ML20067E004

Integrated Leak Rate Test Rept

ML20067E004
Person / Time
Site:	Calvert Cliffs
Issue date:	11/30/1982
From:	BALTIMORE GAS & ELECTRIC CO.
To:
Shared Package
ML20067E002	List: ML20067E001 ML20067E004
References
NUDOCS 8212210448
Download: ML20067E004 (47)

Text

________________ _____

,, EXECUTIVE

SUMMARY

A Primary Containment Integrated Leakage Rate Test (ILRT) was successfully completed at the Calvert Cliffs Nuclear Power Plant, Unit 1, on June 22,1982. The test met the requirements set forth in 10CFR50, Appendix 3.

Listed below is the summary of the test results for both the mass point and total time data analysis techniques. The actual measured leakage (Lam) and the 95 percent upper confidence limit (UCL), in units of weight percent per day, are compared to the acceptance criteria.

Mass Point Test Result Acceptance Criteria ILRT Lam 0.021 <0.150 ILRT UCL 0.026 <0.150 (J'3 Verification Test Lam 0.185 0.169 < Lam < 0.269 Total Time ILRT Lam 0.023 <0.150 ILRT UCL 0.086 <0.150 Verifice. tion Test Lam 0.190 0.171 < Lam < 0.271 The chronological summary of events, summary of plant technical data, and discussion of test resuits are included in portions of this report.

O 8212210448 821130 PDR ADOCK 05000317 P PDR

O TABtE Oe CONreNTS i

I I N T R O D U CTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 TES T S Y N O PSIS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1

TEST D ATA SU M M A RY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 AN ALYSIS AND INTERPRETATION . . . . . . . . . . . . . . . . . . . . . . . . . . 8 R E F E R EN C ES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1 APPENDICES A. Description of BechtelILRT Computer Program B. Pressurization and Stabilization Summary Data C. ILRT Trend Report D. ILRT Summary Data, Mass Point, and Total Time E. ILRT Plots, Airmass, Temperature, Pressure and Vapor Pressure O

D F. Verification Flow Summary and Data G. ISG Calculations H. Local Leakage Rate Test Evaluation O

1. INTRODUCTION O This report presents data, analysis, and conclusions pertaining to the Calvert Cliffs Nuclear Power Plant Unit 1 Integrated Leakage Rate Test (ILRT) performed in June l

1982. The Integrated Leakage Rate Test (Type A) is performed periodically to demonstrate that the combined leakage through the reactor containment and those systems penetrating the containment does not exceed the allowable leakage rate specified in the Plant Technical Specifications.

The successful periodic Type A and supplemental verification tests were performed according to the requirements of the Calvert Cliffs Nuclear Power Plant, Unit 1, Technical Specifications and 10CFR50, Appendix 3. The Calvert Cliffs Type A test i method is the Absolute Method described in ANSI N45.4-1972, " Leakage Rate

! Testing of Containment Structures for Nuclear Reactors" and ANSI / ANS 56.8-1981, " Containment System Leakage Testing Requirements." The leakage rate was calculated using formulas from the above ANSI Standards and BN-TOP-1, Rev.1,

" Testing Criteria for Integrated Leakage Rate Testing of Primary Containment Structures for Nuclear Power Plants. Type A and verification test durations were according to the criteria of BN-TOP-1.

A 95% upper confidence level was calculated for leaka'ge rate data as required by Reference 6. This is to ensure a 95% probability that the calculated leakage rate value is within the acceptance limits. All calculations were done with Bechtel's

ILRT computer program described in Appendix A.

The temperature and pressure history and the containment air mass variations were plotted by the computer program and are contained in Appendix E.

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II. TEST SYNOPSIS O Valve line-ups were conducted on all systems to establish post-accident conditions except for shutdown cooling and three penetrations necessary to conduct the i ILRT. The inspection of the containment's accessible interior and exterior surfaces l

was conducted prior to pressurization. No evidence of structural deterioration was noted which would have affected containment integrity or leak tightness. During the inspection of the exterior of the dome, some su/ face cracks were observed.

The cracks did not extend deeper than one inch nor 1/32 inch wide. The cracks were monitored during the test and no change was noted.

Containment pressurization commenced at 2:09 p.m., June 19,1982. At 9:00 p.m.

air bubbles were noted in the spent fuel pool, and containment pressure was approximately 17 psig. Pressurization was secured and depressurization to below 12 Q psig was commenced to make a containment entry to inspect the fuel transfer tube drain valve . The drain valve handwheel was missing, so the valve could not be checked shut. A cap was placed on the drain line. The cap was not shown in FSAR or on the P&lD. Evaluation after the ILRT determined that the leakage rate through the drain valve would have been 0.025 weight percent per day if the line had not been capped. Prior +a restart of pressurization the plant heating return line was aligned inaccordance witn :he FSAR. The check valve on the plant heating supply line was suspected to leak, therefore, the test boundary was extended to the upstream gate valve. The Local leak rate test of the check valve measured 0.0004 weight percent per day. Pressurization of containment was restarted at 5:55 a.m.

and test pressure was reached at 9:00 p.m. June 20. Containment fans and coolers were secured 30 minutes after securing compressors. The stabilization period was 8.75 hours8.680556e-4 days <br />0.0208 hours <br />1.240079e-4 weeks <br />2.85375e-5 months <br /> because of considerable data scatter during the first three hours.

h Collection of data to determine the integrated leakage rate commenced at

5:45 a.m. June 21 and was completed at 1:45 p.m. The verification flow was

.O initiated, but because of an improper line-up of the rotometer, flow stabilization was not achieved until 1:15 a.m. June 22. The verfication flow test was completed satisf actorily and depressurization of the containment commenced at 7:02 a.m.

June 22,1982. Summary of test phases were as follow:

Test Phase Time Duration Date Pressurization 14:09 - 22:30 8.5 hr. June 19 Depressurization to 12 psi 23:00 - 2:00 3 June 19-20 Restart Pressurization 5:55 - 21:00 15 June 20 Stabilization 21:00 - 5:30 8.5 June 20-21 ILRT 5:45 - 13:45 8.0 June 21 Verification Stabilization 14:00 - 1:15 11.25 June 21-22

] Verification Test 1:15 - 5:15 4.0 June 22 III. TEST DATA

SUMMARY

A. Plant Information Owner: Baltimore Gas and Electric Company Plant: Calvert Cliffs Nuclear Power Plant Unit 1 Location: Lusby, Maryland Containment Type: Post-tensioned concrete Date Test Completed: June 22,1982 B. Technical Data ,

1. Containment Net Free Air Volume 2,000,000 cu it

2. Design Pressure 50 psig

3. Design Temperature 276 F O 4. C eicureted eeew a ccident Pressure, Pa 50 psis

-4.

5. Containment ILRT Average

-O TemPeratere timits60-120 e C. Type A Test Criteria

1. Test Method Absolute

2. Leakage Rate Data Analysis Total Time per BN-TOP-1 Techniques and Mass Point per ANSI /ANS 56.8-1981

3. Test Pressure 50.0 psig + 0.60

-0

4. Maximum Allowable Leakage 0.2%/ day Rate, La per Technical Specification

5. 75% of La 0.15%/ day D. Type A Test Result O 1. Integrated Leakage Rate From Regression %/ day At Upper 95%

Line (Lam) Confidence Limit

a. Mass Point Analysis 0.021 0.026  %

b. Total Time Analysis 0.023 0.086

2. Adding the leakage rate from the spent fuel transfer tube drain line and the heating supply line check valve results in 0.0254 weight present per day. Adding tois amount to the 959' confidence limit for both the mass

, point and total time results in 0.0514 and 0.1114 weight per day reppectively.

