View source for LR-N05-0424, Attachment 1, Calculation S-1-SJ-MDC-1539, Revision 2, Accumulator Pressure Decay Time During Discharge Test.

{{Adams
| number = ML052420526
| issue date = 08/12/2005
| title = Attachment 1, Calculation S-1-SJ-MDC-1539, Revision 2, Accumulator Pressure Decay Time During Discharge Test.
| author name = Chandra V, Duffy J, Murphy J
| author affiliation = PSEG Nuclear, LLC
| addressee name = 
| addressee affiliation = NRC/Document Control Desk, NRC/NRR
| docket = 05000272
| license number = DPR-070
| contact person = 
| case reference number = LR-N05-0424
| document report number = S-1-SJ-MDC-1539, Rev 2
| document type = Calculation
| page count = 49
}}

=Text=
{{#Wiki_filter:Document Control Desk                                      Attachment 1 LR-N05-0424 Calculation S-1-SJ-MDC-1539, Revision 2 Accumulator Pressure Decay Time During Discharge Test

(NC.DE-AP.Z-0002(Q), Rev. 12. Form 1)        CALCULATION COVER SHEET                                  Page 1of         40 CALCULATION NUMBER:                   S-1-SJ-MDC-1539                                                REVISION:          2 TITLE:      Accumulator Pressure Decay Time During Dischanrge Test
   #SHTS (CALC):             40      #ATTI#SHTS:    2c        #IDVl50.59172.48 SHTS:    2-/     #TOTAL SHTS:             ;5 3 CHECK ONE:
[0 FINAL         [1 INTERIM (Proposed Plant Change)             El VOID El  FINAL (Future Confirmation Req'd, enter tracking Notification number:)
SALEM OR HOPE CREEK:                 0 Q-LIST        [EIMPORTANT TO SAFETY                  E NON-SAFETY RELATED HOPE CREEK ONLY:                     OQ              EOQs            ElQsh                ElF            OR ISFSI:                               E IMPORTANT TO SAFETY             El NOT IMPORTANT TO SAFETY 0     ARE STATION PROCEDURES IMPACTED? YES 13                           NO El If'yes', interface with the system engineer & procedure sponsor. All impacted procedures should be identified in a section in the calculation body [crca 70038194'0280]. Include an sap operation for update and list the sap orders here and within the body of this calculation.
SI.OP-ST.SJ-0006                   SAP order 80017350, op. 0690 El  CP and ADs INCORPORATED (IF ANY):                                                                                              l DESCRIPTION OF CALCULATION REVISION (If applicable.):
: 1. Incorporated the effect of increased stroke times of 13SJ54 and 14SJ54 valves
: 2. Developed acceptance criterion for each loop separately.
: 3. Incorporated the effect of dead period in the beginning of SJ54 stroke.
PURPOSE:
Determine the acceptane criteria for the pressure decay in the accumulator during the discharge test done in support of testing of SJ55 and SJ56 check valves.
CONCLUSIONS:
Acceptance criterion for pressure decay time for 11 loop check valves is less than or equal to 25.26 seconds.
Acceptance criterion for pressure decay time for 12 loop check valves is less than or equal to 25.62 seconds.
Acceptance criterion for pressure decay time for 13 loop check valves is less than or equal to 27.13 seconds.
Acceptance criterion for pressure decay time for 14 loop check valves is less than or equal to 27.13 seconds.
The time is measured from the instant when SJ54 valve disc begins to move.
This calculation needs NRC approval before implementation.
Printed Name I Signature                      Date ORIGINATOR/COMPANY NAME:                                     Vijay Chandra/PSEG    1/               ,       Aug 8, 2005 REVIEWER/COMPANY NAME:                                       James Murphy/PSEG                            l Aug 11, 2005 VERIFIER/COMPANY NAME:                                       James Mur        PS                            Aug 11, 2005 CONTRACTOR SUPERVISOR (Ifapplicable)                                                                U PSEG SUPERVISOR APPROVAL: (Always required)                  John Duffy      4          -       I s                  4 V

(NC.DE-AP.ZZ-0002(O), Rev. 12, Form 2)   CALCULATION CONTINUATION SHEET                                             SHEET:         2 CALC NO.:   S-1-SJ-MDC-1539              REV:       2      REF:                                           CONTD ON SHEET:
ORIGINATOR:               DATE:                REVIEWER:              DATE:                   I VERIFIER:             DATE:
Vijay Chandra               Aug 08, 2005 l James Murphy              Aug 11, 2005                James Murphy         Aug. 11,2005 Revision History Revision          Date                                                      Description No. I 0         Feb 5, 1996        Original issue I        Feb. 25, 2005       Added analysis for increased stroke times of 13SJ54 and 14SJ54 valves as a result of DCP's 80017350 and 80037351 2         Aug 08, 2005       Included the effect of dead period during the beginning of the stroke.
Developed the acceptance criterion for each loop.
Page Revision     Index Page         Revision          Page         Revision           Page               Revision             Page         Revision 1             2                19             2                  37                   2           _
2             2               20              2                  38                   2 3             2               21              2                  39                   2 4             2               22              2                  40                   2 5             2               23              2              Att. 1                   2 6             0               24              2              Att. 2                   2 7             0               25              2           _    _   _   _   _  _   _   _    _   __                  _    _   _   _
8             0               26              2 9              2              27              2           _    _   _   _   __                        _ _  _ _   _  _    _   _   _
10              0              28              2 11             2               29              2 12             2               30              2 13             2               31              2           _     _    _   _      _   _    _   _       _ _  _ _
14             2                32              2 15             2               33              2 16             2                34             2         _    _    _    _   __                        _ _  _ _   _  _  _   _   _
17             2                35             2 18             2                36             2                                                                       _

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(NC.DE-AP.ZZ-0002(0), Rev. 12, Form 2) CALCULATION CONTINUATION SHEET                              SHEET:
CALC NO.:   S-1-SJ-MDC-1539            REV:      2     REF:                               CONTD ON SHEET:
ORIGINATOR:        l      DATE:             REVIEWER:        DATE:              VERIFIER:            DATE:
Vijay Chandra               Aug 08, 2005    James Murphy     Aug 11, 2005       James Murphy         Aug. 11,2005 Reason for Calculation Revision The method of testing SJ55 and SJ56 check valves by passing accumulator water to the reactor cavity by opening the SJ54 valve was approved by NRC via relief requests V-24 and V-25 (TAC No. M98259 and M98260). The acceptance criterion specified in these relief requests was applicable for the SJ54 gate valve stroke time of 12.5 seconds. Since then, the stroke times of 13SJ54 and 14SJ54 valves have been increased via DCP's 80017350 and 80037351. Since, the stroke time of SJ54 valve directly influences the accumulator pressure decay time, a revised acceptance criteria are needed for the 13 and 14 loop valves.
Also, it has been discovered that there is a delay time between the. instant the SJ54 valve push button is pressed and the valve disc begins to move. Therefore, the actual stroke time of the SJ54 valves is lower than the value used. The effect of this dead time has been incorporated in this calculation.
To keep the analysis as realistic as possible, the pressure decay time acceptance criterion has been developed for each loop.

