Text

Summary of 930209 Meeting W/Util Re Proposed Change to Plant V(Z) Analysis
	ML20034G425
Person / Time
Site:	Prairie Island
Issue date:	02/26/1993
From:	Gamberoni M; Office of Nuclear Reactor Regulation
To:	; Office of Nuclear Reactor Regulation
References
	NUDOCS 9303090493
	Download: ML20034G425 (63)
	v • d • e

e --

February 26, 1993 Docket Nos. 50-282 and 50-306 LICENSEE: Northern States Power Company FACILITY:

Prairie Island Nuclear Generating Plant

SUBJECT:

DISCUSSION OF PROPOSED CHANGE TO V(Z) ANALYSIS A meeting was held on February 9,1993, between the NRC staff and Northern States Power (NSP) staff to discuss a change in Prairie Island's V(z) l analysis. V z) is an axially dependent function applied to the equilibrium measured F/ (to bound F/ that could be experienced during Condition I operations.

Currently, NSP receives this analysis through Westingt

e (WCAP-8385, CAOC).

It is the intention of NSP to perform their own V(z) valysis, i

The main difference between the proposed analysis and the current Westinghouse analysis is that NSP will be using a 3-D nodal code while Westinghouse uses a 1-D/2-D synthesis method. is a copy of the slides presented by NSP at the meeting. These provide an explanation of how they develop the V(z) curves.

The content and schedule for NSP's formal submittal to change their V(z) analysis were also discussed. Northern States Power plans to submit a new topical or an appendix to an existing topical which will address this change i

in method within the next two months. The content of the package will be similar to the information presented at the meeting. Northern States Power intends to use the method for Prairie Island Unit 2, cycle 16 start-up, scheduled for fall 1993. This will depend on completion of this review and coordination with the review of the fuel product upgrade.

Both will continue to be discussed at future meetings. is a list of attendees.

If you have any questions regarding the meeting or meeting summary, please contact me at 504-3024.

Original signed by Marsha Gamberoni, Project Manager Project Directorate 111-1 Division of Reactor Projects - III/IV/V ffice f Nuclear Reactor Regulation 050040

Enclosures:

As stated cc w/ enclosures:

See next page 0FFICE LA:PDIII-l PM:PDIII-1,f PD:PDIII-lhk MShuttlewok(

MGamberob LMarsh NAME E 93 1/zv/93 i

DATE DE /2f:>/93 C2/

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9303090493 930226 r -

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PDR ADOCK 05000282 P

PDR

t Northern States Power Company Prairie Island Nuclear Generating Plant J. E. Silberg, Esquire Shaw, Pittman, Potts and Trowbridge 2300 N Street, N. W.

Washington DC 20037 Mr. E. L. Watzl, Site General Manager Prairie Island Nuclear Generating i

Pl ant Northern States Power Company 1

Route 2 Welch, Minnesota 55089 Lisa R. Tiegel Assistant Attorney General j

Environmental Protection Division Suite 200 520 Lafayette Road St. Paul, Minnesota 55155 U.S. Nuclear Regulatory Commission i

Resident Inspector Office 1719 Wakonade Drive East Welch, Minnesota 55089

{

Regional Administrator, Region III U.S. Nuclear Regulatory Commission 799 Roosevelt Road Glen Ellyn, Illinois 60137 Mr. Jeff Cole, Auditor / Treasurer f

Goodhue County Courthouse t

Red Wing, Minnesota 55066 l

Kris Sanda, Commissioner 1

Director of Public Service 121 Seventh Place East Suite 200 St. Paul, Minnesota 55101-2145 l

Mr. T. M. Parker, Manager Nuclear Support Services Northern States Power Company 414 Nicollet Hall Minneapolis, Minnesota 55401 l

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DISTRIBUTION FOR MEETING

SUMMARY

OF 2/9/93

/NRC & Local PDRs xcket File PDIII-I Reading File T. Murley F. Miraglia J. Partlow J. Roe J. Zwolinski L. Marsh M. Shuttleworth M. Gamberoni OGC E. Jordan MNBB 3701 L. Kopp E. Kendrick M. Chatterton H. Richings ACRS (10)

W. Shafer, RIII cc:

See service list

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NORTHERN STATES P0k'ER COMPAlU e

i FEBRUARY 9, 1993 Transient Power Distribution Analysis l

I.

Introduction Tom Parker

!.i II.

Overview Oley Nelson j

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III. TPD Analysis Jim Zyduck Definitions Initial Power Shape Transient Modes i

Case List Bounding TAQs Generic V(z) Curves i

IV.

Questions All i

V.

Su= mary / Closing Tom Parker i

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TPD Case List

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Example N3P run, Volume of cases, TPD Cube l

TPD V(z) Comparisons Plots TPD Ceneric V(z) i AO, Plots, Qualifying cases, Criteria T

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4 DEFINITIONS Here is a list of definitions which will be used during this presentation.

- main terms to understand for this discusion TPD - Transient Power Distribution or V(z) analysis AO - Axial Offset - represents a given power shape (egn below)

(Pr - P,)

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where Pr - power in top half of core P. - power in bottom half of core al - Delta I - Flux Difference - product of AO and % of operating power P - P,)

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i Base Load - No power ramp excursions during core operations.

l Load Following Core operation which periodically ramps power down and back up over a period of time.

Bandwidth - allowable range about a TA0 for which the AI is maintained within during load follow operations.

axially dependent function applied to the equilibrium V(z) -

an measured F,"

values which account for non-equilibrium conditions, j

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The first step in generating a V(z) curve is to establish the initial (or starting) conditions necessary for a TPD analysis. The starting condition is a set of TAO's.

