ML20127M173

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Nonproprietary AP600 1/8th Large Scale Passive CCS Heat Transfer Test Baseline Data Rept
ML20127M173
Person / Time
Site: 05200003
Issue date: 10/31/1992
From:
WESTINGHOUSE ELECTRIC COMPANY, DIV OF CBS CORP.
To:
Shared Package
ML19303F229 List:
References
WCAP-13567, NUDOCS 9301280128
Download: ML20127M173 (102)


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i WCAP-13567 WESTINGHOUSE PROPRIETARY CLASS 2

- VERSION EXISTS AS WCAP-13566 -

l 1

AP6001/8 th LARGE SCALE PASSIVE CONTAINMENT COOLING SYSTEM HEAT <

TRANSFER TEST BASELINE DATA REPORT E](C) WESTINGHOUSE ELECTRIC CORPORATION 19.22 l A heense is reserved to the U.S. Govemment under contreet DEAC03-90SF18495.

- O WESTINGHOUSE PROPRIETARY CLASS 2 _

This document contains informahon prepnetary to Westeghouse Electnc Corporaton; it is submated in confidene and is to be used solely for he purpose for which it is lumished and retumed upon request. This document and such informanon is not to be reproduced, transmined, disclosed or used othervnse in whole or in part wthout authonzaton of Weshnghouse Electne Corporation, Energy Systems Busmess Urvt, subject to me legends contained hereof,'

GOVERNMENT LIMITED RIGHTS: _ _ _

' (A) These data are submitted wth tmited nghts under Govemment Contract No DE-AC0340SFtS496. These data may be reprodJood and used .

by the Govemment with the express isnaation that they mit not, without wnnen permiseson of the Contractor, be used for purpoems of manufacturer nor dsclosed outade the Govemment; except that the Govemment may dedose these data outsede he Govemment for the fonomng purposes, if s.ny, provuled mat the Govemment makes such deciosure subsect to pschibition apamst further use and aiodoeurs:

(1) This 'propnetary data' may be dedoned for evaluanon purposes under me teetnceons at ove, _ _ _

' (II) - The 'propnetary data' may be W to the Electnc Power Fleseann insatute (EPRI), electnc utitty roptosentatives and their droct consultants, excludng drect commercial compettors, and the DOE Nanonal Laboratones under the prohibitions and rootictions above, (B) This notice shall be marked on any reproducion of these data. in whole orin part.

[]} WESTINGHOUSE CLASS 3 (NON PROPRIETARY) - 4 EPRI CONFIDENTIAUOBLIGATION NOTICES: -

NOTICE: ' 13 20 3 O4 O's O CATEGORY: AEsOC ODDEOF O O DOE CONTRACT DELIVERABLES (DELIVERED DATA)

Subject to specified exceptior.s, disclosure of this data is restncted unti September 30,1996 or Design Certificanon under doe contract DE AC03-90SF18495, wtuchever is later.

Westinghouse Electric Corporation-Energy Systems Business Unit Nuclear And Advanced -Technology Division P.O. Box 355 Pittsburgh, Pennsylvania _15230

@ 1992 Westinghouse Electric Corporation All Rights Reserved r:

. y,; . . . _ . .

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WESTINGHOUSE CLASS 3.

P

t AP6001/8* LARGE SCALE PASSIVE CONTAINMENT 1 COOLING SYSTEM HEAT TRANSFER TEST BASELINE -

DATA REPORT 1

OCTOBER 1992 4

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! WESTINGHOUSE CLASS 3 l-ecs. m m3 Revmon i LIMITED RIGIITS LEGEND This technical data contains " proprietary data" furnished under Contract No. DE-AC02-9CCHl(M39 with the U.S. Department of Energy which may be duplicated and used by the Government with the express limitations that the " proprietary data" may not be disclosed outside the Government or be used for purposes of manufacture without prior permission of the Contractor, except that further disclosures or use may be made solely for the evaluation purposes under the restriction that the " proprietary data" be retained in confidence and not further disclosed.

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WESTINGHOUSE CLASS 3 rcs nnaa Raven i AP6001/8"'Large Scale Passive Contalmnent Cooling System Test Baseline Data Report ABSTRACT The AP600 is being designed to utilize a Passive Contamment Cooling System (PCCS) to remove hea released to the containment following postulated design basis events that result in containment heatup and pressurization. The system employs passive (natural draft) air cooling to transfer heat from the steel containment vessel to the environment. Air enters an annular space between the air baffle and die steel containment vessel and rises as a result of the natural draft developed as the ,ir is heated by the containment surfrice. The cooling is enhanced by draining ws rr onto the steel containment shell resulting in the heated water being evaporated into the air stream. The heated air and evaporated water exits the shield building through an outlet (chimney) located above the containment shell. In this manner, heat is transferred from the outer containment surface to the environment by natural

, convection.

The purpose of the AP603 Large Scale Containment Cooling Test was to provide test data for use in developin5 arul verifying analytical models used in the analysis of the AP600 containment cooling system. The AP600 Large Scale Passive Containment Cooling System tests investigated a range of operating conditions, air flow velocities and percentage of water coverage on the containment dome typical of those expected in the AP600.

The AP600 Large Scale PCCS tests were conducted at the Westinghouse Science and Technology Center, Large Scale Passive Containment Cooling Test Facill:y, This facility was specifically designed to model and test the heat transfer performance of the AP600 Passive Containment Cooling System.

This report presents the test data obtained for all sixteen baseline tests performed in the AP600 Large Scale PCCS test vessel. Five baseline tests were performed without any internal partitions and an

'idditional eleven tests were performed with internal partitions below the operating deck level to produce open and closed rolumes. 'the tests were completed using three different test pressures (10, 30 and 40 psig) spanning the range of anticipated AP600 containment pressures. Four cooling air flow conditions (natural,9,12 and 16 ft/sec) span the anucipated AP600 annulus flow velocities. The tests included various amounts of water coverage over the surface of the vessel from 50% to 100E i

WESTINGHOUSE CLASS 3 Pcs.n n.co)

Revaian 1 TABLE OF CONTENTS Section .

M

1.0 INTRODUCTION

1 2.0 RDIRENCES 3-3.0 PCCS LARGE SCALE TEST APPARATUS 4 3.1 Summary Description 4 3.2 Foundation and Tower 5 3.3 Pressure Vessel

  • 5 3.4 2 Steam Supply 6

3.5 Steam inlet into Vessel 6 3.6 Condensate Handling 7 3.7 External Cooling Annulus and Air Ducting 7 3.8 Axial Fan 8 3.9 Instrumentation and Measurements 8 3.9.1 Steam and Condensate Flow. Temperature and Pressure 8 ,

3.9.2 Vessel Water Cooling 9 3.9.3 Containment Vessel Wall Temperatures 9-3.9.4 Containment Annulus Air Flow and Temperature 9 3.9.5 Annulus Wall Ternperatures 11 3.9.6 W6d Speed and Direction 11 3.9.7 Data Acquisition and Recording 12.

4.0 TEST CONDITIONS 30 5.0 AP600 LARGE SCALE TEST RESULTS 32 5.1 Discussion AP600 Large Scale Test Results 32 APPENDIX A FLOW RESISTANCE OF BAFFLE ASSEMBLY APPENDIX B TABULATED TEST DATA NO INTERNALS TESTS APPENDIX C TABULATED TEST DATA INTERNALS TESTS APPEND 1X D TABULATED TEST DATA INCOMPLETE TESTS

WESTINGHOUSE CLASS 3 Pcs. man Rtvision i TA13LE OF CONTENTS IJ5t of Tables Table No. Pare 3.9 1 LST Data Channel Assignment 20 4.0 1 AP600 Large Scale Containruent Cooling Test Test Matrix 31 5.0.1 Summary Test Run Performance for AP600 Baseline Test Series 37 5.0-2 Test 201.1 Summary Data 38 5.0 3 Test 202.1 Summary Da 40 5.04 Test 203.1 Summary Data 42 5.0 5 Test 207.1 Summary Data 44 5.0-6 Test 207.2 Summary Data 46 5.0-7 Test 201.2 Summary Data 48 5.0-8 Test 202.2 Summary Data 50 5.0 9 Test 203.2 Summary Data 51 5.0-10 Test 204.1 Summary Data 54 5.0 11 Test 205.1 Summaty Data 56 5.0 12 Test 206.l Summary Data 58 5.0-13 Test 207.3 Summary Data 60 5.0 14 Test 207.4 Stunmary Data 62 5.0-15 Test 208.1 Summary Data 64 5.0-16 Test 210.1 Summary Data 66 5.0 17 Test 211.; Summary Data 68 5.1-1 Vessel Temperature Distribution for Test 201.1 70 5.1 -2 Vessel Temperature Distribution for Test 202.1 71 5.13 Vessel Temperature Distribution for Test 203.1 72 5.1-4 Vessel Temperature Distribution for Test 207.1 73 5.15 Vessel Temperature Dist.itution for Test 207.2 74 5.1 6 Vessel Temperature Distribution for Test 201.2 75 5.17 Vessel Temperature Distribution for Test 202.2 76 5.1-8 Vessel Temperature Distribution for Test 203.2 77 5.19 Vessel Temperature Distribution for Test 204.1 78 5.1 10 Vessel Temperature Distribution for Test 205.1 79 5.1 11 Vessel Temperature Distribution for Test 206.1 80 5.1 12 Vessel Temperature Distribution for Test 207.3 81 5.1 13 Vessel Temperature Distribution for Test 207.4 82 5.1-14 Vessel Temperature Distribution for Test 208.1 83 5.1-15 Vessel Temperature Distribution for Test 210.1 84