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                                                                                     /47      qC COMPONENT                                           'ELEVATION STEAM GENERATORS                        FEET        INCHES NARROW RANGE LEVEL TAP (UPPER)                            154     7 HI-HI TRIP (67%)                                          150 2 FULL LOAD (44%)                                           147      10 NO LOAD (33%)                                             146      6 FEEDWATER NOZZLE & SPARGER (786% WIDE RANGE)                                 144 6 LOW LEVEL TRIP (8.5%                            -         143     7 I                                  NARROW RANGE LEVEL TAP (LOWER)                            142 7 TOP OF TUGE BUNDLE (707' UIDE RANGE)                                   140      3 PRIMARY SIDE INLET & OUTLET NOZZLES CENTERLINE                                  98     7.25 PRIMARY SIDE MANWAY (BOTTOM)                                 98 7 REACTOR COOLANT PUMPS RCP CONNECTIONS (SEAL INJECTION, SEAL RETURN, PRESSURE TAPS)                            99     11 PUMP DISCHARGE CENTERLINE                                   97    0 PUMP INLET NOZZLE                                            91     2.25 PUMP SUClION CENTERLINE                                      86     8.25 RELIEF VALVE DISCHARGE
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(NC.DE-AP.ZZ-0002(Q),Rev. 12,Form2)   CALCULATION CONTINUATION SHEET                                    SHEET:    jI CALCNO.:    S-1-SJ-MDC1539             REV:       2       REF:                                CONTODON   SHEET:
ORIGINATOR:                DATE:             REVIEWER:            DATE:             VERIFIER:               DATE:
Vijay Chandra               Aug 08, 2005 l James Murphy           Aug 11, 2005      James Murphy          I Aug. 11, 2005 3.3 .Check Valves SJ55 and SJ56 The flow rate versus pressure drop relationship for these check valves was developed in Ref. [1] and will not be repeated here.
3.4 Gate Valve SJ54 The valve flow loss factor vs. stroke position was developed in Ref. [1] and will not be repeated here. Table 3.1 shows the stroke times and the delay times of each of the SJ54 valves. The gross stroke time is the duration between the instants the push button is pressed and the disc stops moving. The delay time is the period when the motor is spinning and the disc is not moving. The net disc stroke time was calculated by subtracting the delay time from the gross stroke time.
Table 3.4.1 SJ54 Valve Stroke and Delay times Valve ID        Gross Opening         Reference       Delay Time     Reference      Net Disc Movement No.         Stroke Time (sec.)                        (sec.)                           Time (sec) 11 SJ54                 9.6             Att. 2            0.83         Aft. 2                  8.77 12SJ54                 10.5             Aft. 2            0.69         Att. 2                  9.81 13SJ54                 20.5          Notification         1.38         Aft. 1                19.12 20188810 14SJ54                 21.3           Notification        1.36         AIt. 1                 19.94 20188884 1                                                             1 3.5 Friction Loss Factors and Inertial Lengths of Accumulator Discharge Piping Tables 3.5.1, 3.5.2, 3.5.3, and 3.5.4 show the friction loss factors of the discharge piping. The effective A is shown underneath each table.
Effective A        Li where, Li = Length of Ith pipe segment Ai = Flow area of i' pipe segment (See Ref. I page 24 for its use)

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DE-AP.ZZ-0002    (0)                                                                                                       ATTACHMENT ATTACHMENT 22

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DE-AP.ZZ-0002(Q)                                                                                                      ATTACHMENT 2 l

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DE-AP.ZZ-0002(Q)
DE-AP.ZZ-0002(Q)                                                                                                                           ATTACHMENT ATTACHMENT 22

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(NC.DE-AP.ZZ-0002(C), Rev. 12, Form 2) CALCULATION CONTINUATION SHEET                         SHEET: l B CALC NO.:    S-1-SJ-MDC-1539            REV:      2      REF:                         CONTD ON SHEET:
ORIGINATOR:                DATE:             REVIEWER:          DATE:       VERIFIER:            D Vijay Chandra                Aug 08, 2005 l James MurphY Aug 11, 2005 l James Murphy l Aug. 11,2005 Table 3.6.1 Computer Program Listing: Analysis of 11 Loop, Check Valve Maximum Lift = 60 Deg.
OPEN(I,FILE='Acc 11-hoff-60deg.out', STATUS='old')
DATA WOF/0.,.05,.1,.2,.3,.4,.5,.6,.7,.8,.9,1./
DATA CVCV/0., 0.01 94, 0.055, 0.1, 0.146, 0.204,
       #      0.277,0.3536,0.4613,0.6086,0.767,1./
C PARAMETERS C SINPHM =SINE OF MAXIMUM ANGLE OF CHECK VALVE TRAVEL (NONDIMENSIONAL)
SINPHM=0.866 C AKASQ = SUMMATION KIA**2 [FT**(-4)]
SKASQ=37.12 C SLOA = SUMMATION L/A [FT**(-1)]
SLOA=261.3 C VOTI = DISK MOVEMENT TIME OF SJ54 GATE VALVE (SEC)
VOT1 =8.77 C CONSTANTS GAM=1.3 G=32.174 RHO=1.94 AREA=0.394 DT=O.01 PCAV=14.7*144.
C INITIAL CONDITIONS TIME=0.1 NSTEP=-1 VNAZ=408.3 VNA=VNAZ PAZ=84.7*144.
PA=PAZ Q=.001 ZCAV=127.
WRITE(1,101) 101 FORMAT(T19'TIME', T28'ACCUMULATOR PRESSURE FLOW RATE')
103 FORMAT(T19'(SEC.)',T28'           (PSIG)        (GPM) ',II)
WRITE(1,103) 31 NSTEP=NSTEP+1 TIME=TIME+DT C CALCULATE ACCUMULATOR LEVEL ELEVATION VWA=1350.-VNA ZA=(VWA+7801.2)/95.76 C CALCULATE ACCUMULATOR GAS PRESSURE PA=PAZ*(VNAZ/VNA)**GAM C CALCULATE SJ54 LOSS FACTOR GVKZ=.15 IF(TIME .LT. VOTI) THEN VOF=TIMENOT1 CALL INTER(VOF,CVND,12,WOF,CVCV)
GVK=GVKZ/(CVND*CVND)
ELSE GVK=GVKZ ENDIF C CALCULATE CHECK VALVE DP VEL=Q/AREA AV2=38.31(VEL*VEL)
(contd.)

(NC.DE-AP.ZZ-0002(Q), Rev. 12, Form 2) CALCULATION CONTINUATION SHEET                       SHEET:
CALC NO.:   S-1-SJ-MDCG1539            REV:      2     REF:                       CONT'D ON SHEET:
ORIGINATOR:               DATE:             REVIEWER:         DATE:     VERIFIER:             DATE:
Vijay Chandra           l Aug 08, 2005      James Murphy Aug 11, 2005 l James Murphy          Aug.11, 2005 Table 3.6.1 (contd.)
SINPHI=0.5*(SQRT(AV2**2+4.}AV2)
IF (SINPHI .GE. SINPHM) SINPHI=SINPHM DPCHK=2.*8.98*RHO*VEL*VEL*(1.-SINPHI)
C CALCULATE DERIVATIVES DQDT=(PA+RHO*G*ZA-PCAV-RHO*G*ZCAV-0.5*RHO*SKASQ*Q*ABS(Q)
    #      -0.5*GVK*RHO*Q*ABS(Q)/AREA**2 - DPCHK)/(RHO*SLOA)
DVNADT=Q C CALCULATE VALUES AT NEW TIME STEP QQ=Q+DQDT*DT WNA=VNA+DVNADT*DT IF (TIME .LE. 2.) THEN IF(MOD(NSTEP,10) .EQ. 0)WRITE(1,102) TIME,+(PA/144.-14.7),
    # Q*7.48*60.
ELSE IF(MOD((NSTEP+10),100) .EQ. 0)WRITE(1,102) TIME,+(PA/144.-14.7),
    # Q*7.48*60.
ENDIF 102 FORMAT(F23.3,8F17.2)
C UPDATE THE OLD VARIABLES Q=QQ VNA=VVNA IF(TIME .GT. 41.) STOP GO TO 31 END SUBROUTINE INTER(X,Y,N,XX,YY)
DIMENSION XX(N),YY(N)
IF(X .LT. XX(1) .OR. X .GT. XX(N)) GO TO 3 DO 2 J=2,N IF(X .GE. XX(J-1) .AND. X .LE. XX(J)) GO TO 101 GOTO2 101 Y=YY(J-1 )+(YY(J)-YY(J- I))*(X-XX(J- I))/
1 (XX(J)-XX(J-1))
RETURN 2 CONTINUE 3 WRITE(6,1) X,(XX(I),I=1,N) 1 FORMAT(' BEYOND RANGE',G10.4,5X,20G10.4)
RETURN END

