Text

Core Xiv Startup Program
	ML19263D355
Person / Time
Site:	Washington State University, Yankee Rowe
Issue date:	03/20/1979
From:	Henderson T; YANKEE ATOMIC ELECTRIC CO.
To:	;
Shared Package
ML19263D354	List: ML19263D353; ML19263D355;
References
	NUDOCS 7903270488
	Download: ML19263D355 (30)
	v • d • e

.

CORE XIV START-UP PROGRAM FOR

~

YANKEE ROWE T. K. IIENDERSON FEBRUARY 1979 Prepared by N

Reviewed by Reactor Engineer Approved by M

[- dyfb w

Plant Superintendent Yankee Atomic Electric Company Star Route Rowe, Massachusetts 01367

TABLE OF CONTENTS Page List of Figures, Tables iii I.

Introduction 1

II.

Sunnary of Results 4

III. Discussion of Results 5

A.

Rod Drop Tines 5

6 B.

Control Rod Group Worths C.

Ejected Rod Worths 6

7 D.

Dropped Rod Norths E.

Moderator Temperature Coefficient 7

F.

Power Plus Xenon W' orth 7

G.

Power Distribution 7

11.

Power Coefficient 8

J.

Just Critical Boron 9

ii

LIST OF TABLES, FIGURES Table Page I

Neutron Fractions 2

II Summary of Results 4

III Control Rod Drop Times 5

IV Power Coefficient Data 8

Y Group C Worth 12 VI Group A Worth 14 VII Group B Worth 16 VIII Ej ected Rod 16 Worth 19 IX Ejected Rod 16 Worth 20 X

Dropped Rod 11 Worth 21 XI Moderator Temperature Coefficients 22 Figure 1

Fuel Locations 10 2

Control Rod Locations 11 3

Group C Worth 13 4

Group A Worth 15 5

Group B Worth 18 6

MTC Results 23 7

Flux Maps 1-4, Position C-4, Det.

1, 24 8

Flux Maps 1-4, Position C-4, Det. 2 25 9

Incore Run YR.14.002 26 10 Incore Run YR.14.003 27 iii

I t

I.

Introduction i

The intent of physics testing is to measure and record various C-parameters which are characteristic of a particular core. These j

parameters are used as a basis for routine plant operation and sur-I veillance. They also serve to verify the nuclear design calcula-tions used in analyzing plant transients and accidents.

i Records are made by intentionally varying one core parameter and

~

measuring its response or the response of a second, while all others are held as constant as possibic. Variable parameters include reactivity, time, boron-10 concentration, temperatures and rod position. The desired correlations include inverse boron, tempera-ture and rod worths in units of reactivity, rod drops in time and temperatures relative to each other.

Plant chemists provided boron concentration measurements by manual titrations. Multiple samplings and repeated titrations provided a good degree of reliability in the boron data. Time, temperature and rod positions were measured with calibrated timing devices, thermo-couples and the plant lioneywell Visicorder Model 906B. Reactivity was measured with the plant's Westinghouse Solid State Reactivity Computer. The reactivity computer is a hard wired analog computer simulating the differential Inhour Equation. Delayed neutron fractions for Core XIV were computed by Westboro Nuclear Services Division (NSD) and programned into the analog.

(See Table I).

A series of tests during and after physics testing verified that the NSD delayed neutron fractions matched Core XIV and provided proof that the reactivity computer was operating with a high degree of accuracy.

O 1

TABLE I YANKEE R0WE XIV l

DELAYED NEUTRON FRACTIONS BOL, HZP, 2297 PPM FRACTION EFFECTIVE LAMBDA GROUP BETA BAR FRACTION (SIE)-1 1

.00019200

.00018965

.01251 2

.00136001

.00134730

.03056 I

3

.00124407

.00123098

.11473 4

.00254986

.00252087

.30849 5

.00087157

.00086348 1.16089 6

.00031146

.00030863 3.04793 BETA EFFECTIVE =

.006461 l

BETA BAR =

.006529 I BAR =

.9896 PRGIFF NEUTRON LIFETIME = 18.29 MICROSECONTS STARIUP RATE PERIOD REACTIVITY (DECADES / MIN.)

(SEC.)

(PERCENT)

.100 260.6

.0269

.500 52.1

.0974 1.000 26.1

.1512 1

2.606 10.0

.2469

~

This calculation asstunes a Core XIII end of life cycle average burnup of 12650 MWD /MIU.

Core XIV is loaded with 40 new Zircalor clad fuel assemblies around the perimeter of the core (see Figure 1).

36 partially burned Zircaloy assemblics make up the middle.

24 control rods divided in four groups are arranged per Figure 2.

Fuel assembly positions,eere verified by undelvater television and videotaped following refueling and prior to vessel reassembly.

3 II Sts: nary of Results l

Table II summarizes the measured parameters. Predicted values from Yankee Rcwe Core XIV License Submittal are provided for comparison.

