ML15244A902

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CFT Check Valves CF-11 & CF-13 Evaluation (GL 89-04) for Oconee Nuclear Station Unit 1.W/68 Flow Diagrams
ML15244A902
Person / Time
Site: Oconee Duke Energy icon.png
Issue date: 01/15/1992
From:
DUKE POWER CO.
To:
Shared Package
ML15222A196 List: ... further results
References
GL-89-04, GL-89-4, NUDOCS 9211240058
Download: ML15244A902 (24)


Text

1fr 010 H79)

FORM 101.1 REVISION 13 CERTIFICATION OF ENGINEERING CALCULATION STATION AND UNIT NUMBER C1 /

'WITLE OF CALCULATION C, -

c/

- //

c CALCULATION NUMBER c

/:'

ORIGINALLY CONSISTING OF:

PAGES

._THROUGH

/E' TOTAL ATTACHMENTS t

TOTAL MICROFICHE ATTACHMENTS TOTAL VOLUMES TYPE I CALCULATION/ANALYSIS YES O NO N TYPE I REVIEW FREQUENCY THESE ENGINEERING CALCULATIONS COVER QA CONDITION ITEMS. IN ACCORDANCE WITH ESTABLISHED PROCEDURES, THE QUALITY HAS BEEN ASSURED AND I CERTIFY THAT THE ABOVE CALCULATION HAS BEEN ORIGINATED, CHECKED OR APPROVED AS NOTED BELOW:

ORIGINATED BY

-- DATE CHECKED BY DATE__

APPROVED BY

)

DATE S SUED TO TECHNICAL SERVICES DIVISION DATE ii/l r7

-CEIVED BY TECHNICAL SERVICES DIVISION aiL DATE) f5/DT MICROFICHEATTACHMENT LIST: O Yes

%No SEE FO6 101.4 REV.

CALCULATION PAGES (VOL)

ATTACHMENTS (VOL)

VOLUMES ORIG CHKD APPR DASE REVISED DELETED ADDED REVISED DELETED ADDED DI LETED ADDED DATE DATE DATE RECD

________DATE I NFO MAT ON NLY 9211240058 921116 Fi PDR ADOCK 05000269 P

PDR

OSC-4500 Performed CGA Date: 9/11/91 Page 1

1.0 PROBLEM

Generic Letter 89-04 requested that all active check valves which are required to open during accident condition(s) must be tested to the expected maximum full flow. However, for some check valves, this is impractical. Check valves 1CF-11 and ICF-13 are impractical to test at design accident condition. These valves are designed (emergency condition) to pass 31,300 gpm provided the DP=77.1 psi at 110 deg.F (Ref. OSC-779). The minimum flow coefficient (Cv), derived from this criteria, is 3549.25. This flow coefficient must be met or exceeded in order to consider any flow test to be acceptable.

This calculation will document that the flow test performed (Attachment #1),

verified the check valves can pass the required flow at accident condition.

(11)

OSC-4500 Performed CGA Date: 9/11/91 Page 2 2.0 RELATION TO NUCLEAR SAFETY:

This calculation is QA Condition 1. The CF system is required to flood the core during a LOCA.

N0

OSC-4500 Performed CGA Date: 9/11/91 Page 3 3.0 DESIGN METHOD:

The design flowrate and Dp for the check valves will be used to determine the minimum flow coefficient (Cv) at design condition(s). This Cv will be used as the reference flow coefficient since this value is essentially constant at full flow.

From the test data, average time values of pressure drop, velocity head, and elevation difference will be calculated.

Core Flood Tank flow diagram and piping drawings will be reviewed to determine line loss coefficients and pressure drop. These coefficients will be inputted into the calculation along with average values determined from the test data to determine the head loss across the check valves.

The calculated head loss across the check valve must be less than the expected maximum head loss at test condition; if this the case the test has verified the check valve was fully stroked open and is capable of passing maximum flow.

714

OSC-4500 Performed CGA Date: 9/11/91 Page 4 4.0 APPLICABLE CODES AND STANDARD:

ANSI N45.2-11 0

0D

OSC-4500 Performed CGA Date: 9/11/91 Page 5 5.0 DESIGN INPUTS:

5.1 ANSI N45.2-11 has been reviewed and all applicable inputs are addressed in the appropriate sections of the calculation.