One being a +TA0 which represents an equilibrium core condition in which the power shape is skewed toward the top of the core.

The second starting condition is a -TA0 which is an equilibrium core condition where the power shape is skewed toward the bottom of the core.

f NSP utilized various schemes to generate the TAO's at' given exposure points for I

which transient cases are run.

The analysis utilized three independently produced power shapes with the same TAO.

Using each power shape a full TPD analysis was performed producing a V(z) curve for each power shape. The three V(z) curves were similar enough to conclude that the V(z) curve is independent of different power shapes with the same TAO. Hence, the V(z) curve is dependent on the TAO, not the power shape used to get the TAO.

l 8

Attached are plots of Prairie Islands ceasured Equilibrium TAO's from cycle 13 through 16 for both units 1 and 2.

These plots show that with " normal" core / fuel j

designs that equilibrium TA0 values range from +3.5% at BOC to -3.5% at EOC.

From this data it is possible to choose desired initial conditions (or TAO's) for a TPD' analysis.

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Second Step in TFD Analysis.

l The next step is to define the various operating strategies utilized for a TPD analysis. These operating strategies need to observe the allowable Tech. Spec.

t operating regime and within this regime induce the most severe xenon oscillations possible through various mechanisms whether that be control rods, boration-dilution control, or minimal operational intervention.

NSP has chosen what they refer to as a 3-6-3-12 load follow scenario, four operational modes, and two power ramps in combination with the two TAO's mentioned earlier. The end result of combining these four conditions results in what NSP views as the most operationally feasible and bounding conditions under-which the most limiting V(z) curve can be constructed.

3-6-3-12 LOAD FOLLOW The 3-6-3-12 load follow was chosen because it is considered to be an industry standard utilized by both Westinghouse and Exxon for this type of analysis. It is represented graphically in the attached figure. What the figure displays is a reduction from full power over a period of 3 hours3.472222e-5 days 8.333333e-4 hours 4.960317e-6 weeks 1.1415e-6 months , the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months power is maintained at the reduced level. Then a 3 hour3.472222e-5 days 8.333333e-4 hours 4.960317e-6 weeks 1.1415e-6 months J

increase to full power takes place, followed by 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months at full power.

l This entire process is repeated two additional times, resulting in a 72 hour8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months load follow operation.

POWER 4 AMPS The power ramp dictates the amount of power reduction and increase which takes place during the 3 hour3.472222e-5 days 8.333333e-4 hours 4.960317e-6 weeks 1.1415e-6 months ramping periods in the 3-6-3-12 load follow scenario.

The power ramps utilized in a TPD analysis are a 100-30% and 100-50% power ramp. It is NSP's view that these two power ramps represent the most operationally feasible and limiting power ramps necessary for a j

TPD analysis. This view was reenforced by looking at another power ramp, a 100-70% ramp, which was bounded by the previously two analyzed ramps.

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i OPERATING MODES l

The operating strategies (modes) included in the TPD analysis were chosen to represent allowable Tech. Spec. operating conditions. These modes are a subset of an infinite set of' operating conditions but it is this set which NSP believes represents the most limiting allowable Tech. Spec.

operating conditions.

Below is a description of the various operating modes utilized by the TPD analysis (graphically on attached figure).

Rebound

- RBD - >90% Power maintain AI as near as possible to top of allowable bandwidth 590% Power maintain AI as near as possible to bottom of allowable bandwidth Float

- FLT - Minimize operator intervention, only required to maintain Al within the allowable bandwidth Plus AO

- PA0 - Keep AI as near as possible to the top of the allowable bandwidth at all times Minus AO - MAO - Keep AI as near as possible to the bottom of the allowable bandwidth at all times 6

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at a given exposure point there exists two initial conditions, +TA0 and -TAO.

From these starting conditions a 72 hour8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months 3-6-3-12 load follow scenario using two '

power ramps, 100-30 6 100-50%, are utilized in a variety of operational modes, I

Rebound, Float, Plus AO, and Minus AO.

It is this case list that NSP views as the most conservative and bounding l

analysis over the range of Tech. Spec. allowable operating regimes.

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NSP Case List

of Time in Initial Power Operation Modes Load Follow Cases Cycle Shapes (Transients)

Power Ramps j

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+TA0 6 -TAO RBD, FLT, FAO, 6 MA0m log _30g 100-50%

14

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100-50%

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100-50%

1) The -TAO, MAO mode, all exposures, and both ramps will not be run Reasons:

No significant xenon oscilations are possible, hence, no possible limiting conditions can be generated.

t Below is a brief su= mary of what goes into the generation of a V(z) curve at one exposure point, 10 GUD/MTU for example.

i 1.

Generate the 1TA0 values for initial starting conditions at one exposure.

Requires approximately 30 N3P depletion steps or computer runs.

2.

For one initial condition, + TAO, two load follow scenarios are performed, 100-30% and 100-50% power ramps, for each mode.

Requires on averaSe 160 N3P time steps or computer runs which equates to 640 N3P runs to cover both + and -TA0 conditionsfor one mode.

3.

Given the above operating conditions, each mode is introduced at both TAO's and both Power Ramps.

All the above equates to about 2600 N3P cases run per exposure point for a TPD analysis. Each N3P represents a particular power shape which is included in the make up of the V(z) curve at a given exposure point.

