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"i'6.Ino;inger'require'' distribuition of .thse ,dcuments 4 (ldentify those no onger required
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Fort Calhoun Station Technical Data BookTDB
Page 3 of 5
J
I Document Document Title Revision/Date
TDB-111.1 5.A Specific Volume vs Temperature (35°F to 200°F) R1 04-05-05
TDB-IX RCS Pressure and Temperature Limits Report RO 09-05-03
June 30. 2005 8:16 AM
PAGE 1 OF 19
Fort Calhoun StationUnit 1
TDB-VI
TECHNICAL DATA BOOK
CORE OPERATING LIMIT REPORT
Change No. EC 36669Reason for Change Add reference requirements consistent with Technical Specification
Amendment No. 196.Requestor Kevin HolthausPreparer Kevin HolthausIssue Date 06-30-05 3:00pm
R31
FORT CALHOUN STATIONTECHNICAL DATA BOOK
TDB-VIPAGE 2 OF 19
Fort Calhoun Station, Unit 1
Core Operating Limit Report
Due to the critical aspects of the safety analysis inputs contained in this report, changes may notbe made to this report without concurrence of the Nuclear Engineering Department.
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FORT CALHOUN STATION TDB-VITECHNICAL DATA BOOK PAGE 3 OF 19
FR T and Core Power Limitations ....................................... 16
Axial Power Distribution LSSS for 4 Pump Operation ....................................... 17
Axial Power Distribution Limits for 4 Pump Operation with Incores Inoperable.. 18
Minimum Boric Acid Storage Tank Level vs. Stored Boric Acid Storage TankConcentration.................................................................................................... 19
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FORT CALHOUN STATION TDB-VITECHNICAL DATA BOOK PAGE 6 OF 19
CORE OPERATING LIMIT REPORT
1. INTRODUCTION
This report provides the cycle-specific limits for operation of the Fort Calhoun StationUnit 1 for Cycle 23 operation. It includes limits for:
* TM/LP LSSS for 4 Pump Operation (PVAR)
* Core Inlet Temperature (TIN)
* Power Dependent Insertion Limit (PDIL)
* Allowable Peak Linear Heat Rate
* Excore Monitoring of LHR
* Integrated Radial Peaking Factor (FRT)
* DNB Monitoring
* FRT versus Power Trade-off Curve
* Refueling Boron Concentration
• Axial Power Distribution (APD)
* Shutdown Margin with TcOLD > 210'F
* Most Negative Moderator Temperature Coefficient
These limits are applicable for the duration of the cycle. For subsequent cycles the limitswill be reviewed and revised as necessary. In addition, this report includes a number ofcycle-specific coefficients used in the generation of certain reactor protective system tripsetpoints or allowable increases in radial peaking factors.
2. CORE OPERATING LIMITS
All values and limits in this TDB section apply to Cycle 23 operation. This cycle must beoperated within the bounds of these limits and all others specified in the TechnicalSpecifications.
This report has been prepared in accordance with the requirements of TechnicalSpecification 5.9.5. The list of references below are complete citations of topical reportsand include the report number, title, revision, date, and any supplements in accordancewith the basis for NRC approval of License Amendment No. 196 which eliminated thesespecific entries from Technical Specification 5.9.5. NRC approval of Amendment No. 196is consistent with the requirements of the Technical Specification Task Force, ImprovedStandard Technical Specification Change Traveler, uRevise Topical Report References inITS 5.6.5 COLR" (TSTF-363-A, Rev. 0). In accordance with this Traveler andAmendment No. 196, this information must be maintained within this TDB section.
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FORT CALHOUN STATION TDB-VITECHNICAL DATA BOOK PAGE 7 OF 19
The values and limits presented within this TDB section have been derived using theNRC approved methodologies listed below:
Where:B = High Auctioneered thermal (AT) or Nuclear Power, % of rated powerY = Axial Shape Index, asiuTIN = Core Inlet Temperature, 'FPVAR = Reactor Coolant System Pressure, psia
4. MAXIMUM CORE INLET TEMPERATURE
The maximum core inlet temperature (TIN) shall not exceed 545'F. This value includesinstrumentation uncertainty of ±2'F (Ref: FCS Calculation FC06292, 6/9/95).
