ML20134D381
| ML20134D381 | |
| Person / Time | |
|---|---|
| Site: | Point Beach  |
| Issue date: | 12/27/1996 |
| From: | WISCONSIN ELECTRIC POWER CO. |
| To: | |
| Shared Package | |
| ML20134D254 | List: |
| References | |
| 96-0278, 96-278, NUDOCS 9702050114 | |
| Download: ML20134D381 (27) | |
Text
X NUCLEAR POWER BUSINESS UhTT CALCULATION REN4E
/
NIMS c uiation # g_.3g RLE 77-l Number of Pages 7t 7affebedt Y Title of Calculation:
I
(/gggmtO A 55 M W d M ffuAe d b VSM b 1 (VT f% s f
K Original Calculation kQA-Se pe
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O Revised Calculation. Revision #
O Superseding Calculation. Supersedes Calculation #
d 4
Modification #
==
Description:==
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Other
References:
i Prened Bv:
Date:
I1 f%
This Calculhon has been reviewed in accordance with NP 7.2.4. The review was accomplished by one or a combination of the following (as checked):
}
A review of a representative sample of repetitive A detailed review of the original calculation.
- I calculations.
A review of the calculation against a similar A review by an alternate, simplified, or calbulation previously performed.
approximate method of calculation.
Comments: 4 1
9702050114 970122 !T PDR ADOCK 05000301-J P
- PDR, i
Reviewed D
- Date:
Approved Ev:
Date:
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DEC 3 0 Revision 1 02/27/9;i i
I
TITLE: Uncsttrinty Associstsd with CALCULATION # : 96-0278 instrumentation Used in Prepared By: EJM IT-17 & IT-18 for BAT Pumps Date:12/17/96 Page I of 7 A. Purpose The purpose of this calculation is to determine the uncertainty associated with the instrumentation used in inservice test procedures IT-17 & 18, for the boric acid transfer pumps, (reference 2). The final uncertainty value must include a combination of the uncertainties for all the instrumentation used in the test that will have an impact on the ability to measure the IST acceptance value during the test performance f'r comparison to the design basis acceptance value.
B. Method Instrument uncertainties will be calculated for the instruments used in the boric acid transfer pump Inservice Test procedure IT-17 and IT-18, (reference 2). These inservice tests determine the developed head across the boric acid transfer pumps (1&2P-4A&B) by adjusting the pump flow to 40 gpm t0.5 gpm by throttling valves 1HC-105 and 1BS-344 (or HC-104 and BS-329 if T-bB is aligned to unit 1). Once the correct flow value is achieved, the suction and discharge pressures are measured and the total developed head across the pump is determined. This value is compared to the boric acid transfer pump acceptance criteria.
This calculation was performed on the unit 1 instrumentation, however the results are also applicable to unit 2.
C. References 1.
Boric Acid Transfer Pump operability determination, 10/1/1996.
2.
PBNP inservice Test, IT-17 and IT-18, " Boric Acid Transfer Pumps and Valves (Quarterly)"; Unit 1, Revision 7, November 15,1996; and Unit 2, Revision 6, November 15,1996.
3.
MR 91-133, install permanent instrumentation to allow inservice testing for boric acid transfer pumps, accepted 4/29/1993.
4.
Rosemount Model 8712C Magnetic Flowmeter Transmitter, Component instruction Manual control #01479, dated November 1991.
5.
Technical Specification Table 15.3.2-1, " Boric Acid Storage Tank (s) j Minimum Volume / Temperature / Concentration", dated December 12,1994.
6.
PBNP instrumentation and Control Procedures, ICP-6.41, "Three Year Calibration on LocalInstrumentation," Rev 7, August 27,1996.
7.
DG-101 " Instrument Setpoint Methodology", Revision 1, September 12, 1995.
8.
Perma-Cal direct drive test and process gauge, component manual, dated 2/94. (selected pages attached) 9.
Ashcroft Pressure, Ternperature, Control, Instrument Ordering Handbook, Duraguage Pressure Guage Section, I&C library. (selected pages attached)
~ _. - _. - -.
l l
TITLE: Uncerttinty Associatsd with CALCULATION # : 96-0278
~
Instrumentation Used in Prepared By: EJM l
IT.17 & IT-18 for BAT Pumps Date:12/17/96 Page 2 of 7
- 10. Duke Engineering & Services letter to WE, "SI Pump IST Flow Test Uncertainty Evaluation", September 25,1996.
- 11. WE Calculation 96-0191, " Minimum Allowable IST Acceptance Criteria for St Pump Performance", dated 9/25/1996.
- 12. WE Calculation N-94-008, New Tech Spec Minimum Volume and Temperature Requirements for Boric Acid Concentration Reduction, February 23,1994.
D. Assumptions 1.
The temperature effect on the instrumentation will be assumed to be negligible as the trarismitters are calibrated and used in essentially the same temperature environment.
2.
The acceptance criteria for the BAT pumps is between 15 gpm, (reference 1), and 40 gpm, the point at which the pumps are currently being tested in the Inservice Testing program, (reference 2). The method to convert an error from gpm to psi, as accepted by Duke Engineering (reference 10),
requires determining the slope of the pump curve at the point of interest.
The pump curve for the boric acid transfer pump (from reference 1) is attached. As can be seen from the curve, the slope of the purrp curve is more negative at 40 gpm than it is at 15 gpm, or at any point oetween 15 and 40 gpra. Using the slope at 40 gpm to determine the conversion factor between gpm and psi will result in a conservatively high error term that will bound any acceptance value between 15 gpm and 40 gpm.
3.
The pressure indicators are assumed to be near the pipe centerlines, and any elevation difference between the instruments and the pipe centerlines will be ignored.
4 The velocity head developed by the pump is ignored.
I 5.
