ML20059H741

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Rev 6 to COLR, Reflecting Cycle 15 Operating Conditions
ML20059H741
Person / Time
Site: Fort Calhoun Omaha Public Power District icon.png
Issue date: 11/22/1993
From: Weber W
OMAHA PUBLIC POWER DISTRICT
To:
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ML20059H733 List:
References
NUDOCS 9401310138
Download: ML20059H741 (16)
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Text

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, l Fort Calhoun Station I Unit No. 1

-1 TDB-VI-TECHNICAL DATA BOOK PROCEDURE '

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Title:

CORE OPERATING LIMIT REPORT FC-68 Number: 41787 ,

Reason for Change: Update COLR to reflect / implement i Cycle 15 operating conditions.

Contact Person: William O. Weber t

'i ISSUED: 11-22-93 9:00 pm- R6 e <

9401310138 94011425 p l ADOCK 0

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. ,-- FORT CALHOUN STATION TDB-VI .

-TECHNICAL DATA BOOK PROCEDURE PAGE 1 OF 15 Fort Calhoun Station, Unit 1 Cycle 15 Core Operatina Limits Report Due to the critical aspects of the safety analysis inputs contained in this report, changes may not be made to this report without concurrence of the Production Engineering Division, Nuclear Engineering Department.

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FC/TDB R6 t

og FORT CALHOUN STATION TDB-VI )

TECHNICAL DATA BOOK PROCEDURE PAGE 2 OF 15 '

i TABLE OF CONTENTS jlga Descriotion P_agft 1.0 Introduction 5 2.0 Core Operating umits 5 3.0 TM/LP Limit 6 4.0 Maximum Core inlet Temperature 6 5.0 Power Dependent insertion Limit 7 6.0 Linear Heat Rate 7 7.0 Excore Monitoring of LHR 7 8.0 Peaking Factor (FnT, Fni) Limits 7 9.0 DNB Monitoring 7 10.0 T i and Core Power Umitations Fn,p 8 q

11.0 Refueling Boron Concentration 8 e

1 FC/TDB R6 l

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. FORT CALHOUN STATION TDB-VI  !

TECHNICAL DATA BOOK PROCEDURE PAGE 3 OF 15 i i

i LIST OF TABLES l l

Table No. Iltlft Pace 1 TM/LP Coefficients 6 2 Maximum Fa and F 9 Umits 7 i

a 4

R6 FC/TDB

f FORT CALHOUN STATION TDB-VI' **

TECHNICAL DATA BOOK PROCEDURE PAGE 4 OF 15 LIST OF FIGURES ,

Fiaure No. Tilla PAQ2 1 Thermal Margin / Low Pressure ,

4 Pump Oceration .9 2 Power Dependent insertion Limit 10 3 Allowable Peak Linear Heat Rate vs. Bumup 11 4 Excore Monitoring of LHR 12 5 DNB Monitoring 13 6 BASSS Allowable Power 14 7 FnT, FxyT and Core Power Limitations 15 ,

6 5

FC/TDB R6

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

.. FORT CALHOUN STATION TDB-VI TECHNICAL DATA BOOK PROCEDURE PAGE 5 OF 15 Cvele 15 Core Ooerating Umits Reoort 1.0 Introduction This report provides the cycle-specific limits for operation of the Fort Calhoun Station Unit 1 for Cycle 15 operation it includes limits for: l 1.) TM/LP LSSS 4 Pump Operation (PVAR) 2.) Core inlet Temperature (Tm) 3.) Power Dependent insertion Umit (PDIL) l 4.) Allowable Peak Unear Heat Rate 5.) Excore Monitoring of LHR T

6.) Planar Radial Peaking Factor (Fxy ) T j 7.) Integrated Radial Peaking Factor (Fn ) '

8.) DNB Monitoring T

9.) Fn /F T versus Power Trade off curve 10.) RefueIng Boron Concentration i

These limits are applicable for the duration of Cycle 15. For subsequent cycles the limits will be l reviewed and revised as necessary, in addition, this renc;t 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. l 4

2.0 Core Ooeratina Limits All values and limits in this TDB section apply to Cycle 15 operation. Cycle 15 must be operated l within the bounds of these limits and all others specified in the Technical Specifications. This report has been prepared in accordance with the requirements of Technical Specification 5.9.5. The values and limits presented within this TDB section have been derived using the NRC approved methodologies listed below:

OPPD-NA-8301, " Reload Core Analysis Methodology Overview" Rev. 5., Dated January 1993. (TAC No. M85843)

OPPD-NA-8302, " Reload Core Analysis Methodology, Neutronics Design Methods and Verification" Rev. 03, Dated January 1993. (TAC No. MB5844)

OPPD-NA-8303, " Reload Core Analysis Methodology, Transient and Accident Methods and Verification", Rev. 04, Dated January 1993. (TAC No. MB5845)

R6 FC/TDB

FORT CALHOUN STATION TDB-VI '

TECHNICAL DATA BOOK PROCEDURE PAGE 6 OF 15 ,

3.0 TM/LP Limit The TM/LP coefficients for Cycle 15 are shown below: l c

Table 1 Coefficient Value a 29.73 s 18.44 y - 11360 l The TM/LP setpoint is calculated by the PVAR equation, shown below and in Figure 1:

PVAR = 29.73 PF(B) A1(Y)B + 18.44 TIN - 11360 PF(B) = 1.0 82.100%

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

= 1.4 B s50%

A1(Y) = -0.3529Y, + 1.0882 Y $ 0.25 3

= 0.5714Y3 + 0.857 Yi > 0.25 Where: ,

B = High Auctioneered thermal (AT) or Nuclear Power, % of rated power Y = Axial Shape Index, asiu Tsi = Core Inlet Temperature, CF PVAR = Reactor Coolant System Pressure, psia 4.0 Maximum Core inlet Temoerature The maximum core inlet temperature (T i n) for Cycle 15 shall not exceed 543*F. [

9 FC/TDB R6

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.. FORT CALHOUN STATION TDB-Vi TECHNICAL DATA BOOK PROCEDURE PAGE 7 OF 15 5.0 Ep.ymr Decendent insertion Limit The power dependent insertion limit is defined in Figure 2 foi Cycle 15 operation. l 6.0 Linear Heat Ratt The al!owable peak linear heat rato'vs. burnup for Cycle 15 is 15.5 kW/ft. The allowable peak linear heat rate for Cycle 15 is shown in Figure 3.

7.0 Excore Monitorina of LHH The allowable operation for power versus axial shape index for monitoring of LHR with excore detectors for Cycle 15 is shown in Figure 4. l 8.0 Peakina Factor Limits T

The Cycle 15 maximum full power values for the unrodded planar radial peaking factor (Fxy ) and l integrated radial peaking factor (FRT) are shown in Table 2.

Table 2 Maximum Full Power Fo and yF Limits Peakina Factor LimlLR T 1.77 Fn _

T 1.86 Fxy l 9.0 QMB Monitorina The Cycle 15 limits for DNB as a function of axial shape index and core power is shown in Figure l 5.

When the Better Axial Shape Selection System is operable, during Cycle 15, the core power is limited as a function of the axial shape index as shown in Figure 6. Figure 6 will eliminate the need for seperate LOCA and fuel performance limits to be maintained by the operators while operating with BASSS.

FC/TDB R6

FORT CALHOUN STATION TOB-VI -

l TECHNICAL DATA BOOK PROCEDURE PAGE 8 OF 15 l

l 10.0 FoT . FJ and Core Power Limitations Core power limitations verses FnT and FxyTare shown in Figure 7 for Cycle 15. l k

i' 11.0 Refuelino Boron Concentration The refueling boron concentration must be maintained with a boron concentration of at least 1900 l ppm in the reactor coolant system to ensure a shutdown margin of not less than 5% with all CEAs I

withdrawn.

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R6 FC/TDB

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, -FORT CALHOUN STATION TDB-Vi

, TECHNICAL DATA BOOK PROCEDURE PAGE 9 OF 15 590 l

l l ASI = -0.06 l 4

580 ,

570 \

E 560 NN N l

r N

~

'N \ l 00 psia 24 p 550 s g , \ -

2250 psia -!

540 '

p \ \

2100 psia  ;

530 \

O O

W II: 520 1750 psia O

O .

510 ,

{

500 60 70 80 90 100 110 120 4

l CORE POWER (% OF RATED) l PVAR = 29.73PF(B)A1(Y)B + 18.44Ts i - 11360 ,

t PF(B) = 1.0 B 2.100%

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

= 1.4 B 5 50% ,

A1(Y) = -0.3529Y i + 1.0882 Yi 5 25 I

= 0.5714Yi + 0.857 Yi >.25 CYCLE 15 - THERMAL MARGIN / LOW PRESSURE. FIGURE  :

COLR 4 PUMP OPERATION 1 .