'4 5.1 16 Vessel Temperature Distribution for Test 211.1 85 5.1 17 Comparison of Heat Loss Estimates from Baseline Large Scale Test Series 86 l

5.1.18 Stunmary of Test Article Areas 87 5.1-19 Overall Test Performance 88 11 i.

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WESTINGHOUSE CLASS 3  ;

Pcs.n a m Revaion 1 -

TAllLE OF CONTENTS List of Figures Firure No, P_agg 3.1 1 Section View of Ah600 Large Scale PCCS Test 13 3.12 Large Scale PCCS Test Internals 14 3.1.3 Large Scale PCCS Test Apparatus 15 3.51 Steam Diffuser for Internals Testing 16 3.7 1 Test Apparatus Baffle Arrangement 17 3.7 2 Water Film Distributor 18 3.91 Large Scale PCCS Instrumentation Elevations 19 5.11 Range of Heat Fluxes Measured During the AP600 Baseline Test Series 36 iii

WESTINGHOUSE CLASS 3 PC5 72R403 Rsvismo 1

1.0 INTRODUCTION

in the AP600 design, the function of the Passive Containment Cooling System (PCCS) is to provide a safety grade means for transferring heat from the containment to the environr' tent following any postulated event that results in containment heatup and pressurization. The AP600 utilizes passive cooling of the free standing steel containment vessel. Ifeat is trresferred to the inside surface of the steel containment vessel by convection and condensation of steam and through the steel wall by conduct on. Ileat is then transferred from the outside containment surface by film and a natural convection induced flow of air which enters an annular space around the steel containment shell.

Cooling of the containment is enhanced by the addition of water distributed over the containment surface which is heated and is evaporated into the air stream. The heated air and water vapor rises as a result of the natural draft developed and exits the shield building through an outlet (chhnney) located above the containment shell.

The performance of the AP600 PCCS depends predominantly upon the cooling air buoyant driving force, the air flow path pressure losses, the effective containment shell heat transfer coefficient and the wetted PCCS beat transfer area. Other factors which can influence PCCS performance include wind conditions, nearby buildings and topography, inside containment circulation patterns, water distribution patterns, and the effects of non condensible gases inside the containment.

In order to accurately assess the impact of these parameters on the AP600 PCCS heat removal capability, a total testing program was prepared which includes the following series of tests:

AP600 lleated Piste Test (Reference 2.1)

AP600 PCCS Water Distribution Test (Reference 2.2)

AP600 Small Scale Containment Cooling Test (Reference 2.3)

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AP600 large Scale Passive Containment Cooling System Test (Reference 2.4)

AP600 PCCS Wind Tunnel Test (Reference 2.5)

AP600 PCCS Air Flow Path Pressure Drop Test (reference 2.6)

This report presents the test data from the baseline heat transfer tests of the AP600 Large Scale Containtnent Cooling Test.

The purpose of the AP600 Large Scale Containment Cooling Test was to provide valid data to verify containment computer codes and models used to assess the AP600 Containment Cooling System. The tests were performed over a range of internal test vessel pressures, bounding the calculated wont design basis containment pressure, to obtain heat transfer data at conditions and air cooling velocities similar to those expected in the operation of the PCCS.

This test report presents the test data of the Ltrge Scale Baseline Tests with and without intemal compartments and with both a center and off center steam distribution nozzle. This repon also provides a general description of the overall AP600 large Scale Containment Cooling Test facility which was specified in Reference 2.4. An additional series of more heavily instmmented tests, identified as confirmatory tests, will be performed to extend the test data base and provide additional i

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WESTINGHOUSE CLASS 3 PC5.T2R &3 wwmi details of the test behavior.11pon completion of the confumatory program a comprehensive report on the entire test program and results will be prepared.

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3 WESTINGHOUSE CLASS 3 L

Pcs 72aan

, Reveien 1 '

2.0 REFERENCES

2.1 Tests of Heat Transfer and Water Pilm Evaporation on a Heated Plate Shnulating Cooling of the AP600 Reactor Containment, WCAP.1266$ Rev. 01,4/24#2.

2.2 PCS Water Distribution Test Film Thickness / Percent Coverage, AP600 Doc. PCS.T2C-002, Rev. 0. 4/6S2 .- .

2.3 Integral Containment Cooling Test Extension . Test Specification, Rev. O, WCAP.13315. Rev.

O, AP600 Doc. PCS.TIP-003 Rev. O.

2.4 Test Specification: Large Scale Passive Containment Cooling Test, AP600 Doc. #PCS.TIP 002 Rev.1, WCAP.13267 December 1991.

2.5 Passive Containment Cooling System Wind Tunnel Test Specification, Rev. O WCAP_.13294. -

Rev. O, AP600 Doc. PCS-TIP.004, Rev. O.

. 2.6 Tests of Air Plow for Cooling the AP600 Reactor Containment, Rev. O, WCAP.13328, AP600 Doc. PCS.T2R.010, Rev. O.

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WESTINGHOUSE Cl. ASS 3 MET 2R403 Revision I 3.0 PCCS LARGE SCALE TEST APPARATUS 3.1 SUMMARUESCRIITION De AP600 Large Scale Contalmnent Cooling Tests were perfortned using the Large Scale Test Facility located at the Westinghouse Science and Technology Center in Churchill, Pa. This facility was constructed for the IfWRF Containment Testing Program and is shared with the AP600 Plant Passive Containment Cooling System (PCCS) test program.

De Large Scale PCCS Test Facility uses a 20 foot tall,15 foot diameter pressure vessel to simulate the steel containment shell. The vessel contains air or at one atmosphere when cold and is supplied with steam at pessures up to 100 psig. A transparent acrylic cylinder installed around the vessel forms the air cooling annulus. Air flow up the annulus and water flow down the outside of the vessel cools the vessel surface resulting in condensation of the steam inside the vessel.

Figure 3.11 is a schematic diagram of the test apparatus without intervals and Figure 3.12 shows the configuration with internals. Saturated steam frotn a boiler is throttled to a variable but controlled pressure and supplied to the bottom of the vessel. All tests were conducted with the vessel initially containing one atmosphere of air. The steam is injected into the bottom center of the vessel as shown in the figure for the no internals tests. The internals used hi the second series of baseline tests provide a simulated steam generse compartment, an area open to the bottom of vessel and an area that is closed to through flow with a single open enuy location. The steam is injected through a conical diffuser in the center of the steam generator compartment. The stema distributor provides low velocity steam at a scaled height commensurate with that of an operating deck of the reactor plaut.

De total beat transfer rate from the test vessel is obtained from measurements of the steam inlet pressure, temperature, and condensate flow rate and temperature from the vessel to calculate the emhalpy change. Seventy-eight (78) pairs of thermocouples located on both the outer and inner surfaces of the vessel's 0.875 inch thick steel wall indicate the temperature distribution and heat flux over the height and circumference of the vessel. Thermocouples placed approximately one inch inside the pressure vessel provide a measurement of the vessel bulk steam temperature as a function of position.

An axial fan at the top of the annular shell provided the capability of testing the apparatus at various air velocities.

The temperature of the cooling air is measured at the entrance of the annular region and upon exiting the annulus in the chimney region prior to the fan. De cooling air velocity is measured by calibration of the fan controls by conducting a velocity traverse in the cooling air annulus using a heated wire anemometer at various control settings. The heat transfer to the cooling air (i.e., its temperature rise multiplied by its specific heat and its measured flow rate) and the water evaporated provides a measurement of the total heat transfer.

l 4

WESTINGHOUSE Cl. ASS 3 PCS.T2R403 Rev6sion 1 A photograph of the test appaJatus, Figure 3.13, shows many of the test components including the transparent cylinderatretest vessel. ne tower, which supports all but the pressure vessel, provides two floors for workers to assemble components, install instmmentation and conduct instrument traverses.

3.2 FOUNDATION AND TOWER ne Large Scale test article is supported on a reinforced concrete foundation capable of supporting the weight of the test vessel and test tower under nortaal operating conditions (33 tons) and completely filled with water for hydro test (<!40 ton total). ,

The test tower provides support for the air baffles, piping and instrumentation as well as platforms for workmen and test operators. The test tower is displaced approximately 12 inches from the side of the test article to provide clearance for an air baffle. ne photograph (Figure 3.1-3) shows the test article sitting on the foundation with the test tower installed around it. The entire assembly is capable of withstanding 100 mile per hour winds.

