== orgnis test abstract as follows: (a) the Obpeceeve subsecesan should include venfication ofresponse times, and accurscy requiresneses easmunes widi the safety analyns unchsded in Chapeer 15 of sheSSAR;(b)the 7 , =h=aison should be revised to describe the in aims er laboratory calibrassen tessing east will be perfanned to verify the J. calibraban duas (inchuhng range, scaracy, . , " 7,,dymanucnapomme,envuousummel . ~ _ calibramon reference,and calibrunon uservals);(c) sie Test Meehad =h=-d- should be revised to clearly esembhsh >==da for RTD celtrehamL Putscularly,the dependency of the does on unsfona coolmse tengerneure and flour should be ==rh====d ard (d) the Personnance Quesne h shamid be sevised to inchade the basis for the -- . criteria and vahses ofcross cultraban paises nonsusared in.eien throulfsaut die RTD range,to ammare that te duas is =P for dee cens .
4 - er sy==== drin.
lClemed. Response provided via Wesendesume lesent NSD-NRC-96-4800, ested August 13,1996. l t
Page: 10 Toent Resortis: 82
AF600 Open Itens Tracking Systemi Database: Executive Sununary Date: 10f1/96 selecties: [DSER Secttee] lhe *14* And (NRC Branch] lhe NRR/HQhcr Sened by llem #
l== DsER Sectionf Tide /Deenytna (W) NRC i th=== Type Beuaus Deemil last Med Dese shaus smaus 1. amer Net 1 IJlr Dune No. Dnsich RAIG 8/1396 Closed Aceien F M 2643 NRMfQMB 14 260.71 Chapter 14-InitialTest Preyam
. ddee AP600 cenyueer bened preeechen syssem l 14.2.3.1.72. Freeechen and Safety Mesmeering Symanni: This test stuerset does not reflect die -- f.
'.-- See item 260.69 above.
}r a-- a . Response provided via W J - les v NSD-NRC-96 4800, dated Augmt 13,1996. l Closed Acesen@g_
2646 NRMfQMB 14 RAIM 8/1396 260.72 Chapter I4. Initial Test Proyssa 14.2.8.1.81, Pressuruner Pressure and lewi Caserol: The Test Medied subsection does not include testing daignal setedor and :solamen devices.
West: ? should revise this subsection to encompses testing dahese devices or shouW ideseify the test abstract that encv= msch testing l8'a-a. Response provsded via W f - letter NSD-NRC-96-4000, deced August 13,1996. _ l 2647 NRR/HQMB 14. RAld 8/1396 Closed Aceisn 9 M 260.73 Chapeer 14 -Initial Ten Proyani 14.2.8.I.95, Reactor Trip System and Engwieered Sdety Femanes Acomumen Cebusees Syneeni Response Tune Test- This obseract shmad be revised as '
follows: (a) the Olyective subsection should inceryersee wrdicassen of"Real-Tune Perforsnance of the diciami sysseum (the arttueecture of the digital system affects the response time of the RTS and the ESFAS r-.T );(b)the 7. . ,
h should uncorporate the deeresanutien ofsensor delays and actanter delays (by seapoet study). Since real-time desspuses for the digiset part ofdie suectur pr===e.== system are computed by suberacting sensor deley and acesseer delay from die snaxinusm response times a.ea.A=el by samlyrte ofChapest 15 evenes, sonware unies timine simies should be aveslable to demosueruse dust soeware units adeepsmaely niest dieir timing - T-
}r%.a . Response provided via Westinghouse lener NSD-NRC-96 4800, dated Assgust 13,1996. l ,
I4. RAla 8/1196 Closed Actions M_
2648 NRM 1QMB 260.74 Chapter 14-Initial Test Prayern I4.2.8.2.46, Flam Ceneet Sysseur The scope of this test shouW be espamled to encenyams all ether Plant"M Symem subsysema as identified in SSAR Chapeer 7.1. Altematiwly, Westinghouse shouW identify the test sintracts that currently encampens such subsyneems.
lCleoed - Response provided via W . lener NSD-NRC-96-4800,dueed August 13,1996. _ l I4 RAIG sil196 Closed Action F p/
2931 NRM 1QMB 260.75 Weninghouse will dewlep criteria to be used in its ynded approach to testing to deterinene iridenhnsd testing shouW be included in preeperationalteeingproy==or - . -teming propant Westinghouse will provide the criteria for staffreview by March 31,1995.
jrh d Response provated via Westinghouse leteer NSD-NRC-96-4800.deced August 13,1996. l 2932 NRMiQMB 14 RAIG S/1196 Clemed Aceien5 k_
260.76 W. J will dewtop criteria for determuung if an ITF test sliould be perfinned om due first AP600 enly or en all AP600 pInsen.
W f wig rovide p die cuiseria for semifveview by March 31, ,
1995.
l Closed . Respense provided via W leser NSD-NRC-96-4900,deced August 13.1996. l 2933 NRMtQMB 14 RAI4 8/two6 Closed Aceien Wk win provide she medied(s) that wiR be used to prevem swainer cloggas un the pourse essay svuemus. l 1260.77 W .
]Clemed - Remposse provedse via Westuemuse tener NSD.NRC-96An9, deesd Ampset 13,1996. l Page 11 Total Records: 82
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< AP600 Open Itent Tracking Systen Database: Executive Sanmary psee: 09/t U96 sesseden: [DSERSe:Ison] the 4.2.l ** And [NRC Branch) the NRR/5CSIT Sorted by NRC Brunch TelWDesevignian (W) NRC han DSER Satosef sessus Dnnit lad Med Dese sessus sesens 1meerNo. # IX Dese Not Branch Queshen Type Oneves Clemed Actiw 972 NRR/SCSB 6.2.1-1 DsER a
.the seusce tevne for the AP600 is curremely usulse sesdfresiew. l lThe new niethod for- -
Closed. The source terin originally proposed in die SSAR is being shendessed isi fewr effie searce terne defined in NUREO-1465 (tie losesncel eeurte Istm as dernied in TID I4844 and RO l.4 has been supermedad by die source _lsens desevibed in NUREO 1465). -- -- -
__ =. -
-.i.__ _ _ _ . _ .
DagRei eMMs Aelive Aelin 973 NRR/SCSB 6.2.1-2 necause the Ars00 desipi eses nos how conessunene stuen.nseural deposanus on surfhces in cm la fler nesse ' , ._ ihan isi pass denipu The -
channistion of ceseeisement syms froen the desipi ep further staff miew.
Actiw: Convinnucessen ongoingbetween W._^ .
? and NRC reiseiw to the conceps erseremmi rennevel espelnhey that could be used for sewee m;J- .: visitigseiosL 010:4s Closed Actien N 974 NRRSCSB 6.2.l.3 D5ER O O l lWestingpecesse should suissit venues for the peak calculated ettersial pressure.
- ,,_.. are gemided SSAR l b6 Kloerd - Peak calcoqueed a.,a..
Ott30r96 Closed Actiesi N 973 NRR/SCSB 6.2.I.4 D5ER G l
ON lWessing,ieuse s is still validating the perf_ _ _e of die FCCS, and matmiew is continuing l
bDT klamed . Weni:W actisities sagyartuig WOOTHIC uvd- and validseien how been casuplete L 0 0696 Clemed Actien N 976 NRR1iCSB 6.2.1-5 D5ER G Die seat mill perfcene confirisistory calculatiens sRet W. ,' : reentwd the issue of ponering die diennel vecesninners with - _. " , pode ec.
ISSUE hlODIFIED BASED ON 7!31195 INPUT FRohl NRC The nestIwill ,,.'ac . ' ._ _ , cekelseiens fee sweeni incorrerating FARs.
- 7. calculations mill be perfarnied en the denipi e.W PARS. l
[ Closed - Adersion of PARS changes this issue. NRC m,.'
0 0996 Clemed AceienN 977 NRR/SCSB 6.2.1.11 DSER O
~
OIC The seatis currevely miemingthe snelnes.eelseed partions of the August 10,1994 Westingpimuse subnummis (EPRI ..g_ en GOTHIC,includwig the TJ- . l Manuel, Users Manuel, and Qualificatien Report), es weII as the applicable tese , " - --
p , subnuetsis to suppast sentmiew. l Klemed . Wese:._ -has % Li m._._
034156 Clemed Action N 978 NRR/SCSB 6.2.1.12 D5ER G I l l Pertaining to the ... " q of the passiw cooling fessures the seaff mill miew the isyue esessagesesu, along with the calculated resulis.
g Cloud - Subannelnuppennis meKmiew how ban conspined 607 Westinglicisme will preide sensitiviev cases for initial cosidisiese (leinperseure and huniidiev) isi May 1995,,-.
y SSAR Section 6 nisekups. NRC eyees to cases per 2/21/95 phone cell.
010996 Clemed Action N 979 NRR/SCSB 6.2.I.1-3 D5ERol
",0 : niedels and input assurnreiens. l O [Wessingpiouseh,; - efthe data freni the large Scale Tests (lETs)is ongoing, as is the senffs ... erdie _
- 2 m-, sshnmaals to support staff miew. l b l Closed Westingpiouse has m. ,
OlOW96 Clemed Action N 990 NRR/SCSB 6.2.1.14 DSEROI a l 01% lThe tremenunt efine st.weier reacteen energy should be conssdered as an energy source.
l bOI l Closed - E .., frono l*6 saetabweser reaction (per .% , 't K) creiheed.
Page 1 Telsi Records- 31
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e AP600 Open Item Tracking Systent Database: Executive Summary Date: 09/11196 Selectlen: [DSER Section] like 52.1 ** And [NRC Branch] Itke NRR/SCSIT Sorted by NRC Branch leem ogER Sectiosef Title /Desmphon (W) NRC No. Branch Quewlan Twpe Status Detail let head Deee Statue Status IJerrNo. I l>r Deee 1000 NRR/SCSB 6.2.I.7-1 D5EROI Ol/M96 Clued Actiose N hhe statis cwmnly miewing the contawunent<eleted inseuneenteeinn mynressienes- l l Closed - Westinghouse has completed necessars suhnusuals to suppnet maKreview. l 1001 NRR/SCSB 6.2.1.8-l DSERol 084536 Closed Action N The sistis curmely resiewing the issue of filtering corrosion products, dust, and oeher detnis in the IRWST and conseauneet sung, to pment the cloggmg of ernmers and screens. Closed - Westinghouw has congleted necessary suhnuttals to support matmiew. He IRWST sump and the corneinenent recirculation sump of the AP600 are des greed and locesed to have small posential for plugging, The two types of sumps are in ditema areas and how seperste floodnig condnions. IRWST Sump The IRWST sump is et the honom of the IRWST tardt and separated from the ormaander ofconnairunent. The IRWST tara is fully enclosed (escept fee wnes and condemate collection pipes) and is lined with useinless steel The useer has a high cleanlaicus os it is fiheml(tw the speed fuel speem) each refuehng for uw in the refacting canal. Shadge mill he minimal and the COE,cicentiness proyam will pment foreign debris from henig introduced into the tank. During a LOCA wnted RCS meern mill condense on she a--- 1_ _.; shell and be abrected tw guisers to 4 inch pipes which drain into the IRWST. Cosneinment point or coher Ione debris will hast to be smaller then 4 inches to be drained into the ordt. Since the tardt is normally full nosting debris mill stay on the surface, contasunent point has a high specific posity and uill speickly sink to the helicen of the tarA Various curbs in the guseers and inside the IRWST will trop the hessier debris prewating migration to the sump. With the low wlocities of gresity injection no sigruficant tramport of hensy debris is egected. Wisen the tardt is fully empty (if possible) then floating debris will he trapped tw the screem but henty settlel debris will not be
,,_ , Liisso the lRWST lines.
C-. - _ : ; recirculation sump The intakes for contenunent recirculation are lacsied on the mills aber the flanr elo, stim at 83 feet. This is 11.3 feet ahme the m1msee sump below the reactor wssel(as elewinn 71.6 feet). The bottorn of the inlet screen is one fact off the noor, this prmides a cwb function. During a LOCA, water will flood the wssel casirv and edpacene noors up to the 107 foce eleunticut The --- - .;recwculationlineis not opened ureil the water lewI in the IRWST reaches a low lewl seapoire. Waeer lewl in the flooded containment when IRWST reaches the setup is ahmt the top of the recirculat%n inlet screens. Thus I during Rondup there is not a transport of floating debris to die screem and hessy sneserials will how settled to the waste sump lewI or the 23 foot leul. During recirculation the water Bewt in containment mill not change significantly nor will it drop below the screens. Thus the recirculation screem wdl be not be clogged by floating debris or try heavy debris. De less ornan safety costing mill not han an effect on sump operation. In addition the COL will implement a cleanliness prograni to ehnunsee dier pneeistsel cloggmg debra 1646 NRR/SCSB 6.2.1.2-4 DSERCI 010096 Closed Action N hhe LBB concept is cwmnly under matrmiew, as it specifically applies to the AP600. ] l closed - Wem.nghouw has preided =cessary suhnunal to support mettreview. l Page: 4 Total Records. 31
e AP600 Open Item Tracking System Database: Executive Summary Date: 09/1IIM Betection: [DSER Section] hke '21** And [NRC Branch] like NRR/SCSIY Sorted by NRC, Branch lenn DSER Sectionf Title /Desenpeian (W) NRC Branch Type Sts;us Detail Last blod Date States sessue imee N , f I;r Date No. Quemien NRR/SCSB 21. RAla cir30% Closed Action N NTD-NRC-95-4602 1800/95 31 0K Queshon 952.100 (PCS Scahng Analwis) Provnte a comnutment to suhmit a complete FCCS scaling analwis. The setert shneld describe liow the scaling analyses will be used in validation of the g97 anahn codes. De acehng report should descrihe how the large scale tests anshiis will translate to the AP600 desiyt An eWice of how sins anshiis would he used in the code valnistion process should be included. l Closed - Resposee provided via Westinghouse letter NTD-NRC-95-4602, dated i I 0095. l RAIG OV1196 Closed Resolwd NSD-NRC-96 46% 1897,94 32 NRR./SCSB 21. OK Question 952.101(PCS Analysis) Provide a m- _ ; te submit calculatiens of PCCS interior wlockies using the WOOTHIC code. l Closed - Response provided by NSD-NRC-96-4696. ] 33 NRIUSCSB 21. RAla Ol/309s Cioned Action M NTD-NRC-93-4414 03/13/95 g, es. Questiosi952.102(PCS Asenheia) Prodde a eununionsent to sulunit an snaksis of air flow in the ammlus (besh wet and dry comes). tef lCisard - Respcsse provided sie Westinghouse letter NTD NRC-95-4414. l 34 NRIUSCSB 21. RAla 019096 Closed Action N NTD-NRC-94-4337 1I 9 7/94 o C. Quemion 952.103 (PCS Water Distribution kindel) f5nide a rosnnutment to sulunit en analwis demonstrating the validity of alte (cold wsR) mwer distribution tests to predict percent fihn coserage when the bOI uall islitt
@ Resparue prmided via NTD-NRC-94-4337 l 33 NRR5CSB 21. RA14 C10096 Closed Action N NTD-NRC-94-4337 1897.94 r
Ok )Queglievi 952.104 (PCS Water Drstrihinbei klodel) Irrmide a conumement to submit inronnation on how the m sier desenhution enodri faidings support the desiy> bases acendent anshies.
$W l Closed - Requwue presided via NTD-NRC-94-433 7. l 4R5 NRR/SCSB 21. ErTOO 07/:6/96 Cleard Action M NRC hiectmgon PCS(11/1594) b Westinghou=e mill use the tools dewtoped in the scaling mark to include consideration of statification for steam line breaks.
Closed - Tools that can he used to address stratification effects are presented in the scahng anal}sist Section . ( N'N '
- 10. The evaluation of stratificatien for steam ime tweeks is presevned in the initing and stratification -
report 2, Sation 4. (1) y pg j e,pt .,e Referencer. tMe, e a w e** *
- l. D. R. Spencw,* Scaling Analyses for AP600 C ..; Pressure During Desigri Basis N*
Acudents," NSD-NRC-96-4762. July 1,1996. Westinghouse Electric Corporation, Propnetary Class y 2. 2.1 S. Narole. "Assessrnent of kliting and Stratification Efrect on AP600,* NSD-NRC-96-4763 July 1,1996. Page I Total Records 104 y
AP600 Open Iteni Tracking Systen: Database: Executive Summary Date: 09/11196 Seleetles: [DSER 5ection] like *21 ** And [NRC Branch] like NRR/SCSB* Sorted by NRC Branch 38am D5ER Sect! Jet / Title /Detmielen (W) NRC Na Branc% Q u een Tm semen Dnail lad blod D ee sisen steen _ _ _ Imer_Ns L_ _f.ar._Dene d88 NRR/9C98 S t. MTool oft:sse Closed ActionM ggy* NRC Meeting en PCS (II/15/94) Weninghause will use she scaling ansh* to look at uncertauey t hnundmg anoppes. Closed - The FIRTI and scoling anshs2 identerwd the i , and phenomene that donungle preemarisalita c(Ihr APn00 enlainmens iliwing dmsilisoit nuleins (IMIA) The dominent phenomen are ihme disi nunt he haunded in the eutudion model. m hounding arrreach used nn M*WI the AP600 evaluation snodel was denmhed in the DBA Road klaps3. blixing end Stratirrosson4 and external mater cowrege$ are donunant phenomena that mere reached and incorporated in the evahsetion snadel by biasing leunden condaions and inpues. g g 4 ( ( $ W w eewiese ( 33 Rf eve el d** *
- I. D. R. Spencer,* Accident rpecifiestion and Plwnnmens Evalemeien for AP600 Passhe neew fc5 $les. eh Casesivenent cooling Speem". NSD-NRC-96 4643, Febewerv 12,1996.
@ pn.,,
- 2. D. R. Spencer " Supporting Infcematinn for the Use of Forced Comection in the AP600 PCS Annulus "NTD-NRC-95-4397, Fehowarv 16,1995, Wessinghouse Electric Cerrorstiori. Propnetary Class 2.
- 3. "AP600 PCS Design Basis Acculent Road klaps."NTD-NRC-95-4545 August 31,1993. ,
- 4. J. S. Narule ' Assessment of niixing sad Stratifiestion Effect on AP600,* NSD-NRC-964763, July I,1996.
- 3. R. P. Ofsten. "AP600 PCS Film Coverage klodel". NSD.NRC-96-4728. We-lingpwuse Electric Corporation.
4R7 NRRSCSB 21. EfTGot 076 % Closed ActioM g f" NRC kleetmg on PC$ (Il'1594) Westinghmise mill provide additional information on the w.., _ ._, ofIET and AP600 Froude numhen. Closed - A compernon of AP600 and LST Fraude numbers is Iveseveed in the acalmg analpis t, Section 10. These testamotge u.., _.._ are among the considerations used to address the effects of mising and stratification 2 on the evaluation model. g I
References:
bI
- 1. D. R. Spencer " Scaling Analpis for AP600 Ceresiruncie Precure During Design Basis Accidents " NSD-NRC-964762, July 3,1996, Westinghouse Electric Corporation. Propnetary Class 2.
- 2. J. S. Narule," Assessment of hiixing and Stratification Effect on AP600 " NSD NRC-96-4763 July I,1996.
52 Total Records, 104
. o ,
AP600 Open Item Tracking System Database: Executive Samen:ry Date: 09/11/96 - Selectlen: [DSER Section]like'21** And [NRC Branch]like NRRr4Str Sorted ty NRC Branch Itent DSER Sectionf TiaWDescnteion (W) NRC No. Ivanch Queshou Type 8tsein Detail Last kled Deee sessus sesene _ Imer Net i 12 Deer 488 NRR/SCSB 21. MTO41 07'2636 Cleese k NTD.NRC-934397 gg NRC Meetingon PCS(IlII544) W. J will prnide additional infonnscion or point to prenoudy suhnusted infonnstion which addresses NRC concern on use of forced conwetion correlation in the annulus. Closed Forced comection was deternunedl to dnininete heat transfer in the PCS riser. De effect of huovency is less than 5'.of the forced comection value for shell tenperatures 2 oF or snore show die asubient air ^..m. _-.