R6

4 FORT CALHOUN STATION TDB-VI TECHNICAL DATA BOOK PROCEDURE PAGE 10 OF 15

- 126

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- 100.8 LC NG Tli.RM STEADYSTA1E ,

g INSERTION UMIT ,

o - 75.6 o

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- 126 - 50.4 g gINSERTION UMrf, '

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$ - 100.8 - 25.2 I .

l ' , PDIL or TRMSIE NT S '

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b 3: 2 - 75.6 -0 l i- f

~- '// INSE.RTIONUMIT ifj Z

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- 50.4 ,

/ 'EMERC>ENCY BORATION LIMIT gy .'/

(12"IIELOVf PDIL - RE :ER TO AOF -3)

- 25.2 - 126 p.2 .

g 5 -0 - 100.8 O

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g 2 - 75.6 o 8 cc x 0 0 - 50.4 d

U - 126 - 25.2

- 100.8 - 0 ,

[ - 75.6 8  !

O - 50.4

- 25.2

-0 0 20 '40 60 80 100-REACTOR POWER (% OF ALLOWED POWER) 1 h.

CYCLE 15 POWER DEPENDENT INSERTION LIMIT FIGURE COLR 2 R6

. =--

., l FORT CALHOUN STATION ' TDB-VI -

TECHNICAL DATA BOOK PROCEDURE PAGE 11 OF 15 i

18 UNACCEPTABLE OPERATION 16  :

15.5 KW/FT I 14 ,

ACCEPTABLE OPERATION 12  :

L h 10 .

W E 8  !

u w ,

x  ;

E i m

6 >

!!E J ,

4 0 1 0 5000 10000 15000 20000 i

l BURNUP (MWD /MTU)

CYCLE 15 ALLOWABLE PEAK LINEAR HEAT RATE FIGURE

- COLR VS.BURNUP -3:

RS

-a'fa_ A . ~,%a q g S

A e

a FORT CALHOUN STATION TDB-VI  !

TECHNICAL DATA BOOK PROCEDURE PAGE 12 OF 15 100 90

( .06,8 3) (.1,80) j y < .

o n.

70 r- 9.7 m L2.vol m

Z  !

O  :

O 60 o  !

W i 3  !

O 50 a

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<C 1 40 0

F-  :

Z .;

W 30 0

x l w i Q. 20 l

10 t

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.4 .2 0 .2 .4 -

AXIAL SHAPE INDEX (ASIU)

=-

CYCLE 15 ~

FIGURE EXCORE MONITORING OF LHR 4 COLR. ,

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FORT CALHOUN STATION TDB-VI l TECHNICAL DATA BOOK PROCEDURE PAGE 13 OF 15 ,

I 110 .

( .079,1ooj (.10,100) 100 '

)f 90 ,

W W ,

g 80 if O (-o.24,70) j (o.24,70)

G. l f m 70 ,

g ,

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O 60 ,

O i W -

g 50 , ,

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u. I O 30 ,

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

NOTE: WHEN BASSS IS OPERABLE THIS FIGURE IS  !

SUPERSCEDED BY FIGURE 6 - BASSS DNB j ALLOWABLE POWER IG CO R DNB MONITORING 5 l

=

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FORT CALHOUN STATION - TDB-VI' ~!

TECHNICAL DATA BOOK PROCEDURE PAGE 14 OF 15.. 3

'110

( .,10,100) (.12,100) 100

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g i -

W g 80 '-"'d " \ 'o 5 d" j

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id 70 .

W 3 O ,. ,

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  • i AXlAL SHAPE INDEX (ASIU)

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CYCLE 15 FIGURE-.

BASSS DNS ALLOWABLE POWER LCO 6

.COLR '

. FORT CALHOUN STATION TDB-VI TECHNICAL DATA BOOK PROCEliURE PAGE 15 OF 15 110 100 (1.86,90)

C 90  %

g (1.77,90) N N O 80 - IN -

W x 79 (1 99,75) (2.n,75)

O O

O 60 W

3 O 50

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<C a 40 O

F-Z 30 W

O T 20 W

CL.

10 0

1.75 1.80 1.85 1.90 1.95 2.00 2.05 2.10 PEAKING FACTOR FRT, pyyT, and Core Power Limitations CO R 7 1

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