If manufacturer's data was not located, uncertainties associated with drif t of an instrument have been assumed to be the smaller of either 0.5% of l-full scale, or the instrument calibration tolerance. This value (0.5%) is based on engineering judgment of the maximum expected drift between calibrations for the instrumentation involved. Alternatively, the calibration accuracy is used if smaller, because instrumentation found regularly out of calibration are typically either repaired or replaced.
q l
6.
The M&TE error is assumed to be the smaller of either 0.5% of the l
instrument range, or the calibration tolerance, for all IST instruments. This value (0.5%) is conservative based on the research performed for i
f Calculation 96-0191, " Minimum Allowable IST Acceptance Criteria for SI l
Pump Performance" (reference 11). The calibration accuracy is used if
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TITLE: Uncuttinty Associttad with CALCULATIOM # : 96-0278 Instrumentation Used in Prepared By: EJM IT-17 & IT-18 for BAT Pumps Date:12/17/96 Page 3 of 7 smaller because it is the practice of l&C to use a calibration instrument which is at least as accurate as the instrument being calibrated.
E. Inputs For this calculation, the total uncertainty associated with the instrumentation used to perform the IST test must considered. Contributors to this total uncertainty include:
Instrument (transmitter & indicator) accuracy Indicator readability j
Repeatability & Sensitivity e
- Tolerance Drift L
F. Instrument Uncertainty Determinations 1.
Instrument U 1 certainties for FT 185, P-4A/B BA Transfer Pump Flow i
Transmitter, Rosemount Model #8712CR12M4, Range 0-100 gpm l
- a. Instrument accuracy: The system accuracy, with the Model 8701 flowtube (which is installed per champs record) is 0.5% of rate from 1 to 30 ft/sec (reference 4). From Mod Request 91-133, (reference 3),
the rate is approximately 3.51 f t/s, thus this is the correct accuracy l
value to use. Since the measured value in IT-17 and IT-18 (reference 2) l is 40 gpm, the accuracy is:
0.5% x 40 gpm, or 0.2 gpm Based on telecon with Jennifer Yeatts, of Rosemount Technical Service on 12/16/1996, this accuracy is the combined accuracy of the flow j
measuring device (Model 8701 Magnetic Flowmeter Flowtube) and the transmitter.
l
- b. Calibration Setting Tolerance: This instrument is not presently being calibrated. This failure to calibrate is being accounted for as an increase in the assumed drif t, thus no error for calibration tolerance is calculated.
- c. Drif t (transmitter stability); 10.1 % of rate over 6 months. (reference 4)
The instrument was installed in 6/93, and hasn't been calibrated in 3 1/2 years. In order to account for an assumed linear drift until the calibration of the instrument can be initiated, it will be assumed that the instrument could drift in a linear fashion for 5 years. This would rapresent an error of:
l l
TITLE' Uncertainty Associttrd with CALCULATION # : 96 0278 instrumentation Used in Prepared By: EJM IT 17 & IT-18 for BAT Pumps Date:12/17/96 l
Page 4 of 7 l
+0.1 %
40 gpm =
0.4 gpm x
5 years x 0.5 years l
- d. M&TE (Instrumentation uncertainty due to calibration); This instrument is not presently being calibrated. This f ailure to calibrate is being accounted for as an increase in the assumed drift, thus no error for M&TE is calculated.
e.
Repeatability; O.1 %, or 0.04 gpm (reference 4) 2.
Instrument Uncertainties for 1-PI-108, Boric Acid Filter inlet Pressure, Perma-Cal model #111TIB23A21-V, range 0-160 psig, a.
Indicator readability; minor divisions at 2 psi, thus the meter can be read to 1.0 psi. (reference 8)
- b. Instrument accuracy, 0.5% of full scale (160 psi) or 0.8 psi, (reference 8). Also repeatabiltiy of 10.01 % (0.016 psi) and Sensitivity of 0.01 % (0.016 psi) (reference 8) l
- c. Calibration Tolerance; The as left tolerance for the instrument is 1.0 psi. (reference 6)
- d. Drift; assumed to be 20.5%, or 0.8 psi, (assumption 5) e.
M&TE (Instrumentation uncertainty due to calibration); assumed to be 0.5%, or O.8 psi. (assumption 6) 3.
Instrument Uncertainties for 1-PI-184,1P-4A Suction Pressure, Ashcroft model #45-2462SS-02L-160#, range 0-160 psig.
a.
Indicator readability; Based on plant walkdown, the smallest division is I
1 psi, thus indicator readability would be 0.5 psi
- b. Instrument accuracy, 0.5% of full scale, 0.8 psi (reference 9) c.
Calibration Tolerance: The as lef t tolerance for the instrument is 1.0 psi (reference 6)
- d. Drift; assumed to be 0.5%, or 0.8 psi, (assumption 5) e.
M&TE (Instrumentation uncertainty due to calibration); assumed to be 0.5%, or 0.8 psi. (assumption 6)
G. Determine Conversion Factor for Boric Acid Solution The boric acid transfer pumps can transfer a solution with a concentration of boric acid as high as 12.5% by weight. This boric acid solution is more dense t' an water, thus the actual assumed density for boric acid must be n
used when determining the conversion f actor from feet to psi. Calculation N-94-008, (reference 12) calculated a density of 12% boric acid solution to be 1.0293 kg/l at 170 F. This calculation also stated that the density change due to temperature change should go as it does for water. In order to determine the maximum density of the 12.5% boric acid solution at the
j TITLE: Unczrttinty Associatsd with CALCULATION # : 96-0278 l
Instrumentation Used in Prepared By: EJM I
IT-17 & IT-18 for BAT Pumps Date:12/17/96 Page 5 of 7 j
minimum allowed Technical Specification temperature of 145 F, (reference
- 5) it is necessary to ratio this density value by the change in density of water between 170 *F and 145 F.
