ML20096G406

Core Operating Limit Rept

ML20096G406
Person / Time
Site:	Fort Calhoun
Issue date:	04/25/1992
From:	OMAHA PUBLIC POWER DISTRICT
To:
Shared Package
ML20096G392	List: ML20096G388 ML20096G406
References
NUDOCS 9205260062
Download: ML20096G406 (14)

Text

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Fort Calhour Station Unit No. 1 TDB-VI TECHNICAL DATA BOOK PROCEDURE

{

Title:

CORE OPERATING LIMIT REPORT Sotpoint/ Procedure Form Number gFC-68): 38239 Reason for Change Add the COLR to the Operating Manual to-tmplement T.S. Amendment 141.

Contact Person Keith Voss-

. Typographical Correction (a); Page 8 ISSUED: 04-25-92 11:30 pm R0 9205260062 920515 PDR- ADOCK 05000285 P. PDR

R....,. .

- I '

FORT.CALHOUN STATION TECHNICAL DATA BOOK TDB-VI PAGE 1 OF 13 wf' .'*.'

NAC ,

3

-( '

e Fort Calhoun Statior., Unit 1

_ Cycle _J:Lgpre Operatino Limits Rep _prt;,

r ASf.i Dae tc the conh,i: ,d incritical aspects of the safety analysis inputs this report, without changes may not be made to this report Nuclear 2ngineering Dept.rtment.av,icurrence of + te Production Engineering Division, FC/TDB R0

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

FORT CALHOUN STATION TDB-VI TECHNICAL DATA BOOK PAGE 2 OF 13

• TABL" OF_ CONTENTS ,

Item p3scriptio_q Pace 1.0 Introduction 5 2.0 Core Operating Limits 5 3.0 TM/LP Limit 6 4.0 Maximum Core Inlet Tenperature 6 5.0 Power-Dependent Insertion Limit 6 6

-6.0 Linear Heat Rate 7.0 Excore Monitoring of LHR 7 0.0 Peaking Factor (F,f, T Fa)T Limits 7 9.0 DNB Monitoring 7 10.0 Fa , F,y and Core Power Limitations T T 7 11.0 Refueling Boron Concentration 7 1

1 FC/TOB RO

, . FORT *CALHOUN STATION TDB-VZ

-- TECHNTCAL = DATA' BOOK - PAGE.3 OF 13-LIST OF TABLE r

~ Table-No. Title pace TM/LP Coefficients 6 2 Maximum ~Fa and F,7 Limits 7 E

h i.-

I i; .FC/TDB R0

.c ,

FORT'CALHOUN STATION- TDB-VI ,

,, . TECHNICAL - DATA' BOOK -- PAGE 4 OF 13

• L:

-LISTS OP FIGURES

=fjaure No. Tit]e Pace 1- Thermal Margin / Low Pressure 4 Pump Operation 8

.7 Power Dependent: Insertion-Limit 9 J Allowable Peak Linear Heat Rate vs. Burnup 10

.4- Excore Monitoring of LHR 11 5 .DNB Monitoring 12 6 F,77 , FgT and Core Power Limitations 13 i

(

L l

l-L FC/TDB RO li 5.

FORT.CALHOUN STATION TDB-VI

. TECHNICAL DATA BOOK PAGE 5 OF 13 CYCLE 14 CORE OPERATING LIMIfS REPORT

1.0 INTRODUCTION

This report provides the cycle - specific limits for operation of the Fort Calhoun Station Unit 1 for Cycle 14 operation. It includes limits for:

1.1 TM/LP LSSS 4 Pump Operation (Pva) 1.2 Core Inlet Temperature (Tu) 1.3 Power Dependent Insertion Limit (PDIL) 1.4 Allowable Peak Linear Heat Rate 1.5 Excore Monitoring of LHR 1.6 Planar Radial Peaking Factor (F,yT) 1.7 Integrated Radial 3eaking Factor (Fa)I 1.8 DNB Monitoring T

1.9 Fg/F T xy vercus Power Trade off curve 1.10 Refueling Boron Concentration These limits are applicable for the duration of Cycle 14.

For subsequent cycles the limits will be reviewed and revised'as necessary. In addition, this report includes a number of cycle - specific coefficients used in the generation of certain reactor. protective system trip setpoints or allowable increases in radial peaking factors.