References:
- 1. D. R. Spencer," Supporting Inferrnation for the Use of Forced comection in the AP600 PCS Arusulus,"NTD-NRC-95-4397, Fehnserv 16,1995, Westinghouse Electne Corporation Propnetary Class 2.
489 NRR/SCSB 21. MTGol 0F:W96 Clened ActionY N g NRC kleeting on PCS (IIII5,94) Westinghouse will look at the nonnalizatiosi afsteans sources. Joining inside and outside m r on a sineiler basis to look at condensation and cumporation. Closed - The nonnalization of the sienni soisrce is desenhed in the June 1996 scaling enehiisi, Section 6.0. In the scahng analpis, Secisons 3.3 and 6.6 the inside of-_- ..; une coupled to the outside(the gyqrg riser) using effectiw heat transfer coefTicients derived from energy - nenrene.e: CI }
- 1. D. R. Spencer," Scaling Anahiis for AP600 Conseirenent Pressure During Desipi Basis .
Accidents " NSD.NRC-96-4762. Julv I,1996, Westinghouse Electric Corporation Propnetary Class 2. 490 NRR5CSB 28. kITGol 07/2696 Closed ActionX N (( NRC hlecting on PCS (liII5,94) Wessinghoine will prmide infonnation to clarify the nonnalizatieni hesis for the LST and AP600 Pi youps used in the sealing anshiist Closed - The basis for normalering dunensionless peups is clarified in the June 1996 scahng analpist. Nonnalization of the rose of pressure change espiation is desenhed in Section 6.0, thu heat sid energy ( equations and conductances are nonnalized in bections 6.6.1 to 6.6.6, and PCS eir flow path ggg _ equation is norwielized in Section 3.1. References.
- l. D. R. Spencer,* Scaling Anahiis for AP600 Contemenese Pressure During Desiri Basis Accionats," NSD-NRC-96-4762, July 1,1996 Westinghouse Electnc Carperusion Propnetary Class 2.
Page: 3 Total Records. 104
AP600 Open Item Tracking System Database: Executive Summary Dat2: 09/11/96 seletion: [DSER Section]like'21** And [NRC Branch]like NRR/SCSB' Sorted by NRC Branch (W) NRC Stian D8ER Secticent Title / Description lad kled Date Status Status letter h / 1Ar Date Queshan Tge Status Detail h Branch
- 21. EfTG4f 07/2696 Closed Act M N 491 NRR/SCSB g( NRC Meeting on PCS (11/1364)
Weninghouse will provide infonnation on a move detailed twealt at e of the Pi youps used in die scaling analyale. Closed- The June 1996 acaling analwist presides a detailed treakdown of the pi peups. lite rate of pressure change pi groups are presemed in Section 73. .-
- a. pi groups in Section 7.1. liest siedt energy {g) transfer characterimic frequencies in Sectinum 7.2.1 to 7.2.5, and PCS air flow path nwwnenten pi groups in Sedien 83.
References:
- 1. D. R. Spencer," Scaling Anahsis for AP600 Corsainment Presenre During Desigri Basis Accidents? NSD-NRC-96-4762, July I,1996, Westingliouse Electne Corporation. Propnetary Class 2.
06/25 % Closed CLO3(p NRR/SCSB 21. EtTGol 492 hf)[ NRC hicetuig en PCS (II/IS 94) Westinghoinc/NRC to arrange a t/m,.'.... WOOTillC VAY. e to disceu the test anahsis and validation reports which Westingliouse will be aulunittnig to support Pe0%T LiiLFL% of e e ce w A. Action W M., W ktTool o&o3% 493 NRRSCSB 21. NRC hlecting on PCS (Il!t 5-94) Westingliouse to prmide aster destrihution dets ;. U J 4 the LST tests which was not included in final test data report. h[ Action W Action W TELot enco95
$00 NRR'SCSB 21.
l T.kmi..-e (11/2194)on ADS Testing Westinghouse to pmide NRC with road map oftheir a;,.m on Air k- 4 oads,condensationloads. but oniv that the infornention needs te presented in a fashien that is organized Vacuusn Dreaker concerns. hidications are that timere are no .U..w
/ optiniized for SER 9 Closed Closed D5ERol 0Fl396 1622 NRR$CSB 213.3.5-1 I
lwesi4;x should sutonii ail _ z_.;large acase iest (IST) docunientation. OK All - " ;LST docuniematinn has been arnt,includwig PCS T2R 050,"large Scale Test Data Enlaation? dated kley 1993. h 213.R.I l* NRC STATUS PROVIDED IN SDSER (40096) Westingliouse subnutted all-_ _large scale test docunientation. ( Closed Action NTD-NRC-94 4318 10/27/94 D5ERol OVI496 1623 NRR5CSB 213.8.5-1 l lReschmian of the IST facilsiv scaling imame is ,a ,- staff e-. LST facihty Phenernena Id:mification and Raseting Table and scaling via energy partitioning have been inmued 8br NRC review sia WCA h 213.53-l* - This DSR open itein idneified the ses!Ps concern with the scaling of the Large-Scale Test (IET) facility. The staffhas idemi afet tp T'l -
'l _4 w;fic SDSER open itews (213.8.5-1 m - 213.83-1f) to clarify its ===ns:
Closed Closed NTD-NRC-94-4337 D5ERol 05/1396 1624 NRR/SCS 213.9.l.1 l lihe wuser dueribution test ..,~r.- contain only a nianer-of. fact , _.c._: ion of the data, and contain no evaluation or -_--' g Closed - DISCUSSED W/ NRC IN 24/95 TEinutNRC ayeed closed, ..'..% response to RAI 952.104 213.9.l l* NRC STATUS PROVIDED IN SDSER (4/30-96) weninghouse ambnuned ..m sist commin evaluations and conclamans for the water distribution tests. Patte- 4 Total Recordr 104
. s AP600 Open Itent Tracking System Database: Executive Summary Date: 09/11/96 Selec t s: [DSER Satime] lhe '2I
- And [NRC Ikonch] like NIUUSCSIF Sated by NRC Branch lesen DBER Sectionf Title /Descripisest (W) NRC No. Branch Quemien T31m 8esens Damil lam Med Dew -
Semens semeus 1.maseNo. # ur Dew DsERot e5/1996 Closed Closed 1225 NRR/scss 21.3.9 3-1 JK None of the teses condected in the weser descritmeien tests, Phases 1-3, etenuned the heatedeudace efFect. Westu@ was sunde aware dehus maff g( cone m before the comunencemets of the weser dnanhution tem progrant 2 tJ.93-l* NRC STATU5 PROVIDED IN SDSER (4/30,96) ; D5ER Open Item 213.9.3 1 concewinns the lack of a hensed surface is subsumed under DSER Open liene 21.5.9-2. , 1630 NRR/5CSB 21.3.7.4-1 DSEROI 05/ 0 96 Closed Closed ok The seafris interessed in "c _
,whether the external wind helps contauunent cooling natural convection air flow, has no effect. or sends to counseract
- .t. mind neutral, and wind 4ergatiw,respectiwh$
the flow ( { 21.5.7.4-l* NRC STATUS PROVIDED IN SDSER (4/3096) The staffmiewed Wessingpuiuset..c" " ,;, for assessmg the mind neutrality of the AP600 cessairmnent and finds accepestde Imdi the conclusicsi that no irnposed wind condanms are conservative for the AP600 m - .; loss-of<oolant. accident (IDCA) anslwis and the decssson to use this I " ,;in the " ." ansi3sis. ; NRR/SCSB 21.S.8-I D5EROI 069396 Action N Action N NTD-NF.C 95-4459 1631 45 D1 e tremenine ornoncondensatdes in the LST prograrn is mill under maft resiew. l h[ Proposed in reports: WCAP-14326 (NTD-NRC-95-4428) which valmisses the correlations owe the AP600 range, and latter NTD-NRC-95-4439 preidmg a franicwork to assess niixing and stratification in the FCS enlustian model. 21.3.5-1* The seefIis still miewing the treatment ofnencendensible games in the IST testing program, the tresement ofrnising and stratification in the AP600 design.hesis occident (DBA) evaluation inndel, and the use of the IET dets to support the evaluation niedel in the IET progrant 1132 NRR/SCSB 21.3 3-2 D5EROI e69396 Reschid Action N o E-- The appheshihty of the miser cetrage test results from hneh the water demnhution and large seele tesen, as they relmee te the input used fw the WOOTIIIC code,is still under seefFresiew. N Resolved - This item is resolved pending suhmittal of SSAR analwis which will outline details of mater cetrage assumpeians. 21.$.8-2* -11er staffis still miewing the apphcahility of the unter cmvrage test reguhs from both the weser distribution and large scale tests. as ther relate so the input used for the WOOTillC computer gvoy em for the AP600 SSAR. 1133 NRR.SCSB 21.5.8-3 DsERot n6eos.96 Resolved Actiong W SC*Li# UIw nFroAr.3_ The seafTheliews that more measurements mov he needed to spiessify the mixed <omectin flow ficht This is an issue which could be ofimportance in the j! scaling of resehs to predict the protot9i cal u . .; performance g Resolwd - the innernal wlocity field infamission as it relaecs to WOOTHIC validation has lieen presented in Nowinher 1994 and April 1993 meetings with the NRC. Ne 4ditional sneasuremenes are needed. Weninghouse will preside this idormation wisiin WCAP-I4302, WGOTHIC VAV. 21.$.8-3* -The concem whether the LST prmides sufficient sdomestion to amnist in developung a conservatne, boundmg annivess, mas idneified in Open items 21.3.5.5-Ib and 213.5.5-1c, remains. As sisch DSER Opm item 21.5.5-3 venisens open until the scalmg and PIRT issues are resolwd. 1634 NRR!SCSB 21.3.5-4 DsERol 06m196 Resolwd Action [ g The nuessuremne ofcondmssee forming within the contamunent wsoel must be ceasidered when addressing die apsession of the minhty of the WGOTHIC
,r+i - ,e<-
y Resolud - presessations in Newmher 1994 and April 1993 showed good eyeenine wish istantaneeus condensation ruses as a function of time rather than time awraged values. This infonnaison will be included in the WOOTHIC VAV WCAP-14382. 21.3.5-4* - W- J edienced that the heat balmace anshus would be miewed to address seaff concems about condensmee formahan in the womet. The sensrconnders this m - .; to be part of DSER Open leein 21.5.8-4, and therefore, this ierm remman open.
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Page 5 Total Recordr 104
i' AP600 Open Itens Tracking Systen Database 2 Executin Seminnary Date: 09/11/96 Selecties: [DSER 5ection] hke '21* And [NRC Branch] hke NRR/SCStr Sorted by NRC Branch ! heen DSER Socesenf Titlecescripesen (W) NRC Neu Brande Qunalen Type Sensus Detail Lase kled Dene sessus sessus tenerNo. / 1Ar Deee D5EROI 05/t L96 Clamed Closed 1635 NRR/SCSB 21.S.5 5 M1 e lack of adesqueer uunnunesession in the IET annular region ninkes it ddlicult to evoluser sie , - -_ veer Assa em contasunent stiet. l ( 21.5.5-S* NRC STATUS PROVIDED IN SDSER (4/30/96) WCAP-14382 and W. ." - Report PCS-T2R450 contaus an evahnseson of the large scale pasmiw casenmunent coelug svseein (FCS) test doen. 1636 NRR/SCSB 21.3.84 DSERol 05/1496 Closed Action N NTD-NRC-944318 The LST needet does not include a domucernre region, and uses a cher:nev-imaaned fan to noodel cuch in the annular region, basi ofwhich are non-
,K g [ preestvpical of sie AP600.
Clemed . WCAP-14190. section 7.2 and 7.3 scalnig of the external flow push shaus no sipiiricant comenbution of sie alenneenser to eidner neergy or _ partitioning ofexternet PCS. NRC is evaluating uliether to rene a specirse apsessiasi relmeed to 2D effects on egenial flow path loss coefGcienes. l 21.5.54* .The sanfris mill reviewing the acceptability of the nosyheece3picality of the desipi of the IET nendet.mtiich does not include a dounicessere region, and uses a chenuier-isueelled fan to windri circulseien in the assader region. 1637 NRR!SCSB 21.3.3.7 D5ERol o m 96 Action N Action N L og The IET snedehng of the long and short term heat niedts, flow pasha, and iseernal wdernes in contemunese, especisMy in reission to their ..,,_ -__ _. in ' WOOTHIC are still ender staff resiew. Action NRC . Wessinghouse awadmg specific apsessions. 21.5.s-7* .11 e m fris ein mieming the inadehng of tiie long- and dunt-term best sinks, fhrw pasha, and inseruel wihunes in sie cessanunne.especially i
.a relseion to their reprementesion in WGOTHIC. [
1638 NRR$CSB 21.S.9 1 D5ERol 06M96 Actien N MW A/C hr /M O O K Timere is no tinie deresident fihn cowrese nondet. The is a concene as to mimether the 40p..; '^ c...;-W comage model is valid at anodi , Inser tissues sAer a desspo. hesis accident (DBA). Action W. SSAR sulemmel mill inchsde hoenuhng water cowreges throughout the 24 hour transeers. 21.3.9-l' . Weningitare sireds to deniensersee the validity and conomistissn, if appF able, ofusing the sanne cowrege 9 action for all tienes and of the 660- ! mecond tiser delev before inisiation of PCS fbu in the WOOTHIC DBA aussisis. I 1639 NRR'SCSB 28.S.9-2 DSEROI osess Action N ActiengW p#g w pu PSI i Under acusel DBA conditicas, when the dwn is heated, cmwege fractions could he thfFmne tem the 4.._; ^^ c..m;-70 percne entrilanson assumed in sie SSAR. ( Actiw . ahacusasons with NRC and ACR5 are ongoing with regard to miner cowrege fractiese assumed in the SSAR 2 8.3.9-2* . W- ." _ sireds to denensuerste how water emwege does chassied froen an urdiested surface can be ..;., _ ? to represent filns behesior ihe Ars00. 1640 NRR/SCSB 21.5.9 3 D5EROI 06M96 Action W Action [ g g,,( ihe metris aiso cone.-d ein en supponing .nn or= name w n orew rCCS.-rrace :.. . ._, and m , sede efrat orciogesig of en weirs wish rereiyi metenal are nm modeled in the WooTinC anehsis. , Proyens .need to schedule descussions wish NRC on approach for esis ieent 21.5.9-3* . W needs to address if and lesw the bmAle.well standafik are treseed in the cowrage niedel, and ifdie dryee of- presese in en coverage tactions nuctudes a reduction in PCS now <hn to clesyng of weirs wish detria. , t i Page: 6 Total Reconts- 104
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AP600 Open item Tracking System Database: Executive Summary Date: 09/11/96 Selecties: [DSER Section] Iike '21
- And [NRC Branch]like WRR/SCStr Sorled by NRC Branch lean DSER Samant Title /thscripeioti (W) NRC Na Rranch Quemian Type Status Detail Imt h4cd Dnee Samma Status 12tta ya p 13 pai, 1644 NRR/SCSB 21.6-3 D5ER G C6cM6 Closed Action N h[ No predictions between the wind turueel test data and any canyuser code analwis will be snade. The acceptabiley of the data from thane tests as input to the AP600 safety analpis is mill under resiew.
Action W - uill be addressed in Wind Turuiel Tem Analwis latter Report 21&$'- Westingbnuse needs to derrawatrate the accegenbility of the data frem the wind tyrusel tests to estabhsh the boundary conditions iryut into WOUTIIIC foe the AP600 m.._.. _.: analpis. Closed - Dncussed at 6/696 NRC sneeting. 1643 NRR/SCSB 21.6-6 DSER O 059M6 Closed Action N lThe staff has not pt cornpleted its renew and final enlaation of the WOOTillC code. ] Action W . DISCUSSED W/ NRC IN 2495 TELECON: This is a top lewt item that mill be clnaed after related specifse issues are closed. Scheduled FCS test annipis repoets should address this ieent 21.6-6' The staffis still micuing the WOOTillC cede. Closed. Discuaed at 6 696 NRC meeting. Comed hv ether SDSER open itena 1651 NRR/SCSB 21. TEL.OI wt:95 Closed Closed 02/1593 b 12/1394 Telectai ActionItan Wessinghouse is to prodde a detailed custwie of the consent of the PCS Test Anahiis Report by *rnid-Februarv*. 2397 NRR/SCSB 21. AfTGa et 1895 Closed Closed p p' NRC hiceting on PCS (3'87S5) Provide l_ST nndal semitivity cales with WOOTillC to show noding conwrgence and discuss how this addresses nummcel diffusion lNRC PCS Telecen of 5'995: Agreement on description and closure path. l 2392 NRR/SCSB 21. hfTG.OI orts 9s Closed Closed g[ NRC hieetmg on PCS (3/I795) Provide a copy of the GOTillC peer miew documenstion. lNRC PCS Telecen of 5.995: Agreement en desmrtion and closure petit l 2399 NRR/SCSB 21. EITG.Of 08/1895 Closed Closed g NRC hlecting en PCS (3/87/95) Prmide IET blind test boundary conditions being used by Westinghouse.
; lNRC PCS Telecon of $/9/95: Agreemese on desmption and closure petit l 2400 NRR/SCSB 21. Mt04 osmM6 Action W Action W
) NRC hiceting en PCS (3/17/95)
Provide experimental basis for heat transfer correlations under the conditions oflate phase drpet ofshell(bevond design basis) lNRC PCS Telecen of 5/995: Agreement on desmption and closure path. l Page: 7 Total Records: 104
AP600 Open item Tracking System Database: Executive Summary Date: 09/11/96 Selecties: [DSER Section]like '21** And [NRC Branch] like NRR/SCStr Sorted by NRC Benach leem DSER sectionf TitivDescrireien (W) NRC test hfod Dee gestue statue tense No. I Lar Dme No. Branch Queueien Tm Simous Detail 2401 NRE5CSB 21. ktroot e6e196 Action W Action W h( NRC hiceting on PCS (3/l7/95) Provale the esperwneidal basis for t vaanwnt of the effect of anntendessihte concentrations en eness transfer, hash seperuse effects and IET. lNRC PCS Telecan of 5 9/95: Ayeement an dreceiption end cicomte path. l 2402 NRR/SCSB 2h. htTGol 0691/96 Action W Action W h[ NRC kleeting en PCS (3/I7.95) Prmide the hesis for the effects of scene generator comperment cnnnectisity to other beloor deck . .. .c en evoluseeca snodel pressure predictions. lNRC PCS Telecen of S/995: Ayeement on descrysian and closure path. l 2403 FRRSCSB 21. ATTGol ose196 Action W Action W NRC hiecting on PCS (3/l7.95) h[ Prmide calculations to justify mennixing is consm atiw for LOCA long tenn coolg lNRC PCS Telecen of 5,995: Ayeement on desenggion and closure path. l 2404 NRR/SCSB 21. htTGot 06e196 Action W Action W NC hieeting on PCS (3/I795) Prmide cakulation to show how much mater is needed to tum mer second hump and to assess snargin is in the 220 spm PCS mater flow rete. lNRC PCS Telecen of 5 9 95: Ayeement on descnption and closure path. l 2405 NRR$CSB 21. kfTGot 06V196 Action W Adien W k NRC hlecting on PCS (3!!795) Preide espenenental basis for ersporation tak;ng place en the AP600 dorne. as it reistes to the dryee of subcochng en the LST dome. lNRC PCS Telecen of 5/9 95: Ayeement on desenpison and closure path. l 2406 NRR'SCSB 21. htTGol 060596 Clemed ActionX N fRC hicetmg on PCS (3/1755) [ Clarify what vahdation sneens: are me validating a hest estimate cede or a conservatiw enhsstion enodel. l Closed - WGOTillC evaluation model is a cemetvatiw evaluation model. l 2407 NRR.SCSB 21. k!TGot 060596 Closed Action [Q ( NRC hlectog on PCS (3/I795) b i Prmide en esplanation of the mined comvetion correlation as k represents a purely flee eenwetion condition and hidihda which correlations are used in each ansl3sis.
