LR-N08-0308, Attachment 3 - Salem, Units 1 and 2 - Calculation S-2-SJ-MDC-1394, Rev. 5, Accumulator Pressure Decay Time During Discharge Test.
| ML090130526 | |
| Person / Time | |
|---|---|
| Site: | Salem  |
| Issue date: | 07/20/2005 |
| From: | Chandra V Public Service Enterprise Group |
| To: | Office of Nuclear Reactor Regulation |
| References | |
| LR-N08-0308 S-2-SJ-MDC-1394, Rev 5 | |
| Download: ML090130526 (49) | |
Text
{{#Wiki_filter:LR-N08-0308 ATTACHMENT 3 Salem Nuclear Generating Station, Unit Nos. 1 and 2 Facility Operating License Nos. DPR-70 and DPR-75 INRC Docket Nos. 50-272 and 50-311 Calculation S-2-SJ-MDC-1394, Rev. 5 Accumulator Pressure Decay Time during Discharge Test
(NC.DE-AP.ZZ-0002(Q), Rev. 11, Form 1) CALCULATION COVER SHEET Page I of A'__. CALCULATION NUMBER: S-2-SJ-MDC-1394 REVISION: 5 TITLE:
- Accumulator Pressure Decay During Discharge Test
#SHTS (CALC): 48 #ATTI#SHTS: 3/8 #IDVI50.59 SHTS: 3/9 #TOTAL SHTS: 68 CHECK ONE,
[ FINAL [I INTERIM (Proposed Plant Change) C VOID O FINAL (Future Confirmation Req'd, enter tracking Notification number:) SALEM OR HOPE CREEK; Z Q - LIST [ IMPORTANT TO SAFETY 0 NON-SAFETY RELATED HOPE CREEK ONLY: OQ r-Qs E]Qsh O]F []R O ARE STATION PROCEDURES IMPACTED? YES [ NO [1 IF"YES", INTERFACE WITH THE SYSTEM ENGINEER & PROCEDURE SPONSOR. ALL IMPACTED PROCEDURES SHOULD BE IDENTIFIED IN A SECTION IN THE CALCULATION BODY [CRCA 70038194-0280J. INCLUDE AN SAP OPERATION FOR UPDATE AND LIST THE SAP ORDERS HERE AND WITHIN THE BODY OF THIS CALCULATION. 70046211-0040 El CP and ADs INCORPORATED (IF ANY): None DESCRIPTION OF CALCULATION REVISION (If anolicable.):
- 1. The SJ54 valve stroke time data was inadvetantly left out in Revision 4. It has been Included in Revision 5.
Determine the acceptance criterion of the pressure decay time for the accumulator discharge test. The acceptance criterion will be incorporated in procedure S2.OP-ST.SJ-0006. Acceptance criterion for pressure decay time for 21 loop check valves is less than or equal to 28.13 seconds. Acceptance criterion for pressure decay time for 22 loop check valves is less than or equal to 27.79 seconds. Acceptance criterion for pressure decay time for 23 loop check valves is less than or equal to 28.14 seconds. Acceptance criterion for pressure decay time for 24 loop check valves is less than or equal to 28.10 seconds. The pressure decay time is measureg fro he molment when SJ54 valve disk begins to move.
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(NC.DE-AP.ZZ-0002(Q), Rev. 11, Form 2) CALCULATION CONTINUATION SHEET SHEET: 3 CALC No.: S-2-SJ-MDC-1394 REV: 5 REF: CONT'D ON SHEET: ORIGINATOR: DATE: REVIEWER: DATE; VERIFIER: DATE: Vijay Chandra July 20, 2005 James Murphy July 20, 2005 Revision History Revision Date Description No. 0_ Oct. 24, 1994 Calculation was issued to correct the existing acceptance criterion of 37 sec. 1 Feb. 5, 1996 Minor typographical errors were corrected. There was no change In the results. 2 Oct. 21, 2003 DCP's 80017352, 80017353, 80017354, 80017354 changed the stroke times of 21SJ54, 22SJ54, 23SJ54, and 24 SJ54 valves. This change would result in a revised acceptance criterion. A minor error in the accumulator tap elevation was corrected. 3 May 13, 2004 Pages were renumbered. Page numbers 2A and 17A were causing confusion and were eliminated. The 50.59 safety evaluation was not revised because there is no change to the contents. 4 Jul 08, 2005 Since the pressure decay time is measured from the moment the disk begins to move, the SJ54 valve stroke time has been adjusted to represent the Oisk travel time during the opening stroke. The calculation common to all four loops has been replaced by four individual calculations (one fore each loop). Since the test is done with the reactor head off, the reactor head on case has been removed 5' July 20, 2005 The SJ 54 valve stroke time data was inadvertantly left out in, Rev. 4, It was
.,___included ip Rev. 5 on page 18.
Page Revision Index Page Revision Page Revision Page Revision Page Revision 1 5 19 4 37 4 2 4 20 4 38 4 3 5 21 4 39 4 4 4 22 4 40 4.... 5 4 23 4 41 4 6 4 24 4 42 .4 7 4 25 4 43 4 8 2 26 4 44 4 9 2 27 4 45 4 10 0 28 4 46 4 11 0 29 4 47 4 "____"" 12 0 30 4 48 4 13 0 31 4 Att. 1 4 14 0 32 4 Att. 2 4 _ 15 0 33 4 Att. 3 4 .. ... 16 0 34 4 17 4 35 4 18 5 36 4
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- 1. INTRODUCTION Accumulator discharge test Is done In Mode 6 In accordance with procedure S2.OP-ST.SJ-0006(Q) to establish the adequacy of check valves 21SJ55, 21SJ56, 22SJ55, 22SJ56, 23SJ55, 23SJ56, 24SJ55, 24SJ58 valves. The purpose of this calculation is to establish the pressure decay criterion for the accumulator pressure. In revision 3 of this calculation (S-2-SJ-MDC-1394), an acceptance criterion of the pressure decay time was calculated based on the gross value of the SJ54 valve stroke, It was realized that there is a dead period Immediately after SJ54 valve opening push button is pressed and the valve disk begins to move. The SJ54 valve stroke time has been reduced to account for this delay.