TABLE II Test Measured Worth Predicted Worth hierance

(% AK/K)

(%)

Group C Differential 1.588 1.63 7.5%

Group A Differential 1.47 1.47

7. 5 Group B Differential 2.80 2.95 7.5 Ejected Rod 16 (C in)

.626

.61 15 Ejected Rod 16 (C + A in)

.797

.84 15 Dropped Rod 11

.373

.34 Just Crit. Boron (ARO) 2251 2297 10 Just Crit. Boron (C in) 2031 2040 10 Just Crit. Boron (C + A in) 1828 1820 10 Power + Xenon Defects 3.56 3.51 Power Coefficient

.00147%f/ F

.00167%/'/ F 25%

Rod Drop Times

<2.5 sec. per T.S. 3.1.3.3 i

G 4

III. Discussion of Results A.

Control Rod Drop Time Control rod drop times measure the interval from the moment power to the control rod latching mechanism is cut to the moment each control rod reaches the 6 inch coil. Drop times are measured with Tave 515 F and all four main coolant pumps operating. An oscillo-graph provides a pennanent record.

e' The average drop time was 1.58 seconds. This represents a small I

improvement over previous tests. Table III details the individual drop times.

Just prior to the drop test, an operability check was performed by moving each group in turn from 0" to 90" to 0" and verifying control rod movement by the rod position indicators.

l I

TABLE III Control Rod Drop Times Control Rod Drop Time - Seconds 1

1.42 1.52 2

1.64 3

1.68 4

1.51 5

1.44 6

1.52 7

1.71 8

1.70 9

1.61 10 1.48 11 1.74 12 1.49 13 1.66 14 5

l Control Rod Drop Times Control Rod Drop Time - Seconds 15 1.48

+

i 16 1.66 l

17 1.50

^

18 1.62 19 1.65 I

20

1.84

~

I 21 1.48 22 1.56 l

23 1.51 t

24 1.54

~

Average 1.58

liighest B.

Control Rod Group h'orths Differential worths of groups C, A and B were measured. The technique I

used a constant dilution rate ( N 15-20 gpm). The reactivity change due I

to the dilution was balanced by inserting control rods at intervals which l

allowed the reactivity to vary fra plus to minus 10 pcm A K/K. The effect was to create a saw toothed graphical measurement of differential group worth. The results are depicted in Figures 3, 4 and 5 and Tables V, VI and VII.

h.

i t

l l

C.

Ejected Rod Worths The ejected rod condition is defined as a single control rod forced out and held out of the core by coolant flow following a complete severance of a control rod housing.

The technique used is similar to group worth measurements. A small dilution rate was used and the highest worth rod in the group is used to compensate for the reactivity change. The resulu can be evaluated to measure worth.

(See Tables VIII and IX).

6

D.

Dropped Rod Norths The dropped rod condition is defined as a singic control rod dropping into the core while the rest remain withdrawn. Dropped rod conditions were evaluated using the dilution balance technique described above.

'lhe results are shown in Tabic X.

E.

hfoderator Temperature Coefficient (hifC)

The moderator temperature coefficient is measured at various boron con-centrations. Rods are moved to compensate for the boron concentration changes instead of the burn-up compensation during normal operation. Con-sequently the measured bifC must be corrected for rod insertion. This can be seen in Figure 6.

hifC is measured by varying the moderator temperature and measuring the corresponding reactivity change with the computer. A linear least squares correlation yields the hffC. Table XI lists the measurement results and they are plotted on Figure 6.

F.

Power Plus Xenon Worth An integral measurement of the combined worths of power and Xenon was made by canparing the hot Zero power conditions to hot 96.5% power. The A boron concentration worth plus the A temperature worth yicids the combined power and Xenon worth. For this test the change was from 2220 ppm boron, 523 F at Zero power to 1638 ppm, 531.5 F at 96.5% power.

G.

Power Distribution A power distribution map was attempted with power < 10',.

Ilowever, the results were meaningless due to the very low flux.

A second map was measured at 255. power to check for gross guadrant tilt. The results were:

.9808 1.0097

.9673 1.006,

.9967 1.0020

' All 1.0163

A third power distribution map was measured at a steady state 58% power and a fourth at a steady 86.5% power to verify thermal-hydraulic and nuclear param< ;ers. See Figures 7-10 for analysis of the four power distribution maps.

II.

Power Coefficient The power ordoppler coefficient is defined as the reactivity change per degree Fahrenheit (A// F) change in average pellet temperature.

It is derived fran data sets taken during the first power ascension of the core.

The following is a chronology of events aid tabulation of data sets used in calculating power coefficient.

I i

i Chronology:

At 2 PM on 12/21/78 the plant was at hot zero power I

I (IIZP) and ready to load. Loading to nominal 60% power i'

took 38 hours4.398148e-4 days 0.0106 hours 6.283069e-5 weeks 1.4459e-5 months and was then held for 31 hours3.587963e-4 days 0.00861 hours 5.125661e-5 weeks 1.17955e-5 months . At 83 i

I hours the load was at nominal 70% power.

I TABLE IV Data Sets 1

2 3

Time (hours) 0 69 114 Time (clock) 2 PM 11 AM 8 AM j

Time (date) 12/21/75 12/24/75 12/26/78 Tave 523 F 516.5 F

' 510 F Group C 817 87 865 Group A, B, D 87*

87*

87" CB (M.C.)

2220 1832 1810 power (ave) 0 348.9 418 Reduction of this data yicids a power coefficient of 1.47 x 10-5 A K/K at an average 65% power.

8

J.