(NC.DE-AP.ZZ-0002(0), Rev. 12, Form 2) CALCULATION CONTINUATION SHEET                             SHEET:  2o CALC NO.:   S-1-SJ-MDC-1539            REV:      2      REF:                             CONTD ON SHEET:
ORIGINATOR:               DATE:             REVIEWER:         DATE:            VERIFIER:            DATE:
Vijay Chandra               Aug 08, 2005    James Murphy      Aug 11, 2005 l James Murphy           Aug. 11, 2005 Table 3.6.2 Computer Program Listing: Analysis of 12 Loop, Check Valve Maximum Lift = 60 Deg.
OPEN(1,FILE='Accl2-hoff-60deg.out', STATUS='old')
DATA WOF/0.,.05,.1,.2,.3,.4,.5,.6,.7,.8,.9,1./
DATA CVCV/0., 0.01 94, 0.055, 0.1, 0.146, 0.204,
    #     0.277,0.3536,0.4613,0.6086,0.767,1./
C PARAMETERS C SINPHM =SINE OF MAXIMUM ANGLE OF CHECK VALVE TRAVEL (NONDIMENSIONAL)
SINPHM=0.866 C AKASQ = SUMMATION K/A**2 [FT**(-4)]
SKASQ=37.69 C SLOA = SUMMATION L/A [FT**(-1)]
SLOA=256.8 C VOTI = DISK MOVEMENT TIME OF SJ54 GATE VALVE (SEC)
VOT1=9.81 C CONSTANTS GAM=1.3 G=32.174 RHO=1.94 AREA=0.394 DT=0.01 PCAV=14.7*144.
C INITIAL CONDITIONS TIME=0.1 NSTEP=-1 VNAZ=408.3 VNA=VNAZ PAZ=84.7*144.
PA=PAZ Q=.001 ZCAV=127.
WRITE(1,101) 101 FORMAT(T1I9TIME', T28'ACCUMULATOR PRESSURE FLOW RATE')
103 FORMAT(T19'(SEC.)',T28'           (PSIG)        (GPM) ',II)
WRITE(1,103) 31 NSTEP=NSTEP+1 TIME=TIME+DT C CALCULATE ACCUMULATOR LEVEL ELEVATION VWA=1350.-VNA ZA= (VWA+7801.2)195.76 C CALCULATE ACCUMULATOR GAS PRESSURE PA=PAZ*(VNAZIVNA)**GAM C CALCULATE SJ54 LOSS FACTOR GVKZ=.15 IF(TIME .LT. VOT1) THEN VOF=TIMENOTI CALL INTER(VOF,CVND,12,VVOF,CVCV)
GVK=GVKZI(CVND*CVND)
ELSE GVK=GVKZ ENDIF C CALCULATE CHECK VALVE DP VEL=Q/AREA AV2=38.3/(VEL*VEL)
(contd.)

(NC.DE-AP.ZZ.0002(Q), Rev. 12, Form 2) CALCULATION CONTINUATION SHEET                           SHEET:   2 CALC NO.:   S-1-SJ-MDC-1539             REV:      2    REF:                            CONT'D ON SHEET:
ORIGINATOR:                DATE:             REVIEWER:         DATE:          VERIFER:             DATE:
Vijay Chandra                Aug 08, 2005    James Murphy      Aug 11, 2005 l James Murphy         Aug. 11, 2005 Table 3.6.2 (contd.)
SINPHI=0.5*(SQRT(AV2**2+4.}AV2)
IF (SINPHI .GE. SINPHM) SINPHI=SINPHM DPCHK=2.*8.98*RHO*VEL*VEL*(1.-SINPHI)
C CALCULATE DERIVATIVES DQDT=(PA+RHO*G*ZA-PCAV-RHO*G*ZCAV-0.5*RHO*SKASQ*Q*ABS(Q)
     #     -0.5*GVK*RHO*Q*ABS(Q)/AREA**2 - DPCHK)/(RHO*SLOA)
DVNADT=Q C CALCULATE VALUES AT NEW TIME STEP QQ=Q+DQDT*DT WNA=VNA+DVNADTDT IF (TIME .LE. 2.) THEN IF(MOD(NSTEP,10) .EQ. 0)WRITE(1,102) TIME,+(PA/144.-14.7),
     # Q*7.48*60.
ELSE IF(MOD((NSTEP+ 10),100) .EQ. 0)WRITE(1,102) TIME,+(PA/144.-14.7),
     # Q*7.48*60.
ENDIF 102 FORMAT(F23.3,8F17.2)
C UPDATE THE OLD VARIABLES Q=QQ VNA=WNA IF(TIME .GT. 41.) STOP GO TO 31 END SUBROUTINE INTER(X,Y,N,XX,YY)
DIMENSION XX(N),YY(N)
IF(X .LT. XX(1) .OR. X .GT. XX(N)) GO TO 3 DO 2 J=2,N IF(X .GE. XX(J-1) .AND. X .LE. XX(J)) GO TO 101 GO TO 2 101 Y=YY(J-1)+(YY(J)-YY(J-1))*(X-XX(J-1))/
I (XX(J)-XX(J-1))
RETURN 2 CONTINUE 3 WRITE(6,1) X,(XX(I),I=1,N) 1 FORMAT(' BEYOND RANGE',G10.4,5X,20G10.4)
RETURN END

(NC.DE-AP.ZZ-0002(Q), Rev. 12, Form 2) CALCULATION CONTINUATION SHEET                         SHEET:   2.
CALC NO.:   S-1-SJ-MDC-1539            REV:       2      REF:                        CONTD ON SHEET:
ORIGINATOR:               DATE:              REVIEWER:         DATE:        VERIFER:            DATE:
Vijay Chandra               Aug 08, 2005 l James Murphy Aug 11,2005         James Murphy        Aug. 11, 2005 Table 3.6.3 Computer Program Listing: Analysis of 13 Loop, Check Valve Maximum Lift = 60 Deg.
DIMENSION WOF(12),CVCV(12)
OPEN(1,FILE='Accl3-hoff-60deg.out', STATUS='old')
DATA WOF/0.,.05,.1,.2,.3,.4,.5,.6,.7,.8,.9,1 J DATA CVCV/0., 0.0194, 0.055, 0.1, 0.146, 0.204, 0.277,0.3536,0.4613,0.6086,0.767,1./
C PARAMETERS C SINPHM =SINE OF MAXIMUM ANGLE OF CHECK VALVE TRAVEL (NONDIMENSIONAL)
SINPHM=0.866 C SKASQ = SUMMATION K/A**2 [FT**(-4)]
SKASQ=35.83 C SLOA = SUMMATION UA [FT**(-1)]
SLOA=235.6 C VOT1 = DISK MOVEMENT TIME OF SJ54 GATE VALVE (SEC)
VOT1 =19.12 C CONSTANTS GAM=1.3 G=32.174 RHO=1.94 AREA=0.394 DT=0.01 PCAV=14.7*144.
C INITIAL CONDITIONS TIME=0.1 NSTEP=-1 VNAZ=408.3 VNA-VNAZ PAZ=84.7*144.
PA=PAZ Q=.001 ZCAV=127.
WRITE(1,101) 101 FORMAT(T19'TIME', T28'ACCUMULATOR PRESSURE FLOW RATE')
103 FORMAT(T19'(SEC.)',T28'           (PSIG)         (GPM) ',1I)
WRITE(1,103) 31 NSTEP=NSTEP+1 TIME=TIME+DT C CALCULATE ACCUMULATOR LEVEL ELEVATION VWA=1350.-VNA ZA=(VWA+7801.2)195.76 C CALCULATE ACCUMULATOR GAS PRESSURE PA=PAZ*(VNAZNNA)**GAM C CALCULATE SJ54 LOSS FACTOR GVKZ-.15 IF(TIME .LT. VOT1) THEN VOF=TIMENOTI CALL INTER(VOF,CVND,12,VVOF,CVCV)
GVK=GVKZ/(CVND*CVND)
ELSE GVK=GVKZ ENDIF C CALCULATE CHECK VALVE DP VEL=QIAREA (contd.)

(NC.DE-AP.ZZ-0002(Q), Rev. 12, Form 2) CALCULATION CONTINUATION SHEET                      SHEET:   23 CALC NO.:   S-1-SJ-MDC-1539            REV:      2    REF:                       CONT'D ON SHEET:
ORIGINATOR:               DATE:             REVIEWER:         DATE:    VERIFIER:             DATE:
Vijay Chandra               Aug 08, 2005    James Murhy Aug 11, 2005   James Murphy          Aug. 11, 2005 Table 3.6.3 (contd.)
AV2=38.3/(VEL*VEL)
SINPHI=0.5*(SQRT(AV2**2+4.)-AV2)
IF (SINPHI .GE. SINPHM) SINPHI=SINPHM DPCHK=2.*8.98*RHO*VEL*VEL*(1.-SINPHI)
C CALCULATE DERIVATIVES DQDT=(PA+RHO*G*ZA-PCAV-RHO*G*ZCAV-0.5*RHO*SKASQ*Q*ABS(Q)
    #      -0.5*GVK*RHO*Q*ABS(Q)/AREA**2 - DPCHK)I(RHO*SLOA)
DVNADT=Q C CALCULATE VALUES AT NEW TIME STEP QQ=Q+DQDTDT WVNA--VNA+DVNADTDT IF (TIME .LE. 2.) THEN IF(MOD(NSTEP,10) .EQ. 0)WRITE(1,102) TIME,+(PA/144.-14.7),
    # Q*7.48*60.
ELSE IF(MOD((NSTEP+10),100) .EQ. 0)WRITE(1,102) TIME,+(PA1144.-14.7),
    # Q*7.48*60.
ENDIF 102 FORMAT(F23.3,8F17.2)
C UPDATE THE OLD VARIABLES Q=QQ VNA=WNA IF(TIME .GT. 41.) STOP GO TO 31 END SUBROUTINE INTER(X,Y,N,XX,YY)
DIMENSION XX(N),YY(N)
IF(X .LT. XX(1) .OR. X .GT. XX(N)) GO TO 3 DO 2 J=2,N IF(X .GE. XX(J-1) .AND. X .LE. XX(J)) GO TO 101 GOTO2 101 Y=YY(J-1)+(YY(J}-YY(J-1))*(X-XX(J-I))f I (XX(J)-XX(J-1))
RETURN 2 CONTINUE 3 WRITE(6,1) X,(XX(I),I=1,N) 1 FORMAT(' BEYOND RANGE',G10.4,5X,20G10.4)
RETURN END