E. Verification Test

1. Imposed flow rate (Li) 12.3 scfm/0.198%/ day

2. Verification Test Results Leakage Rate, %/ day

a. Mass Point Anetysis 0.185

b. Total Time Analysis 0.190 l

3. Verification Test Limits Test Limit, %/ day

,S C a. Mass Point Analysis (1) Upper Limit 0.269 (Li + Lam + 0.25 La)

(2) Lower Limit 0.169 (L1 + Lam - 0.25 La)

b. Total Time Analysis (1) Upper Limit 0.271 (Li + Lam + 0.25 La)

(2) Lower Limit 0.169 (L1 + Lam - 0.25 La)

F. Report Printouts The Report Printouts of the Type A and verification test calculations are provided for the Mass Point and Total Time Analysis (Appendixes B through F). Stabilization data is also provided (Appendix B).

Q G. Local Leakage Rate Test Results - Type B and C Tests

1. LLRT Results - The Type B and C leakage tests were conducted prior to the Type A test. The total as lef t LLRT measurement for Unit I was 16, 225.v.cm. This value converts to 0.0094%/ day, which is less than the

, technical specification limit of 0.12%/ day. An evaluation of as left compared to as found data is contained in Appendix H.

2. During the ILRT the following penetrations were not in the post accioent 1

position. The following is the local leak rate measurement for these penetration.

Penetration System As Lef t 7A ILRT Instrumentation 3.4 7B ILRT .astrumentation 9.8 41 Shutdown Cooling Return 751.2 g 50 ILRT Pressurization 0.6 v Total: 764.8 sccm

%/ day: .0004

3. Periodic Type B and Type C Test Results Since Last ILRT O Outage Date LLRT Acceptance Criteria 7/17/79 53,741 sccm 12/18/80 151,668 sccm .6 La =

6/28/82 16,226 sccm 207,744 secm H. Integrated Leakage Rate Measurement System q l

The following instrument system was used: j No Required Description Data

1. Absolute Pressure 2 Precision Pressure Gage Range: 0-100 psia Mensor Model 10100-001 Accuracy: 1 002% F.S.

Sensitivity: .001 psia l Repeatability: .0005% F.S. l Calibration Data: 4/15/82

2. Drybulb Temperature O 18 Temperature Sensors Rosemount 100 ohm Range:

Accuracy:

0-150 F

+ 0.10 F Platinum Model 78-65-17 Sensitivity: 701 F Repeatability: .003 F Calibration Data: 4/14/82

3. Dewpoint Temperature 6 Dewpoint Detectors Range: 0-100 F Weather Measure Accuracy: +0.32 F Model H-361 DPA Sensitivity: 70.04 F Repeatability: ~ 0.01 F Calibration Data: 6/2/82

4. Flow Meters 2 Brooks Model 1110-24 Range: 2-20 scfm Accuracy: 12% F.S.

Repeatability: 0.01 scfm Calibration Data: 5/20/82

5. Overall Instrumentation Selection Guide (ISG) Value (from ANSI /ANS 56.8-1981, Appendix G) based on ILRT instrumentation and an eight hour minimum test duration

= 0.00765%/ day. (Calculations Appendix G)

, 6. Drybulb and Dewpoint Temperature Sensor S' Volume Fractions - Table 1

7. RTD junction box locations - Table 2.

1. Information Retained at Plant The following information is available for review at the Facility:

1. Listing of all containment penetrations, including the total number of like penetrations, penetration size and function.

2. Listing of normal operating instrumentation used for the leakage rate test.

3. Systems lineup (at time of test).

4. A continuous, sequentiallog of events during the test.

5. Documentation of instrumentation calibration and standards.

6. Data to verify temperature stabilization criteria as established by test procedure (Appendix B).

7. The working copy of test procedure that would include signature sign-off of O procedural steps.

8. The procedure and ail data from local leakage rate testing of penetrations and valves.

9. Computer printouts of Integrated Leakage Rate Test Data and manual data accumulation along with summary description of computer program.

10. The Quality Assurance audit plan that was used to monitor ILRT.

11. A listing of all test exceptions including changes in containment system boundaries instituted by licensee to conclude successful testing.

12. A review of confidence limits of test results with accompanying computer printouts where applicable.

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13. Description of method of leak rate verification of instrument measuring system (super imposed leakage), with calibration informat.%n on flowmeters I

along with calculations that were used to measure the verification leakage I

rate. l l

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14. Plots presenting ILRT data obtained during the test (Appendix E).

V IV. ANALYSIS AND INTERPRETATION The Integrated Leakage Rate Test results at the upper 95% confidence level, Lam =

0.026%/ day (Mass Point analysis) and 0.086%/ day (Total Time analysis), satisfy the acceptance criterion. The acceptance criterion is Lam 0.75 La = 0.150%/ day, at Pa = 50 psig (-0 psi, + 0.6 psi).

Local Leakage Rate of .0004%/ day for penetrations not in post-LOCA lineup is 4

negligible.

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TABLE 1 DRYBULB AND DEWPOINT TEMPERATURE SENSOR LOCATIONS Volume TE Elevation Azimuths Distance Frac tions Reference No. Tag No. (ft) (degrees) From Center ILE T Drawing i O-TE-5500T 175 0 0 .081 E-292 2 iO-TE-5501 154 180 33 .081 E-292 3 0-TE-5502 154 0 33 .081 E-292 4 O-TE-5503 126 90 48 .075 E-292 5 0-TE-5508 115 0 0 .075 E-292 6 O-TE-5511 50 210 (#12 SG) 55 .021 E-290 7 O-TE-5513 104 180 32 .071 E-275-2 8 O-TE-5504 104 0 30 .071 E-292 9 O-TE-5505 75 20 48 .047 E-292 10 0-TE-5506 65 0 (Pool) 0 .042 E-292 q 11 O-TE-5517 16 180 45 .042 E-298 V 12 O-TE-5507 50 140 44 .041 E-295-1 13 0-TE-5509 50 85 (#11 SG) 40 .021 E-295-1 14 O-TE-5510 50 330 50 .041 E-295-2 15 O-TE-5512 75 220 44 .047 E-295-2 16 O-TE-5514 16 80 50 .059 E-289 17 O-TE-5515 16 0 48 .045 E-289 18 O-TE-5516 16 270 25 .059 E-289 DEWCELLS AE No.

1 O-AE-5518-VP 154 0 33 .224 E-292 2 O-AE-5519 119 180 33 .224 E-292 3 O-AE-5520 75 350 48 .224 E-292 4 O-AE-5521 50 320 40 .124 E-292-2 5 O-AE-5522 16 0 30 .102 E-289 6 O-AE-5523 16 180 45 .102 E-289 DH-165

TABLE 2 RTD JUNCTION BOX LOCATIONS Floor Elevation Azimuth Box Elevation Cable Number RTD No. (ft) (degrees) (ft)

O-TE-5500 1 119 325 120 iO-TE-5001 2 119 145 120 0-TE-5502 3 119 325 120 iO-TE-5503 4 119 145 120 0-TE-5508 5 69 120 71 O-TE-5504 8 69 10 71 O-TE-5505 9 69 350 71 iO-TE-5506 10 69 220 71 0-TE-5513 7 50 180 54 C}

V O-TE-5507 12 50 150 54 O-TE-5509 13 50 40 50 (#11 SG) 0-TE-5510 14 50 320 54 O-TE-5511 6 40 240 40 (#12 SG)

O-TE-5512 15 50 210 54 O-TE-5517 11 10 180 16 O-TE-5514 16 10 80 16 10-TE-5515 17 10 0 16 O-TE-5516 18 10 270 16 ,

DH-165 O

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V. REFERENCES J

1. Calvert Clifis, Unit 1, Plant Technical Specifications.

2. Calvert Cliffs Procedure STP M-662-1, Integrated Leakage Rate Test, Unit 1 Containment.

3. 10CFR50, Appendix 3, Reactor Containment Leakage Testing for Water Cooled Power Reactors.