Just Critical Boron Just critical boron concentrations were measured at conditions as close as possibic to all rods out, Group C inserted and Groups A and C inserted.

The small deviations from those prescribed conditions were converted to boron equivalcnce in reactivity and addeo or subtracted for comparison with predicted values.

4 0

0 9

REA CTOR CORE xlV FUEL L OCATIONS - 80 L

~

3-h i:

A B

C D

Ey F G

H J

K

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3 2 xXX XX X/

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. XX XX 4

et XX X_4 X

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XX XX i

o

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" _. 11.., _ g i

' " =r1r -

j Figure 1

""""c-*

10

YANKEE ROWE CON 1ROL ROD GROUPS l

i A

B C

D E

F G

H J

K I f l

/

1 ls e

17 1

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=K

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=;z;;;

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=]'=

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/0 AL l

Key:

A - Group "A"

B - Group "B"

C - Group "C" D - Group "D"

Figure 2

~'-

11

O TAEU2 V O

T_

YANKEE ROWE a

i GROUP C WORTH FROM PHYSICS TESTING OF DECEMDER 19 1978 4

TOTAL INTEGRAL WORTH OF GROUP C IS 1.5831 %

~-~VERAGE'~~

DELTA ~ ~ ' ~ ~DIFF. ~~TNTEGRAL' INTEGRAL ~~ !

A

~

INITIAL ~~~~ FINAL' ~ DELTA

(

.I HEIGHT HEIGHT HEIGHT HEIGHT RHO WORTH WORTH WORTH INCHES JNCHES INCHES PCM PCM/ INCH 0 TO 90 90 TO O

~

T INCHES _ _ _. _

[

90 70.875 11.125 84.4375 59 5.30337 59 1588.1 78.875 73.875 5

76.375 50.3 10.06 109.3 1529.1

~ 56.1 1478.8

-~~ 6.8 -

~12.48 1

- 73.075~ ~70.125

~ 3.75 -

72' 4

70.125 66.75 3.375 68.4375 49 14.5105 205.1 1432 4,

(y 66.75 63.375 3.375 65.0625 54.7 16.2074 259.8 1383 u

s 53T375 607375 3

61.075 52.2 17.4 312 1328.3 60.375 58.125 2.25 59.25 42 18.666/

354 1276.1

() o 1234.1 s

50 125 56.25 1.875 57.1875 36 19.2 390

~1198.1 56.25 54.75 1.5 55.5 30 20 420 (J

54.75 52.875 1.875 53.0125 38.0 20.6933 458.8 1168.1 i-52.875 51 1.075 51.9375 40.6 21.6533 499.4 1129.3 ~~

m 51 49.5 1.5 50.25 34.5 23 533.9

'~ 1088.7

()

49.5 48 1.5 48.75 35.5 23.6667 569.4 1054.2 l'

-1 48 46.5 _

1.5 47.25 __~37.3 24.8667 606.7 1018.7

~

~!

38.5~~-'2$.6667~ ~~ 645.2

~ 901.399

_g _. _ _ _ _ _

jg 1

45 43.075 1.125 44.4375 30.3 26.9333 675.5 942.899 d

d 43.875 42.375 1.5 43.125 40.8 27.2 716.3 912.599 42.375~~40.075 ~~ 1.5 41.625 41.9 27.9333~

'758.2 871.799 a g) b 40.875 39.375 1.5 40.125 43 28.6667 801.2 829.9 I

39.375 37.875 1.5 38.625 43.1 28.7333 844.3 786.9 n

u 37.875 36.375 1.5 37.125 43.5 29 887.799 743.8 I

36.375 34.125 2.25 35.25 66.3 29.4667 954.099 700.299

() S(q 34.125 33 1.125 33.5625 34.8 30.9333 988.899 634 t

33 31.5 1.5 32.25 46.1 30.7333 1035 599.2 I

}

31.5 30 1.5 30.75 47 31.3333 1082 553.1 C) n 30 20.875 1.125 29.4375 35.5 31.5555 1117.5 506 1 28.075 27.75 1.125 28.3125 35 31.1111 1152.5 470.6

() w 27.75 26.625 1.125 27.1875 34.2 30.4 1386.7 435.6 26.625 25.125 1.5 25.875 43 28,6667 7.7 401.4 e