(NC.DE-AP.ZZ-0002(0), Rev. 12,Form2) CALCULATION CONTINUATION SHEET                           SHEET:   24 CALCNO.:    S-1-SJ-MDC-1539          REV:        2     REF:                          CONTD ON SHEET:
ORIGINATOR:               DATE:            REVIEWER:          DATE:        VERIFIER:            DATE:
Vijay Chandra           l Aug 08, 2005     James Murphy l Aug 11, 2005 I James Murphy           Aug. 11, 2005 Table 3.6.4 Computer Program Listing: Analysis of 14 Loop, Check Valve Maximum Lift = 60 Deg.
DIMENSION VVOF(12),CVCV(12)
OPEN(1,FILE='Accl4-hoff-60deg.out', STATUS='old')
DATA VVOF/0.,.05,.1,.2,.3,.4,.5,.6,.7,.8,.9,1.1 DATA CVCV/0., 0.01 94, 0.055, 0.1, 0.146, 0.204,
    #      0.277,0.3536,0.4613,0.6086,0.767,1./
C PARAMETERS C SINPHM =SINE OF MAXIMUM ANGLE OF CHECK VALVE TRAVEL (NONDIMENSIONAL)
SINPHM=0.866 C SKASQ = SUMMATION K/A**2 [FT**(-4)]
SKASQ=34.76 C SLOA = SUMMATION UA [FT**(-1)]
SLOA=222.5 C VOT1 = DISK MOVEMENT TIME OF SJ54 GATE VALVE (SEC)
VOTI =19.94 C CONSTANTS GAM=1.3 G=32.174 RHO=1.94 AREA=0.394 DT=0.01 PCAV=14.7*144.
C INITIAL CONDITIONS TIME=0.1 NSTEP=-1 VNAZ=408.3 VNA=VNAZ PAZ=84.7*144.
PA=PAZ Q=.001 ZCAV=127.
WRITE(1,101) 101 FORMAT(TI9TIME', T28'ACCUMULATOR PRESSURE FLOW RATE')
103 FORMAT(T19'(SEC.)',T28'         (PSIG)        (GPM) ',II)
WRITE(1,103) 31 NSTEP=NSTEP+1 TIME=TIME+DT C CALCULATE ACCUMULATOR LEVEL ELEVATION VWA=1350.-VNA ZA=(VWA+7801.2)/95.76 C CALCULATE ACCUMULATOR GAS PRESSURE PA= PAZ*(VNAZIVNA)**GAM C CALCULATE SJ54 LOSS FACTOR GVKZ=.15 IF(TIME .LT. VOT1) THEN VOF=TIMENOTI CALL INTER(VOF,CVND,12,WOF,CVCV)
GVK=GVKZ/(CVND*CVND)
ELSE GVK=GVKZ ENDIF C CALCULATE CHECK VALVE DP VEL=QIAREA (contd.)

(NC.DE-AP.ZZ-0002(Q). Rev. 12, Form 2) CALCULATION CONTINUATION SHEET                    SHEET:   25 CALC NO.:   S-1-SJ-MDC-1539             REV:      2    REF:                      CONTD ON SHEET:
ORIGINATOR:                DATE:             REVIEWER:         DATE:   VERIFIER:            DATE:
Vijay Chandra                Aug 08, 2005 l James Murphy Aug 11, 2005  James Murphy         Aug. 11, 2005 Table 3.6.4 (contd.)
AV2=38.3/(VEL*VEL)
SINPHI=0.5*(SQRT(AV2**2+4.}AV2)
IF (SINPHI .GE. SINPHM) SINPHI=SINPHM DPCHK=2.*8.98*RHO*VEL*VEL*(l.-SINPHI)
C CALCULATE DERIVATIVES DQDT=(PA+RHO*G*ZA-PCAV-RHO*G*ZCAV-0.5*RHO*SKASQ*Q*ABS(Q)
     #     -0.5*GVK*RHO*Q*ABS(Q)/AREA**2 - DPCHK)/(RHO*SLOA)
DVNADT=Q C CALCULATE VALUES AT NEW TIME STEP QQ=Q+DQDT*DT WVNA=VNA+DVNADT*DT IF (TIME .LE. 2.) THEN IF(MOD(NSTEP,10) .EQ. 0)WRITE(1,102) TIME,+(PA/144.-14.7),
     # Q*7.48*60.
ELSE IF(MOD((NSTEP+10),100) .EQ. 0)WRITE(1,102) TIME,+(PA1144.-14.7),
    # Q*7.48*60.
ENDIF 102 FORMAT(F23.3,8F17.2)
C UPDATE THE OLD VARIABLES Q=QQ VNA=WNA IF(TIME .GT. 41.) STOP GO TO 31 END SUBROUTINE INTER(X,Y,N,XX,YY)
DIMENSION XX(N),YY(N)
IF(X .LT. XX(1) .OR. X .GT. XX(N)) GO TO 3 DO2J=2,N IF(X .GE. XX(J-1) .AND. X .LE. XX(J)) GO TO 101 GOTO2 101 Y=YY(J-1)+(YY(J)-YY(J-1))*(X-XX(J-1))f I (XX(J)-XX(J-I))
RETURN 2 CONTINUE 3 WRITE(6,1) X,(XX(I),I=1,N)
I FORMAT(' BEYOND RANGE',G10.4,5X,20G10.4)
RETURN END

(NC.DE-AP.ZZ-0002(Q), Rev. 12, Form 2)  CALCULATION CONTINUATION SHEET                                SHEET:    A2- co CALC NO.:   S-1-SJ-MDC-1539             REV:      2      REF: _______                  _     CONTO ON SHEET:
ORIGINATOR:                 DATE:            REVIEWER:           DATE:            l VERFIER:            DATE:
Vijay Chandra                Aug 08, 2005    James Murphy I Aug 11, 2005            James Murphy        Aug.11,2005
: 4. Results All four loops were analyzed inidividually with their own specific data and geometrical input. For 11 loop, two analyses were run for pressure decay time calculation (one for the check valve free case and other with check valve having maximum lift 60 degrees). Table 4.1 shows the time history of pressure decay and the discharge flow rate of 11-accumulator for the 60 degree check valve lift. Table 4.2 shows the pressure decay time history and the discharge flow rate of 21 -accumulator for the free check valve case.
For 12, 13, and 14 loops, the pressure decay analyses were done for the case where the maximum lift for the check valves is 60 degrees. Table 4.3 shows the time history of pressure decay and the discharge flow rate of 12-accumulator for the 60 degree check valve lift. Table 4.4 shows the time history of pressure decay and the discharge flow rate of 13-accumulator for the 60 degree check valve lift. Table 4.5 shows the time history of pressure decay and the discharge flow rate of 14-accumulator forthe 60 degree check valve lift.
For all cases analyzed, the flow rate exceeded 3537 gpm (corresponding to 20 ft/s velocity in 0.394 ft2 aea pipe), the minimum flow rate required for full disk lift.
Figure 4.1 shows the plots of pressure decay time history of 11 accumulator and Figure 4.2 shows the discharge flow rate time histories of 11 accumulators for the two cases analyzed (check valves are free and the check valves maximum lift is 60 degrees).
From the tabular data, the following results are obtained for 60 degree maximum lift cases.
For 11-accumulator,     the pressure decay time from  70 psig to 35 psig is 26.76 seconds.
For 12-accumulator,     the pressure decay time from  70 psig to 35 psig is 27.12 seconds.
For 13-accumulator,     the pressure decay time from  70 psig to 35 psig is 28.63 seconds.
For 14-accumulator,     the pressure decay time from  70 psig to 35 psig is 28.63 seconds.
As per the recommendation of the saferty evaluation report docket No. 50-311 dated January 2, 2004 (Relief Request RR S2-RR-03-VO1 and RR S2-RR-03-V02) and docket Nos. 50-271 and 50-311 dated March 12, 1999, the acceptance criterion for the pressure decay time is 1.5 second less than the calculated pressure decay time for the 60 degree check valve lift case.
Therefore, the valve passing acceptance criteria for the check valves are as follows:
Acceptance    criterion for pressure decay time for 11 loop check valves is less than or equal to 25.26    -
seconds.
Acceptance    criterion for pressure decay time for 12 loop check valves is less than or equal to 25.62 seconds.
Acceptance    criterion for pressure decay time for 13 loop check valves is less than or equal to 27.13 -
seconds.
Acceptance    criterion for pressure decay time for 14 loop check valves is less than or equal to 27.13 seconds.