4. U.S. Nuclear Regulatory Commission Regulatory Guide 1.68, Preoperational and Initial Startup Test Program for Water Cooled Power Reactors.

5. ANSI N45.4-1972, Leakage Rate Testing of Containment Structures for Nuclear Reactors.

6. ANSI /ANS 56.8-1981, Containment System Leakage Testing Requirements.

7. Bechtel Topical Report BN-TOP-1, Testing Criteria for Integrated Leakage Rate Testing of Primary Containment Structures for Nuclear Power Plants.

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BECHTEL ILRT' COMPUTER PROGRAM O A. Program and Report Description

1. The Bechtel ILRT computer program is used to determine the inte-grated leakage rate of a nuclear primary containment structure.

The program is used to compute leakage rate based on input values of time, free air volume containment atmosphere total pressure, drybulb temperature, and dewpoint temperature (water vapor pressure).

Leakage rate is computer using the Absolute Method as defined in ANSI /ANS 56.8-1981, " Containment System Leakage Testing Requirements" and BN-TOP-1, Rev 1, " Testing Criteria for Integrated Leakage Rate Testing of Primary Containment Structures for Nuclear Power Plants".

The program is designed to allow the user to evaluate containment leakage rate test results at the jobsite during containment leakage testing. Current leakage rate values may be obtained at any time during the testing period using one of two computational methods, yielding three different report printouts.

2. In the first printout, the Total Time Report, leakage rate is com-puted from initial values of free air volume, containment atmosphere drybulb temperature and partial pressure of dry air, the latest values of the same parameters, and elapsed time. These individually computed leakage rates are statistically averaged using linear re-gression by the method of least squares. The Total-Time Method is the computational technique upon which the short duration test

, criteria of BN-TOP-1, Rev 1, " Testing Criteria for Integrated Leakage Rate Testing of Primary Containment Structures for Nuclear Power Plant," are based.

3. The second printout is the Mass Point Report and is based on the Mass-Point Analysis Technique described in ANSI /ANS 56.8-1981,

" Containment System Leakage Testing Requirements." The mass of dry air in the containment is computed at each data point (time) using the Equation of State, from current values of containment atmosphere drybulb temperature and partial pressure of dry air. Contained mass is " plotted" versus time and a regression line is fit o the data using the method of least squares. Leakage rate is determined from

- the statistically derived slope and intercept of the regression line.

4. The third printout, the Trend Report, is a summary of leakage rate values based on Total time and Mass Point computations presented as a fuction of number of data points and elapsed time (test dura-tio n) . The Trend Report provides all leakage rate values required for comparision to the acceptance criteria of BN-TOP-1 for conduct of a shor.t duration test.

5. The program is written in a high level language and is designed for use on a mini-computer with direct data input from the data acquisition system, or on a mainframe via a remote data terminal.

Brief descriptions of program use, formulae used for leakage rate computations , and program logic are provided in the following paragraphs.

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B. Explanation of Program O

\- 1. The Bechtel ILRT computer program is written, for use by experi-enced ILRT personnel, to determine containment integrated leakage rates based on the Absolute Method described in ANSI /ANS 56.8-1981 and BN-TOP-1.

2. Information loaded into the program prior to the start of the test:

a. Number of containment atmosphere drybulb temperature sensors and dewpoint temperature (water vapor pressure) sensors to be used in leakage rate computations for the specific test

b. Volume fractions assigned to each of the above sensors

c. Calibration data for above sensor, if required

d. Calibration data for pressure sensor.

3. Information entered into the program at the start of the test:

a. Test title

b. Current test pressure and peak test pressure

c. Maximum allowable leakage rate at peak test pressure

d. If the test is a verification test:

(1) Imposed leakage rate (2) Leakage rates determined using the two computational methods described in Paragraph A above during the ILRT.

4. Data received from the data acquistion system during the test, and used to compute leakage rates:

a. Time and date r

b. Containment atmosphere drybulb temperatures l

c. Containment atmosphere pressure

d. Containment atmosphere dewpoint temperatures

5. After all. data at a given time are received , a Summary of Measured Data report (refer to " Program Logic," Paragraph D, " Data" option command) is printed on the data terminal. The date, containment atmosphere weighted average drybulb temperature, partial pressure of the dry air and water vapor pressure are stored on a data file.

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6. If drybulb and dewpoint temperature sensors should fail during the O

3 test, the data from the sensor (s) are not used. The volume frac-tions for.the remaining sensors are recomputed and reloaded into the program for use in ensuing leakage rate computations.

C. Leakage Rate Formulae

1. Computation using the Total Time Method: _

a. Measured leakage rate, from data:

PV1 i = W 1RT1 (1) i PVi i = WiRTi (2) 2400 (W1-W) i Li =

(3)

Att W1 Solving for Wi and Wi and substituting equations (1) and (2) into (3) yields:

Li = 2400/Ati (1-T11 P /T i1P ) (4) where:

W,Wi 1 = Weight of contained mass of dry air at times ti and O- ti respectively, lbm.

T,Ti 1 = Containment atmosphere drybulb temperature at times ti and ti respectively, "R.

P,Pi 1 = Partial pressure of the dry air component of the con-tainment atmosphere at times ti and ti respectively, psia.

Vi = Containment free air volume (constant or variable during the test), ft3, ti, ti = Time at 1st and i th data points respectively, hours.

Att = Elapsed time from ti to ti, hours.

R = Specific gas constant for air = 53.35 ft.lbf/lbm.*R.

Ly = Measured leakage rate computed during time interval ti to ti, %/ day.

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b. Calculated leakage rate from regression analysis:

7 L = a + batN (5) i, where:

L = Calculated leakage rate, %/ day, as determined from the regression line.

ILi(EAtg2 ) - Eati (ILiati )

2 N(EAtt ) - (IAt i)2 N(EL i at i ) - ELi (eati) 2 N(Eat 1 ) - (EAti)2 N = Number of data points N

I=E i=1

c. Calculated leakage rate at the 95% confidence level.

L95 = a + bacN + S_ (8)

O where:

L L95 = calculated leakage rate at the 95% confidence level, %/ day, at elapsed time AtN*

For AtN < 24 S_ =t 0 025;N-2 [E(L / (N-2)]l/2 x [1 + l_ + (At i 1-5 )2 N ~ ) /E(St i

-E) ]1/ (9a)

L N where, t0 025;N-2 = 1.95996 + 2.37226 + 2.82250 ;

N-2 (N-2)Z For AtN > 24 S_ = t0 025;N-2 [E(L1 - 5 1)2 /(N-2)]1/2 x [1_ +(AtN - Et)2/E(Att - EE)2)l/2 ' (9g)

L N 1.6449(N-2)2 + 3.5283(N-2) + 0.85602 where, t0 025;N-2 =

(N-2)2 + 1.2209(N-2) - 1.5162 i I=

t Calculated leakage rate computed using equation (5) at total elapsed time A ti, %/ day.

eat t N

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2. Computation using the Mass Point Method

a. Contained mass of dry air from data:

Wi = 144 P4Vt RTi (10) where:

All symbols as previously defined.

b. Calculated leakage rate from regression analysis:

b E = -2400 - (11) a where:

I = Calculated leakage rate, %/ day, as determined from the regression line.