This report _has been prepared in accordance with the i requirements of Technical Specification 5.9.5. The core operating limits have been developed using the NRC methodologies listed in Technical Specificat'on 5.9.5.b.

(-

f. 2.0 CORE OPERATING LIMITS The' values and limits presented within this section have been derived using the NRC - approved methodologies listed in Technical Specification 5.9 5. All values and limits in this section apply to Cycle 14 operation. Cycle 14 must be operated within the bounds of there limits and all others specified in the Technical Specifications.

FC/TDB' R0

1 FORT CALHOUN UTATION TDB-V'I TECHNICAL DATA BOOK PAGE 6 OF 13 3.0 fn/LP LIMIT The TM/LP coefficiente for Cycle 14 are shown below:

Table 1 Coefficient Value a 29.73 D 18.44 y -11325 The TM/LP setpoint is calculated by the Paa equation, shown below and in Figure 1:

Pux = 29.73 PF(B)A1(Y)B + 18.44Tu -11325 PF'B) m'1.0 B2100%

= -0.008B + 1.8 50% <B<100%

= 1.4 B550%

A1(Y) = -0.35294Y + 1.08924 Y1 s 0.25

= 0.57143Yi + 0.675 Y > 0.25 i

Where B = High Auctioneered thermal (AT) or Nuclear Power, % of rated power Y = Axial Shape Index, asiu Tu = Core Inlet Temperature, *F Pn2 = Reactor Coolant Syatem Pressure, psia

-4.0 MAXIMUM CORE INLET TEMPERATURE The maximum core inlet temperature (Tw) for Cycle 14 shall not exceed 543*F.

This limit is not applicable during either a thermal power ramp in excess of 5e of rated thermal power per minute or a thermal power step greater than 10% of rated thermal power.

5.0 POWER DEPENDENT INSERTION LIMIT The power dependent insertion limit is defined in Figure 2 for Cycle 14 operation.

6.0 LINEAR HEAT RATE The allowable peak linear heat rate vs. burnup is 13.8 kw/ft for Cycle 14 for all burnup points as shown on Figure 3.

Fr./TDB R0

(_

' FORT.CALHOUN' STATION- TDB-VI LTECHNICAL DATA BOOK PAGE 7 OF 13 l

-7.0 EXCORE MONITORING OF LHR The_ allowable operation for power versus axial shape index for monitoring of LHR with excore detectors for Cyc '.e 14 is shown in Figure 4.

8.0 PEAKING FACTOR LIMITS The maximum full power values for the unrodded planar radial peaking factor (F,#T) and integrated radial peaking f actor Fg T) are shown in Table 2.

Table 2 Maximum Full F;wer F, and Fn Limits Peakina Factor Limits T

Fn 1.85 FgT 1.79 9.0 DNB MONITORING The' limitu for DNB as a function of axial shape index and core power is shown in Figure 5.

Core power shall be maintained within the limits established by the Better Axial Shape Selection System (BASSS) for CEA insertion of the lead bank of <65% (i.e., greater than or equal to 44.1 inches withdrawn)-when BASSS is operable, or within the limits of Figure 5.

10.0 f.pT, F.T AND CORE POWER LIMITATIONS Core power lJmitations versus Fgi and FnT are shown in Figure 6.

11.0 REFUELING BORON CONCENTRATION Tbe refueling boron concentration must be maintained with a boron concentration of at least 1700 ppm in the Reactor Coolant System to ensure a shutdown margin of not less than 5% with all CEAn withdrawn.

FC/10B R0

77 FORT-CALHOUN STATION TDB-VI.

TECHNICAL DATA BOOK PAGE.8 OF 13 '

y 590 .

~

ASt = -0.06 1,580 3 g.

u,i 570 -

E

\

~

$ g_ 560. \ ~

\

. 550 -

s 2250 psia -

2 540

.$ 2100 psia -

N

~

c 5 O' 533 0

- o :- .

g E- 520 -

zO \ 1750 psia O .