The pressure decay time of the accumulator will also be measued from the moment the disk'begins to move. In this revision of the calculation, a revised acceptance criterion of the accumulator pressure decay time has been calculated. The SJ54 valve disk opening stroke times were measured and are given In Attachment land were used. To keep the analysis as reaalistic as possible, four separate criteria (one for each loop) were established. Since the test is done with the reactor head off, the analysis pertaining to the situation when the reactor head is on and the venting occurs through the pressurizer has been removed. History: Surveillance test procedure S2.OP-ST.SJ-0006, Revision 10, tests that the forward flow of check valves SJ55 and SJ56 for Accumulators Numbers 21, 22, 23, and 24 are unobstructed and the valve disc is non-degraded or free moving. The procedure and Relief Requests S2-RR-03-VOI and S2-RR-03-V02 satisfy Technical Specification section 4.0.5 requiring that in-service testing of ASME Code Class 1, 2 and 3 components be performed In accordance with ASME Section XI. The Accumulator check valves are said to be full open in the existing ST procedure when the Accumulator pressure reaches 35 psig In a time period no longer than 28.1 seconds. The justification for the time limit acceptance criteria is found in design calculation S-2-SJ-MDC-1394, Revision 3. The NRC accepted the results of the calculation as a sufficient means of testing the Accumulator check valves (Reference SER dated Jan 2, 2004). When the check valves of 21, 22, 23, and 24 loop check valves SJ55 and SJ56 were tested in April 2005, the pressure decay time of 21accumulator exceeded 28.1 second (the actual measured time was 28.8 seconds), The pressure decay Ctimes of 22, 23, and 24 accumulators were less than 28.1 seconds. As per the requirements of the SER, 21SJ55 and 21SJ56 valves were opened and Inspected. The valves were found In satisfactory condition. z Investigation of this Issue revealed that there exists a delay between pressing the open push button and the Initiation of SJ54 valve opening stroke. As a result the pressure decay Initiation Is delayed by the dead period. This delay time Is also built in the stroke time of the SJ54 MOV. To determine a more realistic acceptance criteria, the delay time was subtracted from the previously established SJ54 valves stroke times. in other words, the stroke time of SJ54 valves is the disk opening time. The calculation S-2-SJ-MDC-1 394 was revised to incorporate this shorter stroke time. Also, since the 0four loops are different from each other, each loop was analyzed individually and their individual pressure decay acceptance criteria were calculated. w Li Subtracting the delay time from the stroke time of SJ54 valve and incorporating the Individual geometry of the loops 7' reduced the pressure decay acceptance criterion for 22, 23, and 24 loops and the acceptance criterion of 21 loop remained unchanged. When the measured decay times (after they were adjusted for the delay in beginning of pressure decay) are compared to the revised acceptance criteria, all valves pass the test. This demonstrates that the test was Sgood and had extra conservatism. To keep the test realistic, the excess conservatism has been removed and the W> revision 4 of calculation S-2-SJ-MDC-1394 was issued. 0 U-
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(NC.DE-AP.ZZ-0002(Q), Rev. t1, Form 2) CALCULATION CONTINUATION SHEET SHEET: CALC NO.: S-2-SJ-MDC-1394 REV: 5 REF: CONT'D ON SHEET: I ORIGINATOR: DATE: REVIEWER: DATE: VERIFIER: DATE: Vijay Chandra July 20, 2005 James Murphy July 20, 2005 James Murphy July 20, 2005 Actual measured disk opening stroke time of four SJ54 valves are as follows (From Attachment 1 and 2). Yalu pOoenina Stroke time (sec) 21SJ54 18.7 22SJ54 18.0 23SJ54 19.7 24SJ54 18.76 As per attachment 2, the initial dead time that exists between the instant when the SJ54 valve opening push button is pressed and the valve disk begins to open has been subtracted from the gross stroke times. 3.5 The Piping Between Accumulators and Cold Legs The details of piping between the accumulators and the respective cold legs is shown in the following pages. The frictional resistance coefficients and the inertial coefficients are shown for each loop. The frictional resistance coefficients of the SJ54 gate valves and the SJ55 and SJ56 check valves are not shown in these tables. The valve resistance coefffients were treated separately because they are time dependent numbers.
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(NC.DE-AP.ZZ-0002(Q), Rev. 11, Form 2) CALCULATION CONTINUATION SHEET SHEET: CALC NO.: S-2-SJ-MDC-1394 REV: 4 REF: CONTD ON SHEET: .2-ORIGINATOR: DATE: REVIEWER: DATE: VERIFIER: DATE: Vijay Chandra July 8, 2005 James Murphy July 11, 2005 James Murphy July 11, 2005 Table 3.1 Computer Program Listing: Analysis of 21 Loop, Check Valve Maximum Lift 60 deg. DIMENSION VVOF(12),CVCV(12) OPEN(1 ,FILE='Acc2l-hoff-60deg.out', STATUS='old) DATA VVOFIO.,.05,. 1,.2,.3,.4,.5,.6,.7,.8,.9,1 / DATA CVCV/0., 0.0194, 0.055, 0.1, 0.146, 0.204,
# 0.277,0.3536,0.4613,0.6086,0.767,1.1 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=38.06 C SLOA = SUMMATION L/A [FT**(-1)j SLOA=261.6 C VOT1 = DISK MOVEMENT TIME OF SJ54 GATE VALVE (SEC) VOT1 =18.7 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 SVNAZ=41 9.9
'0 VNA=VNAZ PAZ=84.7*144.