5.2 The check valves were designed to suit normal operating condition which is primarily Core Flood Tank to RCS isolation. However, it is also required to operate under emergency condition. (Ref. OSC-779) 5.3 No instrument inaccuracies will be considered in the calculation.

5.4 Form losses due to elbows, fittings, etc. will not be entered in the.calculation to determine line losses.

5.6 The flow test was performed by pressurizing the CFT(s) and discharging the.contents to RCS with the transfer canal filled. The pressurizer level indication was used to correlate transfer canal level as shown in the data sheets (Att. #1). At the time of the test the pressurizer level stayed essentially constant, for CFT "A" test the initial pressurizer level indicated 308"1, after the test the final level indicated 308.8"; for CFT "B" initial and final were 300.3" and 301" respectively.

5.7 The test data shows that linear regression in the curve occurred at time T=6sec to T=10sec. The calculation will focus on these data'points as the only valid points in the test because this is 'when the test and system performance is at steady state.

5.8 To determine actual Transfer Canal level during shutdown/refueling, Design Engineering requested Tom Couto (Unit-1 Operating Engineer) to correlate pressurizer level to transfer canal level.

  • Transfer Canal Full = 0" SFP level = Pressurizer 370" 0" SFP level = 840' (Ref. 8.10)
  • NOTE: Ref. Filling and Draining Transfer Canal Procedure OP/l/A/1102/15

OSC-4500 Performed CGA Date: 9/11/91 Page 6 6.0 FSAR CRITERIA:

FSAR Chapter 6.3.2.2.3 states that the Core Flooding System provides core protection continuity for intermediate large Reactor Coolant System (RCS) pipe failures. It automatically floods the core when the RCS pressure drops below 600 psig. The combined volume in the two tanks is sufficient to re-cover the core assuming no liquid remains in the reactor vessel following the LOCA.

OSC-4500 Performed CGA Date: 9/11/91 Page 7

7.0 ASSUMPTIONS

7.1 Assume piping is clean. This a good assumption since the water in the core flood tank is closely controlled.

7.2 In the Design Input form losses are not to be considered, this is conservative, because with these losses the head loss across the check valves will be lower (see General Equation in the calculation).

7.3 Assume the increase level in the transfer canal is a negligible and should not add to any significant back pressure that could affect the over all result of the calculation. This is valid since the total level increase in both test cases is incrementally small as shown in the data sheets.

-0

OSC-4500 Performed CGA Date: 9/11/91 Page 8

8.0 REFERENCES

8.1 Crane Technical Paper No.410 (24th printing-1988) 8.2 OM-201-2454 Rev.D3 Core Flood Tank Instruction Manual 8.3 OM-245-0001-001 Rev.DB 1CF-11, 1CF-12, 1CF-13 & 1CF-14 manufacturer's drawing.

8.4 OM-201-0163 Rev.DD 1CF-1 & 1CF-2 manufacturer's drawing.

8.5 OFD-102A-1.3 Rev.7 Unit-1 Core Flood Flow Diagram 1

8.5 O-478A Rev.38 8.6 O-478B Rev.34 8.7 O-479A Rev.44 8.8 O-479B Rev.52 8.9 O-69D Rev.15 8.10 OFD-104-1.1 Rev.12 8.11 0-480 Rev.37

.0

OSC-4500 Performed CGA Date: 9/11/91 Page 9

9.0 CALCULATION

9.1 Design

Cv calc. for 1CF-11,12,13,&14

  • Q = 31,300 gpm
  • (Ref. OSC-779)
  • Dp= 77.1 @ 110 F (HLchek)

Cv = Q (p,

/ Dp {6 2.4})-m/

(Ref. 8.1) where p110p Density of water @ 110 F VuoF =

Specific Volume @ 110 F Pno1F 1/V11F = 1/.016165 = 61.86 #/ft'

= 31,300 (61.86/77.1{62.4})m"2 Cv = 3549.25 This is the Minimum Cv @ Full Flow NOTE:

All Cv resulting from the calculation below (9.3

& 9.4),

as derived from Qvg(l/HLvchek)1/2 must be greater than 3549.25.