25.125 24 1.125 24.5625' 131.2- '- 27'.7333 f.9

~ 358.4

~~~

~

24 22.075 1.125 23.4375 31.1 27.6444 1292 327.2

()

e Z

22.075 21.375 1.5 22.125 39.9 25.9333 1330.9 296.1 21.375 19.075 1.5 20.625 36.5 24.3333 1367.4 257.2 19.875 10.375 1.5 19.125 33.5 22.3333 1400.9 220.7 l ()

q~. _.___18. 3 7 5.._16.075 _.1.5 17.625 _ 31.0_

21.2__

__1_432.7 187.2 f

16.075 15 1.075 15.9375 34.1 18.1867 1466.8 155.4 u

15 12.75 2.25 13.875 35.6 15.0222 1502.4 121.3 l ()

12.75 10.125 2.625 11.4375 33.7 12.8301 1536.1 85.7 a

a 10.125 0

10.125 5.0625 52 5.1350 1588.1 52 O d b

.4it d_._.__________._.____

,s GROUP C DECEMBER 19 1970 12

Figure 3 Croup C Integral k' orth (%)

l l

IfrIEGRAL k' ORTH

(% rho) 8 8

8 R

8 a

g g

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13

TABIE VI t.

-l YANKEE ROWE

'l~~~

GROUP A WORTH FROM PHYSICS TESTING OF DECEMBER 20 -1970 ~

~~ ~ ~ ~ ~ ' ' ~ "

~

l' TOTAL INTEGRAL WORTH OF GROUP A IS 1.4712 %

-l INITIAL FINAL DELTA AVERAGE DELTA DIFF.

INTEGRAL INTEGRAL

,1 HEIGilT HEIGHT HEIGHT HEIGHT RHO WORTH WORTH WORTH

' INCHES INCHES INCHES INCHES PCM PCM/ INCH O TO 90 90 TO O il e

.q

-~ga,5 ~

~~77.625 90 82.5 7.5 86 25 41 5.46667 41 1471.2

'c

~ ~.875

-~ 80.0625 48.~5 9.94872 ' ' -89. 5~ ~

1430.2 - ' '

4 (1 m 77 625 73.5 4.125 75 5625 47.4 11.4909 136 9 1301.7 d

73.5 69.375 4.125 71 4375 46.9 11.3697 103.8 1334.3 M

69.375 66.375 ~~3

-~~67.~ 0 75 44.3

14. 7667 228.T ~~~~1287. 4 ' '-

(?

66.375 63.375 3

64 875 48.2 16 0667 276.3 1243.1 63.375 61.125 2.25 62 25 37.8 16.0 314.1 1194.9

~~~

~61~.125 -~58.875 2 25

~~~ 6'O ~ ~ ~ 37.9-16~. 04 4 4 ~~ 3 52' ' ~

'~'1157.1

~

(). ~c 58.075 56.25 2.625 57.5625 48 18.2857 400 1119.2 56.25 54.5 1.75 55 375 35.5 20.2857 435.5 1071.2 L.5 52.075 1.625 53.6075 31.4 19.3231 466.9 1035.7 (j

52.075 51 1.075 51 9375 39.6 21.12 506.5 1004.3 E.

51 49.5 1.5 50 25 33 22 539.5 964.699 49.5 48 1.5 48 75 34.2 22.8~ ~ ~ ~573'.'7'

~~931.699

~

e 40 46.5 1.5 47.25 35.8 23.0667 609 5 897.499 gr) 4 46.5 45 1.5 45.75 36.8 24.5333 646 3 861.699 n

E

-~~ 45 - - -~ ~ ~4 3. 5 15 44.25 37.2 24.0 ~~~~683.'499824.89/~

a IC) a 43.5 42 1.5 42 75 37.7 25.1333 721.199 707.699 G

42 40.5 1.5 41.25 38.8 25.0667 759.999 749.999 n ~~ 40.5 ~~~39.375

~

~~ T125~~~39.9375

~29.9~

26.5778' 789.899 '711.199 1

~

() y 39.375 38.25 1.125 38.0125 30.4 27.0222 820.299 601.299 a

30.25 37.125 1.125 37.6075 30.3 26.9333 850.599 650.099 37.125 36

~ ~ ~F.T2 5~

1675625~30.3 ~

'26.9333~

880.'899'~620.599 C) b(*

~

36 34.075 1.125 35.4375 30.5 27.1111 911.399 590.299 4

34.075 34.125 0.75 34.5 19.2 25.6 930.599 559.799 34.12D 33 1.125 33.5625 31.7 20.1778 962.299 540.599

()y 33 31.875 1.125 32.4375 31.9 20.3555 994.199 500.9 31.075 ~ 29.625 1.125

~~ 31.3125 32.2 20.6222 1026.4 477 30.75 1.125 c

30.75 30.1075 32.2 28.6222 1050.6 444.0

()E n

29.625 28.5 1.125 29.0625 30.3 26.9333 1088 9 412.6 20.5 27.375 1.125 27.9375 30.7 27.2889 1119-6 302.3 27.375 26.25 1.125 26.0125 29.6 ~ ~ -26'.3111 ~

1149..? ~ 351.6 n

()

26.25 25.125 1.125 25.6075 28.9 25.6r99 1178.1 C22 u

E 25.125 24 1.125 24.5625 27.9 24 22'.075 1.125

' 23.4375 27.3 ~

24.0 1206 293.1

~~ ~

24.2667 ~~ 1233.3 ~ 265.2

(

t 22.075 21.375 1.5 22.125 33.7 22.4667 1267 237.9 a

21.375 19.875 1.5 20.625 31.2 20.0 1298 2 204.2 19.875 18.25 1.625 19.0625 28.3 17.4154 1326.5 173 n

(*

18.25 16.5 1.75 17.375 30.0 17.6 1357.3 144.7

'j 16.5

_14.25 2.25

.15.375

_31.6 14.0444

_1380.9 113.9 14.25 10.075 3.375 12.5625 37.3 11.0510 1426.2 02.3 7 1 10.070 0

10.075 5.4375 45 4.13793 1471.2 45 5'

f 6

14 t

Figure 4 Group A Integral Worth (%)

i t

Integral Worth (% rho) 8 8

8 8

8 A

A A

A d

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1 15 l

TABIE VII YANKEE ROWE GROUP B WORTH FROM PHYSICS TESTING OF DECEMDER 20 1978

[

- ~ - - ~ ~ ~ ~ ~ ~

~ ~ ~

4 TOTAL ~ INTEGRAL' WORTH OF GROUP D IS 2.00209

%~~~~

s INITIAL FINAL DELTA AVERAGE DELTA DIFF.

INTEGRAL INTEGRAL 5

i ~ ~ ~ ~ HEIGHT

'HFIGHT' HEIGHT ~~ HE I G H T ' ~ ~ ~ 'R H O ' ~~ ~~ W O R T H WORTH WORTH INCHES INCHES INCHES INCPFS PCM PCM/ INCH 0 TO 90 90 TO O e

n 79 76.375 2.625 77.6875 35.5 13.5238 151.5 2606.09 G

76.375 73.375 3

,4.075 44.3 14.7667 195.8 2651.39

~

73.375 70.75' 2.62572.0625' 42.6- ~ ~ ~16.2206 230.4 ~-2607.1 -

70.75 68.5 2 25 69.625 40 17 7778 270.4 2564.5 67.375 43 19.1111 321.4 2524.49 60.5 66.25 2.25

-65.3125~3 0

~~-

0.2667 3 5 9. 4"~~~~ 2 4 01. 4 9 ~

2 66.'25 - ' ~ ~64.375~

1.075 a

() h 64.375 62.5 1.875 63.4375 39.9 21.28 399.3 2443.49 61.5625 41.7 22.24 441 2403.6 5

62.5 60.625 1.875~~~

59.6875~

~44.4 ~~~~~23 60- ~4G5.4

~~2361.89 ~

~~.875

~

i

~~'60.62T 50.75~

1

()

50.75 56.075 1.875 57.8125 47 1 25 12 532.5 2317.5 f,

56.075 55 75 1 125 56.3125 20.9 25.6089 561.4 2270.4 ~

55.75 54.625 1.125 55.1875 31 27 5553 - '592.4 ~~'2241.5

~

s 54.625 53.5 1 125 54.0625 31 2 27.7333 623.6 2210.5 (j s 5

53.5 52.375 1.125 52.9375 32.6 28.9778 656.2 2179.3 52.375 51.25 1 125 51.0125 34 30.2222 690.2 2146.7 51.25 49 75_

1.5 _ __

50.5 _ _. ;49 32.6667 739.199 2112.7 g ()

d 49.75 40.25 1.5 49 52.1 34.7333 791.3 2063.7 n

s 48.25 46.75 1.5 47.5 54 1 36.0667 845.399 2011.6 73 6 46.75 45.625 1.125 46.1875 42.2 37.5111 887.599 1957.5 t

E 45.625 44.5 1.125 45.0625 44.2 39.2089 931.799 1915.3 44.5 43.375 1.125 43.9375 45.6 40.5333 977.399 1871.1 u

43.375 42 25 1.125 42.8125 46.6 41.4222 1024 1825.5

() n e

42.25 41.125 1.125 41.6875 48.2 42.8444 1072.2 1778.9 41.125 40 1.125 40.5625 51 45.3333 1123.2 1730.7 a

40 30 075 1.125 39.4375 53.5 47.5556 1176.7 1679.7

()D 30.075 37.625 1.25 30.25 55 44 1231.7 1626.2 s

37.625 37 0.625 37.3125 30 3 61 28 1270 1571.2

() @

37 36.25 0.75 36.625 30.1 50.8 1308.1 1532.9

___ O.75_ _ _ 35.875_

38_.8 _ _ 51.7333 _ 1346.9 _ 1494.8__

35.5 F_

_36.25 _

34.75 0.75 35.125 39.8 53.0667 1306.7 1456 o

35.5 34.75 34 0 75 34.375 41 54.6667 1427.7 1416.2 (3 3 4.-

34 33.25 0.75 33.625 42.6 56.0 1470.3 1375.2 b

33.25 32.5 0.75 32.875 44.3 59.0667 1514.6 1332.6

() @

32.5 31.75 0.75 32.125 45 5 60.6667 1560.1 1288.3 u

31 30.25 0 75 30.625 46.6._._61.3333. 1606.1 1242.8 _

_ __31.75 _

31_

._ 0.75

_ 31.375 _ 46 e

62.1333 1652.7 1196.8 30.25 29.5 0.75 29.875 45.9 61.2 1698.6 1150.2

() r 29.5 20.75 0.75 29.125 47.9 63.8667 1746.5 1104.3 a

20.75 28 0.75 28.375 40.9 65.2 1795.4 1056.4 y

28 27.25 0.75 27.625 49.3 65.7333 1844.7 1007.5 1894.2 958.2

~

~ ~ ~

26.5 25.75^

0.75 ~~ ~ 26.125 50 ~ ~ ~ ~ ' ~66 27.25 26.5 0 75 26.075 49 5 66.'666'I~ ~1944.2

'900.699 a

25.75 25 0.75 25.375 49.7 66.2667 1993.9 050.7 25 24.25 _ O.75_

_ 24.625 _ 49. _ _65 3333 _2042,9 809 o

24.25 23.5 0.75 23.075 47 0 63.7333 2090.7 760 23.5 22.75 0 75 23.125 40.5 64.6667 2139.2 712.2

/!

w (l____22.75 22 0.75 22.375 46.8 62.4 2106 663.7

( 't

-continued-16

TABLE VII (cont.)

I l

INITIAL FINAL DELTA AVERAGE DELTA DIFF.

INTEGRAL INTEGRAL I

liEIGHT HEIGl1T HEIGilT HEIGHT RHO WORTH WORTH WORTH e

I' INCilES INCHES

. INCHES INCHES PCM PCM/ INCH O TO 90 90 TO O

,'l 22 21.25 0.75 21.625 46 61.3333 2232 616.9 21.25 20.5 0.75 20.875 45 60 2277 570.9 20.5 19.75 0.75 20.125 43.3 57.7333 2320.3 525.9 19.75 19 0.75 19.375 41.6 55.4667 2361.9 482.6 19 18.25 0.75 18.625 39.4 52.5333 2401.3 441 18.25 17.5 0.75 17.875 37.1 49.4667 2438.39 401.6 17.5 16.75 0.75 17.125 33.6 44.8 2472 364.5 16.75 15.625 1.125 16.1875 48.8 43.3778 2520.79 330.9 15.625 15.25 0.375 15.4375 16 42.6667 2536.79 282.1

,,"J 15.25 14.5 0.75 14.875 29.2 38.9333 2565.99 266.1 14.5 13.75 0.75 14.125 27.6 36.8 2593.59 236.9 13.75 13 0.75 13.375 26.5 35.3333 2620.09 209.3 13 11.875 1.125 12.4375 32.2 28.6222 2652.29 182.8 l

11.875 11.125 0.75

__11.5 19.8 26.4 2672.09 150.6 11.125 5.5 5.625 8.3125 102.5 18.2222 2774.59 130.8 5.5 0

5.5 2.75 28.3 5.14545 2002.89 28.3 GROUP D

^"~

~ DECEMDER 20 ~ 1978

~~ '

~~

~

l G

- + -

--m--

.. - + -

i.-.

e

--,m ew.

.m m

W

..m e

e 5

e 17

i Figure 5 GroupBVorth(Intrgral%)

IntegInl Vorth (% rho) 8 8

6 8

g a

4 o

o

,s

\\

8 e

k

\\

R

\\

t

\\

l I

\\

S

\\

l m

i h

\\

e s

a

[

\\

E$

M

\\

5 8

i 5

m g

h

\\

ox i\\

30

'h

\\

x

=

x a

['

\\

N

\\

l

\\

Re R

=

'g

\\

\\ \\

o N

T g l_

l s

\\

b

\\,

s

\\\\

l l

O 9

6 9

e 18

')

TABIE VIII O

YANKEE ROWE f

2 I

EJECTED ROD 1 16 WORTH FROM PHYSICS TESTING OF DECEMBER 20 1978

~

TOTAL INTEGRAL WORTH OF EJECTED ROD 1 16 IS 0.797679 % (C & A in) 7 INITIAL FINAL DELTA AVERAGE DELTA DIFF.

INTEGRAL INTEGRAL

(' i HEIGHT HEIGHT HEIGHT HEIGHT RHO WORTH WORTH WORTH s

INCHES INCHES INCHES INCHES PCM PCM/ INCH 0 TO 90 90 TO O

'O

(,) R 90 76.5 13.5 83.25 56 4.14815 56 797.7 iI 76.5 71.25 5.25 73.875 45.1 8.59047 101.1 741.699 71.25 66.75 4.5 69 42.6 9.46667 143.7 696.6