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4 LTF Pl2 0005 QC NON-BOC N3PP21439 CYC14 NORM V(Z) MOC TAO =+4.78 RBD r

CORE AVG TEMPERATURE VS XENON TIMESTEP 560 1

559-

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l II-ll_

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0 10 20 30 40 50 60 70 80 XE TIMESTEP (HOURS)

- -------a----1.-..

r.---

LTF Pl2 0005 QC NON-BOC N3PP21439 CYC14 NORM V(Z) MOC TAO =+4.78 RBD PEAK F-DELTA-H VS XENON TIMESTEP 10 0 I

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E LOAD TRANSIENTS i

i EOUlUDRIUM

'86 h

h h

0 10 20 30 40 50 60 70 80 XE TIMESTEP (HOURS)

. m

--ev--

--+..w.r

, - -.., ~, -

..-.~-.,-.,,.>_,,,..-_,_,,,,._,,y.

,_,e.-

..,,.w_.,..~,,-,,.-...,..,_,.,w

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m Z

N J.

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g

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f r

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+

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p

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a e

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a b

4.9 Y

N N

O.

O, W

9" 9"

P W

9" p

(Z)A

+

6 P2'4 LTF CAS E 005 992, MOC

+ TAO, REBOUND,100-50% RAMP 1.o9 Ht V(z) 1 1.0G78 1 08

'/

m-a-8 2 1.0664 %

3 1.0644

/

l I

4 1.0617 E

5 1.0577 N

6 1.0524 3,,,

s 7 1.0458L H

+

8 1.0379

,j 9 1.0292 1.o5 10 1.0198 /]

11 1.0148 12 1.01029 13 1.0052 14 1.0130 3,,3 15 1.0256

[

1G 1.0378L f

"j 17 1.0490 /

1.02 18 1.0588 19 1.0G71 1.01 20 1.0729 21 1.0766 (

22 1.0789 1

23 1.0788 24 1.0795 L o

3 to is zo 23 Axial Height (nodes)

P214 _.TF CAS E 0131992, VIOC

-TAO, REBOUND,100-50% RAMP 1.12 Ht V(z) 1 13 1 1.0G77 2 1.0677

' a_as 3 1.0673 %

1.1 4 1.0655 i

5 1.0620L

[h I"

s G 1.05G7 7 1.0504

/

8 1.0460 1.o

/

9 1.0412 10 1.0350

/

11 1.0274 Q

[s.La-A 12 1.0303 $

.cs 13 1.0339 1

14 1.0364L-15 1.0504V C. /

1.o5 16 1.0G46 17 1.0762 1 'i 18 1.0842

\\

d

\\

[]

19 1.0868 20 1.0899 1.05 V-21 1.094Gl 22 1.098G(

1.o2 23 1.1003 24 1.1008 1.01 o

5 a

is 2

25 Axial Height (nodes)

e 32' 4 L-~F CAS E 0091992, VIOC

+ TAO, REBOUND,100-30% RAMP 1.1 Ht V(z) 1 1.0803 /

1" 2 1.0779 (

3 1.0756 1.os 4 1.0720 m,m-m__.m 5 1.0672(__.

A g

7 1.0534 (

' [/

6 1.0609 h

8 1.0456 1.os 9 1.0369 10 1.0305 11 1.0244 9[

1.e4 12 1.0171 13 1.0086 14 1.0128u 15 1.0252 g

f 3,,3 16 1.0372

[

17 1.0483 (

/

18 1.0580 1.o2 19 1.0658 20 1.0713 /

1.01 21 1.0739 22 1.0767L--

l 23 1.0758 l

24 1.0758 0.99 0

3 to 13 20 23 5

Axial Height (nodes)

O

~.

3214 LTF CASE 0171992, MOC

-TAO, REBOUND,100-30% RAMP 1.2 Ht V(z) 1 1.0659 t.o9 2 1.0677 3 1.0689#

4 1.0688 t.o i

"N 5 1.0669 (

6 1.0629

//

7 1.0565 1.o7 8 1.0499L N'

"'s 9 1.0429 10 1.0341 2.os 11 1.023W[

12 1.0266 13 1.0432 2.o5 14 1.0589 15 1.0718 (

16 1.0821 1.e4 17 1.0880 6 18 1.0887

(

19 1.0832 1.o)

\\,d l

20 1.0794 l'

21 1.0839 mr-22 1.0869 1.o2 23 1.0882L 24 1.0881 ('

t.o1 0

5 10 15 20 25 Axial Height (nodes)

4 i

~)214 LTF CASE 0061992, N OC

+ TAO, FLOAT,100-50% RAMP 2.s Ht V(z) 2" 1 1.0859

"'a'N 2 1.0875 3 1.08G5 L-.

1.on 4 1.0833 5 1.0780 6 1.0698-7 1.0007 /

0 1.0545 1.os

\\-u ---

9 1.0552 n

10 1.0545

's.

11 1.0519L-.9[

1 04 12 1.0472 13 1.0400 14 1.0303 %

15 1.0181 #

1.03 16 1.0040

,a 17 1.0022 gH '

(

1 '2 18 1.0072 19 1.0124 L.