3.3 PRESSURE VESSEL The AP600 test article was manufactured in accordance with the specification identified in Reference 2.4 which is summarized below:

The containment tank is an ASME Division 1 Section XIII vessel, built to approximately 1/8* linear scale and constructed of carbon steel with a minimum wall thickness of 0.875 inches. De tank is dedgned for internal pressures of S 100 psig while operating at temperatures up to 350"F. ,

The 20 foot tall vessel is 15 feet in diameter with 2:1 elliptical heads at each end. Small penetrations .

(up to 3/8 NPT) are provided in the upper head for instrumentation and sampling probes and a central four inch weld pad flange for venting and instrument tree centering (to tw utilized in confirmatory .

testing. The surfaces of the upper head and walls provide prototypic surfaces for the condensate film.

The tank interior and exterior surfaces were sandblasted, prior to painting, with 0-40 size steel shot and was spray coated to a thickness of 4 to 6 mills with[

The resulting surface is the same highly wettable surface coating specified in the AP600 design.

A 24 inct manway for personnel access is provided in the side of the tank using appropriate welding nects and flanges. De vessel bottom is equipped with a 20 inch flange for connection of the condensate drains and instrumentation lines.- A separate 4 inch flange is mounted on tle bottom head to facilitate connection of the steam supply piping 40 incnes from the vessel centerline.

Internal " gutters" provide the means to separately collect the condensate from the inside sidewall and from the dome region. The gutters in the dome region are provided to allow for separation of 5

WESTINGHOUSE CLASS 3 i

pcs.nn.om Pavsson 1 condensate during confirmatory testing and are not separately drained during this phase of testing.

The bottom of the two-gutters is located approximately 70.38 inches from the top of the vessel and was kept filled with water during the initial testing (tests R8L through R12L) with no intemals due to plugged drain holes. The water was drained through four hoses to the top of the bottom twenty inch flange in the bottom of the vessel for the baseline tests with internals. De gutter at the operating deck level provides support for the superstructure of inttnal structures and is equipped with drainage holes for the collection and measurement of the condensate, from the side walls that will be utilized during the confirmatory phase of testing.

An extemal gutter (four inch angle) is located approximately 57 inches from the bottom of the vessel to collect the excess water that is not evaporated as it flows.down the outside of the vessel during the testing.

3.4 STEAM SUPPLY Saturated steam is supplied by a 10,000 pounds per hour gas fired boiler which is maintained at 100 psig during testing. Full firing is maintained at the boiler to avoid cycling and pressure swings that could resuit in unsteady operation of controls in the test apparatus. Excess steam is vented to ambient through a pressure limiting relief valve and flow silencer above the boiler. Laboratory demineralized water is used for boiler water makeup; condensate is returned to the boiler for recirculation.

He steam is supplied through approximately 68 feet of 4 inch, Schedule 40 piping insulawl with 1.5 inches of glass fiber insulation, through a 2 inch flow control valve to the test tower, and approximately 93 feet of 3 inch schedule 40 and 80 pipe. The 3 inch pipe is routed under road through approximately 62 ft of 3 inch " Perma-Pipe" equipped with 12 KW trace heating to add superheat to the steam. Electrical trace heaters are also installed over 40 feet of the 4 inch steam supply piping to reduce piping heat losses and assure that superheated steam conditions (after throttling from 100 psig to the lower test pressure) are maintained for all tests. At the test tower, after the underground "Prema Pipe", steam is delivered throu;h a 3 inch insulated pipe.

3.5 VESSEL INTERNALS ne initial series of baseline tests were performed in the vessel with no intemal partitions so that the intemal gases are free to move over the entire volume of the test vessel. The steel superstructure for supporting the intemals partitions and galvanized operating deck grating was installed. De steam was injected into the vessel through a 3 inch schedule 40 pipe with its outlet covered with a stainless steel mesh, he outlet is installed at a height equal to the height of the operating deck, approximately 57 inches above the bottom of the vessel in the center of the vessel.

The second series of baseline tests were performed in the vessel with internal partitions (Figure 3.12) providing open, closed and steam generator comparunent volumes below the operating deck. The .

open areas provide vertical communication with the vessel volume above the operating deck. He 6

WESTINGHOUSE Ci. ASS 3 Pcs.nnoos Revuma i closed areas provide a dead ended volume with one entrance and no exits. The steam generator compartment is equipped-with an 18 inch diameter conical steam injection tube (Figure 3.51) located in the center of the steam generator compartment approximately six inches below the operating deck level. De top of the diffuser is covered with a two layers of 60% open stainless steel mesh. The steam generator cornpartment is open vertically to the vessel vohune above the operating deck. The compartment walls are made of 16 gauge galvanized sheet.

3.6 CONDENSATE IIANDLING Condensate that is formed on the inside wall of the pressure vessel flows down and collects in the neck of the 20 inch flange at the bottom of the vessel. %c condensate is removed through a 1 inch pipe (later replaced with an inch and a half to incvesse capacity) connected to a liquid drain trap (vapor trap or steam trap) and cooled below 90"P by a condensate cooling heat exchanger. De coole4 condensate is collected in a weigh tank consisting of a 55 gallon drum which rests on an electronic scale. De mass of condensate collected in the weigh tank is measured by the electronic scale and this reading is continuously communicated to the Data Acquisition System (DAS) ovt.r an RS232 interface.

A level probe installed in the weigh tank is connected to a solenoid valve installed in the weigh tank drain line and provides for tutomatic draining when the weigh tank is filled.

3.7 EXTERNAL COOLING ANNULUS AND AIR DUCTING The AP600 Large Scale Test utilizes a single 3 inch annulus width (Figure 3.71) for all of the baseline tests. The cooling air annulus is formed by a 0.25 inch thick transparent acrylic cylinder installed on steel standoffs 3 inches from the pressure vessel surfree. Twelve four inch aluminum strips (0.25 inch thick) were used to hold the vertical edges of the acrylic panels. The panels were circumferentially stiffened using 1.5 inch wide curved aluminum bars. 'Ib components were assembled, using screws to fasten the acrylic to the aluminum supports, to form a cylinder 125 inches high and 186 inches inside diameter. The bottom of the acrylic cylinter was located at an elevation approximately 7 3/4 inches above the top of the gutter and approximauly 65 inches from the bottom of the vessel. This forme .he air inlet to the cooling annulus.

A 98 inch high domed diffuser and cordcal section is provided as a transition between the 186 inch diameter annulus wall and the 48 inch diameter axial fan housing.1he loss coefficient of the baffle arrangement was estimated at 12.8 (see Appendix A) with the fan off and stationary.

The top of the test vessel is equipped with a water film distributor shown in Figure 3.7 2. The water film distributor consists of four independently controlled sectors of "J Tubes" that distribute water evenly over the vessel dome at radil of 27 and 5 inches. Each sector may be independently closed to produce a dry vessel in quarter intervals. ne flow rate to the dome may also be reduced by adjustment of the flow control vsive to proouce additional water film striping <1fects.

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WESTINGHOUSE CLASS 3 Pcs. nam Revissas i n.

3.8 AXIAL FAN The axial fan is mounted in the annulus exit duct and provides controlled velocity air flow in the cooling air annulus. The fan was used for the AP600 tests requiring air velocities in excess of 4 It/sec. The fan section is 48 laches in diameter and 36 inches tall.

3.9 INSTRUMENTATION AND MEASUREMENTS

~

The following sections describe the various types of instrurnentation and data provided during these tests. Individual signal conversions are provided where the output data is presented as electrical signal in the attached appendices. All hermocouple outputs are converted directly in the data acquisition system to degrees Fahrenheit.

3.9.1 Steam and Condensate Flow, Temperature, and Pressure Steam flow rates to the vessel were not measv ed directly; however, steam that condensed on the inside vessel wall was measured by collecting the condensate in a weigh tank. He mass of condensate collected in the weigh tank was measured using an electronic scale. De scale reading was communicated to the Data Acquisition System (DAS) over RS232 interface and recorded, along with the coinciding time, at the same sarnpling rate selected for recording temperature measurements.

De steam inlet temperature was measured using a 1/16 inch diameter stainless steel sheathed chromel.

alumel thermocouple located just upstream of the steam distributor inlet. Condensate temperature was measured as it drained from the vessel. The steam / alt temperatures inside the test vessel are measured approximately 1 inch from the inside wall of the vessel by thirty two chromel alumel thermocouples.