(' 5 66.75 63.375 3.375 65.0625 35.7 10.5778

79.4 654 o

63.375 60 3.375 61.6875 38.8 11.4963 218.2 618.3 e

60 57.375 2.625 58.6875 31.6 12.0381 249.8 579.5 O G 57.375 54.75 2.625 56.0625 33.7 12.8381 283.5 547.9 7

54.75 52.5 2.25 53.625 29.1 12.9333 312.6 514.2 A

52'.5

--- 50.25 2.25 51.375 31.2 13.8667 343.8 485.1

~

50.25 48 2.25 49.125 32.8 14.5778 376.6 453.9 O a 48 45.75 2.25 46.875 33.5 14.8889 410.1 421.1 a

45.'75 43.5 2.25 44.625 32.8 14.5778 442.9 387.6~

() n 43.5 40.875 2.625 42.1875 39.3 14.9714 482.2 354.8 i.

40.875 30.25 2.625 39.5625 38.8 14.7809 521 315.5 38.25 32.25 6

35.25 81.5 13.5833 602.5 276 7 30.5625 42.7 12.6518 645.2 195.2 gO L 32.25 28.875 3.375 ~~

27-42.4 11.3067 687.6 152.5 d

F 28.875 25.11:.,

~3.75 a

25.125 22.125 3

23.625 28.9 9.63333 716.499 110.1 22.125 16.125 6

19.125 42.2 7.03233 758.699 81.2

_*0 6

16.125 3

13.125 9.5625 39 2.7/143 797 699 39 r

O 3]

S 15*

Q n.

~

n 3?

O E

.a EJECTED ROD 8 _16 _.

DECEMDER 20 1978 __.__.

O y a) a O s we-m._we. s=

mm d%

4' a

k

-._e.

e. - -

Oa G

9 O

i!

TABIE IX

'2 t

YANKEE ROWE EJECTED ROD 1 16 WORTH FROM PHYSICS TESTING OF DECEMBER 19 1978

(

TOTAL INTEGRAL WORTH OF EJECTED ROD 4 16 IS 0.626399 %

(Cinl) i 7

INITIAL FINAL DELTA AVERAGE DELTA DIFF.

INTEGRAL INTEGRAL

'! i HEIGHT HEIGHT HEIGHT HEIGHT RHO WORTH WORTH WORTH i

INCHES INCHES INCHES INCHES PCM PCM/ INCH

'O TO 90 90 TO O (s

90 75 15 82.J 32.4 2.16 32.4 626.399

}

75 __

68.625 6.375 71.8125 32.5 5.09804 64.9 594 o

68.625 64.125 4.5 66.375 27.2 6.04444 92.1 561.5 r)

,~i 64.125 60 4.125 62.0625 29.2 7.07879 121.3 534.3 60 56.25 3.75 58.125 30.6 8.16 151.9 505.1 e

56.25 53.25 3

54.75 28.6 9.53333 180.5 474.5

() 7 53.25 50.625 2.625 51.9375 26.3 10.019 206.8 445.9 a

50.625 48.375 2.25 49.5 24.6 10.9333 231.4 419.6 G ~~ ~~ ~M8!375~~~ 46.125~~~2.25 47.25 25.8 11.4667 257.2 395

~

(I t d 46.125 43.875 2.25 45 26.8 11.9111 284 369.2 E

43.875 42 1.875 42.9375 22.5 12 306.5 342.4 E -~ ~42 ~~~

40.125 1.875 41.0625 22.1 11.7867 328.6 319.9

()

-10.125 38.25 1.875 39.1875 23.4 12.48 352 297.8 d.3 38.25 36.375 1.875 37.3125 23 12.2667 375 274.4 n

36.375 34.5 1.C,5 35.4375 21.4 11.4133 396.4 251 4 g() 5 34.5 32.625 1.875 33.5625 23.3 12.4267 419.7 230 o

n 32.62G 30.75 1.875 31.6875 22.8 12.16 442.5 206.7 3

s

~

30.75 28.875 1.875 29.8125 22.2 11.84 464.7 183.9 305 28.875 27 1.875 27.9375 21.8 11.6267 486.5 161.'/

f 27 25.125 1.875 26.0625 20.2 10.7733 506.7 179.9 p-25.125 22.075 2.25 24 22 9.77778 528.7 119.7 (jfT 22.875 20.25 2.625 21.5625 24 9.14286 552.7 97.7 6

20.25 16.875 3.375 18.5625 25.4 7.52593 578.099 73.7 N

16.875 13.5 3.375 15.1875 21 6.22222 599.099 48.3 OG 13.5 10.125 3.375 11.8125 12.5 3.7037 611.599 27.3 n

10.125 0

10.125 5.0625 14.8 1.46173 626.399 14.8 e

og

(.

2 O lddj C)dG 47-~~~ EJECTED ROD E ~16 DECEMBER 19 1978 of j.__

<s~b

[

< L u

t u.'

20

,q

TABLE X

[i YANKEE ROWE E

3 DROPPED ROD 4 11 WORTH FROM PHYSICS TESTING OF DECEMBER 19 1970 T"TAL INTEGRAL WORTH OF DROPPED ROD 1 11 IS 0.3732 %

i 7

idITIAL FINAL DELTA AVERAGE DELTA DIFF.

INTEGRAL INTEGRAL i

HEIGHT HEIGHT HEIGHT HEIGHT RHO WORTH WORTH WORTH e

INCHES INCHES INCHES INCHES PCM PCM/ INCH O TO 90 90 TO O f

0 78 12 84 23.6 1.96667 23.6 373.2 5

7d 70.75 7.25 74.375 29.5 4.06897 53.1 349.6 70.75 64 6.75 67.375 32.3 4.78518 05.4 320.1

(

G 64 56.875 7.125 60.4375 40.6 5.67824 126 287.8 56.875 51.625 5 25 54.25 31.4 5.98095 157.4 247.2 51.625 47.125 4.5 49.375 29.3 6.51111 186.7 215.8 O a 47.125 41.875 5 25 44.5 32.2 6.13333 218.9 186.5 37.375 4.5 39.625 28.3 6.28889 247.2 154.3 5

41.875 ~ 32.5