20 1.0175 1,o1 21 1.0222 22 1.0259 /

~

1 23 1.0258 24 1.0266 L 0

to 13 20 23 Axial Height (nodes)

321L LTF CAS E 0141992, MOC

-TAO, FLOAT,100-50% RAMP 1.11 Ht V(z) 11 1 1.0669 (

p [,m m

2 1.0695 3 1.0708 t.o,

[

4 1.0701 v 5 1.0670

/

i 6 1.0613 f

7 1.0569 L

[

m,s -8"- k

[

8 1.0508 1.07 n

9 1.0443

\\

10 1.0386

/

11 1.0313 9

/

[

t.os g

12 1.0225 13 1.0123L.,

1* 8.0168 15 1.0281

[

3.n 16 1.040

/

I 17 1.0525

/

18 1.0642 1 ')

g l

19 1.0748 l

20 1.0840 1.02 l

21 1.0911Y

\\,d l

22 1.0953 Y

l 1 ot 23 1.0977L 24 1.0986 0

5 to 15 20 25 Axial Height (nodes)

e 321L LTF CAS E 0101992, MOC

+ TAO, FLOAT,100-30% RAMP 1.t '

Ht V(z) 1.09 1 1.0802D, -

2 1.0825 M"

3 1.0834 1.o 4 1.0812t b

,[-

5 1.0765

/

\\

6 1.07016-7 1.0612 i

8 1.0575 L-.

1.06 l

y 9 1.0659 10 1.0739 11 1.0790 9

\\

l 12 1.080Q*

\\

i 13 1.0763 1.e4 14 1.0672 15 1.0526 1.os

\\

16 1.0328L-,,

1 17 1.0078

\\

18 1.0004 1.o2

_,_m j

19 1.0058 S

20 1.0111 v t.o I

23 1.0188 24 1.0193L.-

0.99 0

5-to 15 20 25 Axial Height (nodes)

i 321L LT: CAS E 0' 81992, MOC

-TAO, FLOAT,100-30% RAMP t.11 Ht V(z) 3,,

1 1.0G19 2 1.065GL -

2

_ g 3 1.0681

- ~ ' =

i 4 1.0684 /

j 5 1.0673 1.os 6 1.0650 (

f

/

=#

7 1.0603 2.o7 8 1.0534 d#'H j

/

s 9 1.0442 m

,(

10 1.0333 L-

[_

11 1.0213 9

/

v t.os i

12 1.0085

)

13 1.0099 14 1.0231 1 **

x f

15 1.0351

)

I k

J 16 1.0480 n.o3 17 1.0606

\\

[

18 1.0708 h

r 1.e2 19 1.0787

\\

/

20 1.0837Q

\\_fff 2,,

21 1.0875 m--

22 1.0893 23 1.0901 1

24 1.0893 6 o.99 0

5 to 15 20 25 Axial Height (nodes)

~.

l P214 LT= CASE 0071992, MOC

+ TAO, + AO MODE,100-50% RAMP 1.1 Ht' V(z) 1

1 1.0892 %

=~ms 2 1.0884 3 1.0864 1.os 4 1.0821 L b\\

5 1.0757 6 1.0671 h

7 1.0564

\\

8 1.0441 Q 1.08 k

9 1.0304 /

/j-usNu, /

10 1.0160

\\

11 1.0062 9

JI'

\\

13 1.0308L.-[

104 (fj E~ A, 12 1.0193 14 1.0406 -

15 1.0479 1,,3 16 1.0526

/

17 1.0549 f

18 1.0552 1.o2 19 1.0537 20 1.0511 /

1.o1 21 1.0473 Y

22 1.0435 t 2

23 1.0428 24 1.0415 0.99 0

5 to 15 20 25 Axial Height (nodes) ses

3214 LTF CAS E C' 51992, VIOC

-TAO, + AO MODE,100-50% RAMP 1.06 Ht V(z) 1 1.0425 2 1.0450 V t.os 3 1.0464

[('N 4 1.0458

\\

5 1.0431 er 6 1.0386L 1 04 7 1.0320 8 1.0235 9 1.0141

,~

10 1.0056 1.o5 11 1.0073 ( {

12 1.00979 13 1.0116 1.o2 14 1.0128 15 1.0143L g

a--

r' 8'"

a 16 1.0157 17 1.0164 (

(_f

"~

18 1.0164

\\

19 1.0210 h

20 1.0268 21 1.0309 /

3 22 1.0335 23 1.0352L 24 1.0361 o.99 o

5 10 15 20 25 C

Axial Height (nodes) n

P214 LTF CAS E 011 1992, MOC

+ TAO, + AO MODE,100-30% RAMP t.1 Ht V(z) t 09 1 1.0830%

2 1.0825 3 1.0809 V N-Ag

[ k 4 1.0792 5 1.0747L G 1.0674 1.o7 7 1.0574 8 1.0452 9 1.0316h 1.e4 10 1.018V 11 1.0313 9

(

1

[

1.os 12 1.0512 13 1.0671 14 1.0781L. -

3,,,

15 1.0838V 16 1.0841 17 1.0793 1.05 18 1.0697 19 1.0579 1.o2 l

20 1.0528 g,,

21 1.0481L -

22 1.0433 1.o1 23 1.0419 24 1.039G d 1

o 5

to 15 20 25 Axial Height (nodes)

~

og 4

+-

g.,,-

.,,e m

n,--

w c a

.emis y.r--.

w.y,,em-+s.-

-a,w.-4,.,,-w..,.-..a.,

e

+

w--.<

w w

.e,

.w..

i,e in 1,

e w

se in+

+-w w-

-m-e a rw w.

~e-w w-e-,

,---------u_

8.

P214 LT CAS E 0191992, VIOC

-TAO, + AO MODE,100-30% RAMP 1.08 l

Ht V(z) 1 1.0366 %

1.c7 2 1.0411 3 1.0446 4 1.0460(

k 5 1.0449 1.06 j_ _ e 6 1.0414 7 1.0362 8 1.0294#

y 3,,3 9 1.0214 10 1.0154 \\

~s 11 1.0188 9[

1 **

j 12 1.0220 13 1.0234 W

14 1.0226L 15 1.0188 /

1.o3

</

16 1.0195 17 1.0287-18 1.0374 J'

s 1.02 19 1.0451

\\ !m'-

1s-"

20 1.0515 (

h 21 1.0554 22 1.0579L.