IWi -bEAtt  ;

a =

(12)

N E[(W i - EWi /N) ( Ati - E)]

b = (13)

E(Att - At)2 Att = Total elapsed time at time of i th data point, hours N = Number of data points Wi = Contained mass of dry air at i th data point, lbm, as computed from equation (10).

N E=E i=1 E = Eat i/N l

c. Calculated leakage rate at the 95% confidence level.

-2400 E95 = (b + Sb) (14) a where:

595 = Calculated leakage rate at the 95% confidence level, %/ day.

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I Sb"E0 025;N-2 1/2 (15) r (N-2)E(Att - E)2 1.6449(N-2)2 + 3.5283 (N-2)2 + 0.85602 where, t0 025;N-2 =

(N-2)2 + 1.2209 (N-2) - 1.5162 W1 = Contained mass of dry air, Iba, computed at the i th (16) data point from the regression equation f = a + bat i 1

All other symbols are previously defined.

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I D. Program Logic l

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1. A flow chart of Bechtel ILRT computer program usage is presented in '

Figure 1, following. The various user options and a brief descrip-tion of their associated function are presented below:

OPTION COMMAND FUNCTION DATA Enables operator to enter raw data. When the system requests values of time, volume temperature, pressure and vapor pressura, the user enters the appropriate data. After completing the data entry, a summary is printed out. The user then verifies that the data were entered correctly. If errors are detected, the user will then be given the opportunity to correct the errors. Af ter the user verifies that the data were entered correctly, a Corrected Data Summary Report of time, data, average temperature, partial pressure of dry air, and water vapor pressure is printed.

TREND Terminal will print out a Trend Report.

TOTAL Terminal will print out a Total Time Report.

MASS Terminal will print out a Mass Point Report.

TERM Enables operator to sign-off temporarily or pe rmanently.

SAVE Enables operator to store the Data Summary on a file.

PREV Enables operator to call up an old, previously stored, file.

CORR Enables operator to correct data stored on a file.

LIST When used with a given file name, the printer will print out a list of the Summary Data stored on the file.

READ Enable the computer to receive the next set of raw data from the data acquisition system directly.

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O BECHTEL CONTAINMENT INTEGRATED LEAKAGE RATE TEST COMPUTER PROGRAM FLOW CHART

( SIGN ON )

t

\ ENTER BASIC / / ENTER PREVIOUS \

glNFORMATION /

-NO

\ VALUES FROM FILES /

,YES r

o M D ATA - ENTERS

SUMMARY

DATA STORED ON t (OPTIONS}" SELECTED FILES

<> PREV o o

^^

<FCORR  ;

SUMMARY

DATA  ;

v

{ ERROR?) "

[ YES STORES

SUMMARY

EarEa NO -'^" = ^ =

O 1( CORRECTIONS / SEtECTiDiiLE n =

t

SUMMARY

OF <s-TREND  :

TREND REPORT!

MEASURED DATA u i a-TOTAL  : TOTAL TIME  : I REPORT

' ERRO R'/)

o NO

< MASS  : MASS POINT REPORT CORRECTED "

SUMMARY

DATA  !

PRINTOUT  ;

<r LIST

. PRINT GUT OF

SUMMARY

DATA

<sTERM

( SIGN OFF) ,

O = J A-8 '

.~ -

p V 9 ./

-,4 E. COMPUTER REPORT AND DATA PRINTOUT C)

V i 2 MASS POINT' REPORT f .

The Mass Pofnc Report presents leakage rate data (wt%/ day) as deter-mined by the iMass Point Method described in the " Computer. Program" section of this' report. The " Calculated Leakage./ Rate'" l's the value determined from'the regression analysis. The " Containment Air Mass" values are the masses of dry air in the containeqnt (1ba). These values, determined frosjthe Equation of State, are used in the['

regreesion dnalysis.

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t TOTAL TIME REPORT '

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. The Total Time Report presents data leakage rate (wt%/ day) as' deter-j mined by the Total Time Method. The " Calculated Leakage Rate" is the -

value determined from the regression analysis. The " Measured Leakage .'

Rates" are the leakage rate values determined using Total Time calcu-lations used in the above regression analysis. '

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t TREND REIORT s, l The Trend Report presents leakage rc'.es'(as determined by the Mass Point and Total Time methods described in the " Computer Program" p section of this report) in percent of the initial contained mass of 1

d dry air per day (wt%/ day), elapsed time (hours), and number of data points.

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SUMMARY

DATA REPORT ,' #

s TheSummaryDatare[2rt,presentstheactualdatausedtocalelate i

leakage rates by the variosts, methods described in the " Computer Prcgram" section of this report. ' The five column headings are TIME, DATE, TERP, .

l PRESSURE, and VPRS, and contain data defined as follows:-

1. TIME: Time in 24-hour aotations (hours and' minutes).

2. DATE: Calendar dato' (month and day).

3. TEMP: Containment weighted-average drybulb temperature in absolute units, degrees Rankine (*R).

4. PRESSURE: P/ttial pressure of the dry air componcat af the con I r tainment atmosphere in absolute units (p'sia).

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5. VPRS: ,

Partial pressure of water vapor of the containment

, atmosphere in absolute units (psia).

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F.

SUMMARY

OF MEASURED DATA AND

SUMMARY

OF CORRECTED DATA -

() The Summary of Measured Data presents the individual containment atmosphere drybulb temperatures, dewpoint temperatures, and j absolute total pressure measured at the time and date as indicated and is used to determine the temperature and pressure described in above.

1. TEMP 1 through TEMP N are the drybulb temperatures, where N = No. of RTD's. The values in the right-hand column are temperatures (*F), multiplied by 100, as read from the data acquisition system (DAS). The values in the left-hand column are the corrected temperatures expressed in absolute units

(*R).

2. PRES 1 is the total pressure, absolute. The right-hand value, in parentheses, is a number in counts as read from the DAS.

This count value is converted to a value in psia by the com-puter via the instrument's calibratior table, counts versus psia. The left-hand column is the absolute total pressure, i psia.

3. VPRS 1 through VPRS u are the dewpoint temperatures (water vapor pressures), where n = No. of dewpoint sensors. The values in the right-hand column are temperatures (*F), multi- '

plied by 100 as read from the DAS. The values in the left-hand column are the water vapor pressures (psia) from the steam tables for saturated steam corresponding to the dewpoint O (saturation) temperatures in the center column.

The Summary of Corrected Data presents corrected temperature and pressure values and calculated air mass determined as follows:

' TEMPERATURE (*F) is the volume weighted average containment 1.

atmosphere drybulb temperature derised from TEMP 1 through TEMP N.

2. CORRECTED PRESSURE (psia) is the partial pressure of the dry air component of the containment atmosphere, absolute. The volume weighted average containment atmosphere water vapor pressure is subtracted from PRES 1, total pressure, yielding the partial pressure of the dry air.

,' 3. VAPOR PRESSURE (psia) is the volume weighted average contain-t ment atmosphere water vapor pressure, absolute derived from VPRS 1 through VPRS n.