.Qvg

= Average flowrate at the test points HLychak

= Head Loss for each valve (1CF-11,12,13,&14)

OSC-4500 Performed CGA Date: 9/11/91 Page 10 9.2 General Equations:

Head Loss calc. for lCF-11&12 AND 13,&14 (HLvchk)

PJ+V2 /2g+Z P2+V 2 2/2g+Z 2+Hf (Ref. 8.1)

P1

=

PavCrpressure

= CFT pressure over time (ft)

V1

= Velocity of fluid in CFT = 0 Zi

= Zavg.CFrIevel + bottom tap EL.= CFT level over time P2

= Transfer Canal level (ft)

V2

= Velocity of fluid into the RCS Z2

= Discharge El. (CFT Disch. nozzle El.) = 811'6" Hf

=

Sum of the following losses(HLpipe, HLvgate 2 HLchck) g

= 32.2 ft/sec therefore; 2 HLv check = DP+DV+D Z-HL pipe-HLv gate DP = P-P2 DV = V1 2/2g -

V2 2/2g DZ =

Z, Z2 HLpipe

= Piping Losses (Ref. 8.5 thru 8.8)

HLvgat= Valve Losses (Ref. 8.4) 0ll

c.V-T~ "

Z ~5.3 3 -F 10 7-3.3 Z~

H~

Ul kD O CF F

(D 0FCF-

OSC-4500 Performed CGA Date: 9/11/91 Page 12 9.3 CALC:

CFT "A" Qavg = (Tank level change) from T=7sec toT=9secX CFT Area x 448.8 Tank level change =

ft/sec CFT Area

=

67.96 sg.ft (Ref. 8.2) 448.8

=

7.48 gal/cu.ft x 60 sec/min Qavg = {(10.49 ft.-9.74 ft.)/2sec}(67.96)(448.8)

(Att. #1)

Qavg = 11438 gpm or 25.49 ft3/sec V

= Velocity of fluid in CFT = 0 V2

= Velocity of fluid into the RCS = Qavg /

A D = 14" sch.140 = 11.50" =.9583 ft A = 3.14 D2 4

=.72 ft2 V2

= (25.49 ft3/sec) /

.72 ft2

= 35.39 ft/sec DV = V1 2/2g V2 2/2g

= -19.44 ft.

P1 Pavg.Crpressure = CFT pressure over time (ft) initial Vinitial PT=7se VT=7se c T=8sec vT=8sec

  • PT=xsee VT=xsee Pa1 al 1 =73.70 psig (Att. #1) vnial = CFT Total Vol. -

CFT Liquid Vol.

= 1410 ft3 -

(12.117 ft)(67.96 ft

2)

(Ref. 8.2, Att. #1)

= 586.53 ft3 PT=7sec

= (73.70) (586.53) /{1410 -

(10.49)(67.96)}

62.01 psi vT=7see

= 1410 -

(10.94)(67.96) = 666.52 PT8sec

= (64.85)(666.52) /{1410 -

(10.11)(67.96)}

= 59.79 vTg8s

= 722.92 PT=9se

= (59.79)(722.92) / {1410 -

(9.74)(67.96)}

= 57.78

OSC-4500 Performed CGA Date: 9/11/91 Page 13 CFT "A" VT=9s

748.07 Pavg.CFpressure

(62.01 + 59.79 + 57.78)

/

3

= 59.86 or 138.28 ft(assume 68 F/Density=62.4)

P2

= Transfer Canal level (ft) = 23.33 (Ref. 8.9, 8.10 &

Design Input 5.8)

NOTE: The pressure in the Transfer Canal is a function of level above the center line of the CFT disch. nozzle (811'6"). When the Pressurizer is full 370" level, the.elevation in the transfer canal is 840'. During 7

the CFT "A" test the Pressurizer level was essentially constant @ 308", this is equivalent to 834.83' in transfer canal elevation (as derived below).