1 i
1.0293 kg 55.37 lbm / f t (p 145 F) liter 2.2046 lbm 3
x x
x
= 64.78 lbm / f t liter 54.91 lbrn / f t3 (p 170 F) 0.03532 ft kg l
To develop the conversion f actor calculate the equivalent number of feet for the column height (h) of fluid corresponding to a static pressure of 1 psi.
Static Pressure = (Density of fluid)(Gravitational acceleration) (column height of fluid)
Solving for the column height of fluid (h):
Static Pressure (Density of fluid) (Gravitational acceleration) l l
2 2
2 2
h = 1 lbf /in (32.17 f t Ibm / lbf s )(144 in /ft 3 64.78 lbm/ft (32.17 ft/s )
j h =2.223 ft The column height of the pump fluid equiv7'ent to a static pressure of 1 psi is therefore, 2.223 ft.
H. Calculation The uncertainties of the Inservice test instrumentation have been deterrnined above, and will be combined using a systematic method established in reference 7 and reference 10. This best estimate or realistic approach combines uncertainties using the statistical square root sum of squares (SRSS) method.
This uncertainty value will be added to the design basis charging pump flow requirement and this will become the IST design basis limit, and will be used as an acceptance value for the charging pumps, a.
Uncertainty associated with Pl-108 (see Section F.2) h(1.0 psi)# + (0.8 psi)# + (1.0 psi)# + (0.8 psi)2 + (0.8 psi)2 + (0.016 psi)# + (0.016 psi)#
U108
=
1.98 psi U108
=
- b. Uncertainty associated with PI-184 (see Section F.3) l
4 1
TITLE: Uncsrttinty Assoclitzd with CALCULATION # : 96-o278 9.
Instrumentation Used in Prepared By: EJM
(
IT 17 & IT-18 for BAT Pumps Date:12/17/96 Page 6 of 7 U184 = ' /(0.5 psi)* +(0.8 psi)# +(1.0 psi)# +(0.8 psi)2 +{g g nsj)2 I
[
.U184 =
1.78 psi I
c.
Uncertainty associated with FT-185 (see Section F.1)
. h(0.2 gpm)# + (0.4 gpm)# + (0.04 gpm)#
U185
=
U185 0.45gpm
=-
In addition, there is an uncertainty associated with the t 0.5 gpm tolerance allowed for setting the pump flow (See section B.).
This error will be I
added to the instrument uncertainty.
U185 (total) 0.45 gpm 0.5 gpm = 10.95 gpm
=
i.
The uncertainties associated with FT-185, in gpm, must be converted to an equivalent uncertainty in psi in order to combine the flow uncertainty with those associated with the pressure instrumentation. Therefore, the pump curve at the test point (40 gpm) was used to approximate an associated change in developed j
head due to a change in flow (assumption 2). A tangentialline to the pump l
curve.was drawn at the testing point from which a slope (psi /gpm) was obtained to convert the uncertairity in gpm to an uncertainty in psi. This method has been determined to be an acceptable approach and has been evaluated independently by Duke Engineering Services. (reference 10) e The two points taken off the tangentialline to develop the slope were 35 feet at 60 gpm, and 215 feet at 30 gpm. The slope is calculated below and the l
conversion from feet to psi used the factor developed in Section G.
215 f t-35 ft psi'
= -6 ft / gpm x
2.70 psi / gpm m
30 gpm - 60 gpm 2.223 ft 2.70 psi U185 = 0.95gpin x 2.57 psi
=
gpm s
Now that the units of the individual uncertainties are consistent, the total uncertainty associated with the instruments used to test the SI pumps can be i
calculated via the SRSS method.
i i
- d. Combining the uncertainties from these three instruments gives the
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following for total uncertainty:
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TITLE-Uncsttiinty Associsted with CALCULATION # : 96-0278 Instrumentation Used in Prepared By. EJM IT.17 & IT-18 for BAT Pumps Date:12/17/96 Page 7 of 7 Ig(U185)2 + (U108)# + (U184)2 Utotal
=
h(2.57 psi)2 + (1.98 psi)# + (1.78 psi) #
Utotal
=
Utotal = i 3.70 psi H.
Results The total instrument uncertainty associated with the inservice test procedure for the boric acid transfer pumps is 3.70 psi l
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DUt'8g3Ugg AW The Asnerofte Duraguage* Pressure Gauge is tne finest production gauge on the market for industrial use where prectse indications are required. Tha line offers a wide
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ranges to meet any conceivable application.
With the component combinations availat)le in the g
Duragauge Gaugeline over a million vanations are poss.ble to serve the needs of all types of industries, M
including process, power, chemical, petrochemical, pe?.roleum, nuclear, aerospace, and cryogenics.
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h Several important variables mnt be considered when j
selecting the type of case for the applicatjort. A gauge is
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subject to environmental and atmosphenc cuftditions, and the gauge internals must be protected from these elements.
All Duragauge gauges have so!id front cases which Type 1279 provide maximum safety for all gauge tocations, type of processes. or medmms being monitored. Viewing ease
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and readabtitty from a d stance will determine the ois!
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Type of mounting - stem. su rface or flush -is 2500 important, as is tne pressure connection location.
lower or back.
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General enaracterrstics of case style are described f
briefly here Type 1279 j
Black phenol turret design Integrally monded threads l
front and back of gauge. Ring threaded. glass filled 1
Typ 1377 polypropylene, back cover polypropylene with stainless l
steel screw Available with lower or back connection.
30 j
g 35 Can be fie!d converted to hermetically sealed or liquid 20 filled versions. Stem or surf ace mounted; can be flush i
g panet mounted with an accessory rmg.