(NC.DE-AP.ZZ-0002(Q), Rev. 12, Form 2)    CALCULATION CONTINUATION SHEET                      SHEET:    27 CALCNO.:    S-1-SJ-MDC-1539               REV:      2    REF:                        CONT'DON SHEET:
ORIGINATOR:               DATE:                REVIEWER:        DATE:        VERIFIER:          DATE:
Vijay Chandra              Aug 08, 2005 James Murphy I Aug 11, 2005          James Murphy       Aug. 11, 2005 Table 4.1 11 Accumulator Pressure and Discharge Flow Rate Time History (Check Valve Maximum Lift =60 deg)
TIME      ACCUMULATOR FLOW RATE PRESSURE (SEC.)      (PSIG)           (GPM) 0.110         70.00            0.45 0.210         69.99          331.13 0.310         69.96          486.85 0.410         69.93          638.29 0.510         69.89          814.87 0.610         69.83         1040.08 0.710         69.76         1271.14 0.810         69.68         1500.05 0.910         69.59         1722.89 1.010        69.48         1917.43 1.110        69.36         2088.16 1.210        69.23         2239.23 1.310        69.10         2375.40 1.410        68.95         2500.59 1.510        68.80         2616.95 1.610        68.65         2725.73 1.710        68.49         2827.71 1.810        68.32         2923.51 1.910        68.15         3013.92 2.010         67.97         3099.09 3.010         66.04         3717.72 4.010         63.93         4063.75 5.010         61.79         4211.16 6.010        59.72         4246.59 7.010         57.74         4230.09 8.010        55.87         4176.19 9.010        54.11         4105.84 10.010          52.45         4018.54 11.010          50.90         3930.78 12.010          49.44         3846.08 13.010          48.07         3764.53 14.010          46.78         3685.92 15.010          45.56         3610.05 16.010          44.40         3536.72 17.010          43.31         3465.76 18.010          42.27         3397.02 19.010          41.28         3330.35 20.010          40.34         3265.63 21.010          39.45         3202.74 22.010          38.60         3141.56 23.010          37.78         3082.00 24.010          37.01         3023.96 25.010          36.27         2967.37                                                   26 7 26.010          35.56         2912.14       W       ppE'SufftETlt-                       EL 7       C 27.011          34.87         2858.20/
28.011          34.22         2805.48 29.011          33.60         2753.93 30.011          33.00         2703.47 31.011          32.42         2654.07 32.011          31.87         2605.66                (contd.)

(NC.DE-AP.ZZ-0002(Q), Rev. 12, Form2)  CALCULATION CONTINUATION SHEET                            SHEET:  2-CALC NO.:   S-1-SJ-MDC-1539            REV:        2     REF:                          CONT'D ON SHEET:
ORIGINATOR:               DATE:               REVIEWER:         DATE:        VERIFIER:             DATE:
Vijay Chandra               Aug 08, 2005    I James Murphy    l Aug 11, 2005 James Murphy_         Aug. 11, 2005 Table 4.1 (contd.)
33.010          31.33       2558.20 34.010          30.82       2511.65 35.010          30.33       2465.96 36.010         29.85        2421.10 37.010         29.39        2377.03 38.010         28.95        2333.71 39.009         28.52        2291.11 40.009         28.11        2249.20 41.009         27.72        2207.96

(NC.DE-AP.ZZ-0002(Q), Rev. 12, Form 2)   CALCULATION CONTINUATION SHEET                        SHEET:   2 9)
CALC NO.:   S-1-SJ-MDC-1539              REV:       2    REF:                        CONT'D ON SHEET:
ORIGINATOR:               DATE:                REVIEWER:        DATE:      VERIFIER:              DATE:
Vijay Chandra               Aug 08, 2005 James Murphy Aug 11, 2005         James Murphy         I Aug. 11,2005 Table 4.2 11 Accumulator Pressure and Discharge Flow Rate Time History (Check Valve Free)
TIME    ACCUMULATOF Z FLOW RATE PRESSURE (SEC.)      (PSIG)           (GPM) 0.110        70.00            0.45 0.210        69.99           331.13 0.310        69.96           486.85 0.410        69.93           638.29 0.510         69.89          814.87 0.610         69.83         1040.08 0.710         69.76         1271.14 0.810        69.68          1500.05 0.910        69.59          1722.89 1.010       69.48          1917.43 1.110       69.36          2088.44 1.210       69.23          2244.83 1.310       69.10          2391.19 1.410       68.95          2529.92 1.510       68.80          2662.33 1.610        68.64         2789.15 1.710       68.47          2910.80 1.810       68.30          3027.64 1.910       68.12          3140.28 2.010        67.94          3248.70 3.010        65.86          4083.23 4.010        63.53          4587.00 5.010         61.13         4836.43 6.010       58.78          4922.30 7.010        56.54          4926.44 8.010        54.42          4869.63 9.010        52.45          4783.51 10.010         50.61          4668.92 11.010         48.90          4551.15 12.010         47.31          4437.40 13.010         45.83          4328.29 14.010         44.44          4223.55 15.010         43.14          4122.85 16.010         41.91          4025.89 17.010         40.76          3932.38 18.010         39.68          3842.07 19.010         38.65          3754.73 20.010         37.68          3670.15 21.010         36.77          3588.15 22.010         35.90          3507.44 23.010         35.07          3417.51 24.010         34.29          3324.09 25.010         33.55          3231.29 26.010         32.86          3140.28 27.011         32.19          3051.35 28.011         31.57          2964.53 29.011         30.97          2879.73 30.011         30.40          2796.88               (contd.)

(NC.DE-AP.ZZ-0002(0). Rev. 12, Form 2)  CALCULATION CONTINUATION SHEET                            SHEET:  30 CALC No.:   S-1-SJ-MDC-1539             REV:      2    REF:               -              CONTD ON SHEET:
ORIGINATOR:               DATE:              REVIEWER:         DATE:          VER IFIER:            DATE:
Vijay Chandra              Aug 08, 2005      James Murphy    I Aug   11, 2005 James Murphy          Aug. 11, 2005 Table 4.2 (contd.)
31.011          29.87        2715.87 32.011         29.36         2636.63 33.010         28.87         2559.07 34.010         28.41         2483.13 35.010         27.97         2408.74 36.010         27.55         2335.84 37.010         27.15         2264.40 38.010         26.76         2194.36 39.009         26.40         2125.71 40.009         26.05         2058.40 41.009         25.72         1992.44