Therefore P2 is equal to 834.83 -

811.5 =

23.33 ft.

Transfer Canal level -

840 -

(370-308)/12 = 834.83 DP = P1 -

P2

= 138.28 -

23.33 = 114.95 ft Z

= Zavg.arIevel + bottom tap EL.

(Att.#1 & Ref.8.6)

=

(ZT=7see

+

ZT=as.

+

ZT=9se)

/

3 + 790'3 1/2"

= (10.49 + 10.11 + 9.74) / 3 + 790'3 1/2"

= 800.41 ft Z

= Discharge El. (CFT Disch. nozzle El.) = 811'6" (Ref.8.8)

DZ =Z Z2= -11.09 ft HLpipe

= f{L/D} {V2/2g}

(Ref.8.1) f

= ft =.013 L = 98.64 ft (Ref. 8.5 thru 8.8)

D = 14" sch.140 =11.5" =

.96 ft V = V2 = 35.39 ft/sec HO L

= 25.98 ft.

OSC-4500 Performed CGA Date: 9/11/91 Page 14 CFT "A" HLvgate = K {V2/2g}

(Ref.8.1, 8.4)

K = K2 = [K1 + Sin 0/2 {.8(1-B 2)+2.6(1-B 2) 2]

B4 K, = 8f, = 8(.013) =.104 Assume 9 = 450 B = di / d2

=.89 B2=.79

& B 4=.63 where; d=

10.19" =.85 ft (Ref.8.4) d-11.5"

=.96 ft K2 =.34 V =Qavg/A = (25.49 ft 3/sec)

/ (3.14{.85}2)/4 A = valve seat area V = 44.92 ft/sec HLvgas =

.34(44.92)

/ 64.4 = 10.65 ft 2 HLvcheck

=

DP+DV+DZ-HLpipeHLv gate HLychak = (114.95 19.44 -11.09 25.98 10.65) / 2

= 23.90 ft

= 10.35 psi To verify if Qavg was adequate to fully open the check valve the above head loss must result in a Cv greater than 3549.25.

Cv =

Qavg(l/HLvcheck) 1/2

=

11438 gpm (1/10.35 psig)U2

= 3556.25 THIS IS GREATER THAN THE REFERENCE Cv, THEREFORE THE FLOW TEST VERIFIED THE CHECK VALVE CAN PASS FULL FLOW

OSC-4500 Performed CGA Date: 9/11/91 Page 15 9.4 CALC:

CFT "B" Qvg (Tank level change)rromr=8seto=1osex CFT Area x 448.8 Tank level change =

ft/sec CFT Area

=

67.96 sg.ft (Ref. 8.2) 448.8

=

7.48 gal/cu.ft x 60 sec/min Qavg = {(11.35 ft.-10.70 ft.)/2sec}(67.96)(448.8)

(Att. #1)

Qavg,= 9913 gpm or 22.09 ft3/sec V

= Velocity of fluid in CFT = 0 V2

= Velocity of fluid into the RCS = Q,,g / A D = 14" sch.140 = 11.50" =.9583 ft 0A

= 3.14 D2 / 4

=

.72 ft2 V2

= (22.09 ft3/sec) /

.72 ft2

= 30.68 ft/sec DV = V1 2/2g -

V2 2/2g = -14.62 ft.

P1 P avg.CFrpressum = CFT pressure over time (ft)

-initial Vinitial

= PT=8sec VT=8see PT= 9sec VT=9sec PT=xse VT=xsec P-jiaIa = 42.40 psig (Att. #1) vai, = CFT Total Vol.

CFT Liquid Vol.