% Freecemictionused. l 2408 NRR/SCSB 21. ETTGol 07/2696 Closed Action % N
( NRC kleeting en PCS (4/Ii195) Justify the urli mixed assumption in the scaling model in liglie ofobserud seratification in the IET. NRC PCS Telecen of 5/9/95: Ayeement on desenreion and closure path. Closed This question is the same as RAI 480.378. The respome to RAI 480.378 resobus this snecting open item. l' age- 8 Total Records: 104
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AP600 Open item Tracking System Database: Executive Summary Date: 09/11/96 selecelen: [DSER Section] like *21 And [NRC Branch] like NRR/SCSB' Sorted by NRC Branch hone DSER Sectionf Tsele/Deumption (W) NRC Net Brerich Quession Type Siseus Detail tast hfod Date Staeus sessus IAler No. / 12 Deee NRR/SCSB 21. MTool e7%s6 Cleerd ActiengA/ 2409 NRC hietting en PCS (4/IISS) JustiPr the use ofintemal energy in the pressure equeeson used in scaling snahsen. NRC PC5 Telecen of SSSS: Areement en desmpeian and closure poet Claced This tysession is the same as RAI 490.379. The reapasse to RAI 490.379 resehee this meeting open iscen. 2410 NRR/SCSB 21. MTO-of 07 % s6 Closed Actieng b/ gg w NRC hieeting on PCS(4!IISS) hestify the use of Re rather then Nu in the amulus for scaling and show the range ofparanieters is cowmL NRC PCS Telecen of 5195: Agreement on desenreion and closure pedt Cleesd . Tlie alt flow in the PCs riser was shownl to be forced cesweetten dominseed Ihr shell toesynessures 2 oF er snare then the omheent air temperseure. Calculations for the rimer in Appendix B of the scaling ,g analwis2 shnw the riser Reynolds number is 35,000 for a shell seinperseme of i17.5 oF wish air and iJ heille temperatures of i15 oF. The ymhcted Reynolds susndiers frens Refence I and the scaling enelwis are sirnitor, shhough the scaling snelwis is more conserwise. Cenenpsently, the Nusseh number in the riser annulies is evected to be mell correlseed as a ibaction of the Reynolds number-The heat and nimas transfer relidation repret3 shoui this correlation is Mid, and the scaling analwis shows the Re3nolds number range in AP600 is cmmd by the range ofseat desa. h is necesserv, but sent usefficient, that the range ofNusseh numbers in the pies be cowred by die nest deia. Sufficiency is prmided by achiesing Nesseh numbers in tiie correct flow regime, and the cervect ihm reginne is forced comucticut Forced comection Nuesch numhers are schiewd by simulmeing the asuiulus Reynolds number Cenneupsevelv, simply scaling the Numach number is na sufrecient. References I. D. R. Spencer.*Sulverting Information for the Use of Forced Comection in the AP600 PCS h" NTD-NRC-95-4397, February 16.1995, Westinghause Electric Carperseiost
- 2. D. ft. Spencer." Scaling Analwis for AP600 C - 4 Pressure During Desigpi Basis Acculents
- NSD.NRC-96-4762. July 1,1996, Wessinghoune Electne Corporatiest l
- 3. R. P. Ofstun. *Egerenental Basis for the AP600 Centemunent Vessel Heat end blass Transfer Correlations". WCAP-14326, hierch 31,1995, Westinghouse Electric Corporaisosi.
NRR/SCSB 21. MTG.OI 090395 Action W Action W 2411 k NRC hietting en PCS (4/1ISS) Emernal cooling I cowreges I wetted fraction: Evaluene development ofwetting cerroge model in light of:
- preheating ofdome
- scalability of filne needel to AP600 - cowesge ofentire range
- different cetrage in model (seripes continue to narrow) vs LST observation (stripes constant width)
^
-insicertainties
- thether ====isivities to cowrege lNRC PCS Telecen of 5995: Agrea-amen desenpeian and closure peelt l Page- 9 Total Records: 104
AP600 Open Item Tracking System Database: Executive Summary Date: 09/11/96 Selection: [DSER Section] like '21" And (NRC Branch] !ike NRR/SCSB' Sotied try NRC Branch item DSE3 Sectief TitleT)esmption (W) NRC No. Branch Questica Type Staeus Detail last Mod Date Status Status t,ner No. I IAr Dane 2412 NRR/SCSS 21. LETGol esm396 Action W Action W NRC hiceting on PCS(4/II/95) For LST 219.1, at fewt C the : ...,~.;-, "giiwes". Attempt to assess misether it is a indication of eyout, a lasting effect orpreheating, or an indicathwi of the thermacouple being on the edge of a water stripe.
]N'etC PCS Telecen of 3/9/95: Agreement on description and closure petit l 2413 NRR/SCSB 21. MTGol osm196 Action W Action W NRC hieeting on PC5(4/1ISS)
Pem% semith%s le noding fee the AP600 distrihuted parameter model. Some logie migPil eenchsde, earne plwnenwnen -> same sire node. The alternatiw is for the NRC to consider this an additional (big) uncertainev. lNRC PCS Telecm of 5/9.95: Agreemere on descrignion and closure path. l 2414 NRR/SCSB 21. AITGot osm396 Action W Action W NRC hiceting on PCS (4/51,95) Evaluate separately for the AP600 the effects of:
. heat sirdts
-interior condensation snodel
- seratification lNRC PCS Telecm of 5 995: Agreement on desenption and closure path. l 2415 NRR/SCSB 21. htTG41 e60396 Action W Action W NRC hiceting on PCS (4?!I/95)
Prmide information on mater cmerage model:
- model applicatim to coating and aging
-remet after drvaut lNRC PCS Telecen of $495: Agreemere on descrysion and closure path. l 2416 NRRSCSE 21. kfTGol 069396 Action W Action W NRC hlecting en PCS (4'll 95) b[ hiergin n t'ncertainer:
-leak at klAE releases in comneional n AP600
-Img term ireegrated heat. Best Estimmee n PCS evaluation modet Klargm between calculated conditions and those used in EQ and radiological as compared to conwntional plants.
( [NRC PCS Telecen of 5995: Agreement on desenpeion and closure path. l 2417 NRR/SCSB 21. MTGol 064396 Action W Action W g[ NRC klecting on PCS(4/1I/95) Add 3D : ..,m.: ; compensons to add cordidence to WGOTille prechetiese ofiniernal fields and trampart processes, Need to look at this for the 6 priordy LSTs. lNRC PCS Telecen of 59/95: Apeemese on desenpaion and closure peelt l 2ilg NRR/9C88 a l. MTGot os939s Action W Actiese W (M NRC hlecting en fCS (4/II/95) Include an assessment orthe agreemese between WOOTHIC and LST for all 6 priority LST with local compensons ofheat flum (vie delta-T) as a function orelevaticut lNRC PCS Telecen of 5/9,95: Agw on deacnption and closure push. l Page: 10 Total Records: 104 .
AP500 Open Itent Tracking System Database: Executive Summary Date: 09/11/96 Selecties: [DSER Sectionj like *21 And [NRC Branch] like NRR/SCSB' Sotted by NRC Branch l'' DsER sectieaf Titlessompties (W) NRC Breacti Type P.seus Detail tmlMed Dese . stsees st.8ue imh I tm Dese No. Queussen 2420 NRR/SCSB 21. MTool e69116 Action W Action W i NRC Meeting est PCS (S/I195) Explain the low sensitivity of AP600 pressure reopense to reductions in emmel heat teniowl. put it in amns of tie suergy partescrung to intemet heat sies, intemel alunie, and ensemel heat renunst. r 2421 NRR/SC5B 21. Mt04E ese19s Actin Action W NRC Meeting on PCS (5/1195) hg Preide to NRC the revised post- set stesni peronieters for the IST Idind test. l r i f t t f Page: 11 Total Records- 104
AP600 Open Iteal Tracking System Database: Executive Summ:ry Date: 09/t1/96 Selecties: [DSER Sectionpike *21** And [NRC Branch l like NRR/SCSB* Sotted by NRC Branch ineen DSER Secessenf Tiele!9escriphon (W) NRC geseus ter Deer No. Brande Quesanon TWe flesmes Detail Last hied Deee sessus beer No. I 2483 NRR/SC5B 21 RAlot cams Action W Actissi W NSD NRC-964731 (WOOTH'c MODELS AND pilENOhlENA) ADEQUACY OF THE hilXED CONVECTION TREATMENT The niedet used for neimd comuction is def's ied in the report " .the egereneneel basis for WOOTHIC lust trasufer cemisteese ("Egerusieussi Basis for the liest Transfer Ceevelmeissu selected for klodeling Heat transfer from the AP600 CW Vessel," PCS4)SR4104. Wessinghouse F.lectric Casp, August 31.1994). For opposed mind and forced comuction, the Nessek manher. Nuc is stated teure to be sirven by NUc = (NLYsee**3 + NUferc"3)"(l13) (I) mineve Nufree and Nurere are the Nusselt nundiers calculased for See and forced comiction, respectinly. For assuems niiwd comiction, the comistiesi is NUc = himi((slu(NLYrw"3 - NLTerc"3))"(I f3)-NtTree,0.73NtTec)(2) No reason was ginn for applying the snuhiplier 0.75 to Nufore hut niet to Nueve. Nase mise that F4 (2)supressues a change fresa die WOOTHIC niiwd comiction cervelation as presiensiv cited in respesme to NRC Quession 400.14 (Ref. ET-NRC-93-3966, leeer Sessi NJ. I.ipensle, Wessingpiourse responses to reipseses for addiesenm1 informseien en the AP600. Queuesese 490.14 September 10,1993.) missue in esp =s== (4) bash Nufere ased Nufree were nashiplied by 0.73 hased on the Eckert and Diageln data base. A; * - is resquired since F4 (2) win newt give Nuc less than NuGee mtute it seems to be urI1 estahinemed that, in general. amnissed sniwd comiction can giw rise to heat transfer ruees that are less dien diese inylied by either free w forced cemiction castelsesens alone, utsen Nefere Nufree. No sessements lisw been neede hv WEC as to whetlier eisher time LST or she AP600 enehus conspend to the opposed er assueed comyction case. h is egected shut the assened comvetion case asylies ewept, possihiv. in regions minese she rising plume is cuenactingIIse conenamnavn shell weH. In any e eat, musce inchsemg miwd comection appears to result in sigreiGesnt increases in heat tremfer, it is esideve that the forced cenwction cemenbution is irnpartase. In the older code wesien, she user was required to specif( miiether the Eve er forced comection correlseien mis to be used Homewr, it is not clear ufuther she resuhs cited for WOOTillC I .0 mere chasined with free or forced comuction being specifieiL WEC needs to clarify this point. In a prescissaien to the NRC (Nes ember I tl6,1994) sesuhs erIST anal ws 3 (Test 212.1) mee cenyssed using die niiwd cemection tremenient wesus the tressment wish Dee comection ontv. At the end erthe calculation, she gauge guessure was about 20% hider in die case mich free comection ontv. The effect is of the same order of--- ,,
- as the margin clainted for the AP600 anal3 ws. Ilence the snixed comtttien effect could be wrv ingnetant to the AP600 certificesiasi case.
The pressure calculseed assunung mixed enmection was cessederaldy closer to the esperenental whee than was the calculseien assunung free comiction only (ewn she mixed camection surpredicted the pressure somentisey Itemeur,inecyal resuhs alone sney not constenute an adequase test ofsiendel windstion as there are many mais that compensseng effects can 3i eld reasonable integral esult conyansons enn when same of the important phenomene are not being well serresensed. ! I I This concerviis heightenced by the wiecity cesapermem presented in the Nowinher 1994 eneeting, The noised cosmeteen calculseed by WOOTIIIC will he ! wenitiw to the forced flow wiecieses WOOTillC calculseen, since it is ilmene wlocities the code will use in evaluneing the forced flow component of the i mixed comtctioni cervelation. For Tess 212.1,ihe calculseed wiecisies were .t3 A's, utiile the nuesured wiecases were only I-3 R's. For Test 222.I, the drscrepancy mas ewnlarger,10 fUs (cakviseed) u I R's (espermisevent). Assumag smourseed cosidasons and a 10 K driving temperseure difference (it is not kneum irthese assumpeiens are camct for Test 212.1),it is essenseed that Nunee and Nufore should be about she same sneymoede lo' r wiecstwo er3 l R/s, and Nuferc < 0.5 Nufree far a wiecity of I ft/s. For these - Nec should not be sipulicant:y yemeer than Nucee and Nuc neiglie ewn be less - ihan Nufree (ahhoudi nat in WOOTillC wish F4 (2)heingusedk I r Die sitilStien is siet wry Clear. llie calcellmeiele M nuMed cessuctiesi definseely }ielded beGer eyeesIseid wi$i M pressiBres, but die 3 wlocities calculated by the cede for une in the sniwd comtction cemisteen do not spee well milh Gee % - ' values and, furtfiermore, the lateer imply shst the free conwction comission should how been snare smearly camct. It is possilde dist the wiecay sieresuresneues are inaccwate, or that they de j not cemspond well with die wlocities that should be essed in the correlseiens. Howewr, ewn irshis were no be the case, desee is still no validstion for the l wiecieies being calculased by she code and that are used in die comletions. The fact that she niised caminasen gives better ayeevnent with the esperanneal pressure is not wry comincing, since Iliere are nimmy poemshle seasons why die h_A., calcidseien may be overpredicting the i pressures and the seized ceumctsen calculation suay mumly be innreducing a conyensseing error. For esemple, die calculation wish only Dee convection
!nav be ou_ . * ^ psessures because it onessedic_es_nurinss_ankhence. underpredeces se_easm c====sruseous and thus h heat _and suans l Page: 12 Total Recordr 104
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AP600 Open Item Tracking System Database: Executive Summary Dat: 09/11/96 , Selection: [DSER Section] like *21* And [NRC Branch] like NRR/SCSB' Sotted by NRC. Branch heen DSER Secteosif Title /Descnpseasi (W) NRC No. Ikunch Queghan Type Sisess Detail i mtIlled Dese Staeus Semesa 14eeerNo. / br Dese transfer rates on the LST shell If ehis . , ._ is correct the mixed cosecteen correlation is simpiv introduces a counpeanstag error that cancels the efrects of the error in seenne concentrations. 480.277 in Eq. (2) shows, m9ame is WEC4justficadon for appMng the muhlplier 0.75 to Nufbre but not to Namos? 480.278 What heat transfer regione does WOOTillC predict in the LST and Ap600 calculations? Do die IET and AP600 analpes correspond to the ryposed or manneed cosewction case? r 480.279 Insepal resuhs alone may not constituee an adequese seus ornendet validstian; conspensating etracts can yield resar insepal result
. , .__ ewn when important phennmena are not mell reprenensed, anal there is no guarantee that congssuestion occure ;4 JT analwes will necessarily occur in AP600 enelnes. For example.the fact that the miwd correlmeion giws better agreenine wide the expeiusere al pressure than the free correlseion does not prmt that the mixed correlation is more correct; there are snany posaihle reasons misy die See canevecteosi calculatiost may La ,
mirpredicting the pressures and the snixed conuction calculation may he introdmems a compaumems errer. How in WEC using the LST desa to eWabinh ! the validity ofindisidual models such as the mndels for heat traserer, evaporation and condensatiosi, and flow wlocities? WEC should examine the r - '- 2 ofindisidual noodels at a pester lewl ofdetail.eseher than vehing erwirely on integral resuhs. 4:10.250 What is the explanmeion for the large differenen between calculated and measured wlocities in tests 212.1 and 222.17 4110.28I Wlist would he the effect of these wlocity differences on the behesior of the heat trasurer snedel and on the pretheted presures? The forced
. .., _ _.c is important to the calculseion. and in dependent on the triacities nord in the ceminaien.
4tto.282 %1rv are the pressure resuhs in hener mycement with the experuners when WGOTHIC uses a snised comwctiw correlation with wlacities that disagree with esperunental snessurements? 4R0.223 %1ry are the pressure resuhs in hetter eyeenient when WOOTillC uses a mixed comtetiw correemeien rather dien a free comectiw correlseion, uhen the expernnentally nicasured velocities indicate that the free comiction correlation shoeld how been snare serarty correct? , 4R0.224 If the everuneneally eneagested wlocities are inaccurate or do not correatmnd mell to the wloceses used in the WOOTillC costelacions, how mill the wlocisies calculased by the code and used in its correlseiens he vahdated' , 480.255 Are the older (i.e Versiori 1.0) resuhs cited in the model and margin assewment report (PCS4}SR401) and in the SAR. ettained using free comection or forced cemettion? t Respnme prmided sia Westinghouse letter NSD-NRC-96-4751. dated 6 20 96. RAI response preided sie Westingpiouse letter NSD-NRC-96-4788 dated R'S% i I r%c. I1 Tntal Rccarrte- IM
AP600 Open hen Tracking Systeen Database: Executive Sununtry Date: 09/11/96 Selecties: (DSER Section] hke '21 ** And [NRC Branch] like WRR/SCStr Sorted by NRC Branch leem DSER Sectionf Title /Descrilr.ica (W) NRC No. Hrunch Quedian T 3pe Status Detail lad kled Dnee sessus sessus leerNo.i tir Dese NRR/3C5B 21. RAlol 0W1996 Action W Action W NSD-NRC-96-47$ I ! 2484 (WOOTillC hlODEIS AND PilENOhlENA)WG011 TIC VEIDCfTIES AND FORCED CONVECTION For the shell inserier (and also the insemal hest eirdts), the forced convection comlseien used by WOOTHIC is NUm = 0.02964 rex *N4/$))*(PR"(l/3)) (3) t This aggears to be defined and used as a local Nesselt nurnher, nm a glohnt everage. Since the heat trumfer coefficient is giwn by h(x) = kNex/x. F4. (3) vields a heet trennfer coefficient that taries as x4.2 and therefore decreases mich increanng z. - WEC has indicated that the special cocribnese x is niessured frern the pois at which the steem plurne inyects the dome. The fact that the rising plume is oE-censer is also taken inne acccane (thee is, die sero reine is nos talten to be the dnme censerk Details of this tresemem resguire docuenenessicas. There are spienaicus concermng the accuracy of this approach for AP600 and IST analwis because the correlation is based myon x=0 .. , _ ;to the leedmg edge of a pisee, miule in AP600 and IST, xdi is actuellv s stagrimeien pose (or mould he if the surface were perpendicular to the plume wtacit3) The eresenient used will nieen that.coher things being cursal, the forced flow Nuenett number will be higlier on the dome Wien en the walls. Since secem concentrations nimy he higliest in the darne, and the execenal subconhng is highese on the dame, the nonuniform duerihuesen of die heet transfer ccefficums eney give higlier taeal hese transfer than would be chtsweed if an awrage ulee of Nu miere used C. . . - Since x-0 in flee AP600 enes sua repreeem the leading edge of a place as assunned in the correlsesen, WEC needs to either defend this tresemem or else show that the uncertoiraies imelwd have hvile effect. Almo the cKect of sehecchng on the dame is nasch gresser for the IST dean Ilie AP600, and a higlier hest trarefa coefficient for the dnnie may therefare how different efects for IST ansluis than for AP600 analwis. 4110.2 8 6 Additionaljustification and doconsentasson is needed on the tressment of the spatial dependence in Est. (3) show, particularly on the selection of 8'r moto"#- 4110.2 8 7 The acusrecy of the WGOTHIC well heat transfer asyroach for AP600 and LST ansluis needs to be - " the WOOTlilC correlseian annumes that x=0 corresponds to the leadmg edge of a plate, while in AP600 and IST x=0 is actually a stagrisesan point. 41eo.2RR in the WOOTHIC approach the forced flow Nassek number mill be higlier on the dnme than en die walls. Homewr. the efect ofsubcooling en the dome is much grenser Inr IST then AP600, and a higlier heat transfer coefficiene for the dome may thmfare how diferent efects for IST ansMs than far AP600 analynn. How does this affect cede validation for AP600 apphestions? 4feo.289 For each node,is Est (3)insegrated mer the range of x values reguesemed by the node, or is a characterutie value of x defined to represent an entwe range etnodes?