1.01 23 1.0595 24 1.060 1

0 3

to 13 20 23 Axial Height (nodes)

32'4 LT CASE 0081992, MOC

+ TAO, - AO MODE,100-50% RAMP 1.15 Ht V(z) 1 1.0673 2 1.0681 %

1.1 3 1.0689 4 1.0686 u-u-a---m-se 3

'Nd /

7 1.0578 1.os

"'8 8 1.0528

%q 9 1.0501 u 10 1.0474 11 1.0438 9

s 2

12 1.0388 y 13 1.0325 Q 14 1.0246 l

15 1.0150L-16 1.0052 -

os l

17 0.9945 18 0.9814 19 0.9635 20 0.9424 d

i 21 0.9197L

'u 22 0.9030v, l

.23 0.9024 24 0.8970 (

us 0

3 10 13 20 23

~

Axial Height (nodes)

3214 LT = CAS E 0161992, VIOC

-TAO, - AO MODE,100-50% RAMP 1.15 Ht V(z) 1 1.0579 2 1.0595 1.1 3 1.0611 4 1.0613 5 1.0598L--

6 1.0567 (

g

-m-m_,

'8M 7 1.0540 1.os n _a__ w _,

8 1.0503 w i 9 1.0464 10 1.0474 11 1.0482 9

1 131.0466L y 12 1.0482 14 1.0439 15 1.0371 16 1.0251 \\

o.95 17 1.0071 M

18 0.9822 19 0.9554 N - u _._ m 20 0.9371 21 0.9236 22 0.9188L_

23 0.9165 24 0.9153 o.s3 0

3 10 15 20 25 Axial Height (nodes)

9 P214 LT CAS E 0 21992, MOC t

+ TAO, - AO MODE,100-30% RAMP 1.15 Ht V(z) 1 1.0G93' 2 1.0658 1.1 3 1.0672 4 1.0G78(,

5 1.0665

"/

G 1.0632

's-a-a-n~,

'u d 7 1.0583 1.os 8 1.0538 (

"'u 9 1.0500(/

s\\

N 10 1.0462 a

11 1.0422 7

1 131.0312L [

12 1.0369 14 1.0251 15 1.0181 16 1.0092 oss 17 0.9980 h

18 0.9826 19 0.9630 20 0.9416

.-m-m 21 0.9210L-22 0.0095 23 0.9112 24 0.9095 \\

0.83 0

5 to 13 2o 25 Axial Height (nodes)

e P214 LTF CASE 0201992, MOC

-TAO, - AO MODE,100-30% RAMP 1.13 I

Ht V(z) 1 1.0716 #

2 1.0696 1.1 3 1.0672 4 1.0644

["'"'E-H 5 1.0633 6 1.0628L

-5~g

,g-g _._ g _,

7 1.0C00 1.03 8 1.0549

(

9 1.0551 10 1.0582 11 1.0600 7

1 13 1.0570 ( [

12 1.0598 14 1.0518tf 15 1.0417L.--

16 1.0271 0.,3 17 1.0066 18 0.9807

m 19 0.9538 /

20 0.9398 21 0.9279 L

22 0.9307 -

23 0.9246 24 0.9207 0

5

.to 13 20 23 Axial Height (nodes)

_'e

e v

1 i

m.

+. - - - -

A-.--.

us

-.-.4 1

-we-v

+-.e--

=.---e i=*==.a===ge-.

.-.o_e_.

g ua l,,,;

f

)

1 5

1 13

,3

)

l I I

l 1

5 1 i t

i e

t i

i l I

i

<, >({Q~,!iii:

.i -

e i

l!u;;.:.:...pa,ar ' :

up.k n e

uo 5,a"JJ

..' E *

T

'e I+'

i 9 *a

)9-9 I .g M*,

s

,Q. M*~-Q-K7 1[7, '. ' +.'

-. - -..... Q.....-

~

g s *.-_.

a, b-E 1.09 i

4. - - -

g -.- - - - -. -, *.

, - N -- _ 4,.N, s

y._,--...

._1.. _ d.

g 's,.

]

.n

..s

..-E d *.. k I.

-_. _. -.. _,r._..... s l.ca

\\

.O '~h'

C :' E ' ' ' -

~~

s.

Yh 1.07

.'.h s

\\. -,. _.

... _ -E, t

..r 1.06

- - +.

X g- - - -

- - ~ 4gi- +

.- - -.- E

' E ::n i

1 "L

&\\-

g :.*~.

-.l tes

_ E _v.ll E

- iD - _ __._g..

g.g-

_-._ __4 _7 q _ a__

'e

. -j

-).

_.. __. - ___ y y w 1.o.

g gX.,-

_.i..._--.. _ _

..,y_'___.__

v e

--- -.. u _

z.

i 1.C3 c.

-..w D,,V--i,'

i Y

/

.L 4.