This limit is not applicable during either a thermal power ramp in excess of 5% of ratedthermal power per minute or a thermal power step greater than 10% of rated thermalpower.
5. POWER DEPENDENT INSERTION LIMIT
The power dependent insertion limit is defined in Figure 2.
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FORT CALHOUN STATIONTECHNICAL DATA BOOK
TDB-VIPAGE 9 OF 19
6. LINEAR HEAT RATE
The allowable peak linear heat rate is shown in Figure 3.
7. EXCORE MONITORING OF LHR
The allowable operation for power versus axial shape index for monitoring of LHR withexcore detectors is shown in Figure 4.
8. PEAKING FACTOR LIMITS
The maximum full power value for the integrated radial peaking factor (FRT) is 1.732.
9. DNB MONITORING
The core operating limits for monitoring of DNB are provided in Figure 5. This figureprovides the allowable power versus axial shape index for the cycle.
10. FRT AND CORE POWER LIMITATIONS
Core power limitations versus FRT are shown in Figure 6.
11. REFUELING BORON CONCENTRATION
The refueling boron concentration is required to ensure a shutdown margin of not lessthan 5% with all CEAs withdrawn. The refueling boron concentration must be at least1,900 ppm through the end of Cycle 22 operation and is valid until the beginning of corereload for Cycle 23.
Listed below in Table 2 are the refueling boron concentration values for cycle operations:
Table 2 - Refueling Boron Concentrations
Cycle Average Burnup(MWD/MTU)
BOC
> 2,000
> 4,000
Refueling BoronConcentration (ppm)
2,141
2,014
1,900
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FORT CALHOUN STATION TDB-VITECHNICAL DATA BOOK PAGE 10 OF 19
12. AXIAL POWER DISTRIBUTION
The axial power trip is provided to ensure that excessive axial peaking will not cause fueldamage. The Axial Shape Index is determined from the axially split excore detectors.The setpoint functions, shown in Figure 7 ensure that neither a DNBR of less than theminimum DNBR safety limit nor a maximum linear heat rate of more than 22 kW/ft(deposited in the fuel) will exist as a consequence of axial power maldistributions.Allowances have been made for instrumentation inaccuracies and uncertaintiesassociated with the excore symmetric offset - incore axial peaking relationship. Figure 8combines the LHR LCO tent from Figure 4, the DNB LCO tent from Figure 5, and theAPD LSSS tent from Figure 7 into one figure for a visual comparison of the differentlimits.
13. SHUTDOWN MARGIN WITH Tcold > 210-F
Whenever the reactor is in hot shutdown, hot standby or power operation conditions, theshutdown margin shall be 23.6% Ak/k. With the shutdown margin <3.6% Ak/k, initiateand continue boration until the required shutdown margin is achieved.
14. MOST NEGATIVE MODERATOR TEMPERATURE COEFFICIENT
The moderator temperature coefficient (MTC) shall be more positive than-3.30 x 104 Ap/PF, including uncertainties, at rated power.
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FORT CALHOUN STATIONTECHNICAL DATA BOOK
TDB-VIPAGE 1 1 OF 19
590
LL
Li
w.11
0-:
UJI
H-iz
F-
z-J00
LILw00)
580
570
560
550
540
530
520
510
50060 70 80 90 100
CORE POWER (% OF RATED)
110 120
PVAR = 29.6 PF(B)A1(Y)B + 20.63TIN - 12372
PF(B) = 1.0
= -.008B+1.8
B 2 100%
50% < B < 100%
B < 50%
Al (Y) = -0.6666Y 1 + 1.000
= +0.3333Y, + 1.000
Y. < 0.00
Y. > 0.00
= 1.4
THERMAL MARGIN I LOW PRESSUREFOR 4 PUMP OPERATION
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FORT CALHOUN STATIONTECHNICAL DATA BOOK
TDB-VIPAGE 12 OF 19
I
z
I-
C',
Il0zU,
z0-F
M-0
CL
wC.,:
CY)
0Q(D
a-0
-126 (9
-100.8
-75.6
-50.4
-25.2
-0
-126
-100.8
-75.6
-50.4
-25.2
-0
I I ISHORT TERM
INSERTION LIMIT
7F[
. . .
