L-20-085, Core Operating Limits Report, Cycle 22, Revision 0
| ML20090F378 | |
| Person / Time | |
|---|---|
| Site: | Davis Besse  |
| Issue date: | 03/30/2020 |
| From: | Bezilla M Energy Harbor Nuclear Corp |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| L-20-085 | |
| Download: ML20090F378 (25) | |
Text
1111:1 energy Energy Harbor Nuclear Corp.
Davis-Besse Nuclear Power Station
~ harbor 5501 N. State Route 2 Oak Harb or, Ohio 43449 Mark B. Bezilla 419-321-7676 Site Vice President, Davis-Besse Nuclear March 30, 2020 L-20-085 ATTN: Document Control Desk U.S. Nuclear Regulatory Commission Washington, DC 20555-0001
SUBJECT:
Davis-Besse Nuclear Power Station, Unit No.1 Docket No. 50-346, License No. NPF-3 Core Operating Limits Report, Cycle 22, Revision 0 Enclosed is Revision Oto the Davis-Besse Nuclear Power Station, Unit No. 1 (DBNPS)
Cycle 22 Core Operating Limits Report (COLR). Submittal of this revision is in accordance with DBNPS Technical Specification 5.6.3, "CORE OPERATING LIMITS REPORT (COLR)."
There are no regulatory commitments contained in this letter. If there are any questions or if additional information is required, please contact Mr. Phil H. Lashley, Acting i// '
Manager, Nuclear Licensing and Regulatory Affairs, at (330) 315-6808.
I /I /'./
~ i (!JtXJ ( 17v(/
S.incer~ ,
M'ark B. Bezilla /
Enclosure:
Cycle 22, Core Operating Limits Report, Revision 0 cc: NRC Region Ill Administrator NRC Resident Inspector NRR Project Manager Utility Radiological Safety Board
Enclosure L-20-085 Cycle 22, Core Operating Limits Report, Revision 0 (23 pages follow)
Davis-Besse Cycle 22 COLR Page 1 of 23 Revision O FIRSTENERGY NUCLEAR OPERATING COMPANY DAVIS-BESSE UNIT 1 CYCLE 22 CORE OPERATING LIMITS REPORT Prepared by JJ-~ G- I ~
D. B. Kelley 2125120 Reviewed b ~ 2;/2(/4.ao
<----' lass Approved by ,:/2/3.,.,.,.---.._1../1... 7/~O J. D. Brown
Davis-Besse Cycle 22 COLR Page 2 of 23 Revision 0 1.0 Core Operating Limits This CORE OPERATING LIMITS REPORT for DB-1 Cycle 22 has been prepared in accordance with the requirements of Technical Specification 5.6.3. The Core Operating Limits have been developed using the methodology provided in Reference 2.0 (1). The licensed length of Cycle 22 is 710 EFPDs.
The following cycle-specific core Operating Limits, Protective Limit and Flux-~ Flux -Flow Reactor Protection System Allowable Values are included in this report:
- 1. SL 2.1.1.1 Reactor Core Safety Limits
- 2. LCO 3.1.1 SHUTDOWN MARGIN (SOM)
- 3. LCO 3.1.3 Moderator Temperature Coefficient (MTC)
- 4. LCO 3.1.7 Position Indicator Channels
- 5. LCO 3.1.8 PHYSICS TESTS Exceptions - MODE 1
- 6. LCO 3.1.9 PHYSICS TESTS Exceptions - MODE 2
- 7. LCO 3.2.1 Regulating Rod Insertion Limits
- 8. LCO 3.2.2 AXIAL POWER SHAPING ROD (APSR) Insertion Limits
- 9. LCO 3.2.3 AXIAL POWER IMBALANCE Operating Limits
- 10. LCO 3.2.4 QUADRANT POWER TILT (QPT)
- 11. LCO 3.2.5 Power Peaking Factors
- 12. LCO 3.3.1 Reactor Protection Systems (RPS) Instrumentation Function 8: (Flux - ~Flux - Flow) Allowable Values
- 14. TRM 8.1.3 Rod Program 2.0 References
- 1) BAW-10179P-A, Rev. 9, "Safety Criteria and Methodology for Acceptable Cycle Reload Analyses", November 2017.
Davis-Besse Cycle 22 COLR Page 3 of 23 Revision 0 Table of Contents Pae Reactor Core Safety Lim its Figure 1 AXIAL POWER IMBALANCE Protective Limits Davis-Besse 1, Cycle 22 5 SHUTDOWN MARGIN (SDM)
Table 1 Shutdown Margin Requirements for Davis-Besse, Cycle 22 6 Moderator Temperature Coefficient (MTC)
Table 2 Moderator Temperature Coefficient Limit for Davis-Besse, Cycle 22 7 Position Indicator Channels Table 3 Absolute Position Indicator (API) / Relative Position Indicator (RPI)
Agreement Limit for Davis-Besse, Cycle 22 8 Regulating Rod Insertion Limits Figure 2a Regulating Group Position Operating Limits 0 to 300 +/- 10 EFPD, Four RC Pumps Davis-Besse 1, Cycle 22 9 Figure 2b Regulating Group Position Operating Limits After 300 +/- 10 EFPD, Four RC Pumps Davis-Besse 1, Cycle 22 1O Figure 2c Regulating Group Position Operating Limits 0 to 300 +/- 10 EFPD, Three RC Pumps Davis-Besse 1, Cycle 22 11 Figure 2d Regulating Group Position Operating Limits After 300 +/- 10 EFPD, Three RC Pumps Davis-Besse 1, Cycle 22 12 AXIAL POWER SHAPING ROD (APSR) Insertion Limits Figure 3 APSR Position Operating Limits for Davis-Besse, Cycle 22 13 AXIAL POWER IMBALANCE Operating Limits Figure 4a AXIAL POWER IMBALANCE Operating Limits 0 EFPD to EOC, Four RC Pumps Davis-Besse 1, Cycle 22 14 Figure 4b AXIAL POWER IMBALANCE Operating Limits 0 EