ML19254D763

GMK-IIM Condensation Tests,Description of Measurement Concept.

ML19254D763
Person / Time
Site:	Susquehanna
Issue date:	06/30/1979
From:	KRAFTWERK UNION AKTIENGESELLSCHAFT
To:
Shared Package
ML18031A300	List: ML18031A299 ML19254D762 ML19254D763
References
R-541-10--79, NUDOCS 7910300110
Download: ML19254D763 (21)

Text

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57

. sa GKM II-M CONDENSATION IESTS o, DESCRIPTION OF THE MEASUREMENT CONCEPT

. f O !-

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- as translated from .G,E,R,M,A.N,,, ,,,,,,,

C aa GKM II-M CONDENSATION IESTS 7 BESCHREIBUNG DES MESSKONZEPTES - f7 m< -

p 5O E<

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O AUTHOR /S/ :ScHttin, KEMPF g Ne Ea Ea>

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S O U R CIE :KWU WORKING REPORT R 541/10/79 8a 5 a-Ec 1237 263 22 a _.

T[f@0t@S$9@GO JUNE 1979 $<' e 7910300 ! I, E' NXP PPal. k f E

Y@ $ $.

PENNSYLVANI A POWER jf S$.

& LIGHT COMPANY O ALLENTCWN. PENNSYLVANIA 3220 ALPINE ROAD PORTOLA VALLEY CALIFORNIA 94025 (4151 854-6732

Page 1 ;

Working Report .- R 541/10/79

Numcer uept./No./ 2 ear) 1 Title

. Karlstein, 11 April 79 GKM-II-M Condensation Tests Place, cate Description of the measurement concept Schmid R541 328 Kemof RS22 543 lA'Ethc r Dept. Tel.

Reference (e.g., Project, R&D Project): 2 /s/ 11 May 79 PP&L, SSES Units 1 and 2, CCOP Tests class Signature / classifier R 541-Sd/0000-876291 File no., rer. no., category no.

Summary l Pages: 6- l Attachments: 15 For disposition

. .by or for Under contract to the Pennsylvania Power & Light Company (PP&L) , the KWU information/

is preparing transient condensation tests of the pressure suppression Time limits system in the Grosskraftwerk Mannheim (GKM). These tests will be per-formed in the modified GKM II test stand (single cell with proportionate !

drywell and suppression chamber at actual scale). The purpose of the j tests is to verify the design of the pressure suppression systems of j the Susquehanna 1 and 2 nuclear power plants.  ;

The test stand is ext.ensively instrumented. Two instrumentation systems i are installed: operating inst"nentation and test instrumentation.

The purpose of the operating instrumentation is to controle the test sequence and ensure safe monitoring of the test stand. A process control computer is used for data acquisition.

The purpose of the test instrumentation is to collect all relevant data needed to evaluate the various phenomena. The measurement signals from the individual transducers are recorded on magnetic tape, light-spot line recorders and to some extent by the process control computer.

A survey of the instrumentation and its arrangement is given in

'Eigures and Tables.

/s/ Schmid /s/ Kempf /s/ Becker /s/ Sack Authors' signatures For ext. releas.

Schmid Kempf Dr. Becker, R141 Sack, RF132 16 May 7 Distribution list ( Add "z . K. " if on13 Summary for information):

Standard distribution list 2 of 15 May 79 Mr. Witt R541 Mr. Brunswick RS22 Hoffmann R541 PP&L 3x via RF 132 123 / 264 Flittner R541 . ,

Ehrnsperger R541 Dr. Schweickert R5 Spengler R523 Dr. Schad R54 .

Mr. St0lben For 1Mo. only Storb R522 R522]

Mr. L6hr R141l Kraftverk Union COMPANY CONFIDENTIAL _ _ . . . .. a

Page 2

1. Introduction IGiU is preparing in the GKM a test program for the performance of transient condensa-tion tests on the pressure suppression systems of the Susquehanna 1 and 2 BWR plants.

A d3 tailed description of the instrumentation, test set-up and test execution will be included in the Test Procedure which is being prepared for those tests.

The tests are performed in a rebuilt condensate accumulator. It conservatively simu.aues the smallest single cell of the pressure suppression system of the Susquehanna 1 and 2 plants. The volume of the proportionate upper annulus (drywell) is simulated by a meanted accumulator.