= 1410 ft' (12.58 ft)

(67.96 ft 2)

(Ref. 8.2, Att. #1)

= 555.06 ft PTasc

=

(42.40)(555.06) / {1410 -

(11.34)(67.96)}

= 36.81 psig VT see

= 1410 -

(11.34)(67.96) = 639.34 PT9sec

= (36.81)(639.34) / {1410 -

(11.04)(67.96)}

35.67 V. 9,,

= 659.72 PT Iose

=

(35.67)(659.72) / {1410 -

(10.70)(67.96)}

34.46

OSC-4500 Performed CGA Date: 9/11/91 Page 16 CFT "B" vT9,,

=

682.83 Pavg.Crpressure = (36.81 + 35.67 + 34.46) / 3

= 35.65 or 82.34 ft (assume 68 F/Density=62.4)

P2

= Transfer Canal level (ft) = 22.69 (Ref. 8.9, 8.10 &

Design Input 5.8)

NOTE: The pressure in the Transfer Canal is a function of level above the center line of the CFT disch. nozzle (811'6"). When the Pressurizer is full 370", level the elevation in the transfer canal is 840'. During the CFT "B" test the Pressurizer level was essentially constant @ 300.3", this is equivalent to 834.19' in transfer canal elevation (as derived below).

Therefore P2 is equal to 834.19 -

811.5 =

22.69 ft.

Transfer Canal level = 840 -' (370-300.3)/12 834.19 DP = P1 -

P2

= 82.34 -

22.69 = 59.65 ft Zi

= Zavg. cpr level + bottom tap EL.

(Att.#1 & Ref.8.6)

=

(ZT=s

+

ZT=.,

+ ZT-ose)

/ 3 + 811'1 9/16"

= (11.34 + 11.04 + 10.70) /

3 + 811'1 9/16"

= 822.16 ft Z2

= Discharge El. (CFT Disch. nozzle El.) = 811'6" (Ref.8.8)

DZ =

Z-Z 2

= 10.66 ft HLpipe

= f{L/D}{V 2 /2g}

(Ref.8.1) f

= ft =.013 L = 71.71 ft (Ref. 8.5 thru 8.8)

D = 14" sch.140 =11.5" =.96 ft V = V2 = 30.68 ft/sec HLpip, = 14.19 ft.

OSC-4500 Performed CGA Date: 9/11/91 Page 17 CFT "B" HLvgate = K {V2/2g}

(Ref.8.1, 8.4)

K = K2 =

[KI + Sin 0/2 {.8(1-B 2)+2.6(1-B2) 2]

B4 K, = 8ft = 8(.013) =.104 Assume 0 = 450 B = d, / d2 =.89 B2=.79 B4=.63 where; di = 10.19" =

.85 ft (Ref.8.4) d2 = 11.5"

=.96 ft K2

.34 V = Qvg/A = (22.09 ft 3/sec) /

(3.14{.85}2) /4 A = valve seat area V = 38.93 ft/sec HLv gate =

.34(38.93)2 / 64.4 = 8.00 ft 2 HLvcheck = DP+DV+DZ-HL Pip-HLv gate C

HLvchak = (59.65 -

14.62 + 10.66 -

14.19 8.00) / 2

= 16.75 ft = 7.25 psi To verify if Qavg was adequate to fully open the check valve the above head loss must result in a Cv greater than 3549.25.

Cv =

Qg (1/HLv check) 1/2

=

9913 gpm (1/7.25 psig)1/2

= 3681.49 THIS IS GREATER THAN THE REFERENCE Cv, THEREFORE THE FLOW TEST VERIFIED THE CHECK VALVE CAN PASS FULL FLOW

OSC-4500 Performed CGA Date: 9/11/91 Page 18

10.0 CONCLUSION

The flow test is considered a valid verification that the valves can pass the required flow at accident condition.

This verification is valid for CF-11 & 12 and CF-13 & 14.

Unit 1 CF Tank A and B Level Change 1CF-11 Flow Rate Is 11,177 gpm 1CF-13 Flow Rate Is 9,381 gpm 14-B 3ginr Ing a Rog ressi m Tank 'A" ErmI of F egre slan Tank B 6

4 12

-TT-rrr n m r t i

I ;I II ti

-rr-r 1T 11 Tr TTT!TTt T

T-T F

V 0

2 4

6 8

10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 Tim (sec.)