W Type 1377 i
0 Aluminum case. Steel ring hinged at top, retained by a 55 Clamp screw at the bottom. Case and r np stre black
{g epoxy coated. Flush mounted, back cort a ction only, j
Type 1379 Aluminum case, threaced aluminum nng (bronze in 8%"). Case and ring are black epoxy coated. Sism or surf ace mounted Wide flange flush mounting ring j
supphed on back connected gauges-i l
Type 1379 Type 2462 Polypropylene. fiberglass reintorced, black. Bayonet l
gg lock polypropylene ring. Features 6" deal readability ill j
g using 4%" internals. Available for stem, surface, or f!ush
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1220 PI,enolic (4 %*. 61650 Pressure. Vacuum. Compound 1187* A!um. Threaded 1188* Phenolic e
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Pressure. Vacuum. Compounc
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Acphca' ions Maurnum accuracy usage recuinng nigh Generalindustrtal appbcations v
industrial and accura;y in Chem' Cal.
such 85 boile's pumps laDoratory uses petrochem Cal. refinery, coirpressors, machinery.
oil production, ott'er process a9d enemical plants Droct$s power.and power plants pulp and paper Qenef 8! todustry
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1279(*TA)S Back WNPT w/1278M Ring 0/2000 psi
- 1. Dial Stze - Taele A j
- 2. Case Type Number - Table A --
- 3. Bourdon Systern (*) (ordenng coce) - Table B
- 4. Connection: Location-Table A. Size-Table B S Mounneg Accessory or Vanation (if requirec) -
Taele A
- 6. Range - Tabfe C
- 7. Accessones and Optional Featur r-pages TABLE A-CASE SELECTION M
Case:, Material True Ring Meter 6el Montmg and Connecten Nurnber Diel stre - en.
Case $tyle Finhh 1279(*)S** 4W Solid Front Phenol Threaded Stem-Lower of Back 91ack Reinforced Surface - Lower or Back Polypropylene Flush - Back: order Black 1278M ring.
1377(*)S 4%, 6. 8'!2 Solid Front Aluminum Hinged Flush - Back c innection Black epoxy coated Steel only Black wrinkle enarnel coated 13T9t *)S 4 '/2, 6. 6 W Solid Front Aluminum Threaded Stem - Lower or Back Black epoxy coated Aluminum: 4 W. 6 Surface - Lcwer or B.te.k Bronze: 8W Flush - Back Black epoxy coated 2462r) 6 Solid Front Polypropylene BeyonetLock Stem -Lower or Back (fiberglass reinforced)
Polypropylene Surface-Lower or Back.
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TABLE B - BOURDON SYSTEM SELECTION Bourdost Tube Tube and T:p Metenal Type:
Ord wing tallioirits TIG Socket Drawn or Pressure Range Code welded except "A ')
Metenal Gored (F31)
NPT ConnectivnN Grace A Phosphor Bronze TuW A
Brass Drawn 12/1000 Brass T!p.
AISI 1019 steel Drawn 12/1000
'h gy AISI 1019 steel Bored 1000/20 000 W
AISI O 30 D
AISI 316 Orawn 100.000(2)
% hign pressure ancy steef stainless steel (spirat)
Hower conn. only) hf'n R
AISl 1019 steet Drawn 12/1000 Meel AIS1316 st st.
tu RT AISI 1019 steel BW N20M A 1019 steel tip AISl 316 Al$1316 g
Orawn 12/1000 stainles s steel stainless steel Bored i 1000/20.000 l
W A!S1316 Alsl 316 TA Drawn 30.000/80.000 (2) < % hign pressure stainless steel stainless steel g,g,rau i
P K Monel A Monet (3)
Orawn 12/1000 W
Q K Monet i
R Monel(3)
Bored 1000/20,000 l
W m ooemai connectans avansow w pr em wf is arsacare (2) M M0-80 000 pai avoiinew.es s" io er a bacii aN s 4" baca carinection oniy type 1377137s send treat cases. t00.000 pse avaslacie in 6" lowor connecbon only Type 13r9 solNI fwt case.
(31 f or topikssone **ere NACE stenosre MA-oi-rs is soecined tt.e sockat mmenad entt be Mar + ago,
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Perma-Cal Direct Drive Test and Process Gauges i
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Specifications Proof Pressure without calibration shift 150% of F.S. pressure'
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Burst Pressure 500% of F.S. pressure 2 V
Wetted Parts inconel X 750,31655,30455 and silver braze. For other options, consult factory.
Media Temperature
-65* to +250*F Ambient Temperature
-65* to +190'F NOTE S-Response Time Approx.100 msec to F.S.2
' t 5% of F.S pressure. 8,000 PSI and above Life 250,000 cycles min.,20%-80%
- o;, 25.000 psi. wh chever is iesi l
full scale on ranges below 3ca, operanon with no coa darnpen,ng.
3000 psi.
'Specified accuracy inciudes ali tr.ctxxi error,hysieresis and finearety varations.
f 4
1 Accuracy
'on 8.000 PSI and abo-A accuracy es e 1/4%
Grade 3A i.25% full scale, F.5. ascending and e 1% F.S. descending.
i Grade 2A i.5% full scale acaiierat.on in other enounnng pos,,,ons l
1/2% M.S.
1% full scale,.5% mid scale avadabk upon reovest.
Repeatability & Sensitivity
.01% full scale 3
Calibration Vertical mounting standard' t
,,c,,
j TURRET CASE o oiA. s Hotr.s j
/ soIIciRets s
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-.o PANEL WRENCH SIZE CAUCE SIZE A
B C
D E
F G
H OPENING (HEX)
(R EF.)
8%* Flange 1%
2Vu 6W 1W 9%
10 %
vu SW 9
6* Flange 1%
2W 654 1W 7
7%
W SW 6%
'q G
4%* Flange 1%
2Vu 4%
1W 5%
6 W
4%
4'5h 4%* Turret 1W 2%
5%
1W 5%
5%
4%
N.A.