} Closed . Resposee prmided sie Westingpiouse letter NSD-NRC-96-4731. dated 6/2096. l I .
t Patte: 14 Total Records: 104
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AP600 Open Item Tracking System Database: Executive Summary Data 09/11/96 Selection- {DSER Section] like '21** And [NRC Beanch] like NRR/SCSB* Sorted 17NRC Branch ; leem DSER Secteenf Tiele/Dancrigeson (W) NRC Stasma Deenig tma Med Date pensus Seamus heterNo. / IAr Date No. Braneh Questlan Type 340$ NRR/9 CSS 21. RAlot ces Action W Action W p (WOOTHIC hlODElJ AND 14tENOhlENA)FIDW RESISTANCES AND VElf) CITIES In WOOTHIC analyses of Ap600. the relatinly open winnie ahost the operateg deck has been modahead consideraldy neare finely than is amenally ! i aseenipsed in analnes using b J ,-.A noodel (11kt) codes, ewn Wooisde the WOOTHIC IIM niede is being used. die same is ense of WG011 tlc 11kl anshnes for the LET calculations. There are many spieshans to be answered concenimig der valsehty ofsuch esiculations, includmg tysestiens as se , loow to define the iseeveell flow resistances. The issue was discussed wish WEC and leads to the followmg descrqeion. which could he in mor. WEC needs to yrowde a detailed herecepe desengeven ; of how this is enne fee the specific case ofinterest. E For modes in the interior (i.e, an solid surfaces), the flow resistances are set to rero. For other nodes, the flow resissances are gownied tw a friction length and e imiraulic diameter, Dei. For nodes along the shell interior, the friction length is taken to be the distance (onessured along the surface) frten the center of the two ceNs connected hv the flowjur.ction. The value of Dh specified is based uprai the surface area of the shell included in the node. A ! I descnytion is nnt anilable but it is thougin that Dh neuld he calculseed as for a duct of noncircular cms section;i.e., Dh = 4,Wp. mheve As is the flow cross section for the node and p is the length of shell surface within ese node (nsensured perpendicularly to the duection of flow along the surface). This , definition of Dh ields 3 a well-defined resuk when applied to an actual duct bounded by solid surfaces. Howewr,in the present innance. die oniv' veal" ! node boundary is the shell inner surface; the oggiosing node haundary is a virtual houndary separating the wall inade from the adjacere open-wiume node. [ and the location of this boundert is essentially arbarary. j The s alue of Dh, and hence the flow resi'ennce, would thewfore appear to depend upon the duckness of the node, y, nicasured perpendenslarly to the shell ! surface (Dh 4 y, for simple node shapes). Current WGOTHIC practice in to one thuswr nodrs along the walls, but the node 113-~ is still probabis L greater than the turhident comecthe boisndary layer thickness. In any case, it is not clear that the correct sluckness is being used se ugm irue* t s clocities along the well. Ewn if this could he dcwwwintrated, there neuld revnsin the apsession ofstether it is appropriate to use a wiecii> . en by global [ free convection effects in a local forced com ection calculation. [ 11 is also necessary to assume a value of the friction factor in appl3 ing this approach. WEC has indicseed that the code calculated this value;it is rue en mput. This shnuld be denenhed in the GOTillC technical reference and has not been changed in WGOTHIC. ' Die closest approach to a descripeion found m Appendix A of WCAP-13146 is that, for annular flow (liereid film on a tube or pipe well), fl = 0.00$(I + 75 I),where I is the liquid wlume fraction, utiich uvuld ,,. , he wry sne9 for this case. No definition of fl was foiend but, from the usage,it appears tolie equal to(114)( Pt v2'2)) uluch
, j rneens it umuld be capsal to l'4 the nummcal value of the friction factor used in the Darcv equation, P-Itt/D) v2/2. Ghen this dermilion, the friction factor in the limit I = 0 is equal to what was assumed in the CONTAIN calculation of free consection from a piste.
The sertical componere orthe wlocity in enher a lumped parameter or subdivided mlunie is deternuned from Espsation 8.16 on page 8-5 of EPRI TR- l 1030503NI.or page A-107 of WCAP-33246. It appears that a factor of two may be amoung froni this equation. Consider a cell mhere there are two vert; cal junctions, one oss top of the wiume and one on the hottom. if there exists equal flow in ami out of the cell dien the equation appears to double cours shis flow. WEC neceh to exannne this descnpeian of the flow velocity model and, if the niedel as descrihed is in mor, WEC needs to determine whether the ( mer actually exists in the code itself. 480.290 A detailed descnytion needs to be presided showmg how inte. cell flow resistances are calculseed for cells in an open wlmme. The IST model I r could sme as an esangde 480.291 Does the wine ofdie flow resistance for cells along the shell interior dermd upon the dieckness of die node nuessured perymdicularly to the shell surface? 450.292 If the flow resneance is dependent on an artnerary cell thickness, dnes this imply that the wlocween, and hence the heat transier coefficieves, calculated in cells along the shell intmar are dependet on the cell thickness? 480.293 is there a musing factor of two in the equation for the wrtical congionent of the wlocev (Equation 8.16 on page 8-5 of EPRI TR-1030503 VI. or page A-107 of WCAP-13246)? Do these equations properh represent what is actually used in the code? 480.294 le the flow resneance along die shell interior surface ginn by Eals. (7.29) and (7.31) of Appeindix A of WCAP-132467 Ifso, how is Dh defined? If diese are not the mowningmquations.e how is the flow resistance defined? , Page IS Total Records- 104 l
AP600 Open item Tracking System Database: Executive Sumniary Date: 09/11/96 Selectiea: [DSER Section] like '21 And [NRC Branch] like 'NRR/SCSB* Sorted by NRC Branch hem DSER Sectiosef Title / Description (W) NRC Net Branch Qaestion Type status Detail last klod Date status status tmerNo. I IJr Date 24a6 NRR/SCSB 21 RAlol 07/3e96 Closed Action NSD-NRC-96-4731 (WGOTHIC hlODELS AND PIIENOh!ENA) POTT.NTIAL FOR A FUNDAhlENTALINCONSISTENCY IN HEAT TRANSFER klODELING The concept of using the huevancy-driwn flows calculated by WOOTille in a imvd flow correlation enay result in a fundannevaal inconsistencv, as enay he seen by considenng the follouing: suppose that the WOOTIIIC approach were used to model heat transfer nom an open infinite volume of gas,with zero Dee-stream wlocity,to a wetical See plate. The applicable WOOTIllC correlation should he the kleAdams hee comuction correlation. Homewr, suppose that the problene were to be nadalized as is the strtical partion of the AP600 shell interior (or the IST mall)in the WGOTillC anal ws,3 siith nodes uhese linear daniensweis are smell compared with the plate length but large compared with the turbulent free comic 1iori boundary lawr tinckness. let all the gas initially he at rest, with the well temperature enmiensined at a wine louer than the gas temperature. As the mall cools the adpecent nodes WOOT111C would be espected to calculate that a douwward wlocity along the u all deirlops, due to the negatin hum ancy of the cooler gas in these nodes. WOOTHIC would intersect this wlocity as a Gee stream velocity, which it would use in the forced flow correlation,it umuld also centinue to one the ElcAdams correlation to evaluate a natural convection cornpanent which neuld he comhmed with the forced flow component accordmg to the WOOTHIC mixed comectuoimodel Howewr,in reality, there is no forced flow and no free-sercam flow velocity; the only flow in the pmblem ;s the flow uithin the turtmle:W free amection boundary la3rr whose effects are already taken into account by the hicAdans free comection correlation. In this problem, any antnbution that WOOTHIC inight calculate from forced Gow uvuld he spuncers it is also doubtful that eten the older WGOTillC treatments utre valid if the tener-specified the forced flow option, rather than the h 4, option. Page 102 of WCAP-13246 specifies the forced flee oggion is prefened for the shell irscrior in IST analyws with extemal cooling, and it scens hkely that this optiori could have been used in AP600 anal3 ws. In the mnre complex situation of an enclosure auch as the AP600 containmern, global circulation (i.e, flow outside the well boundary layer) may actually exist as the resuk of the enmhmed efTects of mall coolmg and the entermg steam plume. Houtur, there is no reason to expect that the spuncers forced flow effect in the free plate problem nauld go suay as a result of the carrylestics of the rest AP600 containment analysis. It is pensibte that the spunous effects would be small enmpared with the forced flow selocities that WGOTillC calculates and that the latter correspond to an actual Gee-stream ulacity for which a f<wced flow correlation is apprepnate. Iloutwr, WEC has not shoun this to he true nor has any similar evaluation been found in documentation available to the stafE Esen if the spunous forced flow effect discussed here can he shmw to he negligible,it umuld remmia to be shown that the forced flow wlocities calculated hv WGOTillC are correct in the sense that it i. appropriate to use them in the forced flow correlation. g 480.295 It can be argued that the use of a free comyctiw velocity in a forced flow cenelation can leads to a significant spunous enhancemers of heat N trarsfer en the shell irnerior. Gisin this, evlain uhy the WGOTillC approach and resuhs are valid for a free cemection prehlem? 480.296 Oiwn that the ikms in the IRT ard AP600 are considerably more complex than in a simple Ave comictiw problem, can WEC show that any I spurious erdiencement to heat tramfer caused by the use of a pas cemectim wlocity in a fbeced flow cerwistion is emellt 480.297 In which LSTIAP600 annhws uns the feed flow eption specified? What option was specified for the WOOTHIC I.0 calculations cited in the model and snargin annessment report (PCS-GSR-001)? l Closed - Respome provided sia Westinghouse letter NSD-NRC-96 475I, dated 6/20.96. l i L Page 16 Total Records: 104
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AP600 Open Item Tracking System Database: Executive Sunun:ry Date: 09/11/96 Selectlen: [DSER Section] like *21" And [NRC Branch] like NRR/SCStr Sorted by NRC Branch hem DSER Sectionf Title!Descriptioni (W) NRC Ne6 Branch Questian Type sessus DsM Imt Med Date . sessus sessus tener No. # IJr Date 2487 NRR/SCSB 21. RAla 07/1996 Action W Action W NSD-NRC-96-4731 {g (WOOTHIC hlODERE AND PHENOkIENA)SENSITIVTTY TO NODALIZATION IN THE LIJhlPED PARAMETER MODE (IMI) The precedsig denewasions provide exarnries of the need for Wemingliouse to examine sensisivity to nedehzatioit ewn in the LPM calculseiens. This escludes sensitivity to the practice ofderming relseiwiv thin nodes in the alume adjaceva to the shell inside surface (e g 0.23 R Tw the shell inside surface versus 2.2 R for the laulk interior,in the LST IMI enelysis) At the Newmher WOOTHIC soview meeting, WEC inecased that their ineention for the LST was te e@est the nodelisation scheme fee cells adjacent to the ireerior of the shell sentil the predicted veloceses enesched the m ", measured wlocities. The LST nodelizaninn sch:sie meuld then be scaled directiv to create the WOOTHic AP600 igut deck. Homewr,it is net clear that a nodalizaison scheme dewloped to genersee wlocieses that snesch the IST velocities meuld necessenly predict the correct wIocities in the AP600. Ifncehing + else,it usseld seem that scaling dissertions and ellmns initial and hairularv conditions would ensuure that tJT wIoceses could not be scaled directly to the AP600. Furthenere,if the velociews in the AP600 are nunctions of the nadelizseien scheme, there is no way to ulidate theme wlocities in the plant Nummcel simmisticas with CONTAIN for the free plaec problem (described show)iruhcsee that the nisputade of die spurious heat tremfer endiencenient can depend upon the nadalization used. The magnitude of this effect depends upon how flow resistances along die well are assumed to depend upon the node thickeness. 41eo.298 WEC needs to cuenine the semitivity of WOOTillC resuhs to the nndelizatica scheme, particulark for the cells adjacent to the shell inserier. 480 299 Does Wtc intend to edium the sinckness ofcells adjaceva to the shcIl irmerier until the preacted wiecisies nimech the everanentally measured wlocities? 490.300 Will the undshzation schenne used for the WOOTHIC AP600 igue deck be similar to a scaled ep wesian of the LST nadelizesion scheme? 4tto.301 Can a nadalization scheme dewtoped to genersee wiecieies that maich the LST wloceses predict the currect wlocities in the AP600? 4tto.302 If the velocities in the AP600 model are functions of the nodalization actieme, how will those velocities he ulide ed a in the plare calculatiers? l Closed - Respome presided via Westmghnme letter NSD-NRC-96-475l. dated 6'20 96. l i i t Page 17 Total Recceds. 104
e AP600 Open Iten Tracking Systeni Database: Executive Seniniary Date: 09/11/96 Selectiest- [DSER Sectionl like '21 ** And [NRC Bronch l like NRIUSCSir Sorted by NRC Branch j leem D8ER Sectionf Tiele/Demaipesen (W) NRC No. Brancti Questeen Tsye Sensus Deemit Imt kind Dune Bessus !>seus heterNo. I IJr Deer 2488 NRR/5CSB 21. RAlot o m ss closed Actien[MNSD NRC-96 4731 (WOUT1 tlc hlODElJ AND PHENOhfENA) STRATIFICATION
@/[ The snedel and snarghe aussesment suport (PC545R401), the AP600 scaling anshiis documnant (D. R. Spencer. *5cehng Analysis for the AP600 Passht Cenemisenant Cooling 03messi,' WCAP 14190, WeninWieasse Electric Corp., October,1994), and ether WesNugpieuse prennessions genereMy passelese ihet the well-snissed connemensW assumpeian win he casimen,sein (i.e, that any effects etseratifiesteen will edece coneemunne pressurest in suppret of i shis hehrf,the snedel and snergin assessenens report (PCS-GSR 001) preseves See and forced cuewctiw nues transfer coeflicwens dIuserseing the well- l known increase in steasn condnuation roers mieliinciensing steam niele fraction. Because sermenfication is equected to increase serene concenersticas show the operating deck, where the PCS sesrfaces are,it is amiumed thse seratificseinn will increase cooling efficweev. Howewr,this ou , T ; the actual sieustion because serseincesiasi can how a nusnher of effects, and not all of three will increase PCS efGciencv. For cumple- i t
I. The argsmne just cited issylicith geesunies an shawateck/helawaleck dichesense, midi a wen-aited " .. show die deck; hc=*ever, some I.ST does indsesse that ehere is anme sorsti6cueian show the deck and Freude riumher scaling indicates that the sendency towsed sweeincation should he yester ! in the AP600. Ahowaleck stratiGcation terub to reduce the pC5 area our which heat transfer is fuWy efreetiw. While Weis efIect prehehty cannnt he large eneisspi on the shell interior to defest the esdinaced condemation effect of the liiglier secens concenernesess, the reduced effecthe aree min also affect the hese transfer from the shell etener, if the leteer is linuems to the toast heel transfer, the net effect ofseratincation could he reduced heat ersefer. Under these conditions, anunung a wellasiixed censeuenent could be noseconsen1sthe rather than i I cessen sein. CONTAIN calculations have hece perfanned that ilhnersee this poseswisi for noncensentiani, albeit for a wry manproact3pic problem.
- 2. On the eeher hand, seratiGestien could mean that. Ibr a giwn pressure. the dense is hester then it wasId he for a mellasiiwd ceneminnema (this unuld !
siecessarily he ense ifthe ,. . were sequessed evenshere) Since cumporation roses are a steep functien of temperseure, this efTect could enhance heme remoul from the dnnie evence. The utilaisited calculseien would neglect this eflect,uteich would tend to snake the calculasica conservatin.
- 3. Serseification could reduce seesm concentrations below the operating deck uttere niuch of the c - .; insernal hest sid capecsty is located. Thus, seratification could reduce the effectiwness of these heat sinks perhaps migreificosalv. Wlule the seau4ing effects nisv not he importane for seesdv-state snel 3sis, ther could he wry important for trasmients, includmg the calculation of the peak pressure reached folleming core reflood.
It is evident that there are a niunher ofeffects, some tendmg to enske the mell.snited saumpeian covien9stin and some tending to make it nonccomensne. Ilence no bisnet conclusions are likely to he pnssible as so utiether the wrilaniud assumpeian will3 ield consen,stin resuhs. The concem nouse he considered for the specific scenenos ofirecrest. Wish the exception of the third efred enunieresed shmt, the importance of the unricus effects offereedicseson nuev be reduced by the fact that the dnmenant factor._ * ; hest rejection from the m _ :.; is the la ment heat of the ewenial fdun cisperseson. During the critical time perind at which the pressure transient following reflood is tunned around, all of the water applied to the sher is beinf euparmoed increases in the PCS hema and mass transfer ! processes casuun increase this component of the heat rejecticut and decreases in these proceumes will not redence this consponese unless the decreases are sufficient that all the a seer is no longer hemg etaparmoed. anni thug that is thoogle to he unlikely. Nose that the LST eipennienes are quise nonroectypic ( in this regard, in that the amoines of water applied to the s4irit substantially esceeded mperation tales, and the effect ofmwer suhrechng is much more unpartant then in the AP600. For the third isan nneed show (reduced iseernal hest sink efficienes), this insnuishiev argunient does not apply. Reduced hest uptake by the insemel heat
. sids necessarily increases the amount of hese that ausst he eejected by the Pr's in order to turn the pressure transient around. Furtherneare,the wry fact ihet the dnnunent emerm al hest translier process (water evaporation) is fixed independently of the censommne temperseure could sneen that a relstrulv large increase in centens ment lengierseure (and hence the pressure) migle be needed before the other processes invahid could micrease ental PCS heat rejection sufficiently to nnyensmee for impaired insemel hest sid elricwierv.
The scaling ansluis in WCMI4190 provides additional imiglet isso the potevesel esportesice of the insenallest side. The snesimum AP600 pressure is calculated to be at shout 1000 s. The -poup for the intemal heat sids at 1000 s is 0.38 edtile the -youp for the exeernal egershon at 1009 s is 0.382; thus, the insemet heat sies are almost as ingerisse at this time as is the u., _ ~ ._ and bodi processes are nuove importess than any eehers. Furthermnre, the internal heat siset -peep is penser dien the shell ersporation puup at times less dien 1000 s. Haece, die insemel heat sids may play an important role j in the . response up to and inchnhng the time of the peak pressure Anydning taist could defeat this role ceuld how important '__ , - - __. The I_sT e,penmnas commet in duneetwo resolw this issue fer sewrel re ons: (I) it is pn=ent, me,ortant for transemes and the LST cyninwnes did not sinndmee the reflood transient closely;(2) the intemal hest sid especsty in LST was usadersceled relatiw to AP600; and (3) the AP600 is espected to be mate subject to .;. "" disse die L5_Uecshey For seinew Page 18 Tolai Records. 104
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AP600 Open item Tracking System Database: Executive Sammyy Date: 09/11/96 Selecties: [DSER Section]like *2I And [NRC Branch]like NRR/SCSir Sorted by NRC B anch leem D5ER 8ectusif Title /Desenpeices (W) NRC No. Brancle Questien T39e 9tsaus Detail Imt hl'd Da's 8'n'"s Status tener No.1 12 Dese The curreve WEC arguniens sieed se he estended to show that either the potensielly non<ommerweive efects erneglecting stratificaterni are sninor, or else apprornasely designed sensitinty seudws to bound stratification efects should be performed 480.303 WEC has stated that a utilanised conteaunent assumivice is conneeneht. Ilowever, assne of the efects of stratificasson sney be non- [ i conserwein, meking it difficult to support a Nedet claim that a wellanized -.4.; will yield conservuein resuhs. WEC needs to identify the posentially rem <enners asne effects of serstification and demostrase that thev do not%. ~ : Wie case for design certifiestices 480.304 Does WEC spee that sorne IET data indicate that there is some stratificatiesi aime the deck and Freude numhee scaling indicates that the a l sendmcy tesard stratifiestica could he yester in the AP600? 490.305 The effects of stratifiestion in the IST ev. ...-..n are quise nonlmempie in that the amounes of useer apphed to the shell substantially p exceeded evaporation races, and the efect ofuseer subcoohng was much more irycetant than in the AP600. These issues need to be addressed as to their unpact on the AP600 anahws. 480.306 The WEC scaling ansinis indientes that intemet best sids are almost as imperant in 1:. 4 the peak pressure as is es aparation, and twgh processes are more important than any nehers up to the time of peak pressure. As a resuk,the effect ofserstifiestion in reducuis the cKectiwness crinternal heat sids is potentially irgortant and needs to he addressed j' 4110.30 7 The IST evennames cannot in themsches resolve the issue of stratification redeemg the effectiwness ofirnernet heat sids becaine the efect h primarily importont for transients and the IST evenments did not cle=cir sirnulate the reflood transient. In addition, the internal heat sia capacity in IST un enderscaled relatiw to AP600, and the AP600 is evected to be more subject to stratifission than the LST facility for some accedere conditions. The efect of these issues on scalmg LST resuhs to the AP600 needs to he addressed.