Core Flood Tank 'A' Page 1 of 2 Clock Time Elapsed time

'A' Volts

'A" Level A Tank Linear 00-09:15:37.453 0

8.655 12.1170 Regression Output:

00:09:15:37.953 0.5 8.639 120946 Constant 13.0488089 00.09:15:38.453 1

8.564 11.9896 Std Err of Y Est 0.00578218 00:09:15:38.953 1.5 8.574 12.0036 R Squared 0.99988384 00.09:15:39.453 2

8.536 11.9504 No. of Observations 9

00:09:15:39.953 2.5 8.475 11.8650 Degrees of Freedom 7

00:09:15:40.453 3

8.393 11.7502 00:09:15:40.953 3.5 8.319 11.6466 X Coefficient(s)

-0.366473333333 ft/sec 00:09:15:41.453 4

8.223 11.5122 Std Err of Coef.

0.00149295134 00.09:15:41.953 4.5 8.124 11.3736 00109:15:42.453 5

8.001 11.2014 Flow - Ft/sec. x 67.96 sq. ft. x 7.48 gal/cu. ft. x 60 sectmin 00.09:15:42.953 5.5 7.885 11.0390 0009:15:43.453 6

7.752 10.8528 Flow -

11178 gpm 00.09:15:43.953 6.5 7.616 10.6624 00.09:15:44.453 7

7.494 10.4916 00.09:15:44.953 7.5 7.357 10.2998 Note: Regression based on seconds 6 through 10 00.09:15:45.453 8

7.224 10.1136 00.09:15:45.953 8.5 7.093 9.9302 00-09:15:46.453 9

6.959 9.7426 00-09:15:46.953 9.5 6.835 9.5690 00.09:15:47.453 10 6.708 9.3912 During the test the following beginning/ending pressures 00-09:15:47.953 10.5 6.589 9.2246 were noted:

00.09:15:48.453 11 6.469 9.0566 Beginning Ending 0009:15:48.953 11.5 6.354 8.8956 Press. Ch. 1.

73.70 22.70 00,09:15:49.453 12 6.242 8.7388 Press. Ch. 2 75.20 24.00 00.09:15:49.953 12.5 6.132 8.5848 00.09:15:50.453 13 6.025 8.4350 0009:15:50.953 13.5 5.92 8.2880 00.09:15:51.453 14 5.815 8.1410 PZR Level(A1717) 308.00 308.80 00.09:15:51.953 14.5 5.19 8.0066 00:09:15:52.453 15 5.62 7.8680 00-09:15:52.953 15.5 5.521 7.7294 0009:15:53.453 16 5.436 7.6104 00.09:15:53.953 16.5 5.343 7.4802 00.09:15:54.453 17 5.259 7.3626 00.09:15:54.953 17.5 5.174 7.2436 00.09:15:55.453 18 5.097 7.1358 00:09:15:55.953 18.5 5.016 7.0224 00-09:15:56.453 19 4.936 6.9104 0009:15:56.953 19.5 4.858 6.8012 00:09:15:57.453 20 4.782 6.6948 00.09:15:57.953 20.5 4.709 6.5928 00.09:15:58.453 21 4.638 6.4904 00.09:15:58.953 21.5 4.567 6.3938 00.09:15:59.453 22 00-.09:15:59.953