3%* Turret 1W 2%
4%
1W 4%
3%
4%
N.A.
2%* Flange 1%
2W 2M 2%
3%
3%
%2 3W 2'h N A-3
l-j How to order To order a Perma. Cal EXAMPLE:
gauge with the exact OPTION SECTION: A B C D E F GH I J-K specifications you require, PART NUMBER: 1 0 1 F T M XX Y 0 1-y simply go through the eleven blocks of options Product type: Pressure Cauge j
listed below and note one Accuracy: %% full-scale option ccide for each Dial size: 4M" specific feature you need.
In section "K," you may Case type: front flange select none er as many as Pointer type: test desired. Write the option Dial trim: mirror band and zero adjust dial codes down m order and you will have created the Pressure range: specify pressure range actual part number for the or see Bulletin T-103 for pressure codes gauge you desire. See Case color: yellow example.
Fitting position: back Fitting type: %* NPT Misc. options: Model 400 Viton isolator installed OPTION FEATURES O.
1 Pressure Cauges' PRODUCT A TYPE 2 Seawater Depth Cauges -
0 %% Full scale (8M7 67 4M* and 2M*: calibration certification inct)
B ^ccun^cv i M%ruiix
- w 4M:3M aad2M diaisi 2 1% Full scale, M% Mid scale (67 4M7 3M"and 2M* dials) 8 BM-inch (zero adj. dial incl) 0 6-inch (zero adj. dialinct)
DIAL SIZE
/
O, 2 3M-inch (zero adj. dial not available; zero adj. pointer incl)
~ '
3 2M-inch (zero adj. dial inct on test gauges; opt't. on process gauges)
F Front flange (8M.* 67 4M"and 2M*only)
R Rear flange (6"and 4M"only)
Solid front safe case D CAStTvrt N No,ian,e,674M and 2M oniy) standard on aii modeis.
T Turret (4M* and 3MI)
I Process (bold, easy-read' g)
E POINTER e
TYPE
- T Test (knife edged, precision reading)
Dial Size Mirror Band Zero AdL Dial DIAL M 2M74M7678M*
Yes Yes F TRIM D
2%73%*4M" No No B 2M7 4M7 6' No Yes Specify pressure range and units of measurement, Le., PSI, Pascals, Bar, etc. or G PRESSURE g
RANCE' see Bulletin T-103 for pressure codes.
A Black R Red H COLOR
= siue w white G Creen Y Yellow Rear I
FITTING
/
_,,0 POSITION 2 %ttom il o' dock position) 1
%* NP".'
6 MS 33649E4 FITTING 3
M* NPT 7
%" Aminco J TYPE 4 MS 33514E4 8 MIL C 18997 5 MS 33656E4 9
%*BSP C Calibration certificate (not apropos on %%)
O Orygen deaned and capped E.
EPDM isolator installed V Viton isolator installed K MISC.
OPTIONS H Helium leak test (pressurized immersion)
Z Aluminum case
)
Jewel Bearing N NicobrazeW-4
CR 9h
- M OPERABILITY DETERMINATION Degraded or potentially nonconforming equipment:
1.
IP4A, IP4D,2P4A,2P4B, Bonc Acid Transfer Pumps 2.
Safety function (s) performed:
He boric acid transfer pumps are not safety related and are not relied upon to mitigate the consequences of a design basis accident.
When the Boric Acid Transfer Pumps (BATP) are relied upon as a source of boric acid for one unit, they shall deliver boric acid solution to the charging pumps to bring the unit to cold shutdown with the required margin at any time during core life, assuming that the most conservative control rod is stuck in the fully withdrawn position.
The BATPs shall supply concentrated boric acid to the charging pumps as required to establish and maintain shutdown margins and to compensate for slow changes in reactivity associated with normal power operation.
3.
Circumstances of potential nonconformance, including possible failure mechanisms:
Condition Renort 96-416 identified a potential concern for adequacy of the IST program to ensure that pumps meet design basis as well as ASME Section XI requirements. This evaluation supports determination of operability pending completion of detailed analysis 4.
Requirement or commitment established for the equipment, and why it may not be met:
Technical Specifications Section 15.3.2 provides the design basis for CVCS control of RCS Boron inventory. The boration volume available through any flow path is sufficient to provide the required shutdown margin at cold shutdown, Xenon free conditions from any expected operating condition. The maximum volume requirement is associated with boration from just critical, hot zero or full power, peak xenon with control rods at the insertion limit, to xenon free, cold shutdown with the highest worth control rod assembly fully withdrawn.
FSAR Section 9.2.1 States that the boric acid transfer pumps can supply design rated flow (which is 40 gpm)at the VCT relief valve set point (75 psigl j
IST acceptance criteria may not be conservative when compared to design basis criteria.
5.
How and when the potentially nonconforming equipment was first discovered:
Ris generic concerr. was first identified in June 1996 as a spwific concern for safety injection pump acceptance criteria from ASME Section U versus design requirements ti.