Steam pressure was measured using a pressure transducer connected to the top of the test vessel by 0.25 inch copper tubing with the sensing unit located at the DAS in the control room. De pressure transducer has an accuracy of 1/4 percent (or 0.4 psi) with an output conversion:

/

Pf 3,0.308299-38.2145 (1) where:

P, = Internal Vessel Pressure (psig) 16 = Data Output Channel (238) (mv) ne enthalpies of the steam entering the vessel and the condensate leaviag the vessel were deternined using the steam inlet temperature, vessel pressure and condensate drain temperature. He condensate mass flow rates were calculated by dividing the mass of condensate collected over a given time interval by the corresponding time duration. De heat input to the vessel or the total heat transfer 8

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1 WESTINGHOUSE CLASS 3 l

l PC3.T2R403 l hwan I i

from the vessel was determined by multiplying the difference of the steam and condensate enthalpies  !

by the condensate mass flowrate.

3.9.2 Vessel Water Cooling

- The vessel cooling water flow to the top of the vessel is measured with a Brooks "Maglite" magnetic flow meter which provides output to the das acquisition system. The millivolt output signalis converted to gallons per minute (gpm) by the following relation:

F,-l 4.8077-7.5 u2 (2) whete:

F, = Water Flow to Top of Vessel (gpm) lu, = Data Output Channel (242) (mv)

The excess water collected from the gutter at the bottom of the annular shell was manually measured during the baseline testing by measuring the weight of water collected over a measured time period.

An automated Dow measurement system tied into the data acquisition system is being installed for confirmatory testing to provide continuous excess water flow rate with increased accuracy.

Various water cooling flow rates result in a striped wetting of the test vessel. When complete wetting does not occur, the width of the dry strips are measured aloog the circumference of the vessel at the bottom of the baffle during the test. This data is converted into a percent value for reporting herein.

3.9.3 Containment Vessel Wall Temperatures Forty 0.032 inch diameter stainless steel sheathed chromel-alumel thermocouples attached to the outer vessel wall provided a measure of vessel surface temperature. Each thermocouple junction end was installed in a 1/32 inch deep,1/32 inch wid groove approximately 3/4 of an inch long and peened into place. *lhe grooves were filled with solder and flDished to provide a smooth outer surface. A matching thermocouple is located on the inside wall at each location to provide heat flux measurement

  • 3.9.4 Containment Annulus Air Flow and Temperature An ALNOR Thermo Anemometer was used to calibrate the air velocity in the enoting air annulus.

AP600 testing with the water cooling film prevents velocity measurements during testing due to the high humidity in the annulus. The initial series of five tests were performed at a single variable frequency control setting for the fan motor which was calibrated versus annetlus velocity at the conclusion of these tests. The air velocity was obtained by performing air velocity traverses after the water cooling was tenninated. The traverses were conducted at six circumferencial positions at two elevations along the vertical annulus; each traverse consisted of eight velocity measurements across the '

annulus width. The ALNOR measures the mass velocity of the air referenced to standard atmospheric 9

- WESTINGHOUSE CLASS 3 Pcs.nn e Ravmion I conditions and therefore requires the velocity readings to be corrected to the actual conditions at the 4 measurement site. To obtain the actual local annulus air velocities, the test velocity measurements were corrected as follows: i V,=V,Cf (3) -I 1

Where: ^

V, = actual air velocity (ft/sec)

V i = velocity indicated by Thermo Anemometer (ft/sec) l C, = correction factor = ds/da = 0.075'(459.7+T i)/1.325'P, 1 ds = air density Ob/cu ft) at standard calibration conditfor.: 1 da = actual air density at local temperature and barometric pressure T i = local air temperature (*F) at velocity measurement location -

P, = ambient pressure (in. Hg)

Tbc test velocities were then corrected for the specific environmental conditions at the time of the test run by assuming that the mass flow rate remains constant for a constant control setting. Therefore the calibration velocities were corrected by multiplying them by the ratio of the air densities as follows:

V,=V,( )( ) (4)

Where:

V, = calibrated air velocity (ft/sec)

P, = calibration ambient pressure (psia)

T, = calibration air temperature ("R)

T, = ambient air test temperature (*R)

Subsequent tests were calibrated as a function of the fan RPM and all tests using the fan were adjusted to maintain the specific RPM calibration value, i.e. the volumetric flow under test conditions will remain at the calibrated value. The velocities indicated in the test results are corrected for the temperature difference between the inlet and the outlet.

T P,-V,(

) (5)

Where:

Ti = air inlet temperature ('R)

T = air outlet temperature (*R)

Comparison of the data from three or four tut runs at each velocity (8.18,13.01, and 16.8 ft/sec) indicate a standard deviation of approximately 1.7% for the RPM's tested (358,530, and 720). No differences were noted between dry calibration runs and ones with cold water flowing over the surface.

10

WESTINGHOUSE Ct. ASS 3 tcsmacos Revusae i A fixed rotary vaneanemometer is being installed in the diffuser discharge to provide a direct velocity measurement into the data acquisition system for conftrmatory testing.

He average air temperature entering the aantdus was measured using four radiation shielded thermocouples, spaced 9(f apart located in the annulus inlet region. ne average air te:nperature leaving the annulus was meastned using four sets of two thermocouples centered in equal areas at the outlet of.the air annulus before the fan with the two thermocouples in each set located 90* apart at radii of 12 and 20.78 inches in the 24 inch radius fan inlet. Each thermocouple was equipped with radiation sbleiding to obtain a tiue air tetoperature reading. He average annulus air temperature was calculated by averaging the ambient air temperature, annulus inlet and outlet temperatures and annulus air temperature traverse measurements on an elevation weighted basis.

The cooling air mass flowrate was calculated as the product of the local average annulus air velocity, the corresponding local air density and the area weighted flow area of each measurement.

he heat flux to the cooling air was obtained by multiplying the difference between the average inlet air temperature and average annulus outlet temperature by the annulus air mass flowrate and specific heat evaluated at the average annulus air temperature. The difference between the heat flux to the cooling air and the condensate heat flux is reported as an apparent ambient heat loss.

3.9.5 Annulus Wall Temperatures The inner surface temperature of the 3 inch annulus wall was measured using fifteen 0.032 inch diameter stainless steel sheathed chromel-alumel thermocouples cemented into a thirty second inch groove on the inner surface of the acrylic cylinder, ne wall thermocouples were located at each elevation where heat flux meters were placed; wall thermocouples located on the diffuser section were located in the middle of the diffuser wall area and opposite a point on the vessel midway between the 63 and 84 inch radius flux meters (~79 inch radius).

3.9.6 Wind Speed and Direction A weather vane / anemometer was mounted on the roof of the building ninety feet to the west of the test tower approximately 12 feet above Fround level, ne wind speed and direction were continuously monitored and recorded on the data acquisition system for the tests reported herein on DAS channels 240 and 241, respectively. This data was used to confirm that the steady state test data was not influenced by high average local wind conditions in excess of 5 mph during natural convection tests.

Tests performed under forced convection (-8 ft/sec) were accepted at local conditions averaging less than 6 mph.

11

WESTINGHOUSE CLASS 3 Pcs man Revision 1 3.9.7 Data Acquis'. don and Recordlag The test measurements, such as air velocity and atmosphaic pressure, were obtained with installed or portable instruments and manually recorded in a data log together with the time at which the observations were made. Thermocouple temperature measurements and collected condensate weight were processed by a Fluke data acquisition system which is connected to a personal computer to control the frequency of data acquisition and data storage. Thermocouples were connected to the system by 20 AWG, chromel alumel special limit (controlled purity) duplex extension wires with solid PVC lasulation. All thermocouple outputs were recorded using an electronic data logger tmit.

Thermocouple extensions were connected to isothermal terminal blocks that plugged into sets of low level input cards on the data logger or an extender chassis that connected with the data logger. The voltage signsis were converted to digital temperatures as the data logger sequentially sampled the inputs. Since the data loEger did not provide data storage capability, its digital output was transmiued.

along with the condensate weigh tank output, to a personal computer for display and storage on a floppy disk.

The kcations of the thermocouples are identified in Table 3.91 by a code which identifies the vertical position and the azimuth at the vertical section. The vertical cross sections are identified as shown in a,b Figure 3.91 The dome of the vessel is divided into 5 levels designated by their radius [

]and the side wall into cross sections A through F.

