ML20203K489

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Rev 6 to Calculation M97-0098, Boron Dilution by Hot Leg Injection
ML20203K489
Person / Time
Site: Crystal River Duke Energy icon.png
Issue date: 02/23/1998
From: Becker G, Esquillo V
FLORIDA POWER CORP.
To:
Shared Package
ML20203K477 List:
References
M97-0098, M97-0098-R06, M97-98, M97-98-R6, NUDOCS 9803050105
Download: ML20203K489 (4)


Text

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  1. m% Florida INTEROFFICE CORRESPONDENCE

& att Power A C-1L~

Q""*"'" Nuclear Engineering NTO2 240-3188 OMce MAC Telephone

SUBJECT:

Crystal River Unit 3 Quality Record Transmittal Analysis / Calculation To: Records Management - NR2A The following analysis / calculation package is submitted as the QA Record copy DoCNO (FPC DOCUMENT IDENTIFICATION NUMDER) REV SYSTEM (S) tot AL PAGES TR ANSMITTED M 97-0098 6 RCS,DH G4; TITLE Boron Dilution by Hot Leg injection KWDs DDEPmFY KEYWORDS FOR LATER RETR: EVAL) sun,p decay heat, LPI DXREF (REFERENCES OR FLES . LIST PRIMARY FLE FtRsT) 51-5000519-06 VEND (VENDCR NAMC) VENDOR DOCUMENT NUMBER (DXREF) SUPERSEDED DOCUMENTS (DXREl)

FTl 51-5000519-06 M 97 0098 Rev 4 DHP 1 A,1B l DHV 3,4,5,6 l ,

MUP-1 A,18,1 C l l DH 1 FE1, FE2 l l DH-38-FE l l COMMENTS (USAGE RESTRtCTIONS. PROPR'ETARY. ETC )

Revision 5 of the FTl document was not issued as an FPC document. Revision 6 is issued as FPC calculation M 97-0098 Revision 6, to maintain consistency with the FTl revision level NOTE:

Use Tag number onl/ for valid tag numbers (i.e , RCV-8 SWV-34, DCH-99); otherwise, use Part number field) e, CSC14599, AC1459). If more space is required, wnte"See Attachment" and list on separate sheet.

  • *FOR RECORDS MANAGEMENT USE ONLY '-

Quality Record Transmittal received and information entered irto SEEK.

Entered by: Date (Return copy of Quality Record Transmittal to NOE Support Specialist.)

DE31GN ENGINEER ##8M/ DATE VER:FICATION ENGINEER DATE SupERV!SCR, NUCLEAR ENO CATE

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y 4 4/97 M/.4 -Wm w 2-/43h?

cc: Nuclear Projats (If MAR /CGWR!PEERE Calculation Review form Part 111 actions required Oyes [No Return to service Related) O Yes E No (If Yes, send copy of the form to Nuclear Regulatory Assurance and a supervisor, Config Mgt. Info. copy of the Calculation to the Responsible Organization (s) identified in Mgr., Nucl. Operations Eng. (Original) w/ attach Part til on the Calculation Review form.)

y'g(/ [ set?!UD al. SkKM 9803050105 980227 PDR ADOCK 05000302 P PDR _ _ _ _ _ _ _ _ _ _ _ _ _

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g ANALYSIS / CALCULATION 4-C4vM rau

SUMMARY

a olSCIPUNE CONTROL No.

nocOMENT IDENTIFICATION NUMBER PEVISION LEVEL M 97-0098 6 TITLt CLAS$$iCAtl0N (CHECE ONE)

Boron Dilution by Hot Leg Injection @ safety Rested Non Safety Related M AR.SetCowR.etEnt nun'stR N/A VTNDOR DOCUMENT NUMBER 51-500019-06 APPROVAL PRINTED SIGNATURES NAME Dssign Engineer MA g My4_ V. M. Esquillo Dste of/hff Verification Engineer N/A Date Supervisor ^ R. W. Knoll Date .2/30/#

ITEMS REVISED Revision 6 takes into account higher LPl temperatures, and addresses CR-3 comments. This document replaces Revision 0 completely. All FPC comments were incorporated into the final FTl document.

PURPO51 SUMM AA Y The purposa of this calculation is to demonstrate the effectiveness of the hot leg injection (HLI) method for post LOCA boron concentration control. This method directs flow from one low pressure injection (LPI) pump backward through the other (inactive) LPI pump, and through the decay heat drop line into the hot leg.