(NC.DE-AP.ZZ-0002(Q), Rev. 12, Form 2)    CALCULATION CONTINUATION SHEET                        SHEET:  3 CALC NO.:   S-1 -SJ-MDC-1539              REV:      2    REF:               ._CONT'D         ON SHEET:
ORIGINATOR:                DATE:               REVIEWER:       DATE:            VERIFIER:         DATE:
Vijay Chandra               Aug 08, 2005 James Murphy l Aug 11, 2005            James Murphy      Aug. 11,2005 Table 4.3 12 Accumulator Pressure and Discharge Flow Rate Time History (Check Valve Maximum Lift = 60 deg)
TIME      ACCUMULATOR FLOW RATE PRESSURE (SEC.)       (PSIG)           (GPM) 0.110          70.00            0.45 0.210         69.99          301.90 0.310         69.97          443.15 0.410         69.94          581.47 0.510         69.90          719.06 0.610         69.85          911.44 0.710         69.79         1123.51 0.810         69.72         1336.27 0.910         69.63         1546.00 1.010         69.53         1750.23 1.110         69.42         1928.19 1.210         69.31         2083.43 1.310         69.18         2220.47 1.410         69.04         2344.12 1.510         68.90         2458.16 1.610         68.76         2564.62 1.710         68.60         2664.64 1.810         68.45         2758.91 1.910        68.28         2847.87 2.010         68.12         2931.91 3.010         66.27         3552.77 4.010          64.23         3923.24 5.010         62.14         4115.87 6.010         60.09         4175.89 7.010         58.12         4179.19 8.010         56.25         4146.63 9.010         54.48         4087.07 10.010          52.81         4017.04 11.010          51.25         3933.06 12.010          49.77         3848.67 13.010          48.39         3767.14 14.010          47.08         3688.53 15.010          45.85         3612.67 16.010          44.68         3539.36 17.010          43.58         3468.44 18.010          42.53         3399.73 19.010          41.54         3333.12 20.010          40.59         3268.45 21.010          39.69         3205.62 22.010          38.83         3144.50 23.010          38.01         3085.02 24.010          37.23         3027.06 25.010          36.48         2970.55 26.010          35.76         2915.40 27.011          35.07         2861-55              KE S&IE-psE    L C,    5k        'Ti  -Y27-12 e7 28.011          34.42         2808.93 >
29.011          33.79         2757.47 30.011          33.18         2707.11 31.011          32.60         2657.81                   (contd.)

(NC.DE-AP.ZZ-0002(Q), Rev. 12, Form 2)  CALCULATION CONTINUATION SHEET                          SHEET:  32.
CALC NO.:   S-1-SJ-MDC-1539             REV:      2     REF:                          CONT'D ON SHEET:
ORIGINATOR:               DATE:              REVIEWER:         DATE:        VERIFIER:             DATE:
Vijay Chandra               Aug 08, 2005     James Murphy      Aug 11, 2005 James Murphy          Aug. 11, 2005 Table 4.3 (contd.)
32.011         32.04         2609.50 33.010         31.50         2562.15 34.010         30.99         2515.70 35.010         30.49         2470.13 36.010         30.01         2425.37 37.010         29.55         2381.41 38.010         29.10         2338.21 39.009         28.67         2295.73 40.009         28.26         2253.94 41.009         27.86         2212.81

(NC.DE-AP.ZZ-0002(Q), Rev. 12, Form 2)   CALCULATION CONTINUATION SHEET                       SHEET:    33 CALC NO.:   S-1-SJ-MDC-1539              REV:       2    REF:  __CONT'D                    ON SHEET; ORIGINATOR:                DATE:               REVIEWER:         DATE:         VERIFIER:         DATE:
Vijay Chandra               Aug 08, 2005 l James Murphy         Aug 11, 2005 l James Murphy    I Aug. 11, 2005 Table 4.4 13 Accumulator Pressure and Discharge Flow Rate Time History (Check Valve Maximum Lift = 60 deg)
TIME ACCUMULATOF             FLOW RATE PRESSURE (SEC.)         (PSIG)          (GPM) 0.110        70.00            0.45 0.210         69.99          165.51 0.310         69.98          243.73 0.410         69.96          321.31 0.510         69.94          398.14 0.610         69.92          474.18 0.710         69.89          549.43 0.810         69.85          623.95 0.910         69.81          697.79 1.010        69.77          781.38 1.110        69.72          899.98 1.210        69.66         1024.42 1.310        69.60         1148.73 1.410        69.53         1271.91 1.510        69.45         1393.65 1.610        69.36         1513.77 1.710        69.27         1632.12 1.810        69.17         1748.59 1.910        69.06         1863.04 2.010         68.95         1966.00 3.010         67.61         2599.23 4.010         66.03         3035.70 5.010         64.29         3346.58 6.010        62.49         3558.90 7.010         60.67         3724.33 8.010        58.87         3821.96 9.010        57.10         3883.04 10.010          55.39         3899.61 11.010          53.75         3887.52 12.010          52.18         3859.46 13.010          50.69         3824.28 14.010          49.28         3779.19 15.010          47.93         3728.39 16.010          46.65         3670.69 17.010          45.43         3609.19 18.010          44.28         3547.07 19.010          43.19         3484.65 20.010          42.14         3418.66 21.010          41.16         3351.48 22.010          40.21         3285.91 23.010          39.32         3222.16 24.010          38.47         3160.15 25.010          37.65         3099.79 26.010          36.88         3040.97 27.011          36.13         2983.62                                          T 1E       86     e 28.011          35.42         2927 66J              PP     Sc5 E   7           TE E-    28   3 Ser.
29.011          34.74         2873.01 30.011          34.09         2819.60 31.011          33.46         2767.36                (contd.)

(NC.DE-APZZ-0002(Q), Rev. 12, Form 2)  CALCULATION CONTINUATION SHEET                     SHEET:    3 CALC NO.:   S-1-SJ-MDC-1539            REV:      2    REF:                      CONT'D ON SHEET:
ORIGINATOR:              DATE:              REVIEWER:         DATE:   VERIFIER:             DATE:
Vijay Chandra              Aug 08, 2005     James Murphy Aug 11, 2005 James Murphy          Aug. 11, 2005 Table 4.4 (contd.)
32.011         32.86        2716.25 33.010         32.29        2666.20 34.010         31.73        2617.16 35.010         31.20        2569.09 36.010         30.69        2521.93 37.010         30.19        2475.65 38.010         29.72        2430.21 39.009         29.26        2385.57 40.009        28.82         2341.69 41.009        28.40         2298.54

(NC.DE-AP.ZZ-002(Q), Rev. 12, Form 2)   CALCULATION CONTINUATION SHEET                             SHEET:    35 CALC NO.:   S-1-SJ-MDC-1539             REV:       2    REF:                            CONT'D ON SHEET:
ORIGINATOR:               DATE:               REVIEWER:      DATE:            VERIFIER:               DATE:
Vijay Chandra              Aug 08, 2005       James Murphy Aug 11, 2005       James Murphy            Aug. 11, 2005 Table 4.5 14 Accumulator Pressure and Discharge Flow Rate Time History (Check Valve Maximum Lift 60 deg)
TIME ACCUMULATOR FLOW RATE PRESSURE (SEC.)         (PSIG)         (GPM) 0.110         70.00          0.45 0.210         69.99         159.52 0.310         69.98         234.93 0.410         69.97         309.78 0.510         69.95         383.94 0.610        69.92         457.37 0.710         69.89         530.06 0.810         69.86         602.06 0.910         69.82         673.42 1.010        69.78         744.56 1.110        69.73         850.40 1.210        69.68         970.47 1.310        69.61        1091.35 1.410        69.55        1211.33 1.510        69.47        1330.04 1.610        69.39        1447.32 1.710        69.30        1563.04 1.810        69.20        1677.06 1.910        69.10        1789.29 2.010         68.99        1899.45 3.010        67.69        2546.68 4.010         66.12        2985.03 5.010         64.41        3303.10 6.010        62.63        3519.77 7.010         60.82        3693.01 8.010        59.02        3799.00 9.010        57.26        3869.68 10.010          55.54        3896.98 11.010          53.90        3892.90 12.010          52.32        3866.93 13.010          50.82        3835.78 14.010          49.40        3793.13 15.010          48.04        3745.87 16.010          46.75        3691.39 17.010          45.52        3632.00 18.010          44.36        3569.68 19.010          43.25        3507.99 20.010          42.20        3445.49 21.010          41.20        3379.10 22.010          40.26        3312.62 23.010          39.35        3247.83 24.010          38.49        3184.80 25.010          37.67        3123.46 26.010          36.89        3063.71 27.011          36.14        3005.46                                  ke.,       'fj:263&#xa3;'c 28.011          35.42        2948.62        EJ   e rStu(1 5.>W         5S 29.011          34.74        2893.13 30.011          34.08        2838.90                      (contd.)