PA=PAZ ( Q=.001 oZCAV=127.
<z WRITE(1,101) 101 FORMAT(T1 9'TIME', T28'ACCUMULATOR PRESSURE FLOW RATE')
()D 103 FORMAT(TI 9'(SEC.)',T28' (PSIG) (GPM) ',//)
< WRITE(1,103)
V- 31 NSTEP=NSTEP+1 TIME=TIME+DT 0 C CALCULATE ACCUMULATOR LEVEL ELEVATION 0 VWA=1350.-VNA
>ZA=(VWA+7814.85)/95.72 L* C CALCULATE ACCUMULATOR GAS PRESSURE o PA=PAZ*(VNAZIVNA)**GAM z C CALCULATE SJ54 LOSS FACTOR GVKZ=.15 L* IF(TIME .LT. VOT1) THEN w" VOF=TIMENOT1 CALL INTER(VOF,CVND,12,VVOF,CVCV) 0 GVK=GVKZ/(CVND*CVND) w ELSE wGVK=GVKZ IENDIF C CALCULATE CHECK VALVE DP o VEL=Q/AREA n IAV2=38.3/(VEL*VEL)
C/) I,[ SINPHI=0.5*(SQRT(AV2*-2+4.-AV2) (contd.) 0* Qýý wL (-I-
(NC.DE-AP.ZZ-0002(Q), Rev. 11, Form 2) CALCULATION CONTINUATION SHEET SHEET: 27 CALC NO.: S-2-SJ-MDC-1 394 REV: 4 REF: CONT'D ON SHEET: 2 8 ORIGINATOR: DATE: REVIEWER: DATE: VERIFIER: DATE: VWlay Chandra July 8, 2005 James Murphy July 11, 2005 James Murphy July 11, 2005 Table 3.1 (contd.) 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+DQDrDT 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(I, 102) TIME,+(PAI144.-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(XY,N,XX,YY) DIMENSION XX(N),YY(N) IF(X .LT. XX(1) .OR. X .GT. XX(N)) GO TO 3 0.J DO2 J=2,N IF(X .GE. XX(J-1) .AND. X .LE. XX(J)) GO TO 101 GO TO 2 0> 101 Y=YY(J-1)+(YY(J)-YY(J-1))*(X-XX(J-I))/ I (XX(J)-XX(J-1)) z< RETURN 2 CONTINUE 3 WRITE(6,1) X,(XX(1),I=1,N)
-< I FORMAT(' BEYOND RANGE',G10.4,5X,20G10.4)
RETURN END 0 c/) Ld z Q-1 CD2 w Li (./) 0 n c/) LJ 00 0D
-y L.J
(NC.DE-AP.ZZ-0002(Q), Rev. 11, Form 2) CALCULATION CONTINUATION SHEET SHEET: 2b CALC NO.: S-2-SJ-MDC-1 394 REV: 4 REF: CONT'D ON SHEET: Q____ ORIGINATOR: DATE: REVIEWER: DATE: VERIFIER: DATE: Viljay Chandra July 8, 2005 James Murphy July 11, 2005 James Murphy July 11, 2005 Table 3.2 Computer Program Listing: Analysis of 22 Loop, Check Valve Maximum.Lift = 60 deg. DIMENSION WOF(12),CVCV(12) OPEN(1 ,FiLE='Acc22-hoff-60deg.out', STATUS='old') DATA VVOF/0.,.05,. ,.2,.3, .4,.5, .6,.7,.8,.9,1 ./ 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 AKASQ = SUMMATION K/A**2 [FT**(-4)1 SKASQ=36.82 C SLOA = SUMMATION LIA [FT**(-1)] SLOA=248.2 C VOTI = DISK MOVEMENT TIME OF SJ54 GATE VALVE (SEC) VOT1=18.0 C CONSTANTS GAM=1.3 G=32.174 RHO=t .94 AREA=0.394 DT=0.01 PCAV= 14.7*144. C INITIAL CONDITIONS TIME=0.1 NSTEP=-1 VNAZ=419.9 0 VNA=VNAZ Z PAZ=84.7*144. PA=PAZ C0 Q=.001 ZCAV= 27. z< WRITE(1,101) 101 FORMAT(T19'TIME', T28'ACCUMULATOR PRESSURE FLOW RATE') o 103 FORMAT(T19'(SEC.)',T28' (PSIG) (GPM) ',11)
< WRITE(1,103)
V31 NSTEP=NSTEP+I TIME=TIME+DT C CALCULATE ACCUMULATOR LEVEL ELEVATION _ VWA=1350.-VNA
>ZA=(VWA+7814,85)/95.72 w
W*- C CALCULATE ACCUMULATOR GAS PRESSURE o PA=PAZ*(VNAZIVNA)**GAM z C CALCULATE SJ54 LOSS FACTOR GVKZ=. 15 IF(TIME .LT. VOT1) THEN >VOF=TIMENOT1 CALL INTER(VOF,CVND,12,VVOF,CVCV) 0 GVK=GVKZ/(CVND*CVND) h ELSE '" GVK=GVKZ (Contd.) 0 0 (w. fto
(NC.DE-AP.ZZ-0002(Q), Rev. 11, Form 2) CALCULATION CONTINUATION SHEET SHEET: 2i CALC NO.: S-2-SJ-MDC-1 394 REV: 4 REF: CONT'D ON SHEET: 230 ORIGINATOR: DATE: REVIEWER: DATE: VERIFIER: DATE: Vijay Chandra July 8, 2005 James Murphy July 11, 2005 James Murphy July 11, 2005 Table 3.2 (Contd.) ENDIF C CALCULATE CHECK VALVE DP VEL=Q/AREA 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)/(RHO*SLOA)
DVNADT=Q C CALCULATE VALUES AT NEW TIME STEP QQ=Q+DQDT*DT VVNA=VNA+DVNADT*DT IF (TIME .LE. 2.) THEN IF(MOD(NSTEP,10) .EQ. 0)WRITE(1,102) TIME,+(PAI144.-14.7),