Basis for declaring affected equipment operable:
Calculation P-93-014 was performed to show that for a typical cycle, assuming worst case conditions, the reactor can be maintained suberitical following a reactor trip. Specifically, the amount of negative reactivity that can be inserted by one charging pump borating at a minimum speed (15gpm) using the refueling water storage tank (RWST) as the suction source is greater than the positive reactivity added from the decay of xenon. Calculation P-93-014 showed that at a rate of 15 gpm from the RWST that the intent of tech spec 15.3.2 for maintaining shutdown margin has been satisfied. De calculation did not look at the capability of the boric acid storage tanks ability to provide shutdown margin. He RWST is more limiting for a minimum flow requirement than the Boric acid storage tanks as the boric acid concentration is maintained higher in the boric acid storage tanks than the RWST. Conservatively assuming that one BATP needs to supply 15 gpm to maintain shutdown the IST program is conservative as it tests the pumps weU above this capability. The pumps are tested by setting flow at 40 gpm in a recirc mode and measuring differential pressure or developed head. The worst case pump 2P4 A provides 40 gpm at 77psid (see attached IST data). This falls above the pump curve develope.d by Westinghouse in calculation RFS-W-960 when the pump had a 19/32" orifice plate installed in 1971. Followmg the curve neglecting that the pump is actually operating above the curve the pump would provide 15 gpm at 245 ft hd or 105 psid. The VCT relief valve setpoint is 75 psig so the pump develops adequate flow and discharge head to meet the desh basis requirements at maximum operating pressure of 75 psig. 2P4A is the most limiting pump thus all of the boric acid transfer pumps are capable of meeting the design basis and are considered operable. (see attached IST data for all BATPs)
PBF-1553 Revision 0 06/24/94
~........
._-_....__.m..
- _ _ _ _ _ _ - _. -. _ _ ~. _ _ _ _ _ _ _. _.
Note: There is a open condition report 96-598 concerning a statement in the FSAR. The FSAR states that the BATPs can provide design flow at the VCT relief valve setpoint. The relief valve setpoint is 75 psig and the boric acid transfer pump design flow is 40 gpm. The.9" discharge orifice on the valve was replaced in the early seventies with a 19/32" orifice. This limited the design flow of the pumps to 40 gpm at 60 psig VCT pressure reference Westinghouse Calc RFS -W 960. The FSAR was never updated to reflect this change. Dere is no design basis or accident analysis that was found which requires the BATP to provide 40 gpm at maximum VCT pressure.
/o[//f/
Prepared By:
Date:
Approved By:
Datei /.,?///fg WS Manager f f Reviewed By:
Datc:
M//(7t(
l I
i i
i PBF-1553 '
Revision 0 mm T- - +
_._.._..._m._.______
i i
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Pump Reference
{
- PRESSURE TEST **
Values and Limits l
Date Established:
9/20/96 l
' Pump #: 2P4A IT-018 Entered By: LEH Reference Values Reference Pressure:
77.00 psig Flow:
40.00 gpm l
Reference Vibration Motor End Pump End 1
Point C:
.101 ips Point A:
.109 ips Point D:
.080 ips Point B:
.046 ips Point E:
.071 ips N
Acceptable Range Pressure:
71.60 psig to 78.50 psig Vibration Motor End Pump End Point C: s
.253 ips Point A: s
.272 ips Point D: s
.200 ips Point B: s
.116 ips i
Point E: s
.177 ips
~
Alert Range Low Pressure:
69.30 psig to 71.60 psig High Pressure:
78.50 psig to 79.30 psig Vibration Motor End Pump End Point C:
.253 ips to
.608 ips Point A:
.272 ips to
.654 ips i
Point D:
.200 ips to
.481 ips Point B:
.116 ips to
.278 ips l
Point E:
.177 ips to
.425 ips Required Action Range Low Pressure:
69.30 psig High Pressure:
79.30 psig Vibration Motor End Pump End Point C: >
.608 ips Point As >
.654 ips Point D: >
.481 ips Point B: >
.278 ips Point E: >
.425 ips Comment: New reference values established due to pump rebuild.
.~,, _. - - ~ ~ -. - - - _ - - ~ -., - - ~
~..---.n~~--.--..a.--
-u - ~.~ -,.
d TEST DATA FOR ONE PUMP 9/23/96 Page 1
' Pump 2 P4 A j
Tests 018 Pressure Test j
l Vibrations (1ps) d 4
3 Test Date Diff P A
B.
C D
E Int Remarks i
j 9/23/92 76 9/23/92 76 BAT ROUTINE SURVEI11ANCE 11/08/92 77 11/08/92 77 LEN ROUTINE EURVEZILANCE 11/14/92 76 JAH NOD 91-133 'IGST 1/05/93 75
[
1/05/93 75-LEH ROUIINE SURVEZILANCE 3/16/93 80 i
6/16/93 79 9/18/93 80 12/17/93 81 6/19/94 81
.172
.063
.239
.119
.119 KRN ROUTINE SURVEILIANCE 9/16/94 81
.174
.061
.384
.246
.112 LEH ROUTINE SURVEILLANCE 12/18/94 87
.184
.078
.401
.235
.099 LEH ROUTINE SURVEILLANCE
{
4/37/95 85
.233
,079
.432
.281
.095 BAT INCREASED FREQUENCY l
6/16/95 88
.233
.079
.432
.281
.095 IJtD ROUTINE 9506566
)
t 7/29/95 89
.203
.072
.445
.171
.090 LRD INCREASED FREQUENCY l
8/29/95 93
.304
.072
.442.
.244
.114 LEH INCREASED FREQUENCY 9/16/95 89
.213
.085
.410
.199
.104 LEH Rot / TINE SURVEILLANCE I
11/12/95 88
.214
.077
.480
.153
.111 LEH INCREASED FREQ, 2P4A 12/16/95 84
.195
.113
.361
.146
.100 LEH ROUTINE SURVEILLANCE 1/27/96 82
.267
,001
.348
.197
.155 LEH INCREASED FREQUENCY r
3/16/96 83
.246
.076
.343
.172
.109 LEH ROUTINE SURVEILIANCE 5/06/96 83
.188
.001 378
.142
.108 LEH INC3 TEASED FREQ. 2P4A 6/16/96 80
.218
.082
.382
.142
.097 IJtD RotTTINE SURV., 96062 7/27/96 40
.294
.066
.371
.371
.300 LEH INCREASED FREQUENCY 9/20/96 77
.109
.046
.101
.080
.071 LEH ROUTINE, WO 9602246, L
f
_ ~.