..,V __.. _ _ i.. _ _ __ _

t 6

-y te:

I i

i i

i 1

i i

t,i t

,1 i

t !t ;, e'i,i t

t,i i,i t

,,i to, t

2 J

4 5

6 7

8 9

10 tt 12 13 to 15 16 17 18 19 20 21 22 23 24 Axiol Height (nodes) i 1

0 Generic MOC V(2) e Maximum V(2) v + TAO,100-30% PWR, RBD 7 + TAO,100-30% PWR, FLT o + TAO,100-50% PWR. +A0 E + TAO,100-30% PWR, +AO o -TAO,100-50% PWR. RBD A -TAO,100-50% PWR, FLT l

f J

4 y

r C

i f

I 4

i i

6 i

i i

i l

2 1.13 g,

j i j l

' i d

~

[

?

j i

i i

j*

A 'A A

A 1

I l l l

I 1.14 p

_V

_V V

.V I l t ! I i i [

. I:

OiA i '

!! 1

;! l 4 i,

1 ; 4

- '-- 7 9 i,#=0 i {T-~

,~r

~d.-

'9 3 i,,

1 i

A E

9,~

I

'~3 s

' ^ 'n ~.

s

' ~ E

'~

!m; Ill[g[\\',>

i Gj !

g'f' l !

1 f, /a.

,E-

--- - /- - - - -/ -- 4 --, - - -,, y n t

f.

g A

1 12

'9 V+V U--,8 4 --i---

- I

/.

Y V Y '.T ; t',_

./

E

_1,__, 8 M~_v ty,

,,N i

g _.-.,,_.__.

y_..__..._

p i, -

i.ii

.m g._

i Y. '.S

./

\\

'.' g'. _.

t p

i so.g t W'

/

t i

- y,,,

/4 -.-

(

p

.y j

- - - _.. - \\..,...

E i

4..

,a

- A V S.,.,,S-. - - - -

--m..--.,-.-3. y.. -. -.. - - -. _

3 V.1 __ g'.i _.

1 N

--_-_.,f,'-

1 - _ -l

O \\ Q'. O 5

i m :g Q ag --rat,.',/

Tt u

.J J, _E_.h -

m~

~~

%--th i 1.F"Y~~94,

I

--[

1 07

-y g -- -

E E

_.___d_ h' A

.JV,.u..-__ p f Y w-i-v O'y;?8.E - - -

i g.c e,

LJ h...,ld. -

.. V p.-

6 06

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

~*

A

.:Y u.

. ~,.

n g

1 DS

--.1--

-Y - - - - - + - - -

_._._......-w.__,g.

.._t

.A, _.,...

.._J.

4 g

Is' _

[7-/ ' e '-

, fr./V.

,y,

/

[

i

,3

_O

- _.Y

..y._ _,

j 4

l

,yj

-Y i

1.03

~~

'! I7 I

i l 1 3 ! {

I I i*!*

l t i i i l { ! } !

4 ? I i

A i

+

t i c2 1

4-.

n f

f f

1 t

i f

f i

f f

f i

i i

g,g3 1

2 3

e 5

6 7

8 9

10 11 12 13 14 15 16 17 18 19 20 21 22 23 24

}

Axiol Height (nodes) i f

T l

1 i

o Generic MOC V(z) 1 e Maximum V(z) l

}

v + TAO,100-30% PWR, RBD l

y + TAO,100-30% PWR, FLT O + TAO,100-50% PWR, + A0 4

i a + TAO,100-30% PWR, +AO a -TAO,100-50% PWR, RBD A -TAO,100-50% PWR, FLT

6 TPD Generic Qualification Cases 4

Generic Case List (oer Excosure Poinil J

/

-TAO TARG ETS o

o

+ TAO..

i

pat % M 3;n w s m yc:- k W

.M.4, c:-o%. k. e rtiev..:;: tirw 1,

. X.

Modes

^

MiM$j@2#.0'T. &f/SM$sw??.m,

t.-

9

_ AU -

u

> ~x g;,p,.j?*3 Y-4

1. i"#

w

@0'

%d W 71thwVi* $w;N

m<>:@4.. :.#..

j

RinUE7 E C

M

,,..g,%. ;.1.y c.

n :- 1 t

w

+ < n..: p. >,r n.- :,,

u.

a+.:n v 7.sw.

>, wo v9

.-u.n.

vs.

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my.s.:,ega.yg&+cw s

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.s.- y y _w;w.:.m.s,.;r

.- w g n..gpr,p ~,

y:;

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u nJ 3-::kg is%W,

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r+ ;.y '

nyn.

s:#

E w:n s.w Fioat o, w. :.,.... m. e:=.,,,y >.

"4e S

TAO's T@Mt240sGW

=www'-< rm.,,en M,-:

SbD. >

vu

~-@u?i.ye'9[d'7?s',vLa,v.w-;. w.m.6 E

l Rebound mp.e i-

'5 U $16@@$Tk. i

[

100-30%

100-50%

t.........

RAMPS

= r./4*;"

1 4

I I

s b

Generic Considerations j

l NSP has completed the TPD analysis for Prairie Island core designs, P214, P115, i

and P215.

From this data NSP has &iveloped a Generic V(z) curve at two exposures, MOC and EOC.

Attached are a combination of plots from the three cycles of data which generated the Generic V( ) curves at EOC. These plots represent various slices of the TPD Cube of cases shown earlier.

The combination of all of this c'ata is plotted along with the Generic V(z) curve at the end of ti# section for both MOC and EOC.