] Closed . Reprmided na Westeghouse letter NSD-NRC-96-4731. dated 6'2036. l I
T Pape- 19 Td Records: 104
AP600 Open Itent Tracking Systent Database: ERecutive Sununsry Date: 09/11/96 Selectiem [DSER Sectioni like *2l* And {NRC Branch]like NRR/SCStr Sorted by NRC Branch leein Tiele/Descrtyeien (W) NRC D8ER 9eceseuf Ime kled Dune geseus geneti im h i Im Dune h Branch @maien Type Beatus Dateil RAlot eM096 Closed Action ) NSD-NRC-96-473I 2489 NRR/9CSB 21. [WOOTillC hl0 DELE AND PHENOklENA) Tile htSLB ACCIDENT SCENARIO ' kluch of the snelwis effort has . ' I the deuhle-esuled cold-leg gustineuse (DECID) occtered, and die blSt.E accideia neeries eignal assessiest klargins classied for the blSLB imung WOOTHIC 10 are actuelle emeller than these cleaned for the DECIE. Odier enmivsen. ancludung some leiddy
, CONTAIN seauhn, alue infl y "rY 'm'Il neergum for die klSLB,
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,J The ddrevence lweiseesi the WOOTHIC l.2 and WOOTHIC I O results for die klSLB dame were neced in die usedel and ussrgin ammeasumme seyest (FCS.
G5R 001) suggest dise the nursedfested cesistceiese issue could he especesth unpartant for blSIA (Resules presented indicene dent the sut effect ordwse I changes is a nigreiricant increase inn the calculseed neergut e g., frene 12.2*6 to it.9'.ef desipi pressuse for die DEClJG LOCA and frein 5.4*4 to 23.6'. Fer the klSLB se full pener using SAR censerveerw initielbounderv condesens in all cases.) Due to sneeni jets ismyingsms en structure surfaces, it is to be esquected shot a forced (or mised) comection tresemese actually will be the most arguepnsee moedel to use for at least some times and leeseiens esing a klSIA Honewr, WEC needs to esiplere sensinisiev to forced flew wiecisors used in die -- - . and te vehenee die vehses used in calcuiseinem unended to support desipi caveiricatien. In addesen, there inny he locassens for which die elliiculties will:11 e forced / missed caeniction tresenient that mere discussed presieusly apply to blSLB alme. L_~ - enreds to he adevemed fer the blSLB m mell as for the DECLG.11ee steese source is se a teidner elension in blSLB dien in die DECIA3 which could rewr serseirication. In sedieien, argumenes giwn by WEC (D. R. Spesecer." Scaling Anahsis for the AP600 Passin C _ - Coeling
^
- Electric Corp Octeher.1994) as to mere mixing can tie espected in the AF600 are based upon a scene source ;
S3 W WCAP-14190.W- _ location in the seese geeserusar. _ , - and was4d not andy to the klSIA enn if diese orpenseses are ecceperd Ier the DECLO. Howieser. secani mources during the klSLB may he serung nieuglito venuk in turbulew mixing ershe cemennuou e _ ,precludwigseratificatiesL WECneedsto i preide nieure enehses of the pesentiel for swasificasien in the blSIA 480.30s What analyses and seemitisity sendies has WEC perfenseed (or is planens to perform) for die ensin steam line break (klSIE) accione scenario? ! f 4so.309 rer klSLB.how imperene see die mixedreeced com= tion imens 6.cumed eminusivt g@( ' 480.380 Whee are the flow wiecieses samumed se unricus liese aid locasions miehin the casessement for die blSLB anehses? 490.311 For the klSLB, whee is she unledstiesi basis Ier the wlocities calculseed by WOOTHIC for use in the correlseiens for forced and'ce mixed
} comiction?
l 480.312 What is the pneesenet for seruedication to occur in the klSLB?
-pressure that resuhs? j k 490.313 If seratireestien ews occur in the klSLB, meset are the inyheutinum for the sneximuse -
l Closed - Respense prmided sie W - . letter NSD-NRC-96-4751. deced 6/2096. l l t E a Pape- 20 Tolai Recordr 104 _- _ _ sr . - - . - - - - _ _ _ _ - - _ _ _ - _ - . . _ _ . _ - _ . _ _ _ _ - _ - _ . . _ - _ - - _ _ - _ _ _ _ _ _ - - _ _ _ _ _ _ . _ _ - - - _ . .__-_
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AP600 Open Iteen Tracking Systemi Database: Executive Sannnery Date: 09/11/96 see.ee : tosen sectioni 11e= '2:* And pac neanchpike muuscstr soned i,y NRc seanch i Ihne DSERa " TIlle9escription (W) NltC No. Brancti Quessian Type sessus Detail last head Dew semens Simous leasrNo.# D Dune 2490 NRR/sCSB 21. RAlet .7/ mms Closed (wuu s rus hf0DELS AND PIfENOklENA)EFFECT OF EXTRA FIEW PATrf At the Newsuher 1994 eneetag, WEC sefereed to a WOOTHIC calculmenne nsa in ihe finite delFerence snede for Test 212.l(A)in ashich a flow podt is meded to connect the steam generator convertment to die dredesided .. (No much path exises lui the actual IET ceedigermanen, but snelegres pode de esist in the APG00.) Considerality snare udsing hetween the show decit and below esett vehenius resulu when die flour pudi b poemsut, as snidit be egpected. However, the secedy sense pressure is increased sigpiiricantly, he shout 3 pai, whicts is ainsomt 30% of die base case gauge preemare (t I peig; at the Newsuher 1994 noseting. WEC reported this increase as being enk 13% but this appears to be retrein to the absolute pressure and is a belle -- i g) No.," . is gian fnr dois rudier uuhutaneial deflirrence. Geer ipsesteen diet ari=es is =tudwr similar resuhn would be einemed if the exers flow pedi mere to be edded to she lumped parameter mnde calculatiest 11eis beleasier andits : ," _. for the AP600 enehws necih to be evleined, for boek ! 1 die reise defterence niede and she lumped parameter mode. as appe,risse. s 490314 In the fusite differeisce WOOTHIC calculseien for Tess 212.I(A) a flew push is added to casuwet die steene generaser . ,- ..-..c to the deed. W ended: , . _ %1er does the seesdy.nasse pressure se :vesse by almost 30%of the bene came esege pressure? 480315 is the psessure miciense neced abow an artifact cribe finise difFereiere approach? Does the same efFect occur wide WOOTHIC in the LPkt? I l490386 %1st aredie* ," ef ehis betnesier for the AP600 analwes? ; eerd . Reiyesme presided sie Wessingliouse leteer NTD-NRC-95-4602, deced I t /3093 l 2498 NRR/5C58 21. RAI4S 07.% 96 Clemed Artien[ NSD-NRC-96-4731 (WOOTHIC hlOIELS AND PIIENOklENA)APPUCABILITY OFTHESCAUNO ANALYSIS: Based upon results premessed to Amee the WOOTHIC code does sesed to yield conse:utiw susuhs in the IET analwes. Oiwn en adeepsmee airehodoingv for i scaling the resuhs cribe IET everwnenes to the AP600, it ener be pensihte to build an acceptable esse for the - . ef the WOOTHIC calculations for the AP600. Hongwr,the efrects ofseratificatiesi and the niiwdforced cemeceira tresament are tsesensielly wry inipartant, but the scaling analwis is hosed upon a wett-mised . and includes only naoural comuction siler die initial blondown period. Heere, die scaling analwis does not permit inferences to be drsms then the LST resules as to what the effects orche seresificasiess and'or noised comyction ," _ sniWie be in the AP600. i Onh she niere deceded WOOT1 TIC snedel seems to be capable of annhting dwse effects. k will therefore be necessary to suseus er bound the unceiteinties these effects produce in the WOO 11 TIC resehn. f 480387 The WEC scaling analwis is based upnn a weltweiised consemunent and includes only natural cenactissa. As a resuh.she sesling analpis ones not pevniin inferences from the LST resehs to be apphed to the effects ofseratificassen and/or mined comwction ,
- inthe AP600. Thisissueneeds i es be addressed.
90318 ff LST resules cearenung die effects ofserstification andfor mined cenaceso a ," are est syylicable to die AP600. WEC needs to essess boundthe _ these effects produce in the WOOTHIC resuhs is needed How will WEC adeems theme unce for the AP600 anelwes? lCleerd- Respesne prmided tia W ." e Seteer NSD-NRC-96-4751,deced 6/2696. l I 1 i t Pape" 21 Total Receeds- 104 L - + _ _ _ _ _ _ _ _ _ . . _ . _ - - .- -
. t AP600 Open Item Tracking System Database: Executive Summary Date: 09/11/96 selectsen: [DSER Section] like *21** And [NRC Branch] Iike NRR/SCSB' Sorted by NRC Ikonch hem DSER 5ecisenf Title /Descriphon (W) NRC No. Ibanch Question Tnne Seseus Detail tast blod Dese Stenus sessus IAteer No. # tJr Deee 2492 NRR/SCSB 21, etAlot (M396 Actism W Action W (WOOTillC hlODEI.S AND PHENOhIENA) ENTRANCE EFFECTS in "Everussemal Basis for the liest Tennder Correlsesans Selected for klodeling Heat transfer San the AP600 Camamuurse Vessel," PCS-GSR-004, Westingliouse Electric Cawp., Augue 31,1994, WEC describes a fennelvan for treating enhanced heat transke at the entrance of the eernal assielus, but unofficies detail is gim, to permit inference as to the values of the gewening irquet parameters dat would be speedied for euher the LST er the AP600 ,
anal > Sea. It is not clear that the tresemevd is based upon entrance psemetries sufreciemly sisnilar ki time AP600 gasestry (two riglit-ande besula at the base of the domicesner a4onung the haar of the riser) to permit apphcability to the AP600 analwie, F.ntrance effects ist the external asuinius are discussed on p 76 where it is argued that ther are small(4*. for LST,2*6 for AP600) and thus ineroduce no num: than a 2*. desertion in IST w AP600 m , _, Ontv effects " 6. heat trender are.- " . " possible reductions (e g., chse to a lanuner region) are not considered. h uveld he desirshle to present sewinisity calculations in order to illusersee the efrect of the enormour efIects being assumed in the noose recent WEC anndehng efrarts. WEC needs to gise a hetterjustificasica for the treserneed no take credit for these effects, I WEC ackmontedges in PCS GSR404 that there may be a region near the euerence for which die now is lemnier radier Gun turbulem as assumed in the WOOTillC snadet Neglecting die lanuner regime is stated to be conserweiw for the sheII inner sneface and nonconmemaiw for the cuter surface. Iloucur. WEC neerts that the efrect in eidier dwection is minar and that it mov he neglected. M is net clear, howem, that neglecting this effect in the ! m1erior channel is restly censneens with taking crede for the enhanced entrance heat trander, since the esdiencensent factors ammumed are appl.ed to the 7 Colhurn liest trender wahsen,which are for turhulent Anw. mhile it is ,,- "",. in the entrance region that any lemmier regien exists. A ,, " 3 ansksis ofdie LST everunewal configuration,in which a snuch nuore detailed Imbal 3memic niedet miss used,is ofinemet here. In tiis ' simulation, there is a higpi local Nussch siumhet in the inanedisse enerance region, which rapidly demanes to a low situe in a lamanar region wheee extent is consideruhly yester then the reginn of enhanced Nu at the enerence; Nu ewntuell> increases substoneselly as the result af the annet of eurbulence. h a ; not at all clear that the net efIcci innegrated our the channel lengih is adiancenerne relsein to what umuld he obtained be simpiv using the Colhurn j inrholem cervessaien mich sie esarance efTects "_ _,". . ; and it seenu symise hkely that she tresenses allowing for enhancement se the enerence while ; neglectuig the tenuner region suey he nesicennm stise. Iloucur,this ,,T ) calculmeiese is for1he LST and it sney he that neidier the entrance effect : nor the laminar region are as important for the AP600. l Ano.319 %1 st whors of the gmerning input parameters fiv tresting emrance effects uvuld he specified for the IET and AP600 anshses, and whe* [ pntificske is anilshle for the whees chosen? ; 480320 The daea home cieed for enerence effects imelus a geernetry eadier different frein the AP6(e geometry; how is apphcability to the AP60L. i geometry estabinhedt an032I H1ist sensisisity sendies how heen performed to demonsorsee the . "_ of the aurance effect? ! 4t:0 322 Since the enhancemem facters are applied to the Colhurn heat transler telues for turhulevd flow, winle a laminar region may exit in the emrance ( regim how is neglectag the effect of a lanuner region in the exierior chassiel censnead nich taking credit for enhanced eurance heat transfer? 490323 Based en ther .J results of a detailed Imiredpiamic nondet it is likety that a tremenient allownig for enhancaneet at the entrance while l neglecting the Ianiiner region may be noncernernein. This innse neals to be addressed by WEC, e i ~ 4e0324 Are carmace efrects and the Ianunar regier as importam for the AP600 as thev are in the tsTs? ! t l i i l Passe 22 Total Reenrde ind l 1
AP600 Open Item Trackleg System Database: Executive Summary . Date: 09/ti195 Selecties: [DSER Section] like *21 ** And [NRC Dranch] like NRR/SCSB' Sorted try NRC Branch llent DSER 5ectiesef Title M '. lese (W) ifRC No, Brradi Queshen Type sessus Detait last kled Dese Staeus Semens tenerNo.I l* Date RAI45 07/3096 Closed 2493 NRR/5CSB 21. Actien[M
! (WOOTillC hl0DE12 AND PHENOhlENA)RilEliWETTING b# The peak pressere fellowing refleed asqueers to be reisehrly insemsei'r to incesuplete wetting ofdie sher (senpung, etc). Cancerns how lisen reised, howewr, thee the "funwale" ecele mening tems actually are not full height represenestions of die wetical part of die PCS, and that these teses were perfensied for a cold sur4ce;% reduced.ecale tests are esM for hensed surfaces.
What may also be iniportant is hane WEC plans to densassersee that the she e l will ceihit adsupsses wening duencesriseles mAar 10,20, er 40 wars of senice. For esempte, die channel will nee he closed to airculshan of anninens mir Group it minich reises the passibilev thes a variety of emiresonemet m_ _ _ sney deposis en shen surfaces our the seers.changnig die miteing cherectenstics. In the siisdel ased suergin assessnerus eryart (pCS GSR. , 001), WEC does neee that the - m.:is dewsned to Arne inspechen ofliest erarder surfaces to *wriFr adeepsese heat trasurer capahsher but it is seat ! espleined hem this mn actuewy be demonanced er what win he done ofis is found me.hility has been deyeded. Sensioisity studies to detensione die sunnunum egen erwening required to earn the transwns around mei@t be useAsl in siis consee. 490.325 No Ibu-scale wening senes ihr a heseed surface how been perfernied. is dois lainesteen of die duas base asymficant? (gM 410.326 How mill WEC denerwesse shot there min he accereshle mettability of the shell ener namnv wars armenice? 4se.327 Ir, ener years of senice, shen menshink is round to he deyided. are incre one mesas by which acespeal.:e wenst= hey con he recevredt i 410.328 I$aw any sensitisity studies been perfori,wd so deternune the muunnuni extent of mening required to tune around die pressure troruwin? If none are swii.we, dier diound be performed.
]Cimed - Respasse presided vie Westinghcine letter NTD-NRC.95-4602. dated Il'30/95 l 2494 NRRsSCSB 21 RAlol 06 M 96 Action W Action W j (WGOTillC hlODE13 AND PflENOhlENA)DOWNCtMIER "
1here is no downcemer in the IST g....-.c h needs to be esshhshed that the effects of the I.-~.-. are eisher sieghgible er are being modeled odequately. While desencemer phenesnens are not likely to be me isnportent as phenomens in the riser there is no epsontientiw information suiteNe. The snargin claimed (hetween calculseed ulues and the design uhse) is only of the order of 10'e nf the seest preussee in some cases, and therefere large effects are sire reqmred in order to he efpasentiel ceneem. 480.329 Can WEC demessersee that the effects of a dennecmer are senpasse:y nondeled' 480.330 Dnes WEC cesmeer that the effects of the donnesmer are sieghgible, and ifso how has WMeni drenamerseed? How can the effects era dmaicemer he quersified wishnut experwnnual validseien? ; g L a Nec 23 Total Recorde 104
AP600 Open Item Trackleg Systent Database 2 Esecutive Summary pseer optt1/96 Selection: [D5ER Section] like *21** And [NRC Branch] like NRR/SCSB' Sorted Ivy NRC Branell le=e DsER sectiosef TIsleDescripemi (W) NRC ; Type semens Detail Last blod Dese anseus gissus Imer No. I IX Deer No. Branch Quesesost NRR/3C58 28. RA848 OMiss Closed 3493 Action [kNSD-NRC-96 4790 (WOOTHIC hlODEIA AND PffEN0hfENA) FINITE DIFFERENCE (FD)CAIIUIATIONS . An essessment of the finine edFerence snethods angleyed in the WOOTHIC code,induding si eusninselen of Gw ,suserial W ' f has pnmded in !
,_c__ _ _ _ conce-ng een use of Wo0TitlC in the rene dMmare moise. has been camp' eta The numacal solution scheme used in WOOTHIC's raise defrmne, enode, first cree,. apnind upsei.I ditferencing for the adwetion terms. is a concers This - - g teclensper, althouth widely used in die post,is luionn to produce sepuficase artirecial(suunemcel) viscimity in edwction doensnesed problesus. Unless a wry fisse yid in the scoutsen drunein is i used. the setificial sinceoWV can denunsee the real laminor and tiirbulent viscosity in the sunulsesen. Sanderly, first<wdee ddfercicag of the adwctinsi terne in the energy eipssteem can come unreshescalk high ihmnal ccsiducthity, leedeg to unreasesialdv i idi heat transfer rates between cells. In t addnion, the extra mising caused by the first order method reduces the ability of the cede to predict eersiificsaien.
Iming aside snore lisndamenest cesiegms shout the underhing nusnortest solution scheme in WOOTHIC, die systial pid eveolution used by Weeiru$ esse in the AF600 finhe diftiemice calculseians egyears to be : , to giw ceedidence in the predictions. Accuruse 3-D rumme diffence solutions twicalk require en the order of 30.000 to 100.000 grid points, utiite the W- ." - AP600 niedel einplope en die erder of SOO pid points. To demomersee the adegumecy of thew nedshimien scheme. Westingpiouge needs to perform a pid resolution seudy to aumens errers in the salueica due to resdelirstien. WEC enev argue that since the rene ihfference results ghe reasonehle comparvoons with evereisenest pressure and temperueure nuessurements,the finite difference solusinre enest also be reasonshh accursee. Ordbrtunsecly, when numerical resehs ers produced frein only one pid a good u , _. mish m .-..;.: does ente " .. _; as asesidatin niidatiert vent upseraitatiw validation. Arry nonimcel solution, produced on any size grid. meses e ccmhmetim of gensical enodehng errors and numerical sobeinn errors. Only when a grid ressenteen study is conducted con an indication of the yid mars he estimmecil allowing gensical mndeling amerscv to he evatussed. Westinghouse needs to clarify the the use of the rmise difference WOOTillC calculatioru in the AP600 desipi certificaticet if thev are to be used for the LST arshws, it mill he necessary for WEC to lugh demnmersee their niidrty for LST (includmg i.. --.6 grid ,. e) and establish the "bridse tothe AP600 niiihtv. 4RO 331 To demoraarsee the adespiecv cf the nodalization schemeol' r WG011 tlc in the resite efference mode WEC needs to perform a pid resciution noudy to asecas errors in the solisti<m due to nedsloration. A an0 332 h WEC ausre that 1._,.c. .., comwegence of first creer upnind methods is casualered to he wry difficult, to the point, for evenple,that the
\ AShlE Journal of Fheids Engmemng mill nne scrept papers that utilize this nummcal schense? How mill WEC demonserste comergence for WOOTillC enehses?