l.
f 1
l Pump Reference i
- PRESSURE TEST **
Values and Limits Date Established: 12/18/94 i
Pump #: 2P4B IT-018 Entered By: DEK Reference Values l
Reference Pressure:
85.00 psig Flow:
40.00 gpm
{
t Reference Vibration Motor End Pump End l
l Point C:
.183 ips Point A:
.111 ips i
Point D:
.067 ips Point B:
.029 ips l
Point E:
.076 ips i
Acceptable Range
{
Pressure:
79.05 psig to 86.70 psig Vibration Motor End Pump End Point C: s
.325 ips Point A: s
.278 ips Point D: s
.168 ips Point B: s
.073 ips Point E: s
.190 ips Alert Range i
Low Pressure:
76.50 psig to 79.05 psig High Pressure:
86.70 psig to 87.55 psig Vibration Motor End Pump End Point C:
.325 ips to
.700 ips Point A:
.278 ips to
.666 ips Point D:
.168 ips to
.402 ips Point B:
.073 ips to
.174 ips Point E:
.190 ips to
.456 ips Required Action Range Low Pressure:
76.50 psig High Pres-ure:
87.55 psig Vibration Motor End Pump End l
Point C: >
.700 ips Point A: >
.666 ips Point D: >
.402 ips Point B: >
.174 ips Point E: >
.456 ips Comment: New values generated following initiation of vibration measurements.
_. =..
tl,
i l
TEST DATA FOR ONE PUMP 9/23/96 Page 1
Pump: 2P45 i
Testi 018 f
Pressure Test Vibrations (1ps) l Test Date Diff P A
B C
D E
Int Remarks l
9/23/92 74 9/23/92 74 BAT ROUTINE SURVEILLANCE 11/08/92 73 11/08/92 73 LEH ROUTINE SURVEILLANCE 11/14/92 73 JAH MOD 91 133 TCST 1/05/93 76 1/05/93 76 LEH ROUTINE SURVEILLANCE 3/16/93 74 6/16/93 75 9/18/93 77 l
12/17/93 80 6/19/94 77
.183
.067
.130
.038
.074 KKN ROUTINE SURVEILLANCE 9/16/94 82
.116
.031
.193
.068 LEH ROUTINE SURVE!LLANCE 12/19/94 85
.111
.029
.183
.067
.076 LEH ROUTINE SURVEILLANCE j
4/27/95 42
.206
.105
.105
.044
.090 BAT INCREASED FREQUENCY 6/16/95 82
.142
.051
.199
.087
,110 LRD ROUTINE 9506566 9/16/95 86 174
.053
.249
.115
.196 LEH ROUTINE SURVEILLANCE j
12/16/95 84 189
.111
.203
.083
.139 LEH ROUTINE EURVEILLANCE i
1/27/96 76 169
.060
.184
.082
.511 LEH INCREASED FREQUENCY 1/31/96 77
.272
.065
.192
.076
.186 LEH Special test, 2P48 3/16/96 77
.181
.073
.199
.074
.141 LEH POUTINE SURVEILLANCE 5/06/96 82
.170
.104
.199
.098
.183 LEH INCREASED FREQ. 2P4A 6/16/96 81
.188
.107
.212
.099
.236 LRD ROUTINE SURV., 96062 7/27/96 75
.181
.078
.215
.102
.293 LEH INCREASED FREQUENCY 7/10/96 78
.192
.007
.216
.094
.185 LRD PMT FOR 2 P4 8, PI-184 9/20/96 79
.264
.078 327
.173
.269 LEH RDUTINE, WO 9602246
l I-Pump Reference
- PRESSURE TEST **
Values and Limits i
Date Established: 12/16/94 l
Pump #: 1P4A IT-017 Entered By: DEK l
i Reference Values l
l Reference Pressure:
88.50 psig Flow:
40.00 gpm Reference Vibration Motor End Pump End 1
Point C:
.088 ips Point A:
.053 ips Point D:
.149 ips Point B:
.059 ips Point E:
.051 ips i
Acceptable Range Pressure:
82.30 psig to 90.30 psig Vibration Motor End Pump End Point C: s
.220 ips Point A: s
.132 ips Point D: s
.325 ips Point B: s
.148 ips Point E: s
.128 ips Alert Range Low Pressure:
79.60 psig to 82.30 psig j
High Pressure:
90.30 psig to 91.20 psig Vibration Motor End Pump End Point C:
.220 ips to
.528 ips Point A:
.132 ips to
.318 ips Point D:
.325 ips to
.700 ips Point B:
.148 ips to
.354 ips Point E:
.128 ips to
.306 ips Required Action Range Low Pressure:
79.60 psig High Pressure:
91.20 psig Vibration Motor End Pump End Point C: >
.528 ips Point A: >
.318 ips Point D: >
.700 ips Point B: >
.354 ips Point E: >
.306 ips Comment: New values due to instrumentation modification.