4

4. CONTAINMENT AIR MASS (lbm) is the calculated mass of dry air i in the containment. The mass of dry air is calculated using a the containment free air volume and the above TEMPERATURE and CORRRECTED PRESSURE of the dry air. 1 4

J DH-103 A-10

PRESSURIZATION AND STABILIZATION DATA PREG.DAT I_.i CALVERT CLIFFS UNIT 1 ILRT

\ _/

ALMAX = 0.200 VOL = 2000000.00 VRATET = 0.000 VRATEi1 m 0.000 VR472P n u.000 TIME DATE TEMP PRESSURE VPRS VOLUME 1409 619 341.82487 14.258271 0.30981112 2000000.

1430 619 542.97443 15.649601 0.31293816 2000000.

1500 619 543.4e803 16.918559 0.31579533 2u00000.

1530 619 543.53905 18.188131 0.31798723 2000000.

1600 619 543.66956 19.455442 0.31043758 2000000.

1630 619 342.38464 20.675936 0.31865665 2000000.

1700 619 542.06000 21.922369 0.31972361 2000000.

1730 619 541.83400 23.166958 0.32063529 2000000.

1800 619 541.6CS87 24.400242 0.32205649 2000000.

1830 619 54t.43738 25.635345 0.32266432 2000000.

1900 c19 541.31873 26.971767 0.32500181 2000v00.

1930 619 541.25751 28.113325 0.32520127 2000000.

2000 619 541.23360 29.353626 0.32665670 2000000.

2030 619 541.28296 30.602953 0.32704791 2000000.

2100 619 341.34a54 31.84?829 0.32917252 2000000.

2130 619 341.28388 33.088444 0.32855639 2000000.

2200 619 541.11462 34.166656 0.32934442 2000000.

2230 619 540.63647 34.973335 0.33078060 2000000.

2300 619 539.85e14 34.901932 0.33296204 2000000.

2330 619 537.36871 33.318569 0.32142857 2000000.

O 620 536.67078 31.636127 0.30887279 2000000.

(~T 30 620 536.22406 30.060499 0.29750016 2000000.

\_) 100 620 535.79901 28.583633 0.28546113 2000000.

130 620 535.56355 27.201456 0.27203509 2000000.

200 620 536.23969 26.282969 0.26545042 2000000.

230 620 537.15692 26.221363 0.26511797 2000000.

300 620 537.39673 26.222029 0.26644802 2000000.

330 620 537.41681 26.222826 0.26665154 2000000.

400 620 537.34100 26.215868 0.26661631 2000000.

430 620 537.33661 26.214653 0.267a3153 2000000.

500 620 537.46918 26.221649 0.26682860 2000000.

530 620 537.61584 26.227486 0.26798639 2000000.

600 a2O 537.74463 26.231308 0.27015603 2000000.

630 620 539.30658 27.554480 0.27065960 2000000.

700 620 339.73207 28.879910 0.27509741 2000000.

730 620 539.07451 30.190376 0.28062186 2000000.

800 620 540.04425 31.501234 0.28676537 2000000.

330 620 540.14191 32.807030 0.29997204 2000000.

700 620 540.24969 34.107:07 0.29169593 2000000.

930 620 540.28503 a5.400368 O.2980105.4 2000000.

1000 620 54C . 29010 36.695568 0.30197409 2000000.

1030 620 540.20842 37.786351 0.30332792 2000000.

1100 620 540.10395 39.261990 0.30779409 2000000.

1130 620 540.00720 40.540070 0.31073391 2000000.

1200 620 537.93.127 41.753403 0.31183249 2000000.

1230 620 539.H5992 42.851393 0.31103474 2000000.

1300 c2O 527.72902 4.134552 0.31946692 2000010.

P 1330 620 039.99860 45.423702 O.3206177G 2000000.

(v) 1400 a20 u o.1 m 3 96.732970 e . 323n v y, 2000 coa.

B - 1

1 i

i i

O PRESSURIZATION AND STABILIZATION DATA l l

1430 c20 540.03571 47.9f/692 0.J2S664t7 2000000.

1500 620 540.00549 49 241886 0.33096606 2000000.

1530 620 539.91895 50.506725 0.33536217 2000000, i l 1600 620 539.88391 51. ~771969 0.33564031 2000000.

l 1630 620 537.34296 53.043320 0.33982116 2000000.

1700 620 339,84027 54.31275? 0.34291733 20G0000.

l 1730 c20 539.77667 55.584808 0.33939159 2000000.

1800 620 539.73596 56.847168 O.34120079 2000000.

! 1330 620 539.60899 53.104233 0.34547189 2000000. .

1

! 1900 620 539.40126 59.361759 0.35419786 2000000.  !

1930 620 539.46130 60.631645 O.35060650 2000000.  !

l 2000 620 539.33649 61.895237 0.34972903 2000000. l

. 2030 620 539.24170 63.157944 0.35471985 2000000. '

l 2045 620 539.26392 63.793087 0.35592431 2000000.  !

l "100 620 539.19519 64.41e358 0.36300439 2000000.

I l

!e 4

l I t

I 1

J s

I

+

l l

l l

l i

O B-2

,_ u

I i

Al. VERT CLIFFS LMIT 1 ILRT I

! TR2ND REPORT l LEAKAGE RATES (WEIGlir PERCENT / DAY) i i

1 l TIME AND DATTi Al START OF TEST: 545 0621 l i

ELAPSED TIME: 0.00 HOURS tJU. DATA ELAPSED l'OTAL-TIME ANALYSIG' MASS-FOINT AtlALYSIS POINTS TIME MEAN CALCULATED CALCULATED 957. UCL t 10. 2.25 O.051 0.072 0.051 0. OSci i 11 2.50 0.050 0.006 O.045 O.074 j 12 2.75 O.049 0.009 0.041 0.v65 l 13 3.00 O.04a O.054 0.037 0.057

! 14 3.25 O.046 O.046 O.030 O.049 l 15 3.SO O.04/ O.048 0.056 O.OM3 i

'6 3.75 O.046 0. 0 4 ~7 0.036 O.051 17 4.00 0.045 O.043 O.032 O.046 i8 4.25 O.045 O.042 O.033 0.045 19 4.50 0.043 O.036 0.026 0 039 20 4.75 0.043 0.034 0.025 0.007 i 21 5.00 0.042 0.033 0.026 0.036 l

! 22 5.25 O.042 0.032 O.025 O.035 4- 23 j 5.30 0.041 0.030 0.023 O.032 '

24 6.00 0.040 0.023 O.023 0.031 l l q 25 6.25 O.040 O.027 O.023 O.030 i 26 6.50 0.039 0.027 0. 02el O.031

} 27 6.75 l O.039 0.026 O.023 O.029  !

I 29 7.00 O.039 O.026 0.024 O.030 l f 29 7.25 O.030 0.026 O.024 O.029 l

} 30 7.30 0.037 0.024 0.021 0.027  :

) 31 7.75 O.037 O.024 O.022 0.02/  !

! 32 3.00 O.037 0.023 0.021 0. 0:?6 I

i I

! 5 I .

[

e i i t t i

O C-1

. L

$lW:lk ,

i i

I I i e

l CALVERT CLIFFS UNIT 1 ILRT LEAKAGE RATE (WEIGHT PERCENT / DAY)  !

MASS-POINT ANALYSIS l TIME AND DATE AT START OF TEST

345 0621 i 1

i ELAPSED TINE: 8.00 HOURS ,

l l

TIME TEMP FRESSURE CTMT. AIR MASS LOSS TOT. AVG. NASS I i

(R) (PSIA) MASS (LBM) (LBM) LOSS (LBM/HR)

545 542 .900 64.7686 644025.