! 510 -

500 - -

i- 60 -70 80 90 100 110 120 CORE POWER (% OF RATED)

'Pym =. 29.73PF(B)A1(Y)B + 18.44 TIN - 11325 PF(B) . - = 1.0 B .>_100%

= .008B + 1.8 50%<B<100%

= 1.4- B $50%

A1(Y)1 = -0.35294Y + 1.08824 Yi s.25 i i

- .= 0.57143Y + 0.875 Yi >.25 RO a l

CYCLE 14 - THERMAL MARG'N/ LOW PRESSURE FIGURE

.COLR 4 PUMP OPERATION 1

FORT CALHOUN STATION TDB-VZ

. TECHNICAL DATA BOOK PAGE 9 OF 13

- 126

- 100.8 ,

" U *I LONG TERM STEADY STATE

' ,/

• I*I

[ '

INSERTION UMIT 3 (82.5) o - 75.6 . ,-,

/

SHORT TERM ,'

PPDlL

^

~ 126 - 50.4 INSERTION UNIT

-l i

l.

• 5 - 100.8 - f.5.2 '

a , ,

%- l ,

PDit or TRANSIENT E E - 75.6 -C l INSERTION UMIT

@ ~@ .T'

- 50.4 ,-

EMERGENCY BORATION UMIT p52) .* (12" BEUOW PDil - REFER TO AOP-3) us Z 126 - 25.2 _ (25 2) .

9 (132)

I" rn - 100.8 - 0

'O

. cL

$ E - 75.6 o

cc.

a a-O O - 50.4 .

6_:

- 25.2 126

-0 - 100.8

[ - 75.6 .

2 C - 50.4

- 25.2

-0 0 20 40- 60 80 100 REACTOR POWER (% OF ALLOWED POWER)

RO CYCLE 14 POWER DEPENDENT INSERTION LIMIT FIGURE

a. COLR .

2

^

FORT CALHOUN STATZON TDB-VI TECHNICAL DATA BOOK  ? AGE 10 OF - -

4 16~

0 UNACCEPTABLE OPERATION L

I4

-h x -

13.8 KW/FT D

w I

x- ACCEPTA3LE OPERATION 5-

-- E a -13 4

12 0 5000 10000 15000 20000 BURNUP R0

-CYCLE 14 Ai.LOWABLE PEAK LINEAR HEAT RATE FIGURE COLR VS. BURNUP 3 .

7 di '

f ^

. FORT CALHOUN STATION TDB-VI

[ TECIINICAL . DATA BOOK PAGE 11 OF 13

-g 110 100

,i-C W- 90 J 3-0 ( .os, so) (.1, 80)

.' E 80 m

o g

- 70 ( .2,7c) (.2,to)

-Q

'W 60

..g O

- j, .

50

-4 L

O 40 F-Z W. 30 1 O

.E.

W:

-1 20 10 0 ,

.4 .2 0 .2 .4 AXIAL SHAPE INDEX (ASIU)

RO

!- CYCLE 14 FIGURE COLR EXCORE MONITORING OF LHR -

4 a .  :

L- FORT CALHOU'1 STATION TDB-VI ,

l TECHNICAL DATA POOK PAGE 12 OF 13 110

('02 5'100) ('1'100) 0 p 90 m i 5 80 o

Q.

>(

70 /

w --

CE, 60 I '8'"' "' '

O

( w g- 50 -

oJ J. 40 -

< t u.

O 30 W

Z

~

D

$ 20 -

C W.

3. 10 c-0 -

.4 .2 0 .2 .4 AXIAL SHAPE INDEX (ASIU)

NOTE: WHEN BASSS IS OPERABLE THIS FIGURE IS GUPERSCEDEP 'v THE BASSS PLOT go COLR DNB MONITORING 5 g

\-_____________-____________--_-________-__________- _ _ _ _ _ _ - _ _ _ _ _ _ _ _ _ _ - ______ _ _ _ _ _ _ _ - _ _ _ ___

f]; a

, FORT CI1HOUN STATION- TDB-VI

' TECHNICAL DATA BOOK..

PAGE 13 OF 13 110 p,T pTm

~ LIMIT LIMIT 100 W

W 90 (1.79,90) (1.85,90)

O

\

80 W

W 70 (1.93,75) (2.01, 75)

Q W

g. 60-oJ.

J 50 u.

-O 4o.

H Z

W-g 30

=2.

W-Q' 20 10 0

1.75 1.80 1.B'i 1.90 1.95 2.00 2.05 FT y and FrT R0

. CYCLE 14 p T, p,T, AND CORE POWER LIMITATIONS FIGURE

-COLR 6

.