# Q*7.48*60.
ELSE IF(MOD((NSTEP+1 0),100) .EQ. 0)WRITE(1,102) TIME,+(PA/144.-14.7),
# Q*7.48*60.
ENDIF 102 FORMAT(F23.3,8F1 7.2) C UPDATE THE OLD VARIABLES Q-QQ VNA=VVNA IF(TIME .GT. 41.) STOP GO TO 31 END Z SUBROUTINE INTER(X,YIN,XXYY) DIMENSION XX(N),YY(N) 0 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))/
.< 1 (XX(J)-XX(J-1))
c--RETURN 2 CONTINUE 0 3 WRITE(6,1) X,(XX(I),=1,N) _ 1 FORMAT(' BEYOND RANGE',G10.4,5X,20G10.4)
> RETURN L*JEND i,
0 I-U- 0 z V") D
(NC.DE-AP.ZZ-0002(Q), Rev. 11, Form 2) CALCULATION CONTINUATION SHEET SHEET: 3 0 CALC NO.: S-2-SJ-MDC-1 394 REV: 4 REF: CONT'D ON SHEET; ORIGINATOR: DATE. REVIEWER: DATE: VERIFIER: DATE: Vijay Chandra July 8, 2005 James Murphy July 11, 2005 James Murphy July 11, 2005 Table 3.3 Computer Program Listing: Analysis of 23 Loop, Check Valve Maximum Lift =60 deg. DIMENSION VVOF(12),CVCV(12) OPEN(1 ,FILE='Acc23-hoff-60deg.out', STATUS='old') DATA VVOF/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=36.97 C SLOA = SUMMATION L/A [FT**(-1)] SLOA=227.0 C VOT1 = DISK MOVEMENT TIME OF SJ54 GATE VALVE (SEC) VOT1 =19.7 C CONSTANTS GAM=1.3 G=32.174 RHO=1.94 AREA=0.394 DT=0.01 PCAV=1 4.7*144. C INITIAL CONDITIONS TIME=0.1 VNSTEP=-1 C VNAZ=419.9 z VNA=VNAZ PAZ=84.7*144. PA=PAZ Q=.001 Z< ZCAV=127, WRITE(1,101) 101 FORMAT(T19'TIME', T28'ACCUMULATOR PRESSURE FLOW RATE')
< 103 FORMAT(T1 9'(SEC.)',T28' (PSIG) (GPM) ',/H)
V- WRITE(1,103) 31 NSTEP=NSTEP+I TIME=TIME+DT C CALCULATE ACCUMULATOR LEVEL ELEVATION
>VWA=1350,-VNA L" ZA=(VWA+7814.85)/95.72 C CALCULATE ACCUMULATOR GAS PRESSURE z PA=PAZ*(VNAZ/VNA)**GAM C CALCULATE SJ54 LOSS FACTOR L-Q:ý GVKZ=.15.
U" IF(TIME .LT. VOT1) THEN VOF=TIMENOTI 0 CALL INTER(VOF,CVND,12,WOF,CVCV) _ GVK=GVKZ/(CVND*CVND) U" ELSE dn GVK=GVKZ ENDIF o C CALCULATE CHECK VALVE DP Cn VEL=Q/AREA w, AV2=38.3/(VEL*VEL) (contd.)0 LuJ
(NC.DE-AP.Z7-0002(Q), Rev. 11, Form 2) CALCULATION CONTINUATION SHEET SHEET: 3 I[. CALC NO.: S-2-SJ-MDC-1 394 REV: 4 REF: _CONTD ON SHEET: r2-ORIGINATOR: DATE: REVIEWER: DATE: VERIFIER: DATE: Vijay Chandra July.8, 2005 James Murphy July..1, 2005 James Murphy July11, 2005 Table 3.3 (contd.) S INPH I=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 NBN TIME STEP QQ=Q+DQDT*DT VVNA=VNA+DVNADT*DT IF (TIME .LE. 2.) THEN IF(MOD(NSTEP, 10) .EQ. 0)WRITE(1,1 02) TIM E,+(PA/1 44:-14.7),
# Q*7.48*60.
ELSE IF(MOD((NSTEP+10),1 00) .EQ. 0)WRITE(1,102) TIME,+(PA1444-14.7),
# 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,XXYY) 0" 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-I ))/ 1 (XX(J)-XX(J-1)) D RETURN
< 2 CONTINUE 3 WRITE(6,1) X,(XX(I),I=l,N) 1 FORMAT(' BEYOND RANGE',G10.4,5X,20G10.4)
RETURN 0END w z U-LLJ 0
-LJ m
V/) z 0 a_ O3 wy 0* 0* iLi V)
(NC.OE-AP.ZZ-0002(Q), Rev. 11, Form 2) CALCULATION CONTINUATION SHEET SHEET: 32. CALC NO.: S-2-SJ-MDC-1394 REV: 4 REF: CONT'D ON SHEET: ' 3 ORIGINATOR: DATE: REVIEWER: DATE: VERIFIER: DATE:
.Vijay Chandra July 8, 2005 James Murphy July 11, 2005 James Murphy July 11, 2005 Table 3.4 Computer Program Listing: Analysis of 24 Loop, Check Valve Maximum Lift = 60 deg.