Ultimately, a reverse flow through the core to the break is induced.

AtSutT$

SUMMARY

The analysis demonstrated that hot leg injection is an effective method for post-LOCA boron concentration control, in addition _to_this result, FTl recommended that to ensure the effectiveness of this method, the reversa flow through the decay heat drop line be maintained at 500 gpm. This minimum flow rate was found to be effective in both small break and large break LOCA scenarios.

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i Rev. 3/97 4

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CALCULATION REVIEW CALCMV FRM Page 1 of 2 CALCULATION No /RIV.

,// f/- .x)ff M4 PART l - DESIGN ASSUMPTION / INPUT REVIEW: APPLICABLE @ Yes O No The following organizations have reviewed and concur with the design assumptions and inputb identified for this calculation:

Nuclear Plant Technical Support System Engr 2!t3[78 #tutf 54"**T Nuclear Plant Operations f M e"./M"Ar/4 OTHER(S) Sqnatwo;Date y m - Ift- 0 6 cLA c/d .2hshs Signatis/Dato C6 W Mk $cdond .

7.flSf97 g,y,poggg Segnatws/Date PART ll RESULTS REVIEW: APPLICABLE @ Yes O No The following organizations have reviewed and concur with the results of this calculation and understand the actions which the organizations must take to implement the results.

Nuclear Plant Technical Support A 7 !!f P # //l85 System Engr SS"*'* '" V Nuclear Plant Operations # s @ # #fAf//-

senatwezomG Nuclear Plant Maintenance C Yes @M **"*'**'**

Nuclear Licensed Operator Training C Yes @M Manager, Site Nuclear Services O Yes @ N/A Sr. Radiation Protcction Engineer 55"*'* * **

O Yes @ N/A Nuclear Plant ECP Group ,

@ Yes D N/A 5 MN & AYMM smnewy. p m a q )gg y

$ Ift. $l$ R,<f 3heln C 83tEL ex.nu .1k.,_.... k dshs e.n. ma Rev_12,17 19 & / M i

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\* CALCULATION REVIEW Page 2 of 2 C*1CULAftoN Nolmfy.

M f7-Mf7 W A PART 111 CONFIGURATION CONTROL: ,,PPLICABLE

  • O Yes @ No The following is a list of Plant procedures /lessan plans/other documents and Nuclear Engineering calculations which require updating based on calculation results review:

Document Date Reauired Resnonsible Orcanization r

Upon completion, forward a copy to the Manager, Nuclear Regulatory Asst.rance Group for tracking of actions if tny items are identified in Part 111. If calculations are listed, a copy shall be sent to Sl'e original file and the calculation log updated to reflect this impact.

PART IV - NUCLEAR ENGINEERING DOCUMENTATION REVIEW The responsible Design Engineer must thoroughly review the below listed documents to assess if the calculation requires revision to these documentr.. If "Yes," the change authorizations must be listed below and issued concurrently with the calculation.

Fnhanced Design Basis Document O vos M No (Tcal Vendor O'.:alification PackageO ves 3 NorvoP')

FSAR O ves a No "-** Topicai Desian Basis Doc. O ves 2 NoffC8)

Improved Tech. Specific:. tion O ves E No it*"**> E/SQPM O ves E Norresi improved Tech. Spec. Bases O ves S No (L*"*8) Other Documents reviewed:

Config. Mgmt. Info. System O ves G No (ciopsi O yes O No iCn.Gs Dec asFEnENCu Analysis Dasis Document O ves E No (TC81 O ves O No ICHAhGC 00C. RtFERENC31 Desi0n Basis Document O ves @ No C*) O ves O No _

(CMANGE DOC. PEFEPEMCEI Appendix R Fire Study O ves 2 No (Tc8) O ves C No tCHANGt WOC. REFEPENCEI Fire Hazardous Analysis O vas G No ffC81 __

O ves O No ICMANGE DOC. REFte ~7sil NFPA Code Conformance Document O ves 3 No (Tcal C ves O No tCHANGE DOC. FEFERENCII PART V PLANT REVIEWS / APPROVALS FOR INSTRUMENT SETPOINT CHANGE PRC/DNPO approvalis required if a setpoint is to be physically changed in the plant throt'gh the NEP 2'3 process.

PRC Review Required Yes No PRC Chairman /Date DNPO Review Required Yes @ No DNPO lDate oESIGN ENGINEEADATE oEStGN ENGINEER . PRINTEO NAME I Y '

u F.ew.12/97

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