A replaceable standard orifice installed in the blowdown line simulates the postulated break cross-section of a main-steam line or feedwater line. The " break cross-section" is released by means of a rupture disk combination.

This report gives a first survey of the instrumentation of the test stand, which is subdivided into operating and test instrumentation.

The purpose of the operating instrurentation is to control the test sequence and

-i monitor the test stand. The test instrumentation ensures the recording of all data of significance for evaluation of the phenomena which occur dur.'ng air-poor condensation.

1

2. Identification system for the instrumentation The measurement transducers are identified by a system of letters and numbers.

Each identification. rtarts with a letter or letters describing the type of

, transduc?r:

1 P for Pressure Transducer T for Temperature Sensor (Thermocouple)

A L for Water _ Level Measurement DG for D,isplacement Gage SG for Strain Gage I for Electrical Impulse Signal LP for Level Probe i

IC for _ Load C_ ell AF for Air Fraction OR for ,Ovv,en _ Rate 1237 265

Page 3 m

Following these letters is a number which characterizes the mounting location or measurement location in the test stand. For that purpose, the test stand is divided imaginarily into different System Groups as follows (see Fig. 1):

System Group 1 contains transducers on the steam lines to the accumulator S6 and to the feedwater tank B 202 and in the feedwater tank B 203 System Group 2 contains the feedwater tank B 202 System Group 3 characterizes the steam accumulator S6 a

System Group 4 contains the steam supply to the test stand System Group 5 contains the instrumentation of the proportionate drywell with the vent pipe System Group 6 characterizes the suppression chamber The System Groups 1-4 contain the operating instrumentation, while groups 5 and 6 characterize the test instrumentation.

After this identification number there is a decimal point which separates this number from the running numbers of the transducers.

3. Operating instrumentation The purpose of the operating instrumentation (see Tables 1 and 2, Figures 1, 3 and 4) is to monitor the steam accumulator, feedwater tank and steam lines. The signals from the measurement transducers are interrogated by a process control computer and recorded. This computer is a part of the operating instrumentation. All data are stored on magnetic tape and can be printed out or plotted after each test. Before test start, the process control computer compares the recorded measurement signals with prescribed setpoint values and prints them out. If the measurement value differs from the setpoint value by a prescribed percentage, that measured value is identified in the printout.

The operating instrumentation concentrates on the measurement of pressures, temperatures and water levels in the steam accumulator, steam lines and feedwater tanks.

1237 266

Page 4

4. fest instrumentation The test instrumentation (see Tables 3-7 and Figures 3-6) records all the data needed to evaluate the phencmena occurring during air-poor steam condensation and the resulting loads in the pool, and also the data needed to determine the steam flow rate in the piping. The dynamic pressure loads are measured at several points in the pool. The forces occurring at the ver.t pipe bracing and at internals in the suppression chamber and at its structure are recorded by strain gages or load cells. The pressure build-up in the vent pipe is measured at several points. In addition, Level Probes are installed at the vent pipe so as to be able to record the dynamic behavior of the water surface. Pressure and temperature measuring points in the air space of the suppression chamber and in the proportionate accumu-lator provide information about the variation of pressure and temperature during the tests. Two differential-pressure measuring points in the water region of the suppression chamber record the air bubble fraction in the pool. At the upper end of the vent pipe there are two measuring points for determination of the air content of the steam, one measuring point for continuous sampling, and one other measuring point for discontinuous sampling. The measurement system for continuous sampling is provided by SRI. ' SRI

• is also providing assistance in the design of the second system.

The data is recorded on magnetic tape in analog form by means of carrier-frequency amplifisrs and de amplifiers. This ensures that high-frequency measure ent signals are recorded with proper frequency and amplitude. The data is reduced later by a computer. Simultaneously with the recording on magnetic tape, most of the measure-ment points are also recorded on light-spot line recorders. That type of recording makes it possible to get a quick look at important measurement variables shortly after each test. At the same time, a few selected transducer channels of the test instrumentation are recorded additionally at the process control computer. This procedure makes it possible to perform a quick and simple summary evaluation of that data after each test.

All the measurement channe'.s run together at a measurement place which is located in an air-conditioned measurement container.