600 542.928 64.7722 644028. -3.1 -12.5 615 542.963 64.7755 644019. 9.0 11.8

) 630 645 343.001 64.7799 644017. i.e 9.9 543.035 64.7804 643933. 34.6 42.0 i i 700 543.074 64.7868 643999. -16.6 20.4 I 715 543.099 64.7909 644010. -11.2 9. 5 I

730 543.142 64.7941 643992. 18.6 18.7 745 543.168 64.7980 644000. -7.9 12.5 800 543.200 64.0018 643999. O.4 11.3 815 543.225 64.8046 643997. 2.2 11.0 830 543.257 64.8081 643995. 2.4 10.9 845 543.290 64.8122 J 643996. -0.9 9.6 900 543.309 i 64.8152 G 915 930 543.338 543.357 64.0157 644004.

643974.

-7.9 29.8 6.5 14.5 l

64.8188 643982. -8.2 11.4 945 543.391 64.8240 64399" ~11.9 7.7 1000 543.414 64.8251 643979. le.2 11.0 1015 543.430 64.8300 644007. -29.2 3.9 1030 543.458 64.8314 643987. 19.7 7. 9 i 1045 543.488 64.8341 643979. 7. 8 9.0 1100 543.516 64.8376 643981. -1.8 8.3 1115 543.534 {

64.8408 643991. -9.4 6.2 1145 543.504 64.04U2 l 643976. 13.0 8.2 1200 543.603 64.5479 643977. -1.6 7.6 1215 543.623 64.8494 643969. 9.0 8.7 1230 l 543.647 64.5529 643970. -9 5 6.9 l 1243 543.66? 64.8342 643963. 14.4 8.7 1300 543.6G3 l 64.8567 643972. -9.2 7.3 i 1315 543.691 64.E598 e43994. -22.6 4.1 1330 543.717 64.8599 643964. 30.4 7.8 1345 543.733 64.8e33 eL3978. -14.4 5.8 FREE AIR VdLUME USED (MILLIONS OF CU. FT.) = 2.000 i REURESSION LINE INTERCEPT (LUM) = 644013.

l S_ OPE (LBM/HR) = -5.5 l MAX 1 MUM ALLOSELE LEfWABE RATE =

0.200

72. % OF MAX IMUM s'.LLOWMLE t.EAXAGE RATE =

0.150 ,

THE Ur-PER 95% CCNFIDENCE LIMIT e 0.026 i l THE CALCULATED LcAKAGE RATE = 0.021

... CONT. FREE AIR VOLUME AT TIME 1345 = 2000000. D-1

"*v*=-----

t i

1 i

i i

i CALVERT CLIFFS UNIT 1 ILRT

LEAF

AGE RATE C4EIGHT PERCENT /OAY)

{ TOTAL-TIME ANALYSIS  !

TIME AND DATE AT START OF TEST: 545 0621

}

I i

ELAP8ED TIME: 8.00 HOURS TIME TEhP. PRESSURE MEASURED '

(R) (FSIA) LEAKAGE RATE

---

_ = - -

l 545 542.900 64.7686 600 542.928 64.7722 -0.048 613 542.963 64.7755 0.043 l

! ,630 543.001 64.7799 0.036 l

! 645 543.035 64.7804 0.156 1 700 543.074 64.7G68 0.076 715 543.099 64.7909 0.035

! 730 543.142 64.7941 0.070 745 ['

}

543.168 64.7980 0.046 800 543.200 64.8018 0.042 815 543.225 64.8046 0.041 830 543.257 64.8081 0.040 845 543.290 64.0122 0.036 '

S 900 915 930 543.309 543.338 543.357 64.8152 64.8157 64.8188 0.024 0.054 {

i i 0.042 I 945 543.391 64.8240 0.029 [

'000 543.414 64.8251 0.041  :

I 1

1015 543.430 64.8300 0.015 [

l 1030 543.453 64.8314 0.029 1045 i 543.488 64.8341 0.034 i 1100 543.516 64.8376 0.031 i 1115 543.534 64.9408 0.023 '

1145 543.554 64.8452 0.030 l 1200 1 >

i 543.605 64.8479 0.028 1215 543.625 64.8494 0.032 1230 543.647 64.8529 0.026  !

1245 563.669 64.8542 0.033  !

1300 543.683 64.9567 0.027 l 1315 543.691 64.8598 0.015 l 1330 543.717 64.8599 0.029 l

! 1345 343.733 64.8633 0.C22 i l F

l l MEAN OF MEASURED LEAKAGE RATES =

0.037 l l

MAXIMUM ALLOWADLE LEAMAGE RATE  :

0.200 75 % OF MAXIMUP ALLOWABLE LEAKAGE RATE =

0.150 THE U?PER 95% CONFIDENCE LIMIT a 0.006 ThE CALCULA TED LEid: AGE RaiE -

0.02Z >

l D-2

.- il ~t -  ;

l ILRT

SUMMARY

DATA

, ILR T. DAT t

CALVERT SLIT'FG UMIT 1 ILRT OLf1AX " O.200 VOL = 2v00000.00 VRATET , 0.00> VRATEM = 0.C00 VGATEf = 0.000 TIME DATE TEMP PRE 85UTIE VF ;iS VOLUME

$45 621 SA2,90045 64.769603 0.36G30735 2000000.

600 621 542.92B28 64.772247 0.3e765021 2000000.  !

615 621 542.762.83 64.775459 O.3e842698 2000000.

4 630 621 043.00116 64.779877 O.36795835 2000000.

04 L- a21 543.U3191 64.780426 0,37042356 2000000.

700 621 543.0739/ a4.7E6751 0.36997431 2000000.

715 621 543.09919 64.790386 0.35791906 2000000.

730 621 543.1^215 64.794144 0.36864580 2000000.

745 621 543.16921 64,798042 O.36772794 2000000.

SCO 621 543.20026 64.801026 0.36792517 2000000.

815 621 543.22528 64.804596 O.36913453 2000000.

830 621 543.2567v 64.808128 0.36759490 2000000.

845 621 543.27022 64.812195 O.36750968 2000000. L 900 621 543.30846 64.815224 0.36746165 2000000.

915 l 621 543.33339 64.815742 0.36893243 2000000. '

930 m21 543.35699 64.818787 0.36087109 2000000 945 621 543.39062 64.823997 O.36764623 2000000.

1000 621 543.41364 64.825119 0.36851333 2000000. i 1015 621 543.43013 64.830025 O.36858612 2000000. ['

1030 621 543.43844 64.831413 O.3691G768 2000000.

i 1045 621 543.48'767 64.834122 0.36946145 2000000. I I

i100 62L li43.01350 64.837624 O.36894200 2000000.  !

l 1115 621 543.33301 64.840752 O.36/80632 2000000. i 1145 621 543.53356 64.845177 0.369554~/2 2000000.

1200 621 343.60469 64.847862 O.36865634 200C000.

1215 621 543.62300 64.8493G0 0.3691244; 2000000. t

} 1230 621 543.e4661 64.352913 O.36758173 2000000. l i

1245 621 543.66943 64.854187 0.36929494 2000000.  !

( 1300 621 543.68317 64.856651 0.3688165'2 2000000. I 1315 621 543.69073 64.859833 O.36762944 2000000. j i

1330 621 543.71741 64.859947 O.36950669 2000000.  !

1 J345 62: 543.73346 64.863297 O.36914332 2000000.  ;

i  !