4:0333 What is the role of reite difference calculseions in se Ar600 catiriceiion prems? 4n0334 Has WEC assesmed the impact of the first order method on the shility of the code to pmlict stratificacion? ( leerd - Respcine to 4R0331 480333 prmided Irv NSD-NRC-96-46%. Respnssie to 490334 prmided in WJ-- -- - letter NSD-NRC-96-4790, aIy 26,1996. 1 Page: 24 Total Records 104
I AP600 Open item Tracking Systene Database: Esecutive Summary Date: 09/11/96 Selection: [DSER Section)lae 21" And [NRC Dranct ] lac NIUUSCSB' Sorted by NRC Branch lien D5ER Sectienf Tiele/Desmphen (W) NRC Brundi Tye sessus Detail t/d Med Dune sessus sessus gjnerNo. I lar Dune No. Quessien RAlof OW3% Action W Action W 2496 NRR/SCSR 21. (WOCTilflC MODELS AND PflENOkIEN A)DifTERENCE5 BETWFT.N IN DIFFERENCE (FD) AND IEMPED PARAhfETER glPht) klODE5 There has been some discussian as tojud how effervue die WOOTHIC Enise shfference and LPM nusi sceumRy are,edier den die fact dist mesh sizes , are smaller in the FD niede calculosion. In pertuwler. it is uncertain as to whether there niide be a nienineune adweisen tenn in the fkrw equeenma solwd hy WOOT11IC ewn in the LPM mode,in which came WGOTHIC LPM nondehng could he i * " Afferent toen dist desher LPM ceden, includmg CONTAN and MElf0R. Wisen this tepic mas reised se she Newmher 1994 WGOTHIC redeer nieeting, WEC mediented that the code did indeed espeare niemewinn adwctmiin the Ifht llemmr, this is noe the came acconhng to a paper by R. P. Oneue, J. Weedcock. and D. L Poulsen i ("W. J _ GOTillC hiedehng of NUPEC) llwhegen Mising and Doctrihurien Test M-4-3 " Proc. 3rd he. Cenf. en Cesensunne Desipi, Terasma, , Canada, Octeher 19-21.1994) v hich, in disciuming LPhi esicalseiens in ecsuerction with WOOT1flC. sesses-A lumped paramesee solution causerws nesse and energy widiin a control swimme. Mass, energy, and snesuenemen ese eschunged between solumes through flenpmehs which cesswet them to one snenher. Mensentuen in the ihmysshe cessereting lusigned parameter ishmises u a scaler, siet a wcter upsentity Perfect mising is samumed for each congsenese gdiese within a lungied parame=er casarol volume. Menismesm of the ineenung componenes is dissipseed wishhi e lumped parameter reneret silunie. P usefare. to celruisse mesurel ctrasleeten flow widen a gMie regloei uses lungmed perumeter selenses respnres a speciativ designed set of stdumes and flowpasha. The cremenui of this meding structure susy else mpsire an spieri kneniedge of the espected flow direction and maputodr.scenethmg which in general,is not kneen sheed of time. (Essgdomus sigsplied.) _ _ eductiesi term is sies induded but also sense to show swammens ofsome of the concerm that how I This descripeni not only isnhesses that tese ._ heen cipressed shout esadelizing cren stdunies in LPM codes. To duee, homewr, the WEC AP600m _ do not seens to show much cessideration ! of these problena, especially in connection wish tese flow wlocities to be used in the niimed cenwenien correlsesens appbed to the shell inner surface. In addanui, die acknen tedged fact that the LPM calculseien merpredicts nuting presides anodier vessen to cysestion the LPhi wiecity calculatiem, since it is these wiervenes that gmern tier calculated mixing roses. Further esanunstien of the WOOTIIIC du. _ _ .. slao seems to indienee that it is noe possible for WOOTIllC to transfer _._ Grough a serisig i oflumped parameter cells. In the LPht cells enh how sneu and energy ccamervatien equessese (page 3 7 erEPRI TR-1030503-VI, or page A-37 ef WCAP 63246). Thejunctions shee ccnnect the cells mov indude - -. edwetice ternes (page 4-1 ef EPRI TR-1030503-VI.or page A-39 ef WCAP-33246). Thus one might emisica the code structure as a sensgered grid. Ilcuewr.the adwction ternes are enIv meekly transported into the cessiecting._ _ _ ... cells.unless the connecting cells are part of a suhdisided solunie. The snarusels sense that the - _... adwction terms should not he included "fer flom peels cessiectag two luniped parameter solumes or a hanped parameter alume to a subdivided alume"(page 8 7 of EPRI TR-1030403.V2). 4:10.335 la the Nowrnher 1994 meeting WEC sessed that WOOTHIC carenres anune=ese edwction in the lungmed paranieter made (IIM). Based on an essemstion of the WOOTillC docuninession,the code does not capeure momentens edwction terms in the LPM. Definitiw clanficasica of slus issue is mynml. ; I 4tt0.336 The WOOTitIC documnestian senses that in the LPM.the creation of the nedag seructure nisy siso require an e-priori knowledge of the espected flow direction and magmtudr somethugwhich in general,is not knenn sheed of time. This dnes not appear to be cessimem with WEC's assempe so calcuisse wlocities along the inner shell surface for use in a mixed cenuctiw correlatires. and amis to be addressed. ;
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Pnee 25 Tolet Recortie ID4
AP600 Open item Tracking System Database: Excewtive Summary Date: 09/11/96 Selection: [DSER Section)like'21* And [NRC Branch]like NRR/SCSB' Sorted by NRC Branch item DSER Sectionf Title / Description (W) NRC Type Status Detail last kled Date Status Status Im No. I 12 Date No. Ikench Qeestien 2497 NRR/SCSB 21. RAI.OI em% Cloord ktionk (WCAP-332%) The following queshons relate to "Westinglwese430TillC: A Ccnyuter Code fbr Anahws ofThmnal Hvdreuhe Transsens Fer Nudeer Plert Containments and Auxiliary Buildmgs." WCM-1324.Westinglumse Electric Corp Aly 1992. In en EPRI decinnem. "OOTillC Desip Resiew Final Report
- RA-93-10. gwepared under EPRI Contract RP4444. September 30.1993, aumerous deGeiencies in the documentation prosmied in Agyendis A of WCAP-1324 mee identified. In addition,cadmg errors were identified thee ener also be in the OOTillC wesien WEC used to dewicp WOUTillC. It olycers that the changes required as e e-sult of the desigri resiew report could inyect the validatinn and wrifiestion date heae.
4R0337 Ilow will WEC addreas the documentation errers in WCAP-I324. Attendes A7 Appeulis A does not adequate describe erwne of the OOTillC g cnde features. A ediedule needs to be devekyed fbr suhnutted a final, conglete code desmption. 490 33R llow will WEC address the cedmg errors in the base susion of GOTillC (version 3.4) that was used to dewinp WOOTIIIC7 480339 Ilow mill WEC addros the ulidation and wrification date bene for thosema-.;. that where snelped with the GOTillC sesica found to j canisin errors? Where there any instances when a fit to the 00TillC portion of WOOTillC resuhed in difFerem resuhe when canyered to the predmisly L performed anal3 ws? The staffconnet complete the resiew of the WGOTillC conguter program until these issues are resolwd and the Version 1.2 documentation is submitted. lionerer, the folloning quemiens related to WCAP-1324 else need to he addressed. l Closed - Response prended sie Weatinghouw leser NTD-NRC-95-402, deced 1 I r30 95 l NRR SCSil 21. RAl4N cG01% Action W Action W 2498 (WCAP-3324)1URBt' LENT Il0UNDARY LAYER TillCKNESS On p. 7. F4 (2.1)is ghen he the turbulent (..-- .-...)houndary layw thickness: dete(s) = 0 37(x) trex"0.2) whiL p. $$ infers a tw%ulent bounderv la3er thickness et the base of the theIIinscrict in LST of 0 33" or 0.0084 m. The base of the shell , y,.i to x 3 m in which case the ehmt equaten giws a hcundert is3er thickness of shout 0 OR m. for the stated conditicas;i.e en order of magmtude greater then the 033" estimate. The test aan p 8 else notes that Eq (2 I) gnes a thickneas of 23 inches (0 063 m) for x=3 ft under IET condkiens. If the bounden layer thickness is a sigenficant parameter for the actual calculations, this apparent ducrepency needs to be resolwd. For esemple, if flow wlocities calculated for the nodes adyacent to the shell ireerior are to be used as free. stream wincities in a forced flow correlation, the bounden le3n Wuckness should he snuch less then the m all nnde thickness. Ilonewr, the hounden- le3er thwiness given Iw Eq. (4) is shout equal to the mill pode thickness, for the ( LST anel3 iis. 480340 There is en apparent A..,y hetnren Eq 2.1 en page 7 and the new nn rege 8.susus the test on peg- 55. WEC needs to resolve this app-ent L...-. . rv,.- 7A Tnt,1 prenrrk tru
AP600 Open Itesel Tracking System Database: Executive Sonomary Date: 09/11196 5electkn: {DSER Section] like *21 And [NRC Branch] like 'NRR/SCStr Sorted by NRC Branch leem DBER Secthuif TIsle/Danniytien (W) NRC gemens No. Branch Quemusi Type siseus Deemil last Med Dme ,siseus , LanerNa / IJr Date 2m NR ucss 2i. RAia eni mpg Ani n W NsD.NRCwm ( kWCAP-13246)Foo FORhlATION IN Tile EXTERN AL ANNULI.'S On p. 52. it is neec3 thee fog (i.e., wswr aerosol) con form in the riser of the annulus. k is sessed that some ef this weser seresol ais, conect en the beme and nni chien but will reespersee before reaching the honom, mhv il necessardy re-esspermes is not made clear nor is is clear whether this is en ing=wtsas
- , _ _ The enes of s'ie weser geesent es fog should be tan en into acccans in calculating the oss enumeses. Ifnet lusevasicy forces erhing the flow in she emistus sney be oswessimmeed sesnewhat.
[M 4110.3 4 1 Whv is nseer thes ecleeds em the hafne enemmed to es sparsee before vesching the benem? 49C 342 How does WooTIllC niedet f4 ormative? f In tese mess of the mater preseva es fog taken into erecuse in calculseingihe pas omsihes? Is its efFect upon lency taken into accaime? l Closed . Regmsine preided in Wessinglinine lener NSD-NRr'-96-47sto. dated July 26.1996. l 2500 NRR/SCSB 21. RAIG e6M96 Action W Action W h[ (WCAP-13246)STEAh!DIFfitSI\1TYIN AIR The tresement of the effushiny of seese m air regenres clarificeeian. The iEfrushier. Dv, is sessed on p. 79 to be ghin by Dr = 0.892(14.21/P) (Ti460)"I.8I Ahhough the nemencts.ure list weses that T is newgiersture in degrees F. this equation only makes emme (and only giws vessonable resehs) if T is in detwees Rankine, in mhich case is ghes whses of De shout IO*. Isrger than these ghen by the Wilke-tee ene&ficatiosi of the Ilirschfehler. Bird, and Spotr (HLilBS) mndet for use when securate ulues of hinerv effushities are desired (Ref: R. H. Pewv and C. H. Cluleen (eds1 Cl.emical Engmeers HendNmk. Tifth Edniosi. kicorsu-Ibli Ihnk Co.1973). WEC needs to clanfy the equaesen ghwi for the difhashity andjustif' yits selection. 480.343 The tresemna of the Afrushier of seenm in air reqmres edational clarificatievi based to the AfErvenres as cenipared to the %LIIBS model. 480.344 ShcuM the ;,..r._;_. in the 6ffushity equation en page 73 he giwn in degrees Rankine, rusher than degrees F7 NRR$CSD 21. RAl-Of 1:1795 Closed 2501 Action [ G o f" (wCAr-n246)uoDeuNoor SuncoouNo this weseon orwooTInc ad .u4 how a -ndei rce sube oi.ng go.e uma spr ed u to me sher. The descripnan sad meineien (p 100) ersie appre, ch used to simalsee suhcochng was new s cry clear. Ilounge, if this appresch. and the results etesined using it, see now censidered cinolete, clarificanon is not necesserv. Wlwt is regered is a descripeimi oflum subccohng is being vuodried in the current code.
# 480.345 Where is a descripennn erhaw subconinig is snodeled in the currere code?
l Avl lck.ed . Reipn.ne prmided vis weninghoine letier NTo.iaC-95-4602, asied 11 r30 ss l Page 27 Total Records 104
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AP600 Open Iteni Tracking System Detabase: Executive Summary Date: 09/11/96 selects a: [DSER Section] lae '21** And {NRC Branch] like NRR/SCSIT Sorted by NRC Branch lesse DSER Section/ Title /Descrireiest (W) NRC W Brancle Quesseen Type Seseus Detail las Mod Dese Sissus sessus tener h / IJr Dese NRRfBCSB 23. RAlot cegass Action W Action W NSD NRC-96-4731 2$02 (PCS 05R401) De foNoming quemians telsee to "AP600 Passiw Casessenent Cooling Sy4em Dcsipi Hasis Amelysis klodel and klargin Asensment
- PCS-GSR-001, W-. j Electric Corp June 30.1994.
IET CohlPARISONS The information gisen comats derenpervien efpeak pressures and same etial temperature snerRusssems for four hearhae IET teses (R7, R I 1. R12. R9). WGOTil8C prewnwe remhs are giwn fw lawh the cid wesion (Versinn 1.0) and the new wesion (Versies 1.2). huufficwns discussion is ginn concenung enese eeusets to per nit ment concly= inns to he drawn as to their pynficance, either in terms of the comparuesa mish espmmies er conyansens futuwse the two cede wesions. l'ee esemple, Version 1.2 giws somewhat higher pressures than does Version 1.0 far three of the four eiyerunents. Nene that the acknowledged siendel changes are such as to ehenueste what are claimed to he excess _. . _ in the Version 1.0 resuhn,implsing that Versiege 1.2 would be espected to giw lourt guessures then 1.0. The AP600 compensens presemed in dois document show lewer pressures wide the new wesiest llence the fact that Version 1.2 can gin higlier pressures then Versican 1.0 for these everurirenst snelwes needs to be espleineet in test R9. the calculated preneures are somewhat inun than the . ,,,.... .cuulues (cele. 6.2 and 8.0 peig for Vernians 1.0 and 1.2. respectiwin
.,_.; is 5.7 psig). k is emclear utw the evernnewal pressures for this test are so nisch lower than far Ril (28.1 poig) and Rl2 (29.0 poig)r, the tein cesidstione giwn onn) seem to explain such a large diffemice.
Tenge mere ._., _. . _.; show 'he tendence of WOOTitlC to owelweihet mixing (undevpredict serstificassen) enn in the beschne tests, wfiich had an egien geometry (no germeing ded). Excepe for the feihre to predict the kmer temperseures et eleweions below the operenng deck elevneien,it is asersted ihet WOOTitic piedicts the :...v. A... *very mcII*. Eun aside fenm the poor results se low eleutions, sosne of the esk utsesons differ freni the 3,. . .;el resuhs lav 10 K cr more. The is no donc=ewice as to what these resuhs mean in terms of die potentiel accuracy anser esweerutiun of WGOTHIC for the AP600. 490.346 Insufficiens dricuimien is giwn concersung tw I.5T anelwis resuhs to perniin ment conclassens to he drsun as to their --f._e. A better onctessonn in terns dahe compensens wish esperunent er m , _ .- hetman the me code wesiens is seredent 4fte.347 Ifthe acknantedged mcdel changes ehnunsee escess comerutisms in the Versica I .0 resehn, miry does Version 1.2 giw snmenhet higher preneures these Version 1.0 for livee of the four e ,. .-.; ? 4110.34R intess R9. aw are the csIculated prewares somewhat kmer than the q erwnental whors? %1ist is the sigreificasice of this resuk in ennnection nich cieins of uncmahtional con =ers seiun? 480.349 in test R9. mier is she cak=4 seed WGOTillC temperatiere highest at ine louest elencien? , l 490.350 Wiry are the expernnevnet presmres in tese R9 (2.7 peig) so much lower then fer Ril (28.1 psig) and R12 (29.0 psig). since test enndnions Ann't meesi to explom such a twe difference? f 4ft0.351 What standard of*gandneas" is neing used to decide what constitutes a
- good syvemem" between sieresured and calculseed _..,_: _?
t i 480352 Wlist do the WOOTillC resehs for the IST esperwncms nieen in ternes of the peeemsel accm scy and'or -. . ofWOOTillC for the AP6007 i Reapanee prmided sia Westinghouge leser NSD-NRC.96-4751, dated 6/2096. RA! response prmided via W._..J.a tener NSD-NRC-96-4788. deced 8/5% i
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L I k Ne- ?R Tntal Perewrle Int \, i
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AP600 Open Item Trackhig System Database: Executive Summary Date: 09/1I/96 Selecties: [DSER Section] Inc *21 ** And [NRC Branch] like NRR/SCStr Sorted by NRC Branch
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hen DSER 5ectwaf Title /Descripices (W) NRC No. Branch Questica Ts1se Bessus Detailk Lam klod Deee , sessus Sessus g,ner No. / . hr Dene 2303 NRR/5CSR 21. RAlot 06M96 Action W Action W { (PCS-OSR 00()A"600 ANALYSES Ce ( On p 24ff. resup chemined using Versivus 1.2 are cenyered with SAR resules, but die reasons for die diffennees are not mell idesadied; in particular, seguishity s4i'luserseisig stoicle of she model changes are prunanh respesuible would he helpful in focussng sesenteen on the senare important issues. In the pleas of hlSLB resuhs, seine of the Inse 131ses are the same and it is therefore difficult to deternune which curve . , " to which case. < 4f10.333 The reasons for differences between the Versiesi 1.2 and SAR resehs need to be identified, and the dessunase effects sered to be lughhfeed and oncessed. %1 st is the selsche innuence of the swious snndehng changes enade in WOOTillC en the pressure predictions? 490.354 lies %TC perfernied any sensitisity usadies that i_ . a the importance of nrious needehng clemnges? 4f10.335 11 e pIves of the klSLB resules should he clarified.