Each measurement chains consists of a transducer, connection cable, amplifier (carrier-frequency or de amplifier) , balancing unit and recording unit (see Fig. 7).

• Stanford Research Institute International i237 267

page 5 The utilized pressure transducars have a measuring diaphragm and a foil strain gage system which is directly connected to the diaphragm. All pressure transducers in the water r_gion of the st.ppression chamber have an exposed measuring diaphragm with direct contact to the surrounding water. Earlier studies by KWU have shown that this type of transducer is best suited for recording higher-frequency pressure oscillations with correct f::equency and amplitude.

For the pressure measurement in the lines which carry steam, the measuring diaphragm has to be protected from the hot steam. That is accomplished by means of a short water-filled pipe which connects the transducer to the measurement site.

The transducers are connected to the measuring amplifiers by shielded cables.

Carrier-frequency amplifiers providing a frequency resolution of up to 1 kHz are used for the strain gages, displacement transducers aqd pressure transducers.

DC amplifiers with a 10 Hz low-pass filter are used for the temperature measurement.

~

5. Filming of the processes in the pool The processes in the water region of the suppression chamber are recorded optically on film by a high-speed camera and on video tape by a television camera.

The cameras are mounted outside the tank and observe the processes by means of bull's eyes. Several underwater searchlights are insta] led in ordar to ensure

, satisfactory lightir.g of the end of the vent pipe.

A uniform electrical reference signal ensures time correlation between all the data acquisition systems.

123/-_ ,68 c

1 Page 6

6. Note The following additional abbreviations are used in Tables 1-7.

DPS D_ata Processing System CTC Coated T_hermoccuple DCA Direct C_urrent _ Amplifier CFA C_arrier Frequency _ Amplifier HT-SG H_igh Temperat.tre Strain Gage PG Pressure Gage RTD _ Resistor T_emperature Detector i

1237 269

=

\

. . e , e Tr. note: The column headed " Transducer nates" should read " Transducer Data". This is an incorrect translation by KWU of the German word "Daten", wb. ch can mean either " dates" or " data" in English!

KWU GKM II- M - Condensation Tests oote R541 -Operating Instrumantation - "'"

Transducer Dates Recording Place Transducer Measuring - Point Marking Measuring - Locution Type Measuring Stock-No. Measuring DPS Control Test Figure Range Amplifer Channel Station Focility Pressure in the superheated steam line to the I*I ' "* "#

• steam line steam accumulator sensor

" h in steam 1&ne " " "

P 1.2 X X 1 Pressure in the feedwater tank " " " X P 3.) feedwater tank B 20) 1

" CFA P 2.1

feedwater tank B 202 $0 bar X X 1 p ) Pressure in the steam accomulator, " " " X X 1 steam zone I N

narton I

1. 31 Water level in thm steam a c c us .il a t or gg 2 bar 20 mA X X 1

" " O.2 bar 20 m A X X I,32 1

" Water L 3*3 Da00 - - X 1 SG Pressure in the blowdown line p

before throttle nozzle complete 50 bar CFA X 1 t>r i d ge PG with Pressure in the blowdown line before the rupture discs remote 25 bar 20 mA X X 1 sensor P 4.3 Pressure between the two rupture durs Y= X 1 N  %

u

%, f Temperature in the superheated steam line to the o T l.it y steam accumulatc~ o steam line N

M C.J T 1.2

" main steam line C7C 400 C X X 1

KWU GKM II- M - Condensation Tests Date R541 -Operating Instrumentation - "'"

Transducer Dates Recording Place Transducer Measuring - Point Marking Measue ing - Location Type IMeasuring Stock-No. Measuring DPS Control Test Figure Ronge Amphfer Channel Station Focdity T 3.) Temperature in the feedwater tank feedwater tank B 20) CTC 300 C DCA X l T 2.t " " " "

feedwater tank B 202 X X t

'E*#* "#* " * * **" *##""" * #'

T ).1 steam aone " " " X X 1 Temperature in the steam accumulator. , g 7 b2 water zone Temperature for t hee corrections of the eater level measurement in the " " "

T 3.) X X 1 steam accumulator

• Temperature in the blowdown line I T 4.1 * " " "

before the throttle nozzle X X 1 og I

T 5.4 Temperature in the drywell.ol the wall " " " X X l.3.4 L 6.1 Water level in the suppression pool 2 bar O.. 20mA X X 3.4 L 6.2 Water level in the annulus gap X X 3.4 IV A N s o