DIMENSION VVOF(1 2),CVCV(1 2) OPEN(1 ,FILE='Acc24-hoff-60deg.out', STATUS='old') DATA VVOF/0., .05,.1 ,.2,.3, .4,.5, .6,.7,.8,.9,1 ./ 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=37.77 C SLOA = SUMMATION L/A FT**(-1 )] SLOA=247.7 C VOTI = DISK MOVEMENT TIME OF SJ54 GATE VALVE (SEC) VOT1 =18.76 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=419.9 VNA=VNAZ z PAZ=84.7*1 44. PA=PAZ U Q=.001 ZCAV=127. WRITE(1,101) 101 FORMAT(T19'TIME', T28'ACCUMULATOR PRESSURE FLOW RATE') D 103 FORMAT(T19'(SEC.)',T28' (PSIG) (GPM) ',H/) WRITE(1,103) C-31 NSTEP=NSTEP+I TIME=TIME+DT C CALCULATE ACCUMULATOR LEVEL ELEVATION 0 0 VWA=1350.-VNA
>ZA=(VWA+7814.85)/95.72 II W C CALCULATE ACCUMULATOR GAS PRESSURE o PA=PAZ*(VNAZ/VNA)**GAM z C CALCULATE SJ54 LOSS FACTOR GVKZ=.1 5 IF(TIME .LT, VOT1) THEN "1j VOF=TIMENOT1 CALL INTER(VOF.CVND,12,WOFCVCV) 0 GVK=GVKZ/(CVND*CVND)
" ELSE L" GVK=GVKZ MENDIF 0C CALCULATE CHECK VALVE DP z© VEL=Q/AREA AV2=38.3/(VEL*VEL) Li SINPHI=0.5*(SQRT(AV2**2+4.)-AV2) (contd.) cg DJ
(NCDE-AP.ZZ-0002(Q), Rev. 11, Form 2) CALCULATION CONTINUATION SHEET SHEET: 3 CALC NO.: S-2-SJ-MDC-1 394 REV: 4 REF: CONT'D ON SHEET: ORIGINATOR: DATE: REVIEWER: DATE: VERIFIER: DATE: Vijay Chandra July 8, 2005 James Murphy July 11, 2005 James Murphy July 11, 2005 Table 3.4 (contd.) IF (SINPHI .GE. SINPHM) SlNPHI=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. O)WRITE(1,1102) TIME,+(PA144.-14.7),
# Q*7.48*60.
ELSE IF(MOD((NSTEP+I 0), 100) .EQ. 0)WRITE(11102) TIME,+(PAI1 44.-14.7),
# Q'7.48"60.
ENDIF 102 FORvAT(F23.3,8F1 7.2) C UPDATE THE OLD VARIABLES Q=QQ VNA=VVNA IF(TIME .GT. 41,) STOP GO TO 31 END SUBROUTINE INTER(X,YN,XXYY) pDIMENSION 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-I))/ 7 z.< I (XX(J)-XX(J-1)) RETURN 2 CONTINUE
<F-- 3 WRITE(6,1) X,(XX(I),I=1 IN) 1 FORMAT(' BEYOND RANGE',GI0.4,5X,20G10.4)
RETURN 0 END Li 0 LfI Li LLJ al 0 (/) LU 0. D - -
(NC.DE-AP.ZZ-0002(Q), Rev. 11, Form 2) CALCULATION CONTINUATION SHEET SHEET: CALC NO.: S-2-SJ-MDC-1 394 REV: 4 REF: CONT'D ON SHEET: 5 ORIGINATOR: DATE: REVIEWER: DATE: VERIFIER: DATE: 1Vijay Chandra, July 8, 2005 James Murphy July 11, 2005 James Murphy July 11, 2005
- 4. Results All four loops were analyzed inldividually with their own specific data and geometrical input. For 21 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 21-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 22, 23, and 24 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 22-accumulator for the 60 degree check valve lift. Table 4.4 shows the time history of pressure decay and the discharge flow rate of 23-accumulator for the 60 degree check valve lift. Table 4.5 shows the time history of pressure decay and the discharge flow rate of 24-accumulator for the 60 degree check valve lift.
For all cases analyzed, the flow rate exceeded 3537 gpm (corresponding to 20 ft/s velocity In 0.394 ft aea pipe), the minimum flow rate required for full disk lift. Figure 4 shows the plots of pressure decay time history of 21 accumulator and Figure 5 shows the discharge flow rate time histories of 21 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 21-accumulator, the pressure decay time from 70 pslg to 35 pslg is 29.63 seconds. For 22-accumulator, the pressure decay time from 70 psig to 35 psig is 29.39 seconds. For 23-accumulator, the pressure decay time from 70 pslg to 35 pslg Is 29.64 seconds. (For 24-accumulator, the pressure decay time from 70 psig to 35 psig is 29.60 seconds. LD As per the recommendation of the saferty evaluation report docket No. 50-311 dated January 2, 2004
< (Relief Request RR S2-RR-03-V01 and RR S2-RR-03-V02) and docket Nos. 50-271 and 50-311 dated C) March 12, 1999, the acceptance criterion for the pressure decay time is 1.5 second less than the calculated 0pressure z decay time for the 60 degree check valve lift case.
Therefore, the valve passing acceptance criteria for the check valves are as follows: I<
<4 Acceptance criterion for pressure decay time for 21 loop check valves Is less than or equal to 28.13 seconds.
(V) Acceptance criterion for pressure decay time for 22 loop check valves is less than or equal to 27.89 7seconds. 0 Acceptance criterion for pressure decay time for 23 loop check valves is less than or equal to 28.14 V)
>seconds.