- 2504 NRR3CSB 21. RAlot -
069396 Action W Action W (PCS-GSR-004) The folloning guestions relsse to *F.spmniental Dosis for she flese Trarefer Correlations Selected for niedehng Hest transfer Freni the AP600 Cassinmera Vessel" PCS-GSR-004, Wesenighouse Electric Corp Augue 31.199# llUOOT TESTS 11 ese tests are seseed to inulw hessed perallel places under assisting enised com estien conditions. Fiw tests neve enehted. A table sunumerizing test data includes ulues of a Graderennnher,"Ord" and a Reusolds numh r,* Red *; it is not clear how these are dernied (specificelh,it isn1 clear what the clearacterissic length is takai to be: strage generelty imphes it should he bened upon plate specing or Imiranslic shenereer Dh but "Ord* doesni show the espected uristion with "I, Dh* aneming I,is the same in all tests as is implied in the text). Ord ranges froen 2.4x109 to 5.18x109, Red ranges frei i.1xl04 to 3.54s104 (AP600 ri=er salues of Red and Ord are sessed to range up to 105 and 4x109 respecthtly.) The reeio ofpredicted to %a.;4 , local s elues of Nu is pinned ageness rd (x and d underniedy The predicted local Nu is considershh too high for the smalles x/d whees, suggesting that she cierence cffeet trestment is : , , , .a for the expmenental configuration. Outside the nerance region, the pmhcted esperuneraal(PI) eaho swrages I .0R (nuld nnncommerrassm) with inedersee verishihey haandard desistion (SD) of 0.16); trends as a fusiction of x'd are predicted melt for two tests and less well for enn tems. with a fenh being intermedisse 4ft0.336 Hon is the charaderistic lengels defined? 480.357 The prededed local No is considerably too high for the smallem x d rahses. Does this suggest that the enerence effect tresement is 1 . 7. ;.w for the espernsiensel configurssinn? 2?O5 NRR$CSB 21. I RAlot c69196 Action W Action W g (PCS-GSR-004)f.CKERT AND DIAGUILA TESTS These studied assiming and errameng riised cenrection in a heseed tube, heisps = 13.5 A rsed ID = 23.25*; ten assisted comsction cases (no eypened comictim cases) um anshied. InIrt and outlet air pipes and
- dense screens * == located at each end; esiduely, die ends were ont free and probabh did A leek snuch hke the AP600 timer enerence eisher. The patenesol ." - - of the
- dense screens
- is seat discimmed. OrdPr ulues range 6.9x109-7.2s1010 (i.e, higlser then presceutic), Red ranges 3.6x104-3.77x105 (i.e, preestwic).
P/E retics awrage 1.028, SD = 0.272;it is sensed that the esperunensel does show *lerge. , Nanseseus"in sie enguial report and she SD in P/E is eherefore swg comidered egressin. P/E ruties are sessed to he i for three tests with Red < 105 and to decrease wide inuessmg Red; impectiini of the detailed pless suggests this is she desnuiere trend but ether effects numy else be im,shed. The espenniesmal heat trasufer coefficiones were based upon a measured centahne tensperseure, not a hesik gas teniperseure, and this is unggested (wishout details) as an % .Fordieebemedtrend Enersace efrects are are merpredicted to nearly the deyee that was fouul for the Hugne teses but the diffnence appears to be in the calculseson, not the data. 450.358 What is she pesevesel . . * --. erdue
- dense screens"? -
Pnee 29 Total Recorde 104
AP600 Open Item Tracking System Database: Executive Sammary Date: 09/11/96 Selectless: [DSER Section] Iike *21 ** And [NRC Branch] Itke 'NIUUSCSIT Sorted bv NRC Branch item DSER Sectnusf T1 ele @esceipesen (W) NRC Net Hrandi Queue en Type gemeus Detail but Wd Deer sesens Bessus beter No. I tar Deer s 2906 NRR/SCSR 28. RAIOl 964M6 Action W Action W [PCS45R404)SIEOEL AND NORRIS TESTS These imehrd hensed parallel weticsl dsees i um a cemeens unit hese flux, height - 3.s33 R; e teses mien ihe test section open to the betta = == manlyred. UDh ranged freen 3.0 to 24.00.Ord from 6.43x105 to 6.Ix108. and Red Rose 1.63x103 to 1.13sD4;thus, beek Ord and Red see subpresce3pic. Comiction was tressed as assaned miwd cemection PI values awreged 0.857 widi SD = 0.0903. k is sessed that predicted Nu manches esperwnental values fairly well at low IJDh but incressona'G.,,ai Nu as UUh is increased It is also sessed Wass four teses perfarnsed at cessesse tjDh ilhnersee the effect ofpropensiwiv innessmg the loss coefficiere Frani 1.5 to 33.6 (no iderensesen is ginn as to how Guis was dune). Nu is _ _ _c undcrpredicted as flowis reduced 490.359 It is stated that four tests performed at cesseam IAh illoserste the effect cfproyessewis macreasmg the lens coefGcient Ibane 1.5 to 35.6; how ; ns this dree? 2307 NRR;SCSB 21. RAIOl esMgs Action W Action W (PCS-OSR-004)EXPF.RIhlENTAL COhfPARISONS (OENERAL) Esperwnental compernese are prewneed in a may thus needs nwwe evlanation. All the cas,ansens are Ew channel geometry (hested wegical permitel j pisees er pipe geometrt The compernans are peres ofcalculseed and evermiermal local Nu ulues wesus a denensoordens dueence. x'd Neisher x ime d are defined but x appears to be dreence along the channel and d relased to channel midth er pipe dienieter. The local Nu vehses increase approsisnesely linearly as a Enoctiose of xd and mando therefere i3 cht hese transfer coefficienes ,,,.-_. 1 independet ofdessace ifone uses these tatues in a relseien ; of the form h = ltNu'x. His is the cipected hehesiar: excere near the entrance, the hese transfee coefGrient could be m. .. - ",independeseer distance dann the channel. For cheimels, homesw. is is enere inual to dernie the cenerolhng nondimenneenel nendiers in terms of a mieh er h3draulic i dianuter (d). and esshemic h Freni h = kNu d.thus defused these Nunsch numbers should be indepmdest of x/d. except for eierence effects. In general the preseression seenin to imply thus this comession is being used in time test when discussing chassiel geenseenes; e g Re3nsids and Granhornumhers see reprewneed as " Red" serJ "Ord. Homewr. the vahses eflacal No placed in the figures missid snake no snee if ther mere inserpreted in tius m3y (h would , wievesse lineerh wish eneance up the channel if h = kNu d were to he used) Clanficatien is needed In the presenestians of she esperunental . . ._, clarificseian is resprired as to what cervelshan is imed to entain aler predicted whees of Nu (Collers , flat plot forced flow, etc)in the swicus cases and what s alue of the chsrecterneic length is being used to enhssee Re and Or. Justification for the ereatmenes eineen is also needed hecesse, while all esperwnenes are hosed upon chasuwt geesnetry, the IA) whose nry owr a mide range, with scene of the , I values being too small to remeie they-dewleped chassiel finw. 4I10.360 Clarinession of she comession being used in dncuwing channel geemeenes is needed. 430.361 Clarificatinn is requwed as to + hich correlations (e g,. Collern wesus flee passe) are being used to anshie the various a, ......c , what alues of the characteristic lengdui are specifwd for the ennhws. what are the juasificseiens for the whees chosen ; 250R NRR SCSR 21. I RAIOl 06M96 Action W Acti;2 W f (PCS-OSR 004)EXPER!hlENTALCOkiPARISONS(OI.NERAL) (g Compuisons between WOOTillC and esperenent are sessed to 3 eld i "accepeable resuhs" and the calculseed lacel heat transfer coefGeients "denummersee { she proper trends" 4 022 in-eenten wOOTuic anweiresish m.st. iter .ere.,,iied m seiecoms.ie terre. a.e,s e ,,,. .eer . t N r in Tntal Revnrrir 104 ;
s AP600 Open Iteni Tracking System Database: Executive Sununtry Date: 09/ti196 selection: {DSER Section] like *21 And [NRC Dranch] like 'NRR/SCStr Sorled by NRC Branch IBnn DSER Sectunif Title /Denmrtion (W) NRC Type sessus Detail Last Mod Dese samous seseus gene,y f gj, pse, , No. Brancti Queniosi RAlot ort 996 Actim W Action W NSD.NRC-96-4731 2309 NRR/5CSB 21. (PC5-GSR-004) EXPERlklEN TAL COMPARISONS (GENERAL) hM The compemosis offered de show aggroximate agreement, as expected since the basic Nessels ciumher famewletions emplowd are standard Howewr,the report se33 Intle as to what inferences mov he dramvi as to the edeepsacy of the heat transfer modehng for AP600 analysis. In particular, there is no enempe to msylv the results to drew epsontitsein inimetres concemmg the conseratinni and'or the usicerteenties diet must be ellowed for when apphing tiene correistiese to AP600 anshiis. Die folleming specific poises are sioned: 4
- Based upon the resieles presensed. there appears to be no hesis for claiming consers stisen in ti.ese m,.._..-._, predicted to espmmental (P/E) ulues pesier then unity are at least as conunon as values less then unity.
- Resuhn are casuissent with the correlations'being best. estimate (DE) correlations. flamewr, BE anshiis is generally accegashk in this cosecxt anh ifit is m , j hv en emessmere of the uncertainties.
- All the experwnental tests considered imeht an approximation to dimmel geometry but some are charactented by IJD ulues too small to permit full flow dewkyment in the channel.
- In the experwnents. the channels (or pipe) are sunrneericallv heated. mhile the AP600 cheresel heetag is wry asuvenetnc. Heat transfer coefricients for asswunctricalh heated channel surfaces mov not he the same as for ssnunetncalh heated channel surfaces.
~
- ' Not one of'the 23..v .; For mhide resuhs are summarized. prmides experuneneel support for the belief that enerssice effects sipiificantly enhance Iceal No values. In all cows in which signficare ..? - .... ; mas predicted. the ymhction is in error. Conteued use of the enerence effed . _ __ _ .=
m WGOTilfC enalysis reipares a casundershiv stronger deferee than om giwn to dese. .
- Although the esses snel 37ed are stated to correspmid to assessed mixed comectism. there is no coreideration as to mierther the snixed comection fornelstion used gius any impre ement en what sculd he chemined acuenug either natural or forced convection by itself it umuld he imtructin to include Nu numbers for hath natural and forced comedian cakvlated indniduelh. This mould permit conclus.ons to be droun as to utiich process domenetes; whether the snited resuh is defFering sigmfuantly from klax(Nufree.Nufore), and mierther the mixed formulation is offering any inermemme mw hist (Nufree.Nufo' rch 480 363 WEC shawld attempt to apply the resuhs to drew synantitatin idences concervung the conservatisen and'or the uncetteunies that snust he allowed for when applying these correlatiose to AP600 analysis. i I
480364 Besed upon the resuhs presented. there is no hesis for clawmng-. ._.. in these correlaisess. Results are cornissent with the correlations
- heing hest.cstimate (BE) mm ___. Ilouever, BE anshiis is acceptable in this consext anh ifis is _., _ ' a by-- an essessmere of the uncertairsies f' flow mill WEC sedress vicetteinties for the AP600 analyses?
I 4R0365 All the experwnental tests considered imelve an approsimoeien to chascel geonutrv, eklusagh same reauhs were obtemed for IsD values too low to gemide fiefly-deseloped charmeel flow. Will WEC use the w.m. .._ to claire vahdatiosi for heet tremfer modelag in the chaemet, on the shell interne surface, or hath? Justifnation is reipsired for whaiewr applications are ireended. ( 480366 The tw .~;. all imeht suvenetncelly.hested channels (or pipesk while heating of the AP600 chassiet is apsiae as3wuncerse. Ifew Intge en uncertainty does the asynenetry of the AP600 channel heating introduce into the snelysis, miwn the ente ulidation esta are for a synenetncally heated channel? i 480367 The WEC model for eierence effects predicts cohanced heat transfer close to die entrance for a number ofshe iv . .;_. In etwy istance, this pmhction is in error viet one of the 23 experwnents for which resuhs are summerued prmides espmmeveal support for the belief that entrance effects ! t sipiificantly enhance local Nu values. Ilow ones WEC reconcile shis resuk miih the caseinued use of the everance effect niedel in WOOTillCT
}
48036s Does the mixed comtction formulation ght any imprminine our what would be ehtsmed assunung either assural or forced comiction hv itself? It would he insensctiw to include Nu numbers for hath natural and forced coswection calculated indisidually. l Closed - Response prmided via Westingliouse letter NSD-NRC-96-4731, deced 6/20.96. l l Pnee 31 Tolst Records: 104
AP600 Open Item Tracking System Database: Executive Senimary Date: 09/1I196 Selectisse: [D5ER 5ection] hke *21 ** And [NRC Branch]like NRR/SCStr Sorted by NRC Branch leem DSER Sectionf Title'Desmptum (W) NRC last hfod Deee geseus sessus IJaerNo. # 1Ar Deer Na firencle Questien Type 9eseus Detail b NRR/SCSB 21. RAla esw96 Action W Action W ( (PCS-GSR.006) The follouing quemiens are based on *Exymmental Basis Tw the klass Transfer Correlations Selected for bladelirs Cendeumsteen and Ersporation en the AP600 Centamment Vessel," PCS-GSR-036. Weninghaine Electric Corp, October 1994. This decwnent docusses the _._- -- used for Nessett nundiers and firiefly summarires the hesummes transfer anstegy used to define the Shermned (Sh) nenhet and the mass tremfer ceirfricient. Companenns between the code and everwnemmi results are egressed in terms of the ratio of predicted to
- m. . . cal nlues of Sh fw three different sets of everwnemet duas: the Uniwesity of Wisconsm Condemasien Tests, the Odhiand and Sherwond Euroration Teses. and the Wesiinghouse STC flat Ptsee Esgeration Tems. Vahses reported are awrages mw the test usrface. There is suo anenyt to present caseparisens in terms oflocal ulues as was enne for No.
UNIVERSITY OF WISCONSIN (UW) CONDENSATION TESTS in wie tems for whicti campsmans are giwn. the e .i,. ..= im.hed meannns conde. eion rases for a mesm' air minure nowmigihrough a chasuiet sich a cented surface in an apperseus 4iet could he tihed in order to mudy the effect ofindinasien angle upon condmastian reset When the test section was inclined. the text scens to imph ISat the steam' air source uns at the low end (imphimg opposed mixed cemiction); howewr, puhhslied desm:4 ices (see Icr example. l. K. lluheiniemi sad bl. L Cerradmi. "Condemation in the Presence of Noncendemible Genes," Nasclear Esiginewmg and Design 141 (1993) 429-446.) of the n,.. _.. nuhcaec that the meant air mixture emers at the high end (iemphing assissed mixed comution) When the inclination angle is low. it is seet clear that either the *essemed" er the " opposer mixed cemection tresemem is apprepnsee , Resuhs are presemed for 39 tests. The awrage P E value is 0.96n uvih SD = 0.203. P E nlues are planed assinut inchnsesen angle our the range 0 90a. agaime Red our the range 7x103-2.5x104 and assinut steeni mole fractions ( 0.12-0.63) Results suggest a teralency for P/E to increase sligfaly with imvessing angle. mith increasing Red. and uiih decreasing mesm mole fraction.1hese imids are utsk but,just by sinueNy inspecting the data, they spreer to he metistically significant at less marginally (no natimical significance tests are ghen in the Huheiniemi and Corredmi paper). These trends suggest a pcecwial for noncenservatism in modeling the exemer thannel whids, relaihr to these teses neuld be cherecteriard by high inclinstion angle, high Red. . and Ion secem mole fraction for most of the surface. 4R0369 The next inglies that die seesm-sir usixtiere emers at the low end of the apperseus while it is helsewd that it ensers at the high end. WEC needs to check tids and resise the text as apprepnsee 4ft0370 Are the *sssimec wrsus *npromed" miwd cemection classifications appr ynsee at low inclination engles? Riist was assumed in anshring the low-angle expmments? 4st0371 The P E recica appear to increase mich increasing inclination angic, milh increases Red. and wish L. .seesmincie Rection; do these smuk
..l.a that there is a resemiel for noncensersseiwn in madehng the PCS channel?
l 2311 NRRSCSB 21. RAIO OW3tPI6 Closed I QC gg y,p (PCS-GSR-006)GILUIAND AND SilERWOOD EVAPORAT10N TESTS [ These imtewd seudv cf enperation af skmn=" L,lispsid films on the inside of a vertical tube 1.17 m hip and 0.0267 m ID. Lispuid and air une et appmsimseelv the same temperature (i e.,the tems une approximseelv isothennel). Temperatures wwe relatively low. 25-56 oc and opor encie fractiam nwe therefare low. Under these ccahtoons. lasmwicy effects mire ._ " enmunist. Remolds numbers wwe 2x103 to 2.3x104.uith whees under 104 in the maponty ofcases-A total of 71 tems were analyzed. The neeen P/E ulue was 0.925 wi$i SD = 0.072. A plet of P/E sesist Red newsled no evidence of any trend. P, 1 ' s ^ l Closed- No specific spsession. Q4GiAF) /Ja} M {g ey W QM4 gy((- l M J Mor A d 4 tz Pape 32 Total Records- 104
~
AP600 Open item Tracking System Database: Executive Senumery Date: 09/11196 selecesen: [DSER 5ectsonllae 21* And [NRC Eksach] the MUU5CStr Sorted by NRC Branch kna DSER holan/ TitteL , * - (W) NRC No. Bruce Questien Type Staeus Deenil tant Med Dane simous sessus tamarHet i la Daar 2312 NRR/sCSB 21. RAlet osmwss Acties W Action W (PC545R406)WESTINOHOUSE STC FLAT PLATE EVAPORATION TEST 5 The test section was a tweical heseed and wetoed fist steel pisse 6 feet leg An scrdic cumr prended a chassel for forced air floor. Reynolds numbm ranged Sosn 2x104 to 1.2xl03 ;,- _ ___ _ shese are based upon a dissueellr3*eulic 6mmeter shissenti dois is not sisted) The seurage PI value for the 23 teses remedered was 0.936 wish SD = 0.139. A pies of P/E agniet Re3inalds nusnbar sinousd no endesse of any trend 4803 72 is die Rewields nusuber range calculseed hamed en the chassiel in*mulae doesneter? Ifsost, how were die Revneeds mundiers etesmeed? 2313 NRIU5CSB 21. RAI41 07/1996 Action W Action W NSD-NRC-96-4731 I (PCS-GSR.006) OBSERVATIONS The basic abnervuemis en these resuhs are sisnitor to diese for die heat transfer cemisesens. The resuhs clearly show dust die curselusions gise Sh ofdie right erder of-. . "_ and are defeieihie as bene ensansee neues but not uncealitoimity commerwehr emises, No" bridge
- between these resuhs and ;
quenciesehr 1 - . For AP600 eneines is presided: i.e., suo effort is snede to enhasse a quentessant uncertamew for die cerveluhans when applied to lhe AP600 er to , .". namens L _ ' _ for die accuracy and'or commervueisne of WOOTHIC resuhs for die AP600. l the UW condeusehen leses exhibit seine week trendi shst. ir " G to AP600 cendinesu. sussess shut ihr evennent efenpersman a== ihe shell l exeeriee cased be somewhat noncenservaehr. The ether test series censidered eihihised no such trends, hewnw. It is not clear monedier a newe detailed rniew erthe test series and'or of the WOOTillC anal 3ws minuld lead to a better ...;.. " , erdiese differences and whedur dery are of any concern for AP600mehws. 7
. 4003 73 WEC should saempe to arriv the resuhe to drew aguanhement idemices concenung the - and'or die _. that must he alkmed for utern aggd3 ing these camissiesu to AP600 anshsis.
4s0374 Bened upon the resusis presensed. shere is liule hemis for clamung _ . . in ihese camistiasm. Resuhs are cessament with the curreissions* heing bene-eneensee (BE) comiehens. Hounw. BE annhsis is accepeshte in this censent only ifit is ----- , " by an asessament of the uncertannies which has not been remided. How will WEC address unmesuhes for the AP600 anmI3 ws? 4110 3 73 F/E retics for the UW condeismeinn leses enlunit some meek tends suggesting that the tremonient efenperuhen Dean the shell cieerser in the AP600 ceuid he sansentist noncenserswhv. Henevr. no syseesushe trevues in Pi retier mee esident in the eder two test series. A snare detailed resiew . ef these test series and'or of she WOOTHIC anshws emeeds to he perfernied by WEC to preside a hetter _" . - " of dois issue and how it irnpacts the AP600 ane?3 ws. , The comisesens deconeed lerre for heat and nesse trasudier are used for the chamiel and die iseerior surface ofdie cow shril.but they are rios used for the ireernal heat sirets. The Uchids comiehen is used for die iseernal heat sisets. Winile general esperience is that Uchide is espected to he cesserneht.the ' , - _ ofits use for the specific scenenes ofiseerest to the AP600 have met been assesseiL Cienficahen is sIso needed as to whether I WOOTHIC takes credit for superhese in apphing Uchida. Tsiting credit for superheet has been the suliect ofsome densee in the past. If credit is taken for . superhest, it is less clear shut Uchide mill necessanly i3 eld construthe resuha. 4s03% %1st arethe1_ _ ef the use ofdie Uchida comiehen for hest sisdts isoide die cessaanmean? 4803 77 Does WOOTHIC take credit for superheat in appfwng tkhida? l Closed. Response presided sie W- . lesser NSD-NRC-96-4731, dated 6/20/96. l I Page: 33 Tessi Recordr 104 _ _ _ . - n _ -. - - _ _ _ _ _ -. __ _ _ _ - . _ _ __ _ - _ _ . . _ _ _ _ _ _ _ _ _ _ _ _ _
I . AP600 Open Item Tracking System Detsbase2 Executive Seminary Date: 09/11/96 selecties: [DSER SectioniiaW21* And (NRC Branch] like NRR/SCStr Sorted by NRC Dranch het DSER Secteosef Tale /Deemption (W) NRC New Branch Quemeen Tvpe status Detail Imse Mod Dese Stanus thseus tener Net / Ler Date RAla e7'1996 Action W Action W MSD-NRC-96-4649 2514 NRR/9CSB 21. The followmgupsessions are based on the % EC hierch 29-30,1995 ACRS Presentation on Scohnt 480.373 Prmide the hemis for die *well mixed
- sesunglion inchuhng a dncussion of the apparent ~- . - y ofdois assungston hosed on data and 4 (in tenns of the Freude number).