4 s

I d

t i

1 i

i i

i s

I l

n i

i j

i

[

I

[

6 t

i I

[

i

?

k 1

5

msvas 3J.

ric: a 2.s PRAIRIE ISLAND UNIT 2 CYCLE 14 FRA!RIE ISLAND UPUT 2 CYCLE 15 LOADING PATTERN BY RE OAD E M3 CTC to RELDAD 4.Twl:1 $URNEC EDNSERT L.3 w/O URSS F1NAL LOADING PATTERN BY RELCAD I

5 R3 CYC 12 RELOAD 11.Tw1CE SURNED RED

SERT S.B. wr0 U174 m3 Cyc 11 ReLCA.D 18.TwlCE BURNED RDNSERf Es. wr0 Utts l

j

/N 13 WAD'12.ONCE BI*RND R.gDfEERT 3.80 W/D CZ:S Rt CTC 13 RESAD TLONCE SURNES RONSERT 3.48 wie U225 g On BC'RNgp Rt xsERT 3.80 Ef/O Ut25 b,

pit CT: to RZ*aAD 13.cNc3 BURNED REINSERT 40W/O AND OTW/O UZ23 l

ms evt u maDAD ts.rMasa 4.owso ANo 4.s wie Usss 1

l P:2 CT 15 EE14AD 3A FRE3E u W/D U233 1 2 3 4 8 6 7 8 9 10 11

~2 14 t

2 3 4 5 g 7 s s 10 11 12 13 Eile liil gg g

^-

x.

e-o o= = = olo n-as @:._~._~,

@Eii c.

@ w....

.~

.... m,.

.. w.

' o, i-H o.-kN xx n

o-o = = o o w o ow =o l

o.-., i.o.u <

c-o, L51 t.-u

>-u

(

o.

= = @ @ a @ @l=

v o :str o o t.tr o = o o :.1: o l@pe, @ @ = @ = @@ = 3l r-Ee== o = o o o w o = =2E

~

iE *=

0

O O E #"" E **'

E-a-e= e e o o Eo o = e :.1@

2 2 0 #"" 0 0 E O S.* S *""'ISI I

E= :.!: o n o o o w o ;.Per g!!

m s-o :.tt o o w o = o o w o Gi = = & = @ @ @ = S * **

O* 0 0 3 0 ^ O0

SI s-o = = o o w o. o = = o lQ Yl liil lll Q *;*l *;?? ?l Ql d'

$$ 5" U M ASa b b E' Y :k K-lo oiv: :s!: = O-o K-

$, b

@ l""r#'

OI L-M @ pjr L-M-

k E."~' 2 @E J

M M-g g

.~,veux..-u.r..

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1Z3 rap-ncuAR a.xALTz:s sErr

- s.13 8 **

3,,

PRA!!:.!E ISL*JJO UM!T 1 CYCLE 15 LOAC:NG FAa 4 :.N FI2A SY !'E TYFE t

8 M1 RELCAD 10.TWICE ECNE.D 1.8 W/0 U213 se Pit 9aDAD 16.THRIC2 34,iRNED 3 80 wt0 U238

( M1 RELOAD tLONCE $URNED REP'$ERT 3.84 W/0 U138 M1 RELCAD tLTWICE SURNED 1.9. W/0 U235 t

M1 RILDAD 11.DMC2 SURNE: L83 W/O U231 M1 REuAD 1 PRE:H ewr0 AND 4.2 wio v2:s 1 2 3 4 5 6 7 8 9 to 11 12 13

P214:

2. 52 tundle R. load

~

p E;L1 as 4 4 Bundl.a 4..w/o U235 OEY 8 Bundl. 4.2w/o U235 Q 'g Q

g Q

l2g

2. 56. Sw/o od pin.

85 Ae.

4 3

3. 6* Net-C Blanket.

4 G Y: 4' YJ o, YJ :4't = 0

' 5 '-' 2 Saira

@ YJ c o o r o o = Y: @

nu, 4

2. 4

o.. 2..d O ti': o o = 0 = 01 o = 0 24 s a a.

4.o.i. v2n

=

1 o= = o e o o o= o = = 0

2...

3.,'. #"1.

!No o e o o H o o ti!: o oiR

":.'2'"::: ;;*;;' *= ' "'"

t e vgYJ o e o o o w o = = e

,, u,

o e o o e o e o o e o i

2. 52 -a

=.2-4 52 euna.

4.2.i. aus

@ YJ t*J o o ti'r o o t!: YJ S l

2. s** 5.e ad et=.

8

a =2 a a ====== cd wi=-

O m.

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O m

4. to. t..u... D..i c

~

S O Y: 01 o @

e!!!!! e e,criany rennumen R.WR3 RJ PA42 #

i i

b

a i

TPD ANALYSIS / V(z) METHODOLOGY EOC, P214, P115, & P215, + TAO ill 112

/

111 4

yv y

\\

m u

N u,

8

]k Nsme 1AS 1A7 3

1 1.u us 1A4 e

3 1.

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25 AxialHeight (nodes)

_. P214

+ P115

+ P215 3

e

i i

)

i i

l l

TPD ANALYSIS / V(z) METHODOLOGY l

EOC, P214, P115, & P215, -TAO 114 i

1.13 V"

112 t

1.11 af Aff s

mesesu,

t.,

k

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((

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~(x JWl

'5 @P' N /

{

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1s 1.

u AxialHeight (nodes)

_._P214

+ P115

+ P215 i

i i

l i

t 4

e 1

1 TPD ANALYSIS / V(z) METHODOLOGY EOC, P214, P115, & P215,100-30% RAMP 123 132

/N l

i 1J1 5

\\

3 u

?

u JC mmen u,

n

/

3 p

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=

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1A4 l

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134 l

e 5

le 15 26 25 AxialHeight (nodes)

-m P214

+ P115

_s P215 i

.i

f l

t 5

i TPD ANALYSIS / V(z) METHODOLOGY EOC, P214, P115, & P215,100-50% PAMP 124 Ht 14 us 12 07 1J2 S9 E7 h

$P g

g y

n

=

y "'

~

g p

~

m

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m w

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105 11 6 1,

,22 s

1e 1s u

1s 124 AxialHeight (nodes)

_._P214

+ P115

_r P215 d

O m

n

TPD ANALYSIS / V(z) METHODOGLOGY l

EOC, P214, p115,

P215, REBOUND f

in J

132 1J1

/

Q(j

f

/

yf' "MWsM%*1w

-_ p q us

(

ylfyf w

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1A2 3

15 20 23 AxialHeight (nodes)

-m P214

.,_py15

+ P215 I

l l

TPD ANALYSIS / V(z) METHODOLOGY EOC, P214, P115, & P215, FLOAT 1J4

\\

U%

/

dN fh

/

! t % % W O M *<

)(/

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1 /

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1.05 m

3.

is 2.