I I ILONG TERM STEADY,'
INSERTION LIMIl-4-1-4-I
3TATE
..
x PDIL
PDIL or TRANSIENTINSERTION LIMIT
41
(104.5)(94.5)
(82.51
(N
0~
(D
(35.21
-126 (25.21
(13.2)
-100.8
-75.6
-50.4
-25.2
-0
-/ x. ' EMERGENCY BORATION LIMIT
12" BELOW PDIL - REFER TO AOP-3
a.
0Q(D
-126
-100.8
-75.6
-50.4
-25.2
-00 20 40 60 80
REACTOR POWER (% OF ALLOWED POWER)
100
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FORT CALHOUN STATIONTECHNICAL DATA BOOK
TDB-VIPAGE 13 OF 19
18
16
14
V 12
LU
w 10
IAd 8
z
J 6
4
2
I I IUNACCEPTABLE OPERATION
I I I
I I I
15.5 KW/FT
I I I
ACCEPTABLE OPERATION
0 5000 10000 15000 20000
BURNUP (MWD/MTU)
CYCLE23 ALLOWABLE PEAK LINEAR HEAT RATE FIGURECOLR VS. BURNUP 3
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FORT CALHOUN STATIONTECHNICAL DATA BOOK
TDB-VIPAGE 14 OF 19
110
100
90
w
3:
C)0
w0
0
0-J
LIL0I--z0wIli
80
70
60
50
40
30
20
10
0
-0.6 -OA -0.2 0.0 0.2 0.4 0.6
AXIAL SHAPE INDEX (ASIU)
CYCLE 23I. FIGURECOLR EXCORE MONITORING OF LHR I
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FORT CALHOUN STATIONTECHNICAL DATA BOOK
TDB-VIPAGE 15 OF 19
110
100
90
w00~
w
00
0r-J
-j
LL0
zwwa.
80
70
60
50
40
30
20
10
0
-1.0 -0.8 -0.6 -0.4 -0.2 0.0 02 0.4 0.6 0.8 1.0
AXIAL SHAPE INDEX (ASIU)
CYCLE23| DNB MONITORING FIGURECOLR | 5
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FORT CALHOUN STATIONTECHNICAL DATA BOOK
TDB-VIPAGE 16 OF 19
110
(1.732,100) 1 1100
w
Lu
0a.a-w0U0w
11.0-jU-
0F-zC.)w0uEL
90
80
70
60
50
\5,86(1.817,80)
40
30
20
10
0
1.70 1.75 1.80 1.85 1.90
PEAKING FACTOR
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FORT CALHOUN STATION TDB-VITECHNICAL DATA BOOK PAGE 17 OF 19
150
(0,140)140
130
120…_ -
110-*
w
-10 (-0.2,10) -0 -0 0 0.4,80.6 0 1.0
08
0~
z 4
11-50
AXIAL SHAPE INDEX (ASIU)
CCE23 AXIAL POWER DISTRIBUTION LSSS FIGURE.COLR FOR 4 PUMP OPERATION 7
R31
FORT CALHOUN STATION TDB-VITECHNICAL DATA BOOK PAGE 18 OF 19
150…--II-i---
140 … APD LSSS
130 ……
120…m-DNBR KW/FT
110 MONITORING…-MONITORING0 LIMIT LIMIT
o X100…M0~
L 90…
080 7
70
710----- -0. 04-0.2 -~ . . . . .
\,0
60----
U-
zWL 40--…
C-)
20…
10…
0…
-1.0 -0.8 -0.6 -0.4 -0.2 0.0 0.2 0.4 0.6 0.8 1.0
AXIAL SHAPE INDEX (ASIU)
CYCLE 23 AXIAL POWER DISTRIBUTION LIMITS FOR 4 FIGURECOLR PUMP OPERATION WITH INCORES INOPERABLE 8