12 l

_I WESTINGHOUSE CLASS 3 l I

PCS 77R403  !

kermeon I

{

FIGURE 3.1 1. i i

SECTION VIEW-OF AP600 LARGE SCALE PCCS TEST WITHOUT INTERNALS ,

1 1

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13

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l'C5 T2.R@3 -

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FIGURE 3.7 2 e WATER FILM DISTRIBUTOR 4

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LARGE SCALE PCCS INSTRUMENTATION ELEVATIONS t i

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WESTINGHOUSE CLASS 3 PCS 72R403 Revkion 1 TA312 3.61 LIST 1)ATA CilANNEL ASSIGNMENT 11Ul*2 5124SOR O! ANN!1 TAG SENSOR '

DESCRIPTION LOCA110N NO. NO.

c-- _ _ . _ . . . _ ... -

O I TC IIEAT ftUX NSIDE -

a a,b I 2 TC IEAT ftUX OUTSIDE 2 3 TC IIEAT FLUX NSIDE ' i 3 4 7C HEAT ILUX OUTSIDE 4 $ TC IIEAT I1UX NSIDE S 6 TC ltEAT ftUX OUTSIDE 6 7 TC llEATILUX NSIDE 7 8 TC HEAT ftUX OUTSIDE 8 9 TC HEAT ftUX NSIDE 9 10 - TC HEATltUX OUTSIDE 10 11 TC HEAT stUX NSIDE (1) 11 12 TC HEATILUX OUTSIDE 12 13 TC IIEAT fufX. NSIDE 13 14 TC HEAT PLUX OUTSIDE 14 15 TC IIEAT fulX NSIDE 15 16 TC HEAT ftUX OUTSIDE 16 17 TC HEAT ILUX NSIDE 17 18 TC IIEATltUX OUTSIDE I8 19 TC HEAT ILUX NSIDE 19 20 TC IIEAT ftUX OUTSIDE 20 21 TC HEAT ILUX NSIDE 21 22 TC HEAT ILUX OUTSIDE 22 23 TC HEAT FLUX NSIDE 23 24 TC HEAT FLUX OUTSIDE 24 23 TC IEAT FLUX NSIDE 23 26 TC HEAT ILUX OUTSIDE 20

WESTINGHOUSE CLASS 3 PCS.72R.(c)

Revision i TABLE 3.91 LIST DATA CHANNEL ASSIGNMENT RUKE SENSOR OIANNEL TAO $1NSOR DESCPdFI10N LOCATION NO. No. '

~

26 27 TC lEAT EUX INSDE 27 28 TC IEAT ILUX OWi!DE 28 29 TC HEAT ILUX NSDE 29 30 TC IIEAT RUX OUr$DE 30 31 TC IEAT ftUX NSIDE 31 32 TC HEAT ILUX OUTSIDE

~

32 ' 33 TC IEAT RUX INSDE 33 M TC IIEAT RUX Otfr$1DE 34 33 TC llEAT ILUX NSIDE 33 36 TC IEAT ILUX OUTSDE (2) 36 37 TC IIEAT ILUX NSIDE 37 38 TC HEAT ILUX OUTSIDE

  • 38 39 TC HEATILUX NSDE 39 40 TC HEAT ILUX OUTSIDE 40 41 TC HEAT EUX NSDE 41 42 TC HEAT ILUX OUTSIDE 42 43 TC IEAT RUX NSIDE 43 44 TC IEAT RUX OUTS!DE 44 45 TC IEATILUX NSDB 43 46 TC HEAT ILUX OUTSIDE 46 47 TC IEAT ILUX NSIDE 47 48 Tf' HEAT R11X OUr$IDE 48 49 TC HEAT ILUX INSIDE r.

49 30 TC HEAT RUX OUTSID1:

30 31 TC HEAT RUX NSIDE 31 l 32 TC HEAT ILUX OUTSIDE 21

WESTINGHOUSE CLASS 3 pcs.n n a)

Revuma i re man ===r TABtX 331 LIST DATA CilANNEL ASSIGNMENT FWKE SINson O!ANhTI., TA0 SENSOR DESCRDTION LOCATION No. NO.

,,9

~

32 53 TC HEAT IWX NSIDE

$3 54 TC ltEAT FWX OtJTSIDE -

54 $$ TC IIEAT 11UX INSIDE

$$ $6 TC  !! EAT RUX OUTSIDE

$6 37 TC 1[ EAT ftUX N$1DE

$7 $4 TC 1IEAT ILUX OUTSIDE

$8 $9 TC IEAT TLUX NSIDE

$9 60 TC HEATILUX OUTSIDE 60 61 TC HEAT 11UX NSIDE 61 62 TC itEAT MUX OUT$tDE 62 63 TC ltEAT ILUX N3!DE 63 64 TC IEAT FLUX OLTSIDE 64 65 TC IEAT TLUX NSIDE 65 66 TC IEAT ILUX OUTSIDE 66 67 TC ILUID 67 68 TC R UID 64 69 TC R UID 69 70 TC ILUID 70 71 TC 11UID 71 72 TC R UID 72 73 TC ILUID GNACmT) 73 74 TC ILUID GNACmT) 74 75 TC 11UID 75 76 TC ftUID 76 77 TC ILUID 77 78 TC TLUID GNACTUT)

\n WESTINGHOUSE CLASS 3 PC5 T2A403 Revaion l TAH12 391 LIST DATA CllANNEL ASSIGNMENT EUKE SENSOR OLANNI2, TAG SENSOR DE80t!PI1ON LOCATION NO. No. *

-a,b 78 79 TC PLUID ONACITYE) 79 80 TC PLUID to 81 TC HEAT PLUX INSIDE 'A-210 ' ~

81 82- TC HEAT PLUX OUTSIDE A 210 82 - 83 TC HEAT PLUX 1NSIDE (3) A 180 83 $4 TC HEAT PLUX OUTSIDE A 180 84 ' 85 TC HPAT PLUX INSIDE A.lSo IS 86 TC '9ROIGDP A.lSO 86 87 TC HEAT PLUX INSIDE 3 180 87 88 TC HEAT PLUX OUTSIDE 3 180 -

48 89 TC HEAT PLUX INSIDE 3 130 89 90 TC HEAT PLUX OUTSIDE 1 8SO 90 91 TC HEAT PLUX INSIDE C 210 91 92 TC HEAT PLUX OUTSIDE C 210 92 93 TC HEAT PLUX INSIDE C.180 93 94 TC HEAT PLUX OUTSIDE C-180 94 95 TC llEAT PLUX INSIDE D 180

' 93 96 TC HEAT PLUX OUTSIDE D 180 96 - 97 TC HEAT PLUX INSIDE D ISO 97 96 TC HEAT PLUX OUTSIDE D 150 98 99 TC HEAT PLUX INSIDE E-180

)_

99 - 100 TC HEAT PLUX OUTSIDE E-180 100 101 TC HEAT PLUX INSIDE A.120 101 102, TC HEAT PLUX OUTSIDE A 120 102 103 TC HEAT PLUX INSIDE A.90 103 104 TC HEAT PLUX OUTSIDE A.90 23

- = - - -

.-w,--, b, _

r-WESTINGHOUSE CLASS 3

. PC5.T2R403 Revu6en i TABIE 3.61 LIST DATA CHANNEL ASSIGNMENT ftUKE SENSOR QlANNI2. TAO SENSOR DEiCRD' TION 1DCATION NO. NO. ,

104 10$ TC HEAT PLUX NSIDE A40 103 106 TC HEAT PLUX OUTSIDE A40 106 107 TC HEAT FLUX INSIDE B.120 107 108 TC HEAT PLUX OUTSIDE B.120 108 109 TC HEAT PLUX NSIDE B.90 109 110 TC HEAT PLUX OUTSIDE B.90 i10 til TC HEAT PLUX NSIDE B.60 111 112 TC HEAT PLUX OUTSIDE B.M .

112 113 TC HEAT PLUX NSIDE C.120 113 114 TC HEAT PLUX OUTSIDE C.120 lid 11$ TC HEAT PLUX NSIDE C.90 115 :16 TC HEAT PLUX OUTSIDE C.90 116 117 TC HEAT PLUX NSIDE C 40 117 118 TC HEAT PLUX OUTSIDE C.40 118 119 TC HEAT PLUX NSIDE D.120 119 120 TC HEAT PLUX OUTSIDE D-120 120 121 TC HEAT PLUX NSIDE D40

- 121

  • 122 TC HEAT PLUX OUTSIDE IMO h2 123 TC HEAT PLUX NSIDE E.120 123 124 TC HEAT PLUX OUTSIDE E.120 124 115 TC HEAT PLUX NSIDE E40 123- 126 TC HEAT PLUX OUTSIDE E40 126 127 TC HEAT PLUX INSIDE A4 127 128 TC HEAT PLUX OUTSIDE A4

-128 129 TC HEAT PLUX NSIDE A 300 129 130 TC HEAT PLUX OUTSIDE A 300 24

y

- WESTINGHOUSE CLASS 3 xs rama Revnice I TABLE 3,91 LIST DATA CHANNEL ASSIGNMENT FLUKE SENSOR QLANNEL TAG SENSOR DESQtHTION LOCATION 1:D- NO, 130 131 TC 11 EAT FLUX NSIDE -B4 131 132 TC IEAT FLUX OUr$IDE B-0 132 133 TC HEAT FLUX NSIDE B-300 133 134 TC IEAT KUX OUTSIDE B 300 134 135 TC IEAT FLUX NSIDE C0 135 136 TC HEAT FLt.tX OUTSIDE C0 136' 137 TC IEAT PLUX NSIDE C 300 137 138 TC IEAT FLUX OUTSDE x C300 138 139 TC AMBIENT AIR (4) 139 340 TC } EAT FLUX OUTSIDE D 30 ida . . .