~~~4.875

'34.9375~'27.7- - ~ ~ ~ 5.68205 ~~ ' 274.9

~--126

~~~

37.375'

~

9 32.5 27.25 5.25 29.875 27.8 5.29524 302.7 98.3 (i

- c 27.25 22.375 4.875 24.8125 24 4.92308 326.7 70.5 22.'375~~~~ ~14'.5~

7'~875~

~18.4375 ~ 27.~5

~~3.49206~

354.2 46.5

~

(). - '

14.5 9

5.5 11.75 12 2.18182 366.2 19

!a 9

0 9

4.5 7

0.777778 373.2 7

dO h k

O Cr.

.._7./.. __ _ _ _

3 s.

()

,, 'a' DROPPED ROD t 1~1 DECEMBER ~~f9 1978~

~

t G

3*

4

~

o O b 4

O C

4, "I

43

l..

(

k)

) I..

e. -

es..

,,.,w.

---_._.es 4

(^~

21

TABIE XI

_ YANKEE ROWE MODERATOR TEMPERATURE COEFFICIENT (MTC)

FROM PHYSICS TESTING DATA 0F 1978 RUN 4 RODS

_ _ _. TEST MODE

__ TEST DATE..

_ MTC (,"CM/DEG) i 1

ARO COOLDOWN 12 s 10

-3.09904 L

a 2

ARU HEATUP 12 / 18

-2.04804 3

ARD COOLDOWN 12 / 18

-2.70493 4

ARO HEATUP 12 / 18

-2.48914 5

ARO HEATUP 12 / 18

-2.38864

.- - -... C 0 0.- --

.---.HEATUP

... -6.31327 12 / 19 6

8 C00 HEATUP 12 / 19

-U.47952 12 / 19

-3.19167 9

C00

._ COOLDOWN 12 / 19

-4.92367 10 C00 HEATUP 11 C00 COOLDOWN 12 / 19

-3.30939 12 CSA 0 0'

~

COOLDOWN 12 / 20

-8.17636' 13 CSA 0 0 HEATUP 12 / 20

-10.0835 CZA 0 0 COOLDOWN 12 / 20

-8.37108 14 C&A 0 0 HEATUP 12 / 20

-9.85585 15 16 CSA 0 0 COOLDOWN 12 / 20

-8.72083 H E A T U F_'_ _

12 / 20

-9.53326 17 C&A 0 O e

e

._m-m j

i O

22

Figuro 6 Moderator Temperature Coefficient (MTC)

BOL, HZP, Tave, No Xenon, Peak Samarium

+-

t-+ t *- +t41

- t4-A

+

+44 I ka*

+ + + + -

+4-4

[4 7-4+A-

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4-f +-I- +.4 ta-- 4-+t,-

a 6

+.+

9.b p+

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+-+-

-*-*-+- +44f

.74 +H.4-+-+j4..L+4 9

++4-+- +y++f g

- +

49 t-*-+-*

Ak-64-" t+44

d-*-*~ i I

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+

f

' l 44-,-4---.4'

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++4 -.-6 4-v

., - +, - -t- -.* 4

+ k +-*--+ 1 t * - Ltd 4-l i-t-t t 4+,-

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E p

t u'.,'

--t-*-* k a-2,t T-+

, 4 1- *

+4-+-.

l

$g-- 49 1-s trH -t-'4

_a

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1

+-~4--*-t H4+

j

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l

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p t,-

M-r

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o

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+. L9

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+

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3

~~i....~~

~~0 13 2]~~

~~33 4]~~

~~53 6J 7) 83 3)~~

~~OISTANCE (INCHES 1 1~~

J

~~FIGURE 9 COMPARISON OF MEASURED AtlD THEORETICAL SIGilALS INCORE RUN YR-14-002 150.0 NUT. GROUP C AT 85.5 INCHES 0.~~

~~MWD /HTU i~~

~~i MEASURED SIGNAL~~

~~.602 THEORETICAL SIGNAL~~

~~.610 PERCEllT DIFFEREilCE~~

~~-1.325 l~~

~~1.097 1.129~~

~~-2.029 1.016 1.096~~

~~-7.377 1.100 1.114 1.096 1.106~~

~~.375~~

~~.676~~

~~.671 1.131~~

~~.657 1.102 j~~

(

~~2.260 2.594 8~~

~~1.119 1.102 1.545~~

~~.920 1.118 1.112~~

~~.960 1.106 1.096~~

~~-3.303 1.039 1.433 1.092 1.128 1.096 1.105~~

~~.402 2.146 1.143 1e 1.129 1.254 1~~

~~.630~~

~~.610 3.262 AVI RAGEli ADSOLUTE DIFFERENCE DETWi.EN t1EASURED AND TilEORETICAL 2.121 PERCEilT RMS ERROR 2.700 26~~

~~FIGURE 10 COMr*ARISull 0F MEA'SURED AND THEORETICAL SIGNALS INCORE RUN YR-14-003 348.9 MWT. GROUP C AT 07.0 INCliES~~

~~45. MWD /MTU i~~
\\
tEASURED SIGNAL
.596 Tf.ORETICAL SIGilAL
.618 P.RCEilT DIFFERENCE
-3.534 1 091 e
1.127
-3.101 1.060 1.094
-2.399 1.033 1.090 1.094 1.104
.990
.496
.600 1.106
.663 1.100 2.65Y
.520 1.103 1.100
.220
.994 1.125 1.087
.962 1.104 1.094 3.205 1.924
.597 1.089 1.112 1.094 1.102
.426
.896 1.131 1.127
.39S
.636
.610 2.993 I
AVERACLI8 AltSilLU TE DIFFERENCE DETHEl'N 11EASURCII AN!! TilEORE TICAL 1.635 PERCENT RMS ERROR 2.032 27
- ~...w~_.
. ~. ~ - - ~--.~ - o....v :.< :. ~~r _.~ ~~ ~~~.--?.._.......~.-.~~ >..
_.-.,...~~.
..,. _......w..........a..
m
.:

ML19263D355

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