.22.5 00-09:18:00.453 23 00.09:16:00.953 23.5 4.287

&0018 00-.09:16:01.453 24 4.255 5.9570 00.0:1:01.953 24.5 4.196 5.8744

Core Flood Tank "A' Page 2 of 2 00-09:16:02.453 25 4.14 5.7960 00-09:16:02.953 25.5 4.084 5.7176 00 09:16:03.453 26 4.031 5.6434 00-09:16:03.953 26.5 3.978 5.5692 00:09:16:04.453 27 3.928 5.4992 00.09:16:04.953 27.5 3.878 5.4292 00-09:16:05.453 28 3.83 5.3620 00,09:16:05.953 28.5 3.783 5.2962 00.09:16:06.453 29 3.738 5.2332 00:09:16:06.953 29.5 3.695 5.1730 00-09:16:07.453 30 3.651 5.1114 00.09:16:07.953 30.5 3.609 5.0526 00.09:16:06.453 31 3.568 4.9952 00.09:16:08.953 31.5 3.528 4.9392 00.09:16.09.453 32 3.491 4.8874 00.09:16:09.953 32.5 3.457 4.8398 00.09:16:10.453 33 3.423 4.7922 00.09:16:10.953 33.5 3.389 4.7446 00:09:16:11.453 34 3.359 4.7026 00.09:16:11.953 34.5 3.327 4.6578 00:09:16:12.453 35 3.297 4.6158 0009:16:12.953 35.5 3.269 4.5766 00.09:16:13.453 36 3.241 4.5374 00:09:16:13.953 36.5 3.214 4.4996 00.09:16:14.453 37 3.188 4.4632 00.09:16:14.953 37.5 3.163 4.4282 00.09:16:15.453 38 3.14 4.3960 00.09:16:15.953 38.5 3.118 4.3652 00:09:16:16.453 39 3.096 4.3344 00.09:16:16.953 39.5 3.075 4.3050 00.09:16:17.453 40 3.055 4.2770 00:09:16:17.953 40.5 3.036 4.2504 00.09:16:18.453 41 3.018 4.2252 00.09:16:18.953 41.5 3.001 4.2014 00.09:16:19.453 42 2.985 4.1790 00.09:16:19.953 42.5 2.969 4.1568 00:09:16:20.453 43 2.954 4.1356 00.09:16:201953 43.5 2.94 4.1160 00.09:16:21.453 44 2.928 4.0992 00.09:16:21.953 44.5 2.915 4.0810 00,09:16.22.453 45 2.905 4.0670 00 09:16:22.953 45.5 2.895 4.0530 00-09:16:23.453 46 2.886 4.0404 00-09:16:23.953 46.5 2.88 4.0320 00.09:1624.453 47 2.874 4.0236 00.09:16:24.953 47.5 2.871 4.0194 00.09:16-25.453 48 2.869 4.0166 00,09:1625.953 48.5 2.869 4.0166 00.09:1626.453 49 2.868 4.0152 00.09:1628.953 49.5 2.868 4.0152

CoreRood Tank"B" Page l ot 2 Clock Time Elapsed time B Volts "B" Level B' Tank Linear 00:09:51:15.953 0

8.988 12.5832 Regression Output:

00.09:51:16.453 0.5 8.990 12.5860 Constant 13.7962844 00:09:51:16.953 1

9.013 12.6182 Std Err of Y Est 0.0118267 00.09:51:17.453 1.5 8.992 12.5888 R Squared 0.99931053 00:09:51:17.953 2

8.950 12.5300 No. of Observations 9

00:09:51:18.453 2.5 8.871 12.4194 Degrees of Freedom 7

00.09:51:18.953 3

8.899 12.4586 00.09:51:19.453 3.5 8.871 12.4194 X Coefficient(s)

-0.30758 ft/sec 00.09:51:19.953 4

8.798 12.3172 Std Err of Coef.

0.0030536414207 00.09:51:20.453 4.5 8.751 12.2514 00.09:51:20.953 5

8.703 12.1842 Flow-Ft.Isec. x 67.96 sq. ft. x 7.48 gal/cu. ft. x 60 sec/min 00:09:51:21.453 5.5 8.601 12.0414 00:09:51:21.953

- 6 8.524 11.9336 Flow -

9381 gpm 00:09:51:22.453 6.5 8.425 11.7950 00:09:51:22.953 7

8.319 11.6468 00:09:51:23.453 7.5 8.215 11.5010 Note: Regression based on seconds 6 through 10 00.09:51:23.953 8

8.104 11.3456 00:09:51:24.453 8.5 7.992 11.1888 00.09:51:24.953 9

7.884 11.0376 00-09:51:25.453 9.5 7.763 10.8682 00.09:51:25.953 10 7.646 10.7044 During the test the following beginning/ending pressures 00-09:51:26.453 10.5 7.542 10.5588 were noted:

00.09:51:26.953 11 7.428 10.3992 Beginning Ending 00.09:51:27.453 11.5 7.306 10.2284 Press. Ch. 1 42.40 41.70 00.09:51:27.953 12 7.234 10.1276 Press. Ch. 2 7.20 6.40 00.09:51:28.453 12.5 7.127 9.9778 00-09:51:28.953 13 7.024 9.8336 00 09:51:29.453 13.5 6.921 9.6894 00-09:51:29.953