14i TC HEAT TLUX NSIDE D'300 g 142 TC IEAT FLUX OUT31rs D 300 142 143 TC } EAT EUX NSIDE E-30 143 144 TC } EAT FLUX 07tSIDE E-30 5

144 145 TC IIEAT FLUX NS?DE E-300 145 146 TC IEAT FLUX OUTSIDE E 300 146 I47 TC IEAT FUUX NSTl2 A-270 147 148 TC HEAT FLUX OUTSIDE A-270 148 -s 149 TC' IEAT FLUX NSIDE A-240 149- 150 TC IEATFLUXOVfSDE A-240 150 I5I TC NEAT FLUX IN$IDE B 770 151 252 TC HEAT PLUX OUTSIDE B-270 152 153 TC HEAT FLUX NSIDE

< B-240 153 154 -TC HEAT FLUX OUTSIDE B-240 154 155 TC IEAT TLUX NSIDE C-270 l 155 156 TC HEAT FLUX OUTSIDE C270 25

. - - .~ . ,

,r . -

I 1

{n:/, , ,'

1 WESTINGHOUSE CLASS 3l 1

PC5 72R 003 ; i kvision 1 -  ; .

i i

TABLE 3 9-1 i LIST DATA CHANNEL ASSIGNMENT ,

PLUKE SENSOR OIANNEL TAG SENSOR- DEscurtlON - LOCATION e; NO. NO. - '

y 136 157 TC HEAT PLUX INSIDE C 240

[

157 154 TC HEAT PLUX OLMIDE C-240 - ,

158 159 TC HEAT PLUX 1NSIDE D 240 -

f 159 160 TC HEAT PLUX OUTSIDE D 240 ,

160 161 TC HEAT PLUX INSM - E-340 161 162 TC HEAT PLUX OUTSIDE E 240 -

.t 162 ! 163- TC HEAT PLUX INSIDE P 120 '

163 164 TC IEAT PLUX OUTSIDE P-120

  • 164 165 TC HEAT PLUX INSIDE P 30 165 166 TC HEA? PLUX OUTSIDE P-30 166 167 TC HEAT PLUX INSIDE P330 167 168 TC' HEAT PLUX OLTTSIDE P 330-2-

168 169 - TC HEAT PLUX INSIDE P-240

+

169 170 - -TC HEAT PLUX OUTSIDE P 240 -

170 171 TC EUID A 210

'f 171 172 -TC PLUID~ 'A -100 7

172 173 TC FLUID A-90 173 174 TC FLUID B 100 -

174 175 TC FLUID B 90 l

175 176- .TC FLUID C-100 176- 177 TC FLUID - C-90 177 178 TC FLUID D-100

, 178' '179 'TC FLU 1D E-180 -: >

179 180 TC FLUID .A4 180 181- TC FLUID A-270 14l 182 TC FLUID B4 h

e 26 c

w , - . . ., . ~ r a e - 4 g

WESTINGHOUSE CLASS 3 -

PCS-T2R403 Revision l TABLE 391 LIST DATA CHANNEL ASSIGNMENT FLUIE SI24SOR 1 OIANNE2. TAG SINSOR DIAJt!PTION LOCATION NO. NO.

182 183 TC ILUID B-270 183 IE4 TC FLUD C-0 154 185 TC FLUID C-270 185 186 TC FLUID D-?4 186 187 TC FLUID E 30 187 888 TC FLUID (INACUVE) F-1NO 188 189 TC FLUID (INACUVE) F4

~

189 190 TC AR OtttLET "P" 190 191 TC AIR OUILET 191 192 TC AR OUILET T 192 193 TC AR OUILET 193 194 TC AR OUILET *A*

194 195 TC AR OUn2T 195 IM TC AR OUTLET "P 196 197 TC AR OUILET

~

197 '

198 TC DOME BAFIG DO 180 198 199 TC DOME BAFFLE DO 90 199 200 TC DOfiE BAITLE DOC 200 201 TC DOME BAITLE DO 270 201 202 TC ANNULUS BAFFLE B-203-202 203 TC ANNULUS BAFFLE D-233 203 201 TC ANNULUS BAFFLI A-113 204 203 TC ANNULUS BAITLE B-113 205 206 TC A204ULUJ BAFFLE C-113 206 207 TC ANNULUS B AIT!E D 113 207 208 TC ANNL'LUS &AFFLE E-113 27

~

WESTINGHOUSE CLASS 3 PCS-T2R413 Revnion i TABLE 3 91 1AST DATA CllANNEL ASSIGNMENT ftUKE SENSOR

  • OIANNEL TAG SENtOR DESCRIPDON LOCATION NO. NO.

208 209 TC ANNULUS BAMLE B 23 209 210 TC ANNULUS BATTLE D 23 210 21) TO ANNULUS BAFFLE B-293 211 212 TC ANNULUS BAIT 12 D-293 212 213 TC i AIR IN12T *B* Al-203 213 214 TC AIR IN1IT Al-l13 214 ' 21$ TC AIR INIET *C" AI-23 ,

215 216 TC AIR INLET Al 293 216 217 TC STEAM INLET VESSEL *lr - S-1 217 218- TC CDNDENSATE OUT *O*

218 - 219 TC COOLED CONDENSATE 219 220 TC FILM WATER IN *D* -

220 221 TC FILM WATER OUT *E*

221 222 TC TRAVERSE KNUrTY

  • TK-203 42 223 TC TRAVERSE KNUCKII 1 7.-l13 223 224 TC TRAVERSE KNUCKLE TK 23 224 225 TC
  • BROKEN
  • 225- 226 TC TRAVERSE MID TM 203 226 227 TC TRAVERSE MID TM-Il3 227 228 TC TRAVERSE MID TM-23 +

228 229 TC TRAVERSE MID TM-293 229 230 TC TRAVERSE LOWER TL-203 230 231 TC TRAVERSE LOWER TL 113 23t 232 TC TRAVERSE LOWER TL 23 232 233 TC TRAVERSE LOWER TL 293 233 234 TC STEAM PIPE S-2 28

.. .. v.~.

k F

iWESTINGHOUSE CLASS 3 - '

o PCS M @31 ..

Revision 1 -

P

?

TAB 12 3.61 LIST DATA CHANNEL ASSIGNMENT -- "

FLUKE SENSOR CHANNil TAG SENSOR- DESCRIPTION LOCATION -

NO. NO. , -

234 235 TC STEAM PIPE S 3' 235 2% TC STEAM PIPE S-4 .

237' TC STEAM PIPE - :S.5 ' ,

2M 237 -238 TC STEAM PIPE INLET - 34 238 239 P VESSEL PRESSURE P-10 239 . 225 TC TRAVERSE KNUm12 TI 293 2de WIND VELDCTTY 241 WIND DRECTION . '

-242' WA1ER FI4W MImIR (4):

(1) Non-fueseasel afear ens run R11 (2) Non-funseenal for east was R8 alwoosh R12. Fansmonal for the pensender of emedag. .

(3) Non-funceenal for all oness sporend bewin.

(4) These chemals were is:orporeemd after esse ren RISL b

L s

l 1

s

+

b 4

29 s ,, . _ . .

m.., , , - . . . , . , , , , -

+

WESTINGHOUSE CLASS 3 PCS-T2R 003 Revision 1 4.0 TEST CONDITIONS The test conditions examined with the AP600 Large Scale Passive Containment Cooling Tests are listed in the test matrix provided as Table 4.01. All baseline tests were performed with inlet air at ambient temperature and humidity. The tests are numbered in such a way that the first three digits -

remain the same for tests conducted at the same nommal test conditions; the number to the right of the decimal point indicates the number in the series and indicates slight changes in the physical configuration or test configuration, i.e. internals added, striped water coverage versus sector water coverage, etc.

As specified in the test matrix, the sixteen tests were performed at three constant test pressures selected to provide data bounding the calculated worst design basis containment pressure of 55 psia and provide heat transfer data over the entire anticipated containment pressure range.

The tests performed during this series of baseline tests consisted of steady state tests at 10,30 and 40 psig under forced convection amrulus air flow of approximately 9 to 16 ft/sec utilizing the exit fan to provide the' air flow. In addition, two natural convection tests were performed. The distribution of water flowing over the test vessel was varied from full, to quarter and half contamment and striped over the vessel surface to simulate the behavior observed during the waier distribution tests (Ref. 2.5).

f I

j 30

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

4 iWESTINGHOUSE CLASS 3

-i PCS72R @3 Revsen1-TAB 12 4A 1 l AP4001ARGE SCA12 CONTADGENT COO!JNG TEST . TEST MATRIX STEAM SUPPLY - WATER ANNULUS AIR ~

TEST NUMBER PRESSURE P1DW DISTRIBUTION PLOW (PSIC) (OPM)  :(%) (TT/SEC) '

BASELLNE TEST NO LVTERNALS:

Ic201.1 10 ITDOD 100 9 L 202.1 30 PLDOD 100 9-L-203.1 40 PLDOD 100 - 9- .