N N N co N

a -

. m

. . . e KWU GKM II-M-Condensation Tests cate R 541 -Test Instrumentation- "'7' Measuring Location Transducer Dates Data Recording Transducer Measuring-Point Marking Level Angle Type Measunng Stock-Na Measuring DPS Visi- Magnetic Figure H (mm) 4 (*) Range ArrgAfu Channel Corder Tape Strain i .i the tank wall, 30 uutside, vertical 2650 90 semi 6000p=/m CFA X X $

te r i d ge tra n in the tank wall, SG 6.4 outside horizontal 2650 90 a " " X X 5 g, g $ Strain in the tank wall, nutside, vertical " " "

26$O O X X $

Strain in the tank wall,

50. 6.6 2650 0 " " "

outside horizontal Vertical bending strain at sr. 0 7 the quencher dummy 1100 270 " " " X X X $

Horia ntal bending strain SG 6.8 , , , 3 at the quencher dummy 1

Vertical heading strain at the

$0. 6 A legs of the test vesse!

0 " " "

X X 4

Vertical bending strain at tha SG 6.10 legs of the test vessel Sv, X X 4

Displacement of the bottom " "'I "

• C'n 'r "** ** "

of the inner cylinder X X $

t,r i d g e 06 6.2 Displacement of the inner 2 "

cylinder at the crossing place 10000 " "

5 OG 6.4 90 X X OG 6.3 Displacement of the inner 0 , X x 0G 6.5 cylinder at the crossino place 180 5 x x N

DG 6.4 Displacement at the stiffening ring 6090 90 " " "

X X 5 '#'

e5 es

\

Tepperature in the suppression T 6.1 paol. water zone 6800 180 CTC 300 C DCA X X X $ h

. N T 6.2 [a [ 5200 180 a = = x x x $

KWU GKM II-M-Condensation Tests oate R 541 -Test Instrumentation- " /"

Measuring Location Transducer Dates Data Recording Transducer Measuring-Point Marking Level Angle Type Measuring Stock-No. Measuring DPS Visi- Magnetic Figure H (mm) Q (*) Range Arrplifier Channel corder Tope Temperature in the suppression T 6.) pool. water zone 3650 180 C7C 300 C DCA X X X 5 T 6.4 "

2650 18 0

" " " X 5 T67 "

1100 180

" a = X 5 7 6.8 " # "

O center "

X 5 Teeperature in the suppression T 6.9 pout. air zone. top 14:00 270 " " " X 4 e

T 6.10 Temperature in the suppresstorn pool, air zone,below 8010 270 " " d "

X 1.5 I

SG w P 4.1 Pressure in the blowdown line b before throttle nozzl*

_ _ co.,plete 50 bar CFA X X X 1 g

bridoe Differential pressure at the P %.2 - - "

35 bar " X X X throttle noaste 1 ap 4,3 " *# "

4 bar 20 mA X X X 1 Temperature in the blowdown line T %.1 before throttle neazie - - CTC 300 C DCA X 1 Dynamic pres.,ure in the steam Piezo-p - -

electric 20 bar

• U*

accumulatur water sone X X g transducer SG P51 Pressure in the drywell - - complete 20 ear CFA X X X  %

y bridge P 52 Pressure in the downcomer pipe. top 15550 " "

270 to bar X X 4 O

N N

P 5.) Pressure in the downconer pipe.middis- 10580 270 " "

X X  % tO l23/ 273

, . . . r KWU GKM II-M-Condensation Tests Date R 541 -Test instrumentation- 5/i'/7'

~

Measuring Location Transducer Dates Data Recording Transducer Measuring-Point Marking Level Angle Type Measuring Stock-Na Measunng OPS Visi. Magnetic Figure H (mm) it (*) Range Anphfier Channel corder Tope SG P 54 Pressure in the downcomer pipe,below 7300 270 complete 10 bar CFA X X  %

bridge P55 Pressure in the downcomer pipe,enit 3750 270 " " "

X X 4 Pressure differential between dry- a well and suppression chamber

- - har

X X X  %

0 14 51 Outgene rate in the downcomer pipe 15550 270 -

X X  %

OR 5 2 "