W" Acceptance criterion for pressure decay time for 24 loop check valves is less than or equal to 28.10 (.D seconds. U- "7 0 I Li oC/)
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(NC.DE-AP.ZZ-0002(Q), Rev. 11, Form 2) CALCULATION CONTINUATION SHEET SHEET: 3 5 CALC NO.: S-2-SJ-MDC-1 394 REV: 4 REF: *_CONT"D ON SHEET: _____ ORIGINATOR: DATE: REVIEWER: DATE: VERIFIER: DATE: V.lay Chandra July 8, 2005 James Murphy July 11, 2005 James Murphy Julyl 1, 2005 Table 4.1 21-Accumulator Pressure and Discharge Flow Rate Time Hi'story (Check Valve Maximum Lift = 60 Deg) Time Accumulator Flow Rate Pressure (Sec.) (Psig) (Gpm) 0.110 70.00 0.45 0.210 69.99 168.01 0.310 69.98 247.38 0.410 69.96 326.09 0.510 69.94 404,02 0.610 69.92 481.13 0.710 69.89 557.42 0.810 69.85 632.95 0.910 69.81, 707.78 1.010 69.77 799.29 1.110 69.72 919.97 1.210 69.67 1044.96 1.310 69.60 1169.76 1.410 69.53 1293.38 1.510 69.45 1415.48 1.610 69.37 1535.87 1.710 69.28 1654.40 1.810 69.18 1770.92 1.910 69.07 1883.96 2.010 68.96 1980.92 LUJ 3.010 67.65 2611.41 0 4$,010 66.10 3043.68 z 5.010 64.41 3348.11 T 3.010 62.66 3558.03 7.010 60.88 3715.94 8.010 59.12 3810.53 9.010 57.40 3865.63 0.010 55.73 3878.67 D 1.010 54.13 3864.44 2.010 52.60 3838.09 0 3.010 51.14 3801.88 4.010 49.75 3758.32 5,010 48.43 3707.48 0 1 6.010 47.18 3650.82 ry 27.010 45.98 3590.82 8.010 44.85 3531.12 0 219.010 43.77 3469.81 0.010 42.74 3404.57 M- 2 1.010 41.77 3339.87 U, 2.010 40.84 3276.83
~2 3.010 39.95 3215.52 2'4.010 39.11 3155.86 o C/) 25.010 38.30 3097.74 U- 26.010 2t 37.53 3041.09 n2 7.011 36.79 2985.82 m 2t8.011 36.08 2931.87 ca 2*9.011 35.40 2879.16> u -3 - AT Ti V E: t 2 9- 6 2 ge" '.
o 3(0.011 34.75 2827.63 / 0 31.011 34.12 2777.22 U- 3 2.011 33.52 2727.87 (contd.) c-n
(NC.DE-AP.ZZ-0002(Q), Rev, 11, Form 2) CALCULATION CONTINUATION SHEET SHEET: 3 CALC NO.: S-2-SJ-MDC-1394 REVi 4 REF: CONT'D ON SHEET: ORIGINATOR: DATE: REVIEWEFR DATEM VERIFIER: DATE: Vijay Chandra July 8, 2005 James Murphy July 11, 2005 James Murphy July 11, 2005 Table 4.1 (contd.) 33.010 32.95 2679.54 34.010 32.39 2632.18 35.010 31.86 2585.73 36.010 31.34 2540.17 37.010 30.85 2495.44 38.010 30.37 2451.52 39.009 "29.91 2408.36 40.009 29.46 2365.93 41.009 29.04 2324.21 w .-- CD cý Z 0 uJ w Li Li C2: 0 U) m U) Li Lij
(NC.DE-AP.ZZ-0002(Q), Rev. 11, Form 2) CALCULATION CONTINUATION SHEET SHEET: 37 CALC NO.: S-2-SJ-MDC-1 394 REV: 4 REF: _CONT'D ON SHEET: 3 ORIGINATOR: DATE: REVIEWER DATE: VERIFIER: DATE: Vijay Chandra July 8, 2005 James Murphy July 11, 20,05 James Murphy July 11, 2005 Table 4.2 21-Accumulator Pressure and Discharge Flow Rate Time History (Check Valve Free) Time Accumulator Flow Rate Pressure (Sec.) (Psig) (Gpm) 0.110 70.00 0.45 0,210 69.99 168.01 0.310 69.98 247.38 0.410 69.96 326.09 0.510 69.94 404.02 0.610 69.92 481.13 0.710 69.89 557.42 0.810 69.85 632.95 0.910 69.81 707.78 1.010 69.77 799.29 1.110 69.72 919.97 1.210 69.67 1044.96 1.310 69.60 1169.76 1.410 69.53 1293.38 1.510 69.45 1415.48 1.610 69.37 1535.87 1.710 69.28 1654.40 1.810 69.18 1770.92 1.910 69.07 1883.96 2.010 68.96 1980.92 W 3.010 67.64 2671.45 Z 4.010 66.03 3205.65 5.010 64.23 3620.42 6.010 62.33 3907.39 7.010 60.39 4134.50 z
< 8,010 58.44 4283.37 9.010 56,53 4381.45 10.010 54.68 4420.75 < 11.010 52.91 4419.55 12.010 51.22 4398.77 13.010 49.61 4363.09 0 14.010 48.08 4315.18 15.010 46.64 4255.73 16.010 45.27 4186.41 c~f17.010 43.98 4111.06 18.010 42.76 4035.30 z 19.010 41.61 3956.84 L7 20.010 40.51 3872.02 00 21.010 39.48 3787.14 LW 22.010 38.51 3704.40 23.010 37.58 3624.05 24.010 36.70 3546.03 - 25.010 35.87 3463.98 w 26.010 35.08 3374.60 27.011 34.33 3284.57 28.011 33.62 3195,92 0 29.011 32.94 3109.18 V) 30.011 32.30 3024.46 31,011 31.69 2941.69 (contd.)