1 l

I iO I

D-3

2. um .,

ILRT TEMPERATURE, R 542.60 542,80 543.00 343.20 543.40 543.60 543.80 544.00

+ _- _.__ .__ _-.._

4. ___. ___ 4._.._ _

._4._. __._.___-.e____ .-_

_4..______ _.u 1

+

i 600 - +

i i

I 4

i

+

! 700 - +

+

+

800 - +

+

+

+

900 - +-

4 -

m

~

+ l 4 l 1000 - -

+

+

i

+

1100 - + l

.p i

+

1200 - + i

.e  !

Cd +

-E +

1300 [ +

+

~

+

4 i,

I i

I O

ty r.  ; ec' E-1

1. :1 :. ; 2

ILRT PRESSURE, PSIA gh64.750 64.775 64.500 64.825 64.850 64.875 64.900 64 925 ky .p_.._._.___,___.___.p_.___._.____+-.

_._ _.. _ _ _ __ _ .< _ _._ _ _ _ _.._ _.r .- _ _ _ _ .e

+ l 600 - +

.+ l

+

+

'700 - +

~

+

+ ,

800 - +

+

+

+

900 - +

6

+

+

1000 - "-

1 -

+

~

+

1100 - +

+

A'

. 01200 -_- g i

+

H i -

+

3 1300 - 4

- t

+

1 +

4.'

S  : b~

_*e.9 l

l E-2

l ILRT I \

VAPOR PRESSURE, PSIA O.3650 O.3660 0.3670 O.3680 O.3690 0.3700 0.3710 C . 3724

,___________.+___._____+______.4._._._______+-__._____,____ _ _ ,_ _._ _ _._ _ _ _ ,

+

600 - +

u -

+

1

+

+

700 - v

+

+

+

j 800 - +

i -

+

+

900 - +

+

+

+

1000 - +

+

+

+

1100 - +

+

+

h 2OO -- +

- E +

N

- Ed + +

1300 - +

+

+

+

i 1

I i

e f-I E-3 i

, CALVERT CL 'FFS UNIT 1 ILRT -

ILRT

, RIRMASS

39n0.no 447950.On 643900.On 643950.00 644000.00 644050.00 644100.00 644150.00

+---------+------ .-+---------+---------+---------+---------+---------+

200 -

• l

+

+

300 - +

400 - +

+ ,

+ .

i son - +

+

e l

- START TEST +

600 - +

+

7nn - +

+

+

, 0On - +

f

+

+

900 - .

+

! 10nD - +

- + .

1 3

t inn - +

. i

- . i

~

! f i

12n0 ga .

i' x .

s f -H +

+

13n0 - +

j - .

4

- +  ;

f

+ i O i f .' a- j[ , g  :-- ' ">.

, wa >+ = _ ~u s - . . ., , . -.

_ -_ _ _ _ _ - _ . . __ _ _ _ . - _ _ . . _ _ , _ _ - _ , . . _ - . _ _ . ___m _,_,,,,__m...__-_- . . . - _ _ . _ ,__m_,m,, .__.~ ,,,,-- -

4 VERIFICATION

O TEMPERATUFiE , R 344.03 E44.10 34 4. T.O 544.31 544.41 544.51 544.52 5

,.________.__+_______._+._.__.______.r.____._.___e__..___+_-.__.._______'!4.72 .____..e i

+

.p

+

200 - +

+

~~

f )OO - +

+

4

~~

+

i 400 - +

~

+

.i -4..

W 500 - +

"~

t

~$ +

{ 600 - 4 +

i i

_s +

t i +

, +

.e

@ 700 -

4 l

J .

i

)

[ '" ,n' E-5 i

-_. _ _ _ - _ _ _ _ _ _ _ _ _ _ . . _ _ _ - - . - . __ _ . - _ . , - _ . . _ . . . , - . - - , . . _ - - - . _ . ~ . _ , . - - - - , _ - . , - - - - , . - , , , . , _ , - _ , _ , _ _ _ _ , - - - - , , . - - - ,

VERIFICATION l

PRESEURE , PSIA

, 64.900 64.903 64.906 64.909 64.912 64.910 64.918 64.921

+__._______________..p___..___.y_____.__.,_____._____+______t________.m

+

d y

j 200 - +

1 e

+

+

+

300 - +

c

+

+

400 - +

.y

+

+

500 - +-

+

+

600 H +

+

P

+

700 - +

i 1

I, E-6 et . .

___ - . - - . - . - - . _ _ _ . - _ _ - _ . . - - . . . . - . - - . ~ - - _ _ ..

--)

i l

VERIFICATION

VAPOR PRE 5?iURE,, PSIA j $

\IF O.3665 0 3678 9.3688 O.3699 0.3709 0.3719 O.3730 0.37-1 j +- . ___ .___ __ _____

3.___.__ __ +___ ___ ._+___.__..._ ._,._. __ ____+_____.____,

4

+

+

200 - +

4 s 4

+

3QQ - 3

+

+

i SQQ ~ .q .

+

t.

f 500 - +

+

+

wump l

600 - -H +

~

l +

i-Y

+

i 700 - +

i, p

i l

i 1

I i

l

n. u ,

E-7 s..-..,.

_. - . . - - . . . - - - . . - . . - . = . . - -- --_ _ . .-.-. ._ .. -- ..-. - - - - . ... - _-

4 1

i i

CAIVCOT CLIFFS UNIT 1 VEPIFICATION i VERIFICATION AIPHSS 9900.00 643350.00 643400.n0 643450.00 643500.00 643550.00 643600.00 643650.00

+---------+---------+---------+---------+---------+---------+---------+

+

+

+

l 1' 200 -

+

li l

300 - , +

l)

+ l 4nn - + .

1 i

+ i 4

+

+

i 500 -- +

+

+  ;

j

+

6nn - +

+  ;

w

-5

-H

+

+ i "nn - +

i l

4

?

i J ,

4 i

l, O

8 " s5 's N W.  % ',4. $ *>h "4h ., Ea* s _

. %9 -k r . 4c

O CF.LVEFJr CLIFFS UNIT 1 VERIFICATION LEAKAGE RATE (WEIGHT PERCENT / DAY)

MASE-FOINT ANALYSIS TIME AND DATE AT START OF TEST: 115 0622 ELAPSED TIME: 4.00 HOURS TIMt stMP FRESEURE CTMT. AIR r.: ASS LOSS TOT. WG. MF.8 5 (R) (PSIA) MAS 5 (LBM) (LBM) LD55 (LEM/HR) 115 544.370 64.9030 643619.

130 544.384 6".9034 643605. 14.2 56.3 l 145 544.393 c4.9059 643621. -15.5 -2.6 l 200 544.403 e4.9039 643509. 31.4 40.2 215 S44.418 64.9035 643567. 22.6 52.3 230 544.428 e4.9036 643556. 10.5 50.6 245 544.433 a4.9023 643537. 13.9 54.8 300 544.442 64.9040 643543. -3.9 43.6 315 544.461 64.9040 . 643521. 21.8 49.O 330 544.474 64.9052 643518. 3.7 45.2 34T 564.484 64.9047 643501. 16.G 47.4 400 544.505 64.9067 643497. 4.4 44.7 415 544.513 64.9069 643486. 10.9 44.6 430 544.525 O 445 500 544.547 64.9073 64.9069 643475.

e43447. 31.8 7.3 43.4 49.4 544.551 64.9077 643452. -5.6 44.6 515 544.566 64.9078 643435. 16.6 46.O FREE AIR VOLUME USED (MILLIONS OF CU. FT.) = 2.000 REGRESSION LINE INTERCEPT (LOM) = 643621.