15550 270 -

X X 4 Indication of the swing check IX". 5.1 valve between drywell and - - -

CFA X supprension chamber

• _ 4

>4 B C. 5.2 - - - se X **'

8 T51 Temperatur e in the dr)well top - -

CTC J0O C DCA X  %

T52 Temperature in the drywelt.below - - " " "

X  %

T 5.) Temperature in the drywell. sump - - " " " X 4 Temperature in the " "

y $,$ 10500 2 70 " X f, downcomer pipe, middle T 5.6 Temperature in the d ownc ome r , e x i t 3750 " " "  %

270 X X X 4 g

.8.

p Pressure at the suppression pool wall water anna 6 50 18 0 e a ete 10 bar CFA X X X 5 bridge O N

N P 6.2 * .4150 180 " a " X X X 5

• I

) '/ f3/'?1)

. . r KWU GKM II-M-Condensation Tests Date R 541 -Test instrumentotion- "/7' Measuring Location Transducer Dates Data Recording Transducer Measuring-Point Marking Level Angle Type Measuring Stock-No. Measunng DPS %si- Magnetc Figure H (mm) 4 (*1 Range Amplifier Cronnel corder Tape r are at suppress n Pool P 6.) ,, , 3650 180 com ete no bar cra X X X 5 brido.

P 6.4 2650 300 X X X 5 P 6.5 "

2650 o " " " X X X 5 P 6.6 "

2650 90 " - " " X X X 5 P 6.7 - 1100 18 0

" " " X '

I X 5 P 6.8 " O center " " " X X X 5 a

e e.e  :":::".: :::e~"""' - m- 27e - =e r - X X X 4  ?

Air fracti a la th* "uPPr***A " " "

Ar 6.3 chamber. water zone 4150/6150 180 3.5 bar X 5 AF 6.2 "

18 0

" X 5 26 5()/6150

• 3 '

LP 5.1 Water level in the downcomer pipe 3750 90 ,

- DCA X X 5 90 " "

LP 52 4050 - X X 5 j LP 53 4450 90 - X X 5 g els

_ ea LP 5.4 6150 90 - X X 5 O

l* N N

" " = 0 LP 55 7950 90 - X X 5 194 77c 0

KWU GKM II-M-Condensation Tests Date R 541 -Test Instrumentation- "

Measuring Location Transducer Dates Data Recording Transducer Measurng-Point Marking Level Angte Type Measuring Stock-No. Measuring DPS Visi- Magnetic Figuie H (mm) 4 (*) Range Arr4Afier Channel corder Tape SG SG 6.1 Longitudinal strain.Dracine 1 6090 0 complete CFA I I x 5,6 bridge SG 6.2 Longitudinal strain.Dracing 2 6090 90 x x x 5,6 Piemo- Charge Loads due to the motion of th*

LC 6.1 water surface 0 00 270 electric

..ptifier x x x 5 transduces LC 6.2 " 0 00 270 " " x x x 5 I

(J i

un el-(

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t u k

w

, < , . . r Legend: F---Remote steam 20 bar, 300*C  ! l H---Heating steam 20 bar, 400*C (T?

D---h'ocess steam, saturated steam

[){ t c y Q{i g f: gl l W---Wa ter, toun oater X---condensate R ote d r7ndu,nf 2 r 300 c nn 250 P 4.4 +

P .1 I41 T a +

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" X =U=

T ontoo PS.1l V

.i I g Speisewasser- )' feeduater Speisewasser- tank)

"r h El

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h T 5.4 Apezpnul, L2 -{h-lie "g'b EN 5 (

behalter B202 (

beho!!er B203

' A 3 O Fla. tIr:U c j y p y) [ g T 2.1 T 1.3 O_,,, -}

O O-DN 20 T 5.20-T-E t

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nuiso __

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PM-G l'.2 + -T Superheated steam On 20 N

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on 6s g ,m.o9surfacd DN 80 g a n- cirn i 20bara300*C 3 N gg ,gg a N h2 oe o DN eo n H .- eie.1dornet 20 bor , to0*C N [ o . . .eron,o . soiioo,not E 20 w--- wouer . stadtwas ser

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Kraftwerk Union I R 541 R 541/10/79

. T 5.1 F

P S.1 T5.4 '

-l l

' T 5.2 H

T5.3 m dP5.6 T 6.9 }--a P6.9 [

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.n.: .

iiwu k.lW 270, . 90' Bull's e ye

• 180 1237 279 GKM II-M- Condensation Tests Coordinate System and Test instrumentation Fiq 3

Kraftwerk Union

. R 541 R 541/10/79

, Legend. P Pressure trensducer t T Tempercture trensducer L Wcter Lewt CR 0xygen Rete T P 5.1 T 5./.

o o T5.2 h g F m

• O W T5.3 -

umJ

!e .