WE LL-
(NC.DE-AP.ZZ-0002(Q), Rev. 1i, Form 2) CALCULATION CONTINUATION SHEET SHEET: 3 CALC NO.: S-2-SJ-MDC-1 394 REV: 4 REF: CONT'D ON SHEET: __,,_ ORIGINATOR: DATE: REVIEWER: DATE: VERIFIER, DATE: Vijay Chandra July 8, 2005 James Murphy July 11, 2005 James Murphy July 11, 2005 Table 4.2 (contd.) 32.011 31.12 2860.81 33.010 30.57 2781.72 34.010 30.04 2704.35 35.010 29.54 2628.60 36.010 29.07 2554.42 37.010 28.61 2481.73 38.010 28.18 2410.49 39.009 27.77 2340.64 40.009 27.38 2272.13 41.009 27.00 2204.94 0 0 (.D 7 F-- z* 0 0 c/) U-w, cf) H-0t LU-w1 Oj m, U-i0* tif U-2 0~~ 0 -
(NC.DE-AP.ZZ-0002(Q), Rev. 11, Form 2) CALCULATION CONTINUATION SHEET SHEET: CALC NO.: S-2-SJ-MDC-1394 REV: 4 REF: _CONT'D ON SHEET: _ ORIGINATOR: DATE: REVIEWER: DATE: VERIFIER: DATE: Vijay Chandra July 8, 2005 James Murphy July 11, 2005 James Murphy July 11, 2005 Table 4.3 22-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 69.99 174.66 0.310 69.98 257.14 0.410 69.96 338.88 0.510 69.94 419.78 0.610 69.92 499.79 0.710 69.88 578.93 0.810 69.85 657.28 0.910 69.81 734.92 1.010 69.76 846.71 1.110 69.71 975.61 1.210 69.65 1106.05 1.310 69.58 1235.63 1.410 69.51 1363.75 1.510 69.43 1490.15 1.610 69.34 16141.65 1.710 69.24 1737.09 1.810 69.14 1857.32 1.910 69.03 1963.65 2.010 68.91 2054.49 z 3.010 67.57 2680.72 4.010 65.98 3116.36 5.010 64.26 3417.99 6.010 62.48 3631.84 z 7.010 60.67 3781.50 8.010 58.89 3874.16 D 9.010 57.15 3919.19 I 10.010 55.47 3924.65 11.010 53.87 3904.52 12,010 52.33 3876.93 13.010 50.87 3836.26 0 14.010 49.48 3789.36 15.010 48.16 3734.00 16.010 46.90 3673.82 17.010 45.71 3612.49 (contd.) z U-w,
(NC.DE-AP.ZZ-0002(Q), Rev. 11, Form 2) CALCULATION CONTINUATION SHEET SHEET: I ( CALC NO.; SS-2-SJ-MDC-1394 REV: 4 REF: CONT'D ON SHEET: DATE: REVIEWER: DATE: VERIFIER: DATE. ORIGINATOR: Vijay Chandra July 8, 2005 James Murphy July 11, 2005 ,James Murphy July 11, 2005 Table 4,3 (contd.) Time Accumulator Flow Rate Pressure (Sec.) (Psig) (Gpm) 18.010 44.58 3550.49 19.010 43.51 3484.01 20.010 42.48 3416.84 21.010 41.51 3351.34 22.010 40.59 3287.68 23.010 39.70 3225.78 24.010 38.86 3165.53 25.010 38.06 3106.85 26.010 37.29 3049.65 27.011 36.56 2993.85 28.011 35.85 2939.37 29.011 35.18 2886.15 S0R - -3 5 f-I At AIT1m E~ C 13, 2-~c 30.011 34.53 2834.11 / 31.011 33.91 2783.20 32.011 33.31 2733.37 33.010 32.74 2684.56 34.010 32.19 2636.72 35.010 31.65 2589.81 36.010 31.14 2543.78 37.010 30.65 2498.60 0 38.010 30.18 2454.23 U39.009 29.72 2410.63 40.009 29.28 2367.77
. 41.009 28.85 2325.62 Z
z Ln 0 0 (/3 0a_ Li 0 zl. 0~ 012 0~c
(NC.DE-APZZ-0002(Q), Rev. 11, Form 2) CALCULATION CONTINUATION SHEET SHEET: CALC NO.: S-2-SJ-MDC-1 394 REV: 4 REF: CONT'D ON SHEET: Z# 2. ORIGINATOR: DATE: REVIEWER: DATE: VERIFIER: DATE: Vijay Chandra July 8, 2005 James Murphy July 11, 2005 James Murphy July 11, 2005 Table 4.4 23-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 69.99 161.23 0.310 69.98 237.45 0.410 69.97 313.07 0.510 69.95 387.99 0.610 69.92 462.15 0.710 69.89 535.55 0.810 69.86 608.24 0.910 69.82 680.28 1.010 69,78 753.85 1.110 69.73 864.22 1.210 69.68 985.45 1.310 69.62 1107.11 1.410 69.55 1227.76 1.510 69.48 1347.04 1.610 69.40 1464.78 1.710 69.31 1580.84 1.810 69.22 1695.09 1.910 69.12 1807.43 2.010 69.01 1916.22
)3.010 67.73 2553.84 (3 4.010 66.21 2986.91 5.010 64.54 3298.69 6.010 62.81 3510.03 Q9 7.010 61.04 3678.98
- 8.010 59.29 3780.13
< 9,010 57.57 3847.79 (1) 10.010 55.90 3871.87
- D 11.010 54.30 3866.42 12.010 52.76 3840.81 13.010 51.29 3810.73 14.010 49.90 3768.92 15.010 48.57 3723.05 016.010 47.30 3669.73
>17.010 46,09 3612.04 Q18.010 44.95 3551.94 19.010 43.86 3492.55 0 20.010 42.82 3431.58 >- 21.010 41.84 3366.90 22.010 40.90 3302.95 LU 23.010 40.00 3240.68 24.010 39.15 3180.08 o25.010 38.34 3121.07 L_ 26.010 37.56 3063.56 L27.011 36.81 3007.46 c28.011 36.10 2952.70 25~et j- eeC.