SLOFE (LEM/HR) = -46.5 VERIFICATION TEST LEAKAGE RATE UPPEP LIMIT = 0.269 VERIFICATION TIST LED.l: AGE RATE LOWER LIMIT ' O . f. 69 THE CALCULATED LEEAEE RA TE -

O.17e CONT. FREE Aih VOLUHE A T TIME 515 = 2000000.

O F-1 ii

i f

I i

CALVERT CLIFFS UNIT 1 VERIFICATION LEAKAGE RATE (WEIGHT PERCENT / DAY)

TOTAL-TIME ANALYSIS TIME AND DATE AT START OF TEST: 115 0622 i ELAPSED TIl'E: 4.00 HOURS I

TIME TEMP. PRESGURE MEASURED (R) (PSIA) LEAKAGE RATE 115 544.370 64.9030 130 544.384 64.9034 0.212 145 544.393 64.9059 -0.010

, 200 544.403 64.9039 0.150

! 215 544.418 64.9035 0.197

} 230 544.423 64.9036 0.189 l 245 544.433 64.9023 0.204

300 544.442 64.9040 0.163 i 315 544.461 64.9040 0.183 l 330 544.474 64.9052 0.169 345 544.4G4 64.9047 0.177 400 l 544.505 64.9067 0.167 l 415 544.515 64.906S 0.166  !

430 544.525 O 445 544.547 64.907-64.9069 O.162 0.184

! 500 544.531 64.9077 0.16e

{ 515 544.566 64.9078 0.172 i i

! MEAM OF MEASURED LEAKASE RATES = 0.1a6 i

j VERIFICATION TEST LEAKAGE RATE UPPER LIMIT = 0.271 VERIFICATION TEST LEAKAGE RATE LOWER LIMIT = 0.171 THE CALCULATED LEAKAGE RATE = 0.181 1

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VERIFIFICATION

SUMMARY

DATA I

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CALVERT CLIFFS UNIT 1 VERIFICATION ALMAX = 0.200 VOL = 2000000.00 VRATET = 0.221 vRATEi1 = 0.219 VRATEP - 0.198 TIME DATE TEMP ?FESSURE VFRS VOLUME 4

113 622 544.36457 e4.703023 0.37020940 2000000.

j 130 622 544.38446 64.903366 0.36986855 2000000.

145 622 5 '! 't. 3 9 2 9 4 64.905945 O.36728704 2000000. .

200 622 544.40265 64.903931 0.36930203 2000000. '

215 622 544.41327 64.903511 0.37071612 2000000.

230 622 544.42834 64.903648 0.37058637 2000000.

, 245 622 544.43335 /.4.902336 0.37109105 2000000.

i 300 622 544.44202 64.903969 0.37125409 2000000.

315 622 544.46051 64.903976 0.37124801 2007000.

330 622 544.47375 64.905182 O.37103920 2000000.

j 345 622 544.48333 64.904694 0.37152770 2000000.

i 400 622 G44.50453 64.906723 0.37049419 2000000.

415 622 544.51453 64.906799 0.37041539 20000C0. 1 430 622 544.52509 64.907333 O.37087336 2000000.

i 445 622 544.54730 64.906769 v.37143505 2000000.

500 622 544.55056 64.907730 O.37047243 2000000.

3 515 622 544.56561 64.907837 0.37037212 2000000.

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ISG CALCULATIONS l A. Test Parameters T

La = .2%/ day leakage rate P = 65.2 psia containment pressure T = 543 *R weighted average absolute temperature I T 60*F dewpoint t dp == 8 hr. test duration B. Instrument Parameters

1. Total Absolute Pressure No. of sensors: 1 Range: 0-100 psia Sensitivity error (EP): .001 Repeatability error (ep): 0.0005 ep =i (EP)2 + (Cp)2 .000001 + .00000025

= ,

= 0.001118 psia No. of Sensors 1

2. Water Vapor Pressure No. of sensors: 6 Sensitivity error (E): .04*F Repeatability error (c): .01*F Dewpoint temperature: 70.2*F Vapor press'are: .365134 psia E py = i (.04) (.01257) = 5.028 x 10-4 cpy = i (.01) (.01257) = 1.257 x 10-4 e py =i (Epy)2 + (EPV) "

No. of sensors 1 5.028 x 10-4)2 + (1.257 x 10-4)2 = .000211587

3. Temperature No. of sensors: 18 Sensitivity error (E): .Ol*F Repeatability error (c): .003*F O

Dil-163 G- 1

eT= (ET ) + (CT) .0001 + .000009

= .0024608 No. of sensors 18 ISG = 2400 2 e_P P 2+2 [epv 2 +2 eh 2 -

8 qP) (P; T]

ISG = + 2400 2[1.118x10-3)2+2[2.1158x10-4}2+2[2.4608x10-3}2 .

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( 65.2

) ( 65.2 j 543

)

=+ 0.00765 %/ day

. 25 La = (.25) (.2) = .05 > .00765

Reference:

ANSI /ANS-56.8-1981, Appendix G O

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DH-163 G- 2

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<q APPENDIX H V LOCAL LEAKAGE RATE TESTING EVALUATION During refueling outages, local leakage rate testing (LLRT) is commenced at the beginning of the outage and completed in approximately six to eight weeks. The ILRT, if scheduled for  !

that outage, is conducted af ter the completion of the LLRT.

During the LLRT repairs and adjustments are made to some system which may change that penetrations leak rate. The term "As Found" indicates the leak rate before repairs and adjustment and the term "As Lef t" is the leak rate af ter repairs and adjustments. An evaluation of difference between "As Found" and "As Lef t" can give some indication of what the ILRT results would be if conducted prior to repairs and adjustments.

l Table i is a comparison of this data. Units of measured leak rate are standard cubic centimeters per minute (sccm). "OS" is the isolation valve outside containment and "IS" the inside isolation valve. In the " Difference" column "+" indicates add to ILRT results since leak rate decreased af ter repairs and adjustments, with a " " indicating the opposite.

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Penetration . Valve "As Found" "As Lef t" Difference 23 OS 280 169.3 + 110.7 47C OS 54 54 l

15 19.9 2.7 + 17.2 l 49B OS 33.4 33.4 0.0 IS 2.07 1.9 + 0.2 49C OS 54 54 IS 2.76 0.5 + 2.3 l l

47D OS 49.3 49.3 IS 40.78 1.6 +39.2 11 S/G Manways 100 706 120 50) -987.0 Total: 817.4 sccm During the Unit 11980 outage the total LLRT results was 151,668 sccm. Of this total,

(] 116,042 sccm was attributed to four electrical penetrations. These electrical penetrations (ZWB8,ZWC3,2EC2, and ZEC7) were replaced during the 1982 outage prior to the ILRT. No as lef t leakage rate data exists and the 1980 outage measurement is used as the as found data.

Four control valve had repairs and adjustments made prior to local leak rate testing.

Using the previous outage's as lef t data as the as found data, the leak rate was reduced by 95 sccm for the four valves.

Af ter adding these three categories together, the total difference between as found and as icit data was +115,319.6 sccm, which converts to .067 wt%/ day. Adding this amount to the upper 95% confidence limit for both the total time and Mass Point results, the total is 0.153 wt%/ day and 0.093 wt%/ day respectively. Therefore, Unit I containment f

em leak rate did not exceed the technical specification limit of 0.2 wt%/ day at the end of V

the last fuel cycle.