(NC.DE-AP.ZZ-0002(Q), Rev. 12, Form 2)  CALCULATION CONTINUATION SHEET                          SHEET:
CALC NO.:   S-1 -SJ-MDC-1539            REV:      2    REF:                           CONT'D ON SHEET:
ORIGINATOR:               DATE:              REVIEWER:         DATE:        VERIFIER:             DATE:
Vijay Chandra               Aug 08, 2005     James Murphy      Aug 11, 2005 James Murphy          Aug. 11, 2005 Table 4.5 (contd.)
31.011         33.45         2785.88 32.011          32.85        2734.00 33.010         32.27         2683.20 34.010         31.71         2633.44 35.010         31.17         2584.67 36.010         30.66         2536.83 37.010          30.16        2489.88 38.010         29.69         2443.79 39.009         29.23         2398.51 40.009         28.78         2354.01 41.009         28.36         2310.25

11 Accumulator Flow Rate (gpm)
    *6000 5000   C_    __11     ______                           ______                         111-11" LA LA 4000               =~~~~~~~~~~~~~~~~~~~~~4
_=________==__= _A                 C 0.
co 3000 IL
__ __J             _  _-        -      -            _     _   _       _    t             0  r"1 L"
I 2000                                                                                               P co 1000 0
0          5      10         15            20            25          30         35      40 45 Time (sec) l Flow Rate (Check Valve Maximum Lift = 60 deg)l I -    Flow Rate (Check Valve Free)
FI67 I 2Z /1- ACCOuPMLJ To79.         DIS cHf- ,1g Ft.otv    /?Am.

11 Accumulator Pressure 80 70 its,,
60 3
C-l 50 la E 40 U)
I-                                              V Yt -                                   N' 30 20 10 0
0       5   10     15            20             25          30              35  40 45 Time (sec)
Accumulator Pressure (Check Valve Maximum Lift = 60 deg)              V
                        -  Accumulator Pressure (Check Valve Free)                               e',
F/ci 4#'     I/- ACetrrUtLaTdZ P           FSSt'C 7/          -SHISrc

(NC.DE-AP.ZZ-0002(Q), Rev. 12. Form 2)  CALCULATION CONTINUATION SHEET                                 SHEET:
CALC NO.:   S-1-SJ-MDC-1539             REV:       2     REF:                                CONT'D ON SHEET:
ORIGINATOR:                DATE:              REVIEWER:         DATE:              VERIFIER:             DATE:
Vijay Chandra                Aug 08, 2005    James Murphy       Aug 11, 2005       James Murphy          Aug. 11, 2005
: 5. Conclusions As calculated in Section 4, the acceptance criterion for pressure decay from 70 psig to 35 psig in the accumulators is as follows:
Acceptance    criterion for pressure decay time for 11 loop check valves is less than or equal to 25.26 seconds.
Acceptance    criterion for pressure decay time for 12 loop check valves is less than or equal to 25.62    -
seconds.
Acceptance    criterion for pressure decay time for 13 loop check valves is less than or equal to 27.13-seconds.
Acceptance    criterion for pressure decay time for 14 loop check valves is less than or equal to 27.13 seconds.
The time is measured from the instant when SJ54 valve disc begins to move.
: 6. Documents Affected Procedure SI1.OP-ST.SJ-0006 will be revised after this calculated is issued and approved by NRC..
: 7. Design Margin The calculation established the acceptance criterion for the pressure decay time to ascerain the valve functionality. A design margin is not applicable for this calculation.

CC TITLE 1Cu     D) LTA               IDNNO.C              J-           1S               SHEET 0 SI<7                                                    REFERENCE                                              4 ORIGINATOR V-cclgufM'l        Oc    CitlW3&A I
l         Vr-iih-10            _           40OF CALCULATION                     DATE        Q2 JAr5uI36      25PF.eVL             ;    n2r2 _       _
_D CONTINUATION SHEET                PEER REVIEW CL4(                                            jLt DATE                          iZ-               l____57 ______
: 8. REFERENCES,
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DE-AP.ZZ-0002(Q)                                                                                                        ATTACHMENT 2 DE-AP.ZZ-0002(Q)                                                                                                       ATVACHMENT 2

Document Control Desk                                   Attachment 2 LR-N05-0424 INSERVICE INSPECTION PROGRAM RELIEF REQUESTS S1-RR-04-VOI and V02 SALEM GENERATING STATION UNIT 1 FACILITY OPERATING LICENSE NO. DPR-70 DOCKET NO. 50-272

Document Control Desk                                                         Attachment 2 LR-N05-0424 Salem Unitl Inservice Test Program VALVE RELIEF REQUEST Sl -RR-04-VOI COMPONENTS:               11SJ55, 12SJ55, 13SJ55 and, 14SJ55 FUNCTION:
These check valves are located in the discharge lines from the respective safety injection accumulators. The valves perform an active safety function in the open and closed positions. The valves must be capable of opening during a large break Loss of Coolant Accident (LOCA) to provide a flow path for Safety Injection (SI) accumulator discharge to the Reactor Coolant System (RCS) cold legs when reactor pressure drops below accumulator pressure. The valve must be capable of closure to prevent divergence of safety injection and recirculation flow subsequent to the accumulators dumping their contents. This valve also functions as an RCS pressure isolation valve.
This function prevents exposing the SI accumulators to RCS pressure that would compromise accumulator pressure boundary integrity.
CATEGORY:                AC CLASS:                   1 TEST REQUIREMENTS:
Open & Closed Position - Check valves shall be exercised at least once every 3 months in accordance with the requirements of OMa-1988, Part 10-4.3.2.1.
BASIS FOR RELIEF:
During power operation, these valves are maintained in the closed position by RCS pressure on the downstream side of the valve disk. Quarterly exercising these valves to the full or partially open position during power operation is impracticable because the only flow path is into the RCS. The operating accumulator pressure cannot overcome normal operating RCS pressure to establish flow. Full stroke exercising these valves at cold shutdown is impracticable because of' the potential for low temperature over pressurization due to insufficient expansion volume in the RCS to accept required flow.
This testing could also result in the intrusion of nitrogen into the core, which could interrupt the normal circulation of cooling water flow. The associated motor-operated isolation valve (one per accumulator) cannot be partially stroked, but must complete a full stroke before changing direction. This could cause a complete discharge of the water volume in the accumulator and possibly inject nitrogen into the reactor coolant system, causing gas binding of the residual heat removal pumps and a subsequent loss of shutdown cooling. These valves are also verified to close by leak testing per plant technical specifications for Pressure Isolation Valves (PIV\s). Reverse exercising these check valves at any time other than refueling is burdensome without a commensurate increase in the level of quality and safety. The valves are normally in the closed position. Accumulator pressure is continuously monitored to ensure that an adequate nitrogen blanket is maintained and to verify the lack of RCS inleakage.
I

Document Control Desk                                                         Attachment 2 LR-N05-0424 ALTERNATE TESTING:
These check valves shall be full stroke exercised to the open position during refueling utilizing a reduced pressure, partial accident flow test method. This controlled method is performed with the reactor vessel head removed. The test method establishes accumulator pressure of 70 psig, accumulator level between 96 and 100% and refueling cavity level between 125.5 and 126.5 feet. After establishment of the fixed parameters, the test then measures the time interval required for the pressure in the associated safety injection accumulator to drop from an initial pressure to 35 psig. Engineering calculation S-1 -SJ-MDC-1 539 Rev. 2, "Accumulator Pressure Decay Time During Discharge Test" establishes the test conditions and acceptance criterion and concludes that this methodology is adequate in determining the associated check valve disk moves to the full open position. Information from other nuclear stations was reviewed regarding partial flow, full stroke exercising using a calculational method. The testing performed at Salem provides a valid methodology for verifying the open function even though the test method differs from the various methods reviewed. Approval of the methodology described above (and in calculation S-1 -SJ-MDC-1 539 Rev. 2) will allow for establishing acceptance criteria if changes are made to accumulator motor operator discharge valve stroke times.
In attempting to utilize the guidance of NUREG 1482, Section 4.1.2- "Exercising Check Valves with Flow and Nonintrusive Techniques", nonintrusive equipment was used during informational testing. These valves are Darling Valve & Manufacturing Co. "Clear Waterway" swing checks that are fabricated without a backstop. The valve design permits the disk to move sufficiently out of the flow path without contacting the valve body. Nonintrusive testing using acoustic and magnetic technology provides sufficient data for monitoring degradation on a periodic basis; however, full open acoustic indication is not detected nor is expected to show on the test trace. Nonintrusive testing does not verify full stroke exercising, however occasional use of this equipment during the pressure decay test provides useful condition monitoring information.
This method of forward flow check valve testing complies with the guidance provided in Generic Letter 89-04, Attachment 1, Position 1.
Regarding reverse flow exercise testing, these valves shall be verified in the closed position during the process of performing seat leakage testing at the frequency specified in Unit I Technical Specification (TS) 4.4.6.3 and Unit 2 TS 4.4.7.2.2.
The open stroke frequency change was previously approved in NRC Safety Evaluation April 15, 1994 (TAC Nos. M88144 and M88145)
The use of the alternate testing methodology was previously approved in NRC Safety Evaluation March 12, 1999 (TAC Nos. M98259 and M98260) 2