C29,011 o© 30.011 35.41 34.76 2899.22 2846.93 2> us uZ z S5r 4 A C- 31.011 34.13 2795.80 w32.011 33.52 2745.75 (contd.) G') LU W3
(NC.DE-AP.ZZ-0002(Q), Rev. 11, Form 2) CALCULATION CONTINUATION SHEET SHEET: 42.- CALC NO.: S-2-SJ-MDC-1394 REV: 4 REF: CONTD ON SHEET:._--_ ORIGINATOR: DATE: REVIEWER: DATE VERIFIER: DATE: Vijay Chandra July 8, 2005 James Murphy July 11, 2005 James Murphy July 11, 2005 Table 4.4 (contd.) 33.010 32.94 2696.73 34.010 32.391 2648.70 35.010 31.85 2601.60 36.010 31.33 2555.41 37.010 30.83 2510.06 38.010 30.35 2465.54 39.009 29.89 2421.79 40.009 29.44 2378.79 41,009 29.01 2336.51 LLI (9,' 0D z-- r-z 00 V/) U-U--
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(NC.DE-AP.ZZ-0002(Q), Rev. 11, Form 2) CALCULATION CONTINUATION SHEET SHEET: CALC NO.: S-2-SJ-MDC-1 394 REV: 4 REF: CONT'D ON SHEET: ORIGINATOR: DATE: REVIEWER: DATE: VERIFIER: DATE: Vijay Chandra July 8, 2005 James Murphy July 11, 2005 James Murphy July 11, 2005 Table 4.5 24-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 69.99 168.04 0.310 69.98 247,43 0.410 69.96 326.16 0.510 69.94 404.11 0.610 69.92 481.23 0.710 69.89 557.54 0.810 69.85 633.09 0.910 69.81 707.94 1.010 69.77 799.00 1.110 69.72 920.50 1.210 69.67 1046.16 1.310 69.60 1171.48 1.410 69.53 1295.56 1.510 69.45 1418.09 1.610 69.37 1538.89 1.710 69.28 1657.81 1.810 69,18 1774.71 1.910 69.07 1888.45
- 0) 2.010 68.96 1985.86 o 3.010 67.65 2613.91 4.010 66.10 3046.21 5.010 64.41 3350.87 6.010 62.65 3560.68 7.010 60.87 3719.30 z 8.010 59.11 3813.94 U) 9.010 57.39 3869.59 10.010 55.72 3882.83
< 11.010 54.12 3868.77 H- 12.010 52.59 3842.28 13.010 51.13 3806.28 14.010 49.74 3762.63 15.010 48.42 3711.87 w
16.010 17.010 47.16 45.97 3655.18 3595.06 18.010 44.83 3535.26 z 19.010 43.75 3474.01 20,010 42.72 3408.67 21.010 41.75 3343,77
> 22.010 40.82 3280.56 23.010 39.93 3219.08 0 24.010 39.08 3159.25 L 25.010 38.28 3100.97 "1 26.010 37.50 3044.17 M 27.011 36.76 2988.75 V) 28,011 36.06 2934.65 o 29.011 35.38 2881.80 3 5T
(_ 30.011 34.73 2830.13 L" 31.011 34.10 2779.58 (contd.) w* U) 0* iD
(NC.DE-AP.ZZ-0002(Q), Rev. 11, Form 2) CALCULATION CONTINUATION SHEET SHEET: CALC NO.: S-2-SJ-MDC-1394 REV: 4 REF: CONT'D ON SHEET: ORIGINATOR: DATE: REVIEWER: DATE: VERIFIER: DATE: Vijay Chandra July 8, 2005 James Murphy July 11, 2005 James Murphy July 11, 2005 Table 4.5 (contd.) 32.011 33.50 2730.11 33.010 .32.92 2681.65 34.010 32.37 2634.15 35.010 31.84 2587.58 36.010 31.32 2541.90 37.010 30.83 2497.05 38.010 30.35 2453.01 39.009 29.89 2409.73 40.009 29.44 2367.19 41.009 29.01 2325.36 LUl (-Z z
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USER RESPONSIBLE FOR VERIFYING REVISION, STATUS AND CHANGES 21 Accumulator Discharge Flow Rate 5000 1111HHHHH 4500 tILLL ~I1~ :LLfLL I I A I I I I A T- --F- I T -F- I I kt- .ý 4000 tJ7 3500 E 3000 _hMZ 11 I, v I I 2500 0 U.2000 lii-'WViIII~ 1500 I ~~ 111fA ~ ~IIILI i rw 1000 t I LLL IIIt L I4 I_ 500 -i ~~~1 0 0 5 10 15 25 30 35 40 45 time (sec)
USER RESPONSIBLE FOR VERIFYING REVISION, STATUS AND CHANGES FiIC7 L 21 Accumulator Pressure 75-LA C-55.----------- ii- i",-- --- - - "- 3 U ---- ------- "-- - -- I 45---- _ " 35-- 4-9 25 15 [ 0 5 10. 15 20 .25 30 35 40 45 time (sec)
(NC.DE-AP.ZZ-0002(Q), Rev. 11, Form 2) CALCULATION CONTINUATION SHEET SHEET: 47 CALC NO.: S-2-SJ-MDC-1394 REV: 4 REF: ICONT'D ON SHEET: ____ ORIGINATOR: DATE: REVIEWER: DATE: VERIFIER: DATE: Vijay Chandra July 8, 2005 James Murphy July 11, 2005 James Murphy July 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 21 loop check valves is less than or equal to 28.13 seconds. Acceptance criterion for pressure decay time for 22 loop check valves is less than or equal to 27.79 seconds. I I. ... ; I.... Acceptance criterion for pressure decay time for 23 loop check valves Is less than or equal to 28.14 seconds. Acceptance criterion for pressure decay time for 24 loop check valves Isless than or equal to 28.10 seconds.
- 8. Documents Affected Procedure S2.OP-ST.SJ-0006 will be revised after this calculated Isissued and approved by NRC.
- 7. Design Margin The calculation established the acceptance criterion for the pressure decay time to ascerain the valve functionality. Adesign margin is not applicable for this calculation.
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