^ -

j a JP5.6

}

N I T6 9

~"

l p 6.9 l

t e -'

=

T 5.b / P S.3. . ,_.

O n L6.2 0

$ P5./. % j 9

m L6.1 m h

o o T E 6/ P5.5k

+ l N

o  !

N

• m S c ,

____+

+ , ,

QI)

/ T ' i \ S06.9 I S G 630

, GKM II-M-Condensation Tests Test Instrumentation 1237 280 Fia 4

Kraftwerk Union R 541 Legend: P Pressure trcnsducer R W1@

T Thermoccuple -- -

- - ~

---LPE5 s DG D.spiccement Gcge LP Level Prebe  !

LC Lecd Cell .l ,

SG Shcin Gage 4 -

AF Air Frcction U '

o

• S

~

v

, o -

-LP S.4 m

s DG E2 006.4 .

DG E3 DGE5 O

= ,P5.3 aq - ,

! , k a

.-- LP E2 8 o

k ] { P S.5 _ i , ,g d g,o ,

l $ l f i

1 s s T 6.10 , ,

l:- -LPES$

(: . ry  ;

L C E1/ 2 3 A :_-y T 6.1 h

o . LPE4N, P E1

- o s m D G 6.4

! SG 6.1/ SG 6.2 s

b o  : 4

)T 6.2 AF s

i:3 6.1 l --LPS.3 e i  : .PE2 lR '

P5.5

-- LP51 l 0

.- @ TM  :-P S.3 /TE3 h

• co -- -

. G 6.3 /SG El. I 8

m l SG E5/ SG65 o 3 fA _[ 6.4/P65/P6.6 88 #"

l Ld  ; it B

s 6.4 l c

e N c D

o '

o -

s

% OS 62 -  !

s LS,Gj 8) ,

P&7 SG 6.7 T6.7o

__ _,u _

Section A-B 7 1 PE8' IO T 6.8 heri:e ntal,S G 6.Ss i P65 ve rtical S G6.6

~

1-eecm SG E<..verticci GK M II -M- Condensat. ion f SG6.3, hcrizontal 8

270*

[b 90' Tests

( (i_ / P 6.6 Test Instrumentation

1. . . 6 4.P 6.7 28 AF61/AF62l 180o T 6.1.. .T E4,T 6.7 l 23,fR g. 5 l

Kraftwerk Union R 541 a 541/10/79 E

0*

-~

y y\ \\\\ \ \

t 'Nxxx 9 so s.1

, .s Brccing 1

'\

270* \

-r-

HE- i- s

' t 90 s

\

i DiQ Brecing 2 N xs j ,

' V I N'a

'. . \ N N ,s s N c

180 GKMII-M-Condensation Tests Bracing Configuration 7,

Fig. 6

4 a. s .- **-

Tape Recor der Sensor 1 1 1 2 , Z g 2 3 3 a ~

3 a _.

4 E 4 c - 4 5 k 5 5 6 6 6 '

ao u

6 1l 1 I i

2 2 ' 2 .E N

" m 3 .9 3 g 3 4 E 4 5 -

4 5 E 5 3 5 4

6 2

6 6 Correlation Signal -

13 Reference Signal 34 ;g ;g ea

~ c~g s .

21 D Data Recording : Schematic Block Diagram d  ;

ua

~

g;.

m 3' N u 3

G

. A R 541/10/74 c

LEGAL NOTICE This document was prepared as a result of work

~3 sponsored by Pennsylvania Power & Light Company (PP&L) and performed by Kraftwerk Union Aktiengesellschaft (KWU).

Neither PP&L nor KWU, nor any person or firm acting on behalf of either:

, a. Makes any warranty or representation, express

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a if 2 , 1237 284 i ,"

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5 5 Kraftwerk Union

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