L 207,1 30 FIDOD 75 9-L-207.2 30 STRIPE 75 9 BASELINE TEST %TDIINTERNALS:

~

L 201.2 30 PLD00 100 12 L 202.2 30 PLOOD -100 12 L-203J 40 PLDOD 100 12 L 204.1 30 PLDOD 100 16 l L,25.1 30 PLD00 100 8 L-2061 30 PLDOD 100 =PREE L 207J 30 FID00 75 12 L-204.1 30 FM So '12 L-207.4 30 STRIPE 75 12 L 210,1 40 PLDOD 100 =12-(110"P)

L-211.1 40 PLOOD 100 PREE (110'F)-

1) ALL TESTS PERFORMED AT STEADY STA1E CONDITIONS AT AMBENT A1MOSPHERIC CONDTDONS 21 VESSEL PRESSURES ARE TARGETED STEADY STATE VALUES 31

WESTINGHOUSE CLASS 3 PCS-MR 003 Revidon 1 5.0 AP600 LARGE SCALE TEST RESULTS A total of 20 test runs were performed in accomplishing the test matrix of Table 4.01. Table 5.0-1 delineates the test runs performed with appropriate comments as to test acceptability. Preliminary AP600 Large Scale Contamment Cooling Test results for the Baseline Tests are summartzed in Tables -

5.0-2 through Table 5.0-17. Appendix B provides a detailed output of the summary data by time and data acquisition channel number for the no internals tests and Appendix C provides the detailed data for the tests with internals. Appendix D contains the detailed output of tests which were not complete but contained valid data; the summary sheet supplied with each of these tests indicates the problem associated with each of these tests.

5.1 DISCUSSION AP600 LARGE SCALE TEST RESULTS ne LST data presented was obtained through a review of the test history recorded by the data acquisition system. The data representing steady state pressure conditions (10.5 psig over a minimum of 15 minutes) was isolated for further review. This portion of the data was further scanned for best overall steady state conditions (e.g. calm wmds, steady vessel wall temperatures, internal fluid temperatures, etc.). Condensate drain weights in the isolated data were reviewed to ensure that only condensate weight values corresponding to tank fill periods were considered in calculation of the condensate flow rates, i.e. values affected by the start and stop of condensate tank draming were excluded. In some cases it was necessary to select the beganing and end of fill periods by use of specifically identified fill times or by inspection of the time history data due to very large condensation rates. The isolated data was then averaged and the overall results are tabulated in Tables 5.0-2 through 5.0-17. This data reflects the averages of the temperatures at the various test vessel levels. De individual outside wall temperatures and differential temperatures at each cross section can vary significantly due to subcooled water (50 to 110 'F) applied to the top of the vessel and due to a non-uniform distribution of water over the vessel surface (striped surface). Figure 5.1-1 illustrates the range of wall heat fluxes versus outside wall tcmperatures for all the thermocouple pairs reported herein. He high differential temperatures are most likely the result of subcooled fluid on the vessel, whereas, the low differential temperatures and heat fhtxes are the result of dry vessel surface areas.

Tables 5.1 1 through 5.1-16 provide a comparison of the average, maximum and mimmum temperatures on the inside and outside vessel walls. Also included are the maxunum, mmimum and average differential temperatures for the same locations.

All differential temperatures reported were corrected for the calibration offset obtained by monitoring the vessel over a 48 hour5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> period at ambient conditions; the values are included at the bottom of the detailed data cutputs of Appendices B, C and D for the calculation of the average differential temperatures.

Also included in Tables 5.0-2 through 5.0-17 are the average results of the manual measurements of excess water flow rate, percent water coverage and estimate of the air velocity (see Section 3.9.4).

He values reported on excess water are the average of two measurements with the spread of the data indicated at each entry. The test vessel start temperature was obtained from a scan of the test vessel 32

WESTINGHOUSE CLASS 3 -

PCs.72R403 Revnion ! -

prior to the introduction of steam or the ambient temperature at daily startup (when available). The ambient pressure, humidity and temperature at startup were obtained from the U.S. Weather Bureau, if not available from the test facility.

Repeat test runs were performed where pertinent test data was missing or suspicious as indicated in Table 5.10. During the second series of tests (with intemals, Test Runs 17 through 26) the condensate collection was found incapable of handling condensate flow rates at the 40 psig pressure level. A sight glass was added to the bottom of the test vessel to ensure that condensate was not backing up into the vessel. The tests performed at 30 psig were foimd to have adequate capacity so long as the test was held at 30 psig for times in access of 15 minutes. The capacity of the condensate system was increased after Test Run R26 to provide capacity for the 40 psig tests. Therefore, the condensate measurements for Test Run R8L (Test 203.1) are probably low. No repeat of 203.1 was performed because the facility modification was completed prior to discovery of the problem.

Table 5.1 17 provides a rough comparison of the heat loads as calculated from the various measurements listed below o Condensate mass flow rate o External heat loss (water, air and radiation) o Heat flux acmss the wall Table 5.1 18 provides estimates of the test vessel and baffle surface areas and the applicable flow areas for use in evaluation of the test data. The indicated position of the area is approximately at the middle of the identified area. The condensate heat load was calculated from the enthalpy of the steam Gutering minus the enthalpy of the condensate leaving. The external heat loss sums the heat pickup of the cooling water, the heat of vaporization of water, the heat pickup of air and the estimated heat losses to the environment due to convection and radiation from the vessel bottom and baffle sides using the ambient temperature as T.,. The convection losses were es".imated using a heat transfer coefficient of 1 BTU /(br*ft 2.F). The equations used are shown below:

9m*W,.,fHgH,) (6) b*9 +9 +4%+9# (7)

L I

l 9 n"7 A//..ATg(1-f.,,).iT ) (8) 9.,'W,C,(T_-T,yH,,(W_-WJ (9) 33

i WESTINGHOUSE CLASS 3 PCS-T2R4103 Revwion I q_-R_,W,,,,,,-#,,W% (10) where:

qu =

heat loss calculated from the condensate flow (BTU /hr)

W. =

mass flow of condensate (lb/hr)

H,,,, = enthaply of steam into vessel (BTU /lb.)

Ha = enthaply of condensate leaving vessel (BTU /lb.)

q,,, =

estimate of heat lost to environment via air and water (BTU /hr) q,, =

estimate of heat lost to air in annulus (BTU /hr) q.,,, = estimate of heat lost to water flowing over the vessel and collected in the gutter (BTU /hr)

q. =

estimate of heat lost from convection and radiation on the

~ bottom of the vessel. (BTU /hr)

q. =

estimate of heat lost from convection and radiation on the outside surface of the baffle. (BTU /hr) q ,n =

the beat loss calculated from temperature drop across'the wall (BTU /hr)

W., = mass flow of air through the annulus (Ib/hr)

A, =

area of the cross section of interest (ft')

k = thermal conducuvity of steel (BTU *m/(ft *hr*T))

1 =

thickness of vessel wall (in) f, =

estimate of the fraction of circumference that is wetted AT m = maximum tempo.ime difference of cross section i (T)

AT, = murmum temperature difference of cross section i (T)

C,,,, = heat capacity of air (BTU /Ob*T))

T.,, = temperature at inlet to baffle T ,,,,, = temperature at outlet of baffle H. ,,,, =

enthalpy of water vapor leaving the annulus (BTU /lb)

. H_, =

enthalpy of water leaving the vessel outside gutter (BTU /lb)

W,. = mass flow of water to the top of the vessel Ob/br)

W,,,,,, = mass flow of water out of outside vessel gutter (Ib/hr)

H.,,,, =

enthalpy of water onto the top of the vessel surface (BTU /lb)

Equation 8 assumes that the maximum and minimum temperatures differences for a cross section are representative over the cross section and that the percentage of wet versas dry surface stays constant -

. from top to bottom. Equation 9 assumes that all evaporated water leaves the annulus as vapor and therefore does not provide any correction for condensation of water vapor prior to exit from the annulus. The heat loss nunbers calculated from the condensate (equation 6) are considered to be the most reliable since they depend on the least number of assumptions and represent a closed system.

34

WESTINGHOUSE CLASS 3 '

PCS T2R-(03 Revision i Table 5.1-19 presents a summary of the overall performance of each of the tests described herein.

Each test was reviewed by comparing the check pressure calculated from the vessel average inside wall temperature to the measured pressure conditions. The check pressure is calculated from the following relationship:

P,-P,( )+P,j u

(11)-

where:

P, = check Vessel Pressure (psia)

Pc = Initial Pressure of Vessel Intemal (psia)

T =

Average Inside Wall Temperature at Test Conditions (*R)

To =

Avenge Initial Air Temperature at Startup (*R)

P, = Saturation Pressure of steam at average vessel inside wall temperature (psia)

A ratio of the predicted (equation 11) to the measured test pressure less than or equal to unity provides an assurance that there was no large anount of air leakage from the vessel during testing. All tests performed during the baseline tests displayed ratios less than unity and therefore are considered to have maintained their integrity during the test run.