25 AxialHeight (nodes)

~

_._P214

+ P115

+ P215

TPD ANALYSIS / V(z) METHODOLOGY EOC, P214, P115, & P215, +AO MODE 1,13 u,

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+ P115

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e' l

s TPD ANALYSIS / V(z) METHODOLOGY EOC, P214, P115, & IG15, -AO MODE i

4.--

1 1,15

(

la

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s Permte 2

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+ P115

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+

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2 i

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OO O O 4 O 03D 0 -+ \\ \\ I -O GD-o'D 03DGD CD--OC04) --0-- 0-GuD 4 0 i o.-crrn CO CCt3ONN O g i _ moc, oo) oo o -colmanvrsrrrn-a 4.-cm - m m a;; m o.a.-..---..... y q p 4

o.._acoco-ocyogxpgggxp O

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a- _ ~.. - - - _ _,. _... _ _.. _. - - --c-umrra orm. -_-. -. e i 4 r <r, carrn o cyjan o o.- _.. --..._, -..'...._ _ ~.. __..-.t [ asigrrrn ac:l)O00. o- . + -.. - - -. - - - - e t i W N OO@*0-@ -0 en 2 i . = - - - - - - -. E 4 3 l f l --~ i ^ p Q.o_@ @ - 3 l e i t I a l i i -CDGEarryrro-mo -o -oo-M e 6 4 j

/e orrrmsrrny - 4 e

i r . w - o.- 0 c.. o-..- --- - ~ - - n l l I I 1 i f l cei.d I 31 (g,mintmrrh a O

e. 0 i

a = = = 8 e. 2 e o 8 8 e e o o e m = 0 0 0 0 0 0 } i l 1 (z)A 1 I V *3 %

b o

a Op 0 6 GE]EHE4y O g 4 O O-y0 0 gM g 'CO-- i 1 - 0 3F N IIIECO3 D-Cggrm err'>703I)- ---<o '3)-an-<tO CD3DOOO 2 i i O O -<1rvrrrumrn <!CCC)<tr'imrn33 000 - -O O ; 4 4 - --CD # @O OC00 CO O d > \\ '00 ei a i a s mo GXVNT= C,OO -O--00 i t I i t i i f i i 3E3D 003 O O O \\ i + \\i i ,, i e i - 1:.cwrrrrag)2D e --- > = =*-G) 0 O-O---.-(D -m tr-nirn o o i i t i i j j I e i i } i i 4 i f i ( l 31tOCKrrm-o--o. l l l 1 i l -OCEEuDURDOGCDOCD'D C, DOD O-O--O.- g s p 6 f"M*FYrFTFn@ @. @ @M o@ N

o o--. -.-

~~ g C M 6-OCD -arrn.mrara... i. r n rit-rrrrrrimin O O I -O G 4-OCEDO3D OCN'ML'EE"TrnM - - - - - - - - - - - - C 0-t.D O CECDC00carrrroren mrugIn - g ^ c -.i to a O o-co - oo-d -emorrusernrrr~.Trrn z V m -OCDC Od=i.

a. srirrvur -c 7

o.i N r y S V -oo-o-o.oo o o-ozzpermco m ------ 4 o eoo o coco:oacr.azn> -ar=r--g- \\ i -0 ] O oo c --oo on-r-r===r= 1at==nxo --O-- g

c

= arDc=aou - 0. ~ - K -. r a 4 \\oo - -aD=O a i e i I i l i I i i i j CER1mCD Crrrrnrboo-+t.c, i t i i i -maurrrrrrrano.co oo </ i / i i GX1U- - - - CD CC --~<D--OO e i b --ee.* e, e-e -w e o.umare:rrrrwwricocooo -oo---c i - - - -. ~. - .--..~.,, -. _... l s ' -OGIDrvrrrii r.it wrwvvto.go o._ og -...C e a i

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""'- h* -p=4 - = -, -. -

i-.,me g

=M-1 8 4 e i h C g Q g ~ o o I -Q O e e e a m o o o o o o e (z)^ r d ~ ~

g '*

MEETING ATTENDANCE SHEET V(Z) ANALYSIS February 9,1993 i NAME AFFILIATION 1. Onh wbW tJ M / M A.J/ M E ~- 1

2. n gputg asp /etice.2c 3-m Paek.c

>>s e / ucai% 4. O c5 y WbL SW iv5 i'/ S. - T t*c15 5. L o r d-I KcPP

5273, 6.

tD ML ND9'Ct< %6 7. t' A O C.n-at, Crrn 7, c e 9 s u W6 8. risvn ?b RecH1kcs Sg O. 10. 11. 12. b

ML20034G425

Contents

Text

SUBJECT:

Enclosures:

SUMMARY

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ML20034G425

Text

SUBJECT:

Enclosures:

SUMMARY

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