Document Control Desk                                                        Attachment 2 LR-N05-0424 Salem Unit I Inservice Test Program VALVE RELIEF REQUEST S1-RR-04-V02 COMPONENTS:             11 SJ56, 12SJ56, 13SJ56 and, 14SJ56 FUNCTION:
These check valves are located inthe discharge lines from the respective safety injection accumulators downstream of the branch connection from Residual Heat Removal System (RHR). The valves perform an active safety function in the open position. The valves must be capable of opening during, a large break Loss of Coolant Accident (LOCA) to provide a flow path for Safety Injection (SI) accumulator discharge to the Reactor Coolant System (RCS) cold legs when reactor pressure drops below accumulator pressure. The valve must also be capable of opening to provide a path for low head safety injection and cold leg recirculation flow. This valve also functions as an RCS pressure isolation valve. This function prevents exposing the SI accumulators and RHR system piping to RCS pressure.
CATEGORY:               AC CLASS:                  1 TEST REQUIREMENTS:
Open & Closed Position - Check valves shall be exercised at least once every 3 months, in accordance with the requirements of OMa-1 988, Part 10-4.3.2.1.
BASIS FOR RELIEF:
During power operation, these valves are maintained in the closed position by RCS pressure on the downstream side of the valve disk. Quarterly exercising these valves to the full or partially open position during power operation is impracticable because the only flow path is into the RCS. The operating accumulator pressure cannot overcome normal operating RCS pressure to establish flow. Full stroke exercising these valves at cold shutdown is impracticable because of the potential for low temperature over pressurization due to insufficient expansion volume in the RCS to accept required flow. This testing could also result in the intrusion of nitrogen into the core, which could interrupt the normal circulation of cooling water flow. The associated motor-operated isolation valve (one per accumulator) cannot be partially stroked, but must complete a full stroke before changing direction. This could cause a complete discharge of the water volume in the accumulator and possibly inject nitrogen into the reactor coolant system, causing gas binding of the residual heat removal pumps and a subsequent loss of shutdown cooling.
These valves are also verified to close by leak testing per plant technical specifications for Pressure Isolation Valves (PlV's). Reverse exercising these check valves at any time other than refueling is burdensome without a commensurate increase in the level of quality and safety.
ALTERNATE TESTING:
These check valves shall be full stroke exercised to the open position during refueling utilizing a reduced pressure, partial accident flow test method. This controlled method is performed with the reactor vessel head removed. The test method establishes accumulator pressure between 3

Document Control Desk                                                        Attachment 2 LR-N05-0424 67 and 70 psig, accumulator level between 96 and 100% and refueling cavity level between 125.5 and 126.5 feet. After establishment of the fixed parameters the test then measures the time interval required for the pressure in the associated safety injection accumulator to drop from an initial pressure to 35 psig. Engineering calculation S-1 -SJ-MDC-1 539 Rev. 2, "Accumulator Pressure Decay Time During Discharge Test" establishes the test conditions and acceptance criterion and concludes that this methodology is adequate in determining that the associated check valve disk moves to the full open position. Information from other nuclear stations was reviewed regarding partial flow, full stroke exercising using a calculational method.
The testing performed at Salem provides a valid methodology for verifying the open function even though the test method differs from the various methods reviewed. Approval of the methodology described above (and in calculation S-1 -SJ-MDC-1 539 Rev. 2) will allow for establishing acceptance criteria if changes are made to accumulator motor operator discharge valve stroke times.
In attempting to utilize the guidance of NUREG 1482, Section 4.1.2 - "Exercising Check Valves with Flow and Nonintrusive Techniques", nonintrusive equipment was used during informational testing. These valves are Darling Valve & Manufacturing Co. "Clear Waterway" swing checks that are fabricated without a backstop. The valve design permits the disk to move sufficiently out of the flow path without contacting the valve body. Nonintrusive testing using acoustic and magnetic technology provides sufficient data for monitoring degradation on a periodic basis; however, full open acoustic indication is not detected nor is expected to show on the test trace.
Nonintrusive testing does not verify full stroke exercising however occasional use of this equipment during the pressure decay test provides useful condition monitoring information.
The valves shall be partial stroke exercised at cold shutdown during normal RHR shutdown cooling operations.
This method of forward flow check valve testing complies with the guidance provided in Generic Letter 89-04, Attachment 1, Position 1.
Regarding reverse flow exercise testing, these valves shall be verified in the closed position during the process of performing seat leakage testing at the frequency specified in Unit 1 Technical Specification (TS) 4.4.6.3 and Unit 2 TS 4.4.7.2.2 The open stroke frequency change was previously approved in NRC Safety Evaluation April 15, 1994 (TAC Nos. M88144 and M88145).
The use of the alternate testing methodology was previously approved in NRC Safety Evaluation March 12,1999 (TAC Nos. M98259 and M98260) 4

Document Control Desk                                   Attachment 3 LR-N05-0424 INSERVICE INSPECTION PROGRAM RELIEF REQUESTS S1-RR-04-VOI and V02 SALEM GENERATING STATION UNIT I FACILITY OPERATING LICENSE NO. DPR-70 DOCKET NO. 50-272 General Approach Proposed For Full Open Testing Of Accumulator Check Valves

Document Control Desk                                                  Attachment 3 LR-N05-0424 General Approach Proposed For Full Open Testing Of Accumulator Check Valves PSEG procedure S1.01P-ST.SJ-0006 (Q), Inservice Testing Safety Injection Valves Mode 6, provides instructions necessary to perform Inservice Inspection and Testing IAW Technical Specification 4.0.5 for the following Safety Injection (Accumulator) check valves:
o   11SJ55 and 11 SJ56 - 13 Accumulator Discharge to Cold Leg o   12SJ55 and 12SJ56 - 14 Accumulator Discharge to Cold Leg o   13SJ55 and 13SJ56 - 13 Accumulator Discharge to Cold Leg o   14SJ55 and 14SJ56 - 14 Accumulator Discharge to Cold Leg The testing procedure involves open-stroke testing each tank's discharge check valves with the reactor depressurized and the vessel head removed. The initial tank liquid volume is set to 96 - 100%, and initial tank pressure is set at 70 psig. Flow is initiated by opening the tank motor operated valve (MOV). Per the procedure, the valve is to be stroked fully open, left in the open position until the Accumulator reaches a pressure of 35 psig, and then closed. Tank pressure is set low enough to prevent injection of nitrogen gas into the reactor coolant system (RCS). Velocities achieved should also be sufficient to fully stroke the valves, according to calculation.
The bases for the testing are captured in Calculation No. S-1-SJ-MDC-1 539 Rev.2, Accumulator Pressure Decay Time During Discharge Test. The purpose of this calculation is to establish a mathematical model of test conditions to develop acceptance criterion for establishing the valves tested go full open. The description below describes the calculation with reactor head removed as is currently performed during testing.
The following parameters are fixed by procedure:
o The Unit is in Mode 6 (Defueled) with the Upper Intemals installed.
o   Safety Injection Accumulators are at a fixed and defined pressure.
o   Safety Injection Accumulators are at a fixed and defined level.
o    Refueling Cavity is at a fixed and defined level.
o    Acceptance criteria - Maximum blowdown time in seconds.
o Failure of testing to result in corrective action for both SJ55 and 56.
During valve stroking, Accumulator pressure and level measurements, which are acquired from inputs from normal plant instrumentation, are recorded. Based on the measured level and pressure change with time, the relationship between the check valve disc angle, flow rate and pressure difference are calculated using information supplied by Westinghouse Letter PSE 530 for full lift velocity for the valves being tested. The loss factor for the MOV isolation valve as well as friction losses associated 1

Document Control Desk                                               Attachment 3 LR-N05-0424 with the piping system is calculated. Equations of motion are then solved simultaneously.
The calculation solves six unknown variables simultaneously using a FORTRAN computer program. The following are calculated to determine flow and pressure at a point in time under a variety of disc angles:
o Accumulator level elevation o Accumulator gas pressure o   MOV loss factor o   Check valve Delta P o   Derivatives o   Values at new time step 2}}