As a result of the tests addressed herein, a number of improvements or refinements are being incorporated into future test series which include:

o Incorporation of a continuous excess water measurement system.

o Addition of a steam flow meter, o Addition of a continuous annulus outlet air flow metee.

35

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SUMMARY

OF HE 17.ST RUNS PERPORMED FOR THE AP600 BASELINE TEST SERIES TEST TEST - NOMINAL CDMMINTS RUN NO. TEST PRESSURE -

(PSIG) ~

R8L 203.1 40 r** e -

- is low , since subsequent tests irdi:aned that -

the vessel we finns wuh weert daring eesis at 40 peig.

R9L : - 201.! 10 R10L - 202.1 30 I Ri tL - 207.1 30

-l

. R12L 207.2 30 i R17L 201.2 10 No excess wease :- - - -.; takma.

Al7AL 201.2 10 Rapest of Ran kl7L RISL - 203.2 40 ANm capacey of *=* syemm.

R19L 202.2 30 ch: -__  : at enor.

.R20L 2J8.1 30 R21L 207.3 30 R22L _ -207A 30 R23L-- 20$.1 30

. R24L 204.1 -30

..R25L 203.2 40 Umsenady puesmere vaine and cochng waner waperansa. r'- '-

vakse also ,

R26L - 206:1 30 ~

R27L - 203.2 ~ 40 - Repeas of runs R18L and R25L '

R2sL 213.1 40 - No excean waner -- .._at inkan. Natural convecnon test but no exosas waner -- _ a.s taken and no measertment of the ar velocity was ahia==ad R28AL 210.1 40 R34L - '202.2 30 Repem of Ran R19L 37 e

4

WESTINGHOUSE CLASS 3-K LT2R m3 Revision !

- a,b TABLE 5.62 TEST 201.1

SUMMARY

DATA .

RUN R9L AVERAGE TEST DATA

, i c- - - , ,

i 38 t

WESTINGHOUSE CLASS 3

i PCS T2R&J Revision 1

- Aeb TABli SA-2 TEST 201.1 SUhD4ARY DATA RUN R9L AVERAGE TEST DATA

.. l em W

39

WESTINGHOUSE CLASS 3 PCS-T2R403 Revnion I s ~

aab TABLE 5A3 TEST 202.1

SUMMARY

DATA -

RUN RIOL AVERAGE TEST DATA

\ g s n n. > >

O 40

J W

WESTINGHOUSE CLASS 3 Pcs-T2a.cos -

Revision I

, A,b.

TABLE 5.0 3 TEST 202.1

SUMMARY

DATA RUN RIOL AVERAGE TEST DATA 5

t 9

6 em

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41

WESTINGHOUSE CLASS 3 res-raan hvhn 1 -

, &ab

- TABLE SA 4 TEST 203.1

SUMMARY

DATA RUN REL AVERAGE TEST DATA P , . . . i t

}

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w x2 -

WESTINGHOUSE CLASS 3 -

PCS T2R@3 a,b TAB 12SA4 TEST 203.1

SUMMARY

DATA RUN RRL AVERAGE TEST DATA M

43 a

WESTINGHOUSE Ct. ASS 3 PCS 72R@3 Rnsion I _ ,,3 TABLE SAS TEST 207.1

SUMMARY

DATA RUN R11L AVERAGE TEST DATA i -

\-

44 -

a

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PCS-URE Revision 1. '*

a,b TABLE 5.0-5 TEST 207.1

SUMMARY

DATA RUN R11L AVERAGE TEST DATA -

E e

nouns 45

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a,b TABLE SM TEST 207,2

SUMMARY

DATA RUN R12 AVERAGE TEST DATA

.l 1  %

~

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PC3 T2Ra3 Revision 1 a,b TABLE SA4 TEST 207.2

SUMMARY

DATA RUN R12 AVERAGE TEST DATA

-l e6 m

4 47 l

WESTINGHOUSE CLASS 3 PCS T2R403 Revuwe 1

- a,b e

TAB 12$A7 TEST 201.2

SUMMARY

DATA RUN R17AL AVERAGE TEST DATA S

e i I W'

48 l

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  • T ABIE SA 7 '

TEST 201.2 $UMMARY DATA RUN R17AL AVERAGE TEST DATA

-t . -

7 9

asud e

49

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- a,b TABLE SA8 TEST 202.2

SUMMARY

DATA RUN R34L AVERAGE TEST DATA-d 50-

WESTINGHOUSE CLASS 3 PCS UROD Revismo 1

.a,b TABLE $M TEST 202.2 SUhDdARY DATA RUN R34L AVERAGE TEST DATA e

W 51

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TABLE SA9 TEST 203.2

SUMMARY

DATA RUN R27L AVERAGE TEST DATA 4

h 52

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SUMMARY

DATA RUN R27L AVERAGE 7EST DATA d

W mass 4

6 53 1:

g- 1~_A A S- &"% - J -# "

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SUMMARY

DATA RUN R24L AVERAGE TEST DATA P

P 4

P P

l ~

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WESTINGMOUSE CLASS 3 resmaan Revision i a,b TAB 115A10 TEST 204.1

SUMMARY

DATA RUti R24L AVERAGE TEST DATA W

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a mama 9

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l.

l

$7 1'

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

I WESTINGHOtJSE CLASS 3 PCS-T2R403 Revasion 1

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6 I

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TABLE 5.6U TEST 206.1

SUMMARY

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W 4

L i

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SUMMARY

DATA  !

RUN R21L AVERAGE TEST DATA 6

h

't e

S b

M l

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. _ , . . _ , . .; ,. 1. . ~ , . _ . - . . _ _ _ . _ . . , _ _ - . - _ . _ _ .

WESTINGHOUSE CLASS 3 PC5-72Rs*c3 Revision I a,b TAB 1J: 8.013 TEST 207.3

SUMMARY

DATA RUN R21L AVERAGE 'IEST DATA N

e e

1

+

61 y,- y w m. y s+.+ s., e ++ 9 gr

a 'E 44 m m+4 4*w,'.A4 4~__ z--A.4a.@--*=4-- J-- .r__A.1 s _ .aa,_ u A _s a_A -

WESTINGHOUSE CLASS 3 F

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,,,,, hob h I MWAme __

f TA312 5.014 TEST 207A

SUMMARY

DATA RUN R22L AVERAGE TPST DATA i i J I (  ;

0 8

T q

~

62

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

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om.au

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' ' ' 1 i , .,

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TABLE SA15 TEST 208.1 $UMMARY DATA RUN R20L AVERAGE TEST DATA W

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4 M

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- TARI2 5.119 OVERA111T5f PERFORMANCE m 1

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-WESTINGHOUSE CLASS 3 PCS T2R403 ,

Revkim I i APPENDIX A FLOW RESISTANCE OF BAFFLE ASSEMBLY

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PCS-T2R@3 Revision 1 APPENDIX B TABULATED TEST DATA B ASELINE TESTS NO INTERNAIM B.1 TEST 201.1, RUN 9L B.2 TEST 202.1, RUN 10L-B.3 TEST 203.1, RUN 8L B.4 TEST 207.1, RUN 11L B .5 TEST 207.2, RUN 12L PAGES 4 - 94 HAVE BEEN OMITTED AS THIS IS PROPRIETARY _TO HESTIflGH0VSE ELECTRIC- CORP 0PJ ' ION W

3

_ _. ~ . .

WESTINGHOUSE CLASS 3 i PCS.T2R4)03 Revnaan 1

- APPENDIX C '

TABULATED TEST DATA' BASELINE TESTS WITII INTERNALS '

C.1 TEST 201.2, RUN 17AL C.2 TE"T 202.2, RUN 34L C.3 TEST 203.2, RUN 27L -

C.4 TEST 204.1, RUN 24L C5 TEST 205.1, RUN 23L C.6 TEST 206.1, RUN 26L C.7 TEST 207.3, RUN 21L C.8 TEST 207A, RUN 22L C.9 TEST 208.1, RUN 20L C.10 TEST 210.1, RUN 28AL C.11 TEST 211.1, RUN 28L PAGES 96 - 295 HAVE BEEft OMITTED AS THIS IS PROPRIETARY T0 -

WESTIfiCHOUSE ELECTRIC CORPORATI0fl

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95

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WESTINGHOUSE CLASS 3 PCS-T2R@3 ,

Ravmion 1 APPENDIX D TABULATED PARTIAL TEST - TEST DATA

. BASELINE TESTS WTTH INTERNALS D.1 TEST 201.2, RUN 17L D.2 TEST 203.2, RUN 18L -

D.3 TEST 203.2, RUN 19L D.4 TEST 204.1, RUN 25L q PAGES 297 - 377 HAVE BEEN OMITTED I

AS THIS IS PROPRIETARY TO WESTINGHOUSE ELECTRIC CORPORATION i

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