490.379 Winere does die "U" in the correlatinns come freen when the main steam line break (htSLB)is being analysed? Hew vivre e,setiens deriwd. niist asunnreion were used? 480.380 The large-Scale Test air-ennehrs nas aceled by matctung Re3 molds (Re) nurnhers. This tends te resuk in higlise hese trumfer and more rigorous n> containment comyction then might he expected in the AP600. It wei ed men that scaling to the following forns would be ennre approprinne: integral (ildAIv)
%1est are the raniifiestions?
480381 %1ist is the ingact of the pre-hesting of the dnene on the extemet surface film cwding? There appear to be incessestencws hetmeen the snodels used and test obsersations. Ilow is the film scaled to be sure that the correlations used are sslid mvr the proper parameter ranges? R1 tat are the parameters? l Closed Resposee prmided by NSD-NRC-96-4696 l RAlot os1396 Closed Action NSD-NRC-96-4649 2873' NRR.3CSD 21. 4803R2 Prmide a % m;;. of the expected surface a..,,..;-. range for the AP600 (both LOCA and htSLB) and conyere this range to the test range y kN (110 F to I30 F). Prmide this %i . for the tiene period around the peakMessure as mell as for the longemn, shout 24 hnurs. Do the tests emer the expected AP600 conditions and support the see of 20 degrees for " Theta *7 %1 st mield be the impact ofusing 28 dryves for " Theta ? Reference-
- 1. "A hiethod for Deterunmng Film rkm Cmtesse for the AP600 Pensiw Conteirunent Cooling S3 item." PCS GSR403, My 1994.
lClemed . Response prmided liv NSD-NRC-96-4696 l ItAIG 05 I3N Closed 2376 NRR SCSB 21. ActionhNSD-NRC-96 4649 41103R3 Prmide a comperieon of the water L...,,- .. (mensmed for design basis acendent (DBA)evolunteens) for the AP600 PCS to the unter pu, W ....,,..;.. in the meeting tests. Prmide justification that the temperature. and therefore the thermodnammie properties used in the Zuber-Stauh enadelis appropriately cmemi by the wetting tests to utsdate une of the nondel. I k Referentw:
- 1. "A hiethod for C ... _._,, Fihn Flow Coserage for the AP600 Passiw Coreamunent Cooling 5 3ssent
- PCS4SR-003. Mv 1994.
l Closed - Resposee pmided by NSD-NRC-96-4696. l Page 3d Total Records: 104
~ ~ . - . - - - . - - . - - . - .- _ . - --.-- -..- . . _ . .
- e AP600 Open item Tracking System Database: Executive Summary Date: 09/t1/96 ,
selectlen: [DSER Section]lika *2l** And (NRC Branch) lik2 NRR/SCSIf Sorted by NRC Branch flesa DSER Sectamt Title /Denmption (W) NRC , Not Branch Question T31ie Staeus Deemil last blod Deee . Stens: Siseus laser No. I 1Ar Deer NRR/SCSB 21. RAIG es/1196 Closed 2877 Actien[ NSD-NRC-96 4649 490.384 Preside a telde similar to Telde 3 in Ref. I Wiet indudes the follomng data for each test-(t) ese PCS weser sensperature (2) the PCs water flow rsee. (3) the surface heat flux (q*) and (4) the temperseure (T) ened to culosee the lignid fihn properties. These data are regmued to calculosed she g predicted emvrage. If is net alwa3s comidered to be 20 degrees, include the value owd for each case in Wie table and justify its selectiest Sece the PCS
= ster flow raie may not he constant, how is the value ehtsmed for the compensons? Ilow are q' and T determnied fee the conyansens? What is the range of q*(frern the heat fles thmnncouple pairs)in each test? What is the range of the surface tempersusres in the each test?
Reference' l "A kledu.d for Deteimining Fil n flow Cmwage for the AP600 Passive Containwiese Cmding 51mem," 3 PCS4SR403. July 1994. l Closed - Respanne prmided by NSD-NRC-96-46%. l [ 2878 NRR*5CSB 21. RAIG 091196 Canned Action [g NSD-NRC-96-4649 4R0.383 Compare the q* and T tatues from the shore response to the q' and T relues espected in the AP600 (for bash LOCA and blSLB) to demonsersee M# that the test data w .., . the AP600. Wlule the test metrix indicates entv a single m., in an AP600 analysis there are muhiple asial and p radial regions modeled. each with its own set of propeities. Prmide this data for endi reghwi for the time period around the peak pressure as well as for the longterm,ahnut 24 hnurs. Reierence: I. *A hiethod for Determining Filen flow Cmwage for the AP600 Passive Cantninmein Cooling Synent," PCS45R-003, July 1994. l Cloned . Respeine prmided tw NSD-NRC-96-46% l 2879 NRR-SCSB 21. RAl-Os 05 I3 96 Closed Actien[gNSD NRC-96-4649 4RO.3ft6 Since the Zuher-Stauh mndel regeres as irgiut the expected q' and T (the hquid fdm temperature at which the properties are evaluated) and since [ q' and T are liaeh trainient parameters. lum is the mseer cmerage that is used in the AP600 DBA calculated? It seems that the niedel requires ksumledge of the resides before the calculation is pericmied-
Reference:
- 1. *A hiethnd for th ,, Filni flow Cmusge fw the AP600 Posein containmein Cooling Susem," PCS45R403 July 1994.
lCimed - Regense prmided tw NSD-NRC-96 46% l 2WR0 NRRSCSB 21. RAIG e41195 Clemed Actiong SD-NRC-96-4649 Dg 480.3R7 in Ref. 2. it is indicated thee the statninv parameter, referred to as Rref, when set to a specific value, consen seiwly predicts resuhs from the i Eth scale large Scale Tests (LST) and full scale Water Dnenhution Tests (WDT). With the excepsien afene test,this is true. Will a new value of Rrefhe ( hg am .--d to bound all the test does as part of the revised DBA approach to develop a houndmg evaluation model? If the test ranges do not adequatelv . j cmer the AP600 (in terms ofq* and T). can a ulee of Rref he deterimned for use in a houndmg evalemeien model? Refererre- p t
- 2. "SupplementalInfamseum en AP600 Film flow Cmwege kledendology," NTD-NRC-94-4286. August 31,1994.
l Closed - Response prmided In NSD-NRC-96-4696. l 2881 NRR'SCSB 21. RAIG 06m 96 Artica W Action W 480.388 In Ref. 2. it is isodicated that the meathered surface eshibited nierg% ally heteer wetenig charactenutics sinn the unwesehered surface. If during the j life of the plant,the shell estenor is returned so a pre-wesehered condition, when is the impact oflarger values of (30 to 58 degrees)? Quantify ; mergin.Ily." Should the DnA erslustion model Rrerinclude cnnsiderseion of an mmesehered surface io amure houndmg anni 3 ws? Refierenice-
- 2. T " hdbri istien en ape 00 Pilot Plsw Cowreer h" " " - ,, NTD-NRC-94 4286. Aupmst 31,1994.
I Page 35 Total Records; 104
AP600 Open Itern Tracking Systeni Database: Executive Summ ry Date: 09/11/96 ' , Selection- [DSER Section] like '21 And {NRC Branch] like NRR/SCSB' Soeted tw NRC Branch hen DSER 5ectsesif Title /Desmphen (W) NRC Na Branch Queshen T 3pe sessus Detail Eme kled Dese sessus sensus gmee ya i g;, p,e, 2882 NRR/5CSB 21. RAlol 86 esse Actiese W Action W 480.389 Ref 3 prmides the renales of calculehens wish WOOTHIC to 13 LST teses (212.I A-B. C,214.1 A-B,216.1 A-B,219.1 A.-8,-C 222.l. 222.dA . and -B) sul the bhnd test. Test 220.1. Fer each test, prmide a table similar to that ret-a-d shove which includes the parameters used to desmnnie the water cmwege (q . T . Rre( pC5 flee race PCS mater temperseure, etc) Duse needs to be prended for each mened area. As what time in die transsent are these emes selected and how is tese does used to ehtaan the maser cewage used for each test preectiest Were the water emwege dasa , calculseed hefore the seats were run based on the plarvied (egected) stripping speciGed in the test niewis? Refceence:
- 3. "WOOTHIC Code Description and Validmeson," WCAP-14382, klav 1995.
2983 NRRMCSB 21. RAlot twe196 Action W Action W 490.390 No docusssons are preided in Ref. 3 to address efferences between the test resul%sid WOOTHIC results. For esemple, test 212.1 shows WOOTHIC predicting an increasing presse: e while the tem esta appears fairly constant; and test 214.1 pressure predictions are less than Ilie necesured ulue. To what extent are differences enrihuetd to the mater cmwage enodel? Discuss coher probleni nish either the test does or the WGOTillC analyws shot esplein the 6fferences betw een the data and ihr ansl3 wn. Refereisce-
- 3. "WOOTHIC Code Description and Validmenwi.* WCAP-143R2. klay 1995.
2984 NRIU5CSB 21. RAlot onc196 Action W Action W 490.391 In Ref. 3. the resi:hs of the hhnd sees are preided.11 e distritmoed parameter model under predicts the earty pressur- reaperme. To what eserne (eAI are differences enrihused to the uster cmerege windel? To what eteent are differences attrihused to not knowing the test beunderv comhtien for the inlet secem? Since the blind ecs required that the test actual he run and resuhing dass he used to estabhsh boundary cesidstions for the ensI 3 %s.junifk it) use as a hhnd test in the validseien and serificasica of WGOTHIC. % hat sculd be the consequence of sees hesises a blind test as part of the WOOTIllt uhdseien and swificesion? Referevice:
- 3. *WOOTHIC Code Descriptiesi and Valsesenut* WCAP I4382. hiny 1995.
- 21. RAlot 069396 Act;ess W Action W 23R3 NRR SCSR 480.392 If Ref. 3. air pressure ration for test 212.I A,-B, and C,216.1 A and B. 219.1 A -B. and C, and 221.1 are cenyered Oest to preacted). Tw test
@ 219.1B and -C. heliani pressure roeies are also compared. These data are pheed as fised pones wishnue uncertainev. Preide the uncertainev hands for the mesnured seses. For the mes=ured salues, uncevtainsics telsee to. in port, the emertenwy in pressure and lengerature nicasurensenes of the capeured gas I samples, and taking mahiple samples. as well as other uncertannies in anelvring the gas samples. For the predicted ulues, prmide a dncu< sic = of how the planed peines are determined. If uncertainty is included in this dre nunation (fer example estreycession of a test inessurement for %h)then 5 include the appr 9risse uncertaines hand en the predicted vahses as meel. Once uncerteney is included, would any conclusion regardung :- : M_ible
, entributions, niixing or stratification be alEered? Explain.
Reference-
- 3. "WOOTillC Code Description and Vahdseien." WCAP-14382 hiny 1995.
?
"we- 4 Total Reenrde lod ;
e 9 *# 4 AP600 Open Iteni Tracking Systeni Database: Executive Summary Date: 09/I1/96 Selectlen: [DSER Section] like *2I** And [NRC Bnech] like NRR/SCStr Sorted by NRC Branch leem DSER Sectieser Tielei)eemption (W) NRC stehs: Detail Ime kled Dur.e sessue gissue wyf ~ 6 Dme Net Branch Question T3pe 3s96 NRiU5CSB 21. RAla 05/ives Closed ActionphD NRC-96 4649 490.3931he modehng afshe LST, particular the ene region, has clienged than that pressneed in a inesting on November 15.1994 and refemdie as die h g "Subdisided WOOTIIIC blodel* to the distributed parameter model presensed in Ref. 3 (Figure 3-341 Is appears est no changes hose been made in the lumped parameter modet.shis shneld be serificit Juwifv the model presensed in Ret 3 and what impact,if any. the needeling orthe dome regwei has on the WooTitIC resuhs as compared to the old model. Itow are our igues detemuned to account for the acounggrenseiry? The model descrireinn should be equnded to include a rict*i=1 reprmnemian orthe cInnes and dams how she climes are modeled- wet and dry serips.numeer or climes-in a sesck.reconenended mer mput parameters. etc. Also discuss how solume, mass eres and momentum are twooerb accounced for in the niedel The escwasion should she address modellens of the Ap600 and any additional resquirvenenes on user isgiut. Refierence
- 3. -WooTHIC Code Desmposon and Vehdation." WCAP-14382. hiev 1995.
} Closed - Response prmided tw NSD-NRC-96-4696. l NRRSCSB 21. RAICI e60196 Action W Action W 2887 4sto.394 for the blind sens.two annines are prewised. One f' r othe entrihmeed parameter siendel and one for the lumped parameter noodel. Explain the (fyy- differeme between the two resatis for the ini'48 reen=re ee' rome. Whv daes the lumped parameter model perform bener then the enardened per.n=te-model during the earls part of the anshses? R1sv do hath analwes underpreact the initial pressure rise?
Refence
- 3. *WOOTHIC Code Desmpeian and Validstion." WCAP-14382. hiny 1995.
NRRSCSB 28. RAIG 069396 Action W Action W , 2888 4fl0.395 On page 9-1 of Ret 3.the text refers to Sedian 9 4. T1ns should be Section 9.6. Figure 9-1 en page 9-10 is cut off and the x-axis is missing, Q 4' Prmided the fun figure. Reference-
- 3. "WOOTHIC Code Desmision and Validstinn." WCAP-I4382. Einy 1995.
2R89 NRR SCSB 21- RAI Ol 069396 Action W Action W 480.3% Refevence 3 of Rc0 3 is the klardi 29-30.1995 ACRS meeting of the thermenmiraulic s i -- subcomnunce. To the exicie that she mformation prewneed at this meeting is being used to susqwwt the PIRT. as noted on page 1-2 of rec 3. preide e neitsen discussion and indede copics of the relevant preseression susserial. In past, in appears thee the snoterial preided to the ACRS supports the PIRT in Table 7-3 on page 7-7 of Ret 3 which differs freni Tahle 2-1 on page 2-10 of WCAP-14190. l Reference-
- 3. *WGOTHic Code Desmpeian and Validation." WCAP-14382. kley 1995.
4
" nee: 37 Total Reenrde IfM
~ _ . . . _ _ __ _ - _ _ . _ _ - . . . . _ _ . _ . - _ _.. ._ __ ._
, u.,
AP600 Open Item Tracking Systems Database: Executive Summary Deter 10/1/96
- selection: IDSER Sectwn] like '14 And [NRC BranchDie NRR/HQMB' Sorted by llem i (W) NRC han DSER Sechonf T %- Seseus Seems W No. / 1* Daar Type Sessus Deem 8 last MedDaae Na Branch Cl--
miupie 14.2.1 1 DesRG S/Im Cloond Adien F [ 1234 8 West' f sheute acuspemidy adeems die issues identdied in Q260.23, and idsmaily inmus (w mi -eim 14.2.1 erthis report)eut are met
" by the inisint tout p,., and junify dirir exclumena.
f - leser NSD-NRC-96-4800, Ameed Augsut 13,1996. l jrwa. Response , 12 via W_ 9/1W96 Clemed Aceien N { arriiaynb 34.2.2-1 D5ER.Ol 1233 in Section I4.2.2 of the SSAR, W f sliould supisce *he phrase *NRC sanff peessemel frenn die Office di , _ and Estosternent* with *NRC -
- L , . _ . ' '
l lrw.s . R-- prtmded via Westinghouse tener NSD-NRC-96-4900, deced Auguse 13,1996. _ DSER O st1W96 Closed Action $ M 1236 miupse 14.2.2-2 l lW . should add to the SSAR Wie idenedied COI. Action leeins.
. _ lener NSD-NRC-96-4800, deced August 13,1996. l l Closed - R., . c. .. 2 via W D5ER G Sfl3/96 Closed Aceien$ k 1237 miuynb 14.2.2.1 1 should include in die SSAR a desenpmen of the . ' unies and any asyneesed organnutiese er edier psemosuwt that will ananage, W- .
- m. .L or ewcuse any phase of the ITP in a inanner conomeem with the guidance in Section 14.2.2 of RG l.70.
i leserNSD-NRC-9G4900,daued August 13,1996. l l rwa . Responser.12 via W . D5ER O sflW96 Cleoed Action $ M 1138 misgie 14.2.2.2-1
-l lWestingpiouse should add COL Actionlean 14.2.2.2 1 to the SSAR.
leser NSD NRC-96-4900, deced Ampest 13,1996. l l Closed Responser.. Alvia L J t/13/96 Clemed Action @ m impub I4.2.81 DSER G 1239 Westinghouse should noodify preopers * . sal test abueract 14.2.8.l.80 im Appendix I Aefdie SSAR to include die -,,
~^, orthis testing to r .c AP600 planes, or to provide apprepname , ^'" _ fet this exception to RG l.68, Appenex A,lleens 1.at(2)(d) and 1.h.(2) leser NSD-NRC-964800, deced August 13,1996. l
] Closed. Responsec... " 2 via W_, _
14.2.8-2 DSER G t/1996 Closed Action $ k 1240 m1upab M
' , ofthis tuning to - "-
W_ j - ^ should snodify c.., .___ ." '~ test abstract 14.2.8.1.85 in Appendix 1 A ofdie SSAR to include tie _m l AP600 planes,or to , .1 approprisee, -_ for this exceptionto RG 1.79 and RG 1.68, Appendix A,Itene I A(I) lemerNSD.NRC-96-4800, dated August 13,1996. l lrhd.Responser..i" via W f DSER G t/1$96 Closed AceienW M 1241 m iupub 14.183 ^
' tsst abstract l4.2.8.1.37 in Appeedix l A efeie SSAR to include tte _,," '^, aftfis tasingto "
W J 'should mandify r . , AP600 plares, or to provide appreynner, '~ forthis encephento RG 1.139 and RO 1.68 Appsodix A,Itans 14(5),14(8)and I A l jr i.-a . Responser. .." " via Was-ge=== later NSD-NRC-964800, deced August 13,1996. _ g/1396 Closed Aceian W mingnb 14.2.8-4 DSER G 1242 '
" test abstract l4.2.3.1.94 in Appe=adru l A uftie SSARto biclude ene , " ", efthis testing te - ,
W j : should ssodify r.., AP600 plems,or tor..:" ,.c ,.,.h , '~ _ for this & to RG l.68.2, as wou as RP C.3 sad C.4. f - laser NSD-NRC 96-4900, deced August 13,1996. l lri a.Responser . . i " via W Page: 1 Total Records- 82 m___ _ _ . _ _ _ _ _ _. __ _ _ _ _ . _ . . . _ _ _ _ _ _ _ _ _ _ _ _ . _ _ _ _ _ _ _ _ _ _ _ . _ _ _ _ _ . _ _ . _ _ _ _ _ _ _ _ _ _ _ _ _ . _ _ _ _ _ . _ _ . _ . _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ . _ _ _ _ _.}}