F f
I f
TEST DATA FOR ONE PUMP 9/16/96 Page 1
Pump 1p4A Twsta 017 Pressure Test Vibrations (Aps) a Test Date Diff P A
B C
D E
Inc Remarks 9/24/92 50 BAT ROUTINE SURVEILIANCE 12/16/92 91 i
12/16/92 91 LEN ROWINE SURVEILLANCE 3/16/93 90 6/14/93 92 9/17/93 86 12/16/93 87 1/17/94 31 3/18/94
-86 3/18/94' 86 6/17/94 82
.064
.065
.140
.281
.047 ERN ROUTINE SINtVEILLANG 9/16/94 86
.101
.064
.255
.218 LEH ROUTINE SURVEILLANCE 12/16/94 89
.088
.149
.530
.059 051 LEH ROWINE SURVEILLANCE 2/17/95 79
.164
.148
.118
.059
.095 LEN iP-4A, NO 940213, 94 4/15/95 88
.113
.065
.218
.205
.050 LEH ROWINE SURVEILIANCE 9/16/95 90
.139
.059
.187
.172
.198 LEH ROWINE SURVEILLANCE 12/16/95 86
.112
.073
.204
.235
.158 LEH ROWINE SURVEILIANCE 1/27/96 88
.104
.065
.181
.188
.171 LEH INCREASED FREQ. IP4A 3/16/96 80
.120
.067
,181
.203
.155 LEH ROUTINE SURVEILLANCE 5/03/96 78
.073
.101
.155 -
.226
.123 LEH Increased freq, IP4A 5/06/96 89
.123
.072
.198
.138
.184 LEH INCREASED FREQ. IP4A 6/15/96 86
.102
.065
.175
.189 152 LRD ROUTINE SURY., 96062 j
7/27/96 90
.104
.070
.191
.187
.228 LEH INCREASED FREQUENCY 9/15/96 89
.112
.069
.144
.197
.122 LEH ROUTINE SURVEILLANCE l
i i
I l
l
. ~
.- - ~_.
Pump Reference
- PRESSURE TEST **
Values and Limits Date Established: 12/16/94 Pump #: 1P4B IT-017 Entered By: DEK Reference Values Reference Pressure:
83.50 psig Flow:
40.00 gpm Reference Vibration Motor End Pump End l
Point C:
.164 ips Point A:
.107 ips Point D:
.197 ips Point B:
.073 ips i
Point E:
.067 ips l
Acceptable Range Pressure:
77.66 psig to 85.17 psig Vibration Motor End Pump End Point C: s
.325 ips Point A: s
.268 ips Point D: s i
.325 ips Point B: s
.183 ips Point E: s
.168 ips Alert Range Low Pressure:
75.15 psig to 77.66 psig High Pressure:
85.17 psig to 86.01 psig Vibration Motor End Pump End Point C:
.325 ips to
.700 ips Point A:
.268 ips to
.642 ips Point D:
.325 ips to
.700 ips Point B:
.183 ips to
.438 ips Point E:
.168 ips to
.402 ips Required Action Range Low Pressure:
75.15 psig High Pressure:
86.01 psig Vibration Motor End Pump End Point C:
.700 ips Point A: >
.642 ips Point D: >
.700 ips Point B: >
.438 ips Point E: >
.402 ips Comment: New values due to instrumentation modification.
- -..~
-, ~ -. -,. - - -. -
..-.n.-..-
a l
i TEST DATA FOR ONE PU>fP 9/16/96 Page 1 Pumpi IP48 Test: 017 Pressure Test
]
Vibrations (ips) j i
1 Test Date Diff P A
B C
D E
Int Remarks l
9/24/92 89 BAT ROUTINE SURVEILLANCE 12/16/92 90 12/16/92 90 LEH ROUTINE SURVEZLIANCE 3/16/93 89 4/22/93 88
)
6/14/93 89 1
9/18/93 80 9/30/93 80 12/16/93 41 1/17/94 87 1
3/18/94 81 3/10/94 81 6/17/94 77
.111
.100
.146
.226'
.106 KEN ROUTINE SURVEILLANCE 9/16/94 82
.104
.086
.016
.205 LEH ROUTINE SURVEILLANCE 12/16/94 84
.107
.073
.197
.164
,067 12H ROUTINE SURVEILLANCE 4/15/95 70
.089
.080
.140
.235
.063 LEH ROttT1NE SURVEILLANCE 5/27/95 82
.086
.078
.130
.378
.057 LRD INCREASED FREQUENCY 6/19/95 82 LRD DATA FOR EVALUATION 9/16/95 83
.120
.096
.166
.234
.061 T24 ROUTINE SURVEILIANCE 12/16/95 80
.098
.100
.130
.319
'.076 tJ.H AE f1E SURVEII.IANCE 1/27/96
?1
.120
.078
.038
.229
.G82 LEH INCREASED FREQ, IP4A 3/16/96 74
.111
. 049
.161
.207
.060 LEN ROUTINE SGtVEILIANCE 5/b5/96 8 *.
.810
.088
.205
.056
.129 LEH INCREASED FREQ. IP4A 6/15/9*
J0
.096
.095
.140
.218
.070 IAD ROUTINE SURV., 96062 1/27/9m 82
.089
.085
.162 233
.074 LEH INCREASED FREQUENCY 9/15/96 82
.114
.072
.180
.170
.061 LEM ROUTINE SURVEILIANCE i
l
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l I
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PSM 93-0985 TO:
FRON:
DATE:
December 21, 1993 SUBJECTS SUSCRITICALITY CALCULATION FOR BORIC ACID 0000 CENTRATION REDUCTICIf TECH SPEC CHANGE REFERENCB(S):
Calculation P-93-014 f
COPY TO:
'-=
l Files T1.5 l
l Calculation P-93-014 has been performed to support the proposed borie acid reduction Tech spec change. This calculation shows that for a typical fuel i
cycle, and assuming worse-case conditions, the reactor can be maintained subcritical following a trip. specifically, the amount of negative reactivity that can be inserted by one charging pump borating at a minimum speed using l
the RWST as the auction source is greater than the positive reactivity added from the decay of Xenon.
j The offacts of the proposed changes on the operational capability of the plant were also investigated. Although not a part of the above referenced calculation, it can be shown that boration via normal charging can easily keep i
up with the reactivity changes resulting from Eenon burnout following a reactor restart to full power during peak Xenon conditions.
From these calculations, it can be concluded that the proposed boric acid concentration reduction presents no additional safety or operational risks to the plant.
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