.14 6.824 9.5536 PZR Level(A1717) 300.30 301.00 00:09:51:30.453 14.5 6.725 9.4150 00-09:51:30.953 15 6.635 9.2890 00.09:51:31.453 15.5 6.547 9.1658 00.09:51:31.953 16 6.445 9.0230 00,09:51:32.453 16.5 6.379 8.9306 00.09:51:32.953 17 6.296 8.8144 00.09:51:33.453 17.5 6.222 8.7108 00.09:51:33.953 18 6.143 8.6002 00:09:51:34.453 18.5 6.043 8.4602 00.09:51:34.953 19 5.995 8.3930 00:09:51:35.453 19.5 5.918 8.2852 00.09:51:35.953 20 5.825 8.1550 00.09:51:36.453 20.5 5.772 8.0808 00.09:51:36.953 21 5.702 7.9828 00.09:51:37.453 21.5 5.611 7.8554 00.09:51:37.953 22 5.570 7.7980 00.09:51:38.453 22.5 5.502 7.7028 00.09:51:38.953 23 5.415 7.5810 00-09:51:39.453 23.5 5.389 7.5448 00:09:51:39.953 24 5.330 7.4620 00:09:51:40.453 24.5 5.281 7.3934 00-09:51:40.953 25 5.222 7.3108 00:09:51:41.453 25.5 5.170 7.2380 00.09:51:41.953 26 5.120 7.1680 00.09:51:42.453 26.5 5.058 7.0812 00-09:51:42.953 27 5.019 7.0286 00.09:51:43.453 27.5 4.978 6.9692 00.09.51:43.953 28 4.896 6.8544 00:09:51:44.453

'28.5 4.871 6.8194 00-09:51:44.953 29 4.838 6.7732 00.09:51:45.453 29.5 4.770 6.67r0 00:09:51:45.953 30 4.745 6.6V 30 00.09:51:46.453 30.5 4.702 6.5828 00.09:51:46.953 31 4.633 6.4862 00.09:51:47.4-53 31.5 4.633 6.4862 00.09:51:47.953 32 4.591 6.4274 00,09:51:48.453 32.5 4.522 6.3308 00:09:51:48.953 33 4.523 6.3322

Core Flood Tank "B' Page 2 of 2 00.09:51:49.453 33.5 4.485 6.2790 00.09:51:49.953 34 4.417 6.1838 00-09:51:50.453 34.5 4.428 6.1964 00.09:51:50.953 35 4.397 6.1558 00.09:51:51.453 35.5 4.339 6.0746 00-09:51:51.953 36 4.347 6.0858 00.09:51:52.453 36.5 4.324 6.0536 00.09:51:52.953 37 4.270 5.9780 00.09:51:53.453 37.5 4.261 5.9654 00:09:51:53.953 38 4.227 5.9178 00.09:51:54.453 38.5 4.207 5.8898 00.09:51:54.953 39 4.188 5.8632 00.09:51:55.453 39.5 4.141 5.7974 00.09:51:55.953 40 4.147 5.8058 00.0951:56.453 40.5 4.121 5.7694 00.0951:56.953 41 4.111 5.7554 00-.09:51:57.453 41.5 4.089 5.7246 00.09:51:57.953 42 4.075 5.7050 00.09:51:58.453 42.5 4.054 5.6756 0009:51:58.953 43 4.048 5.6644 00.09:51:59.453 43.5 4.026 5.6364 00.09:51:59.953 44 4.017 5.6238 00:09:52:00.453 44.5 4.008 5.6112 00.09:52:00.953 45' 3.995 5.5930 00.09:52:01.453 45.5 3.984 5.5776 00.09:52.01.953 46 3.982 5.5748 00.09:52:02.453 46.5 3.972 5.5608 00:09:52:02.953 47 3.969 5.5566 00.09:52:03.453 47.5 3.967 5.5538 0019:52:03.953 48 3.964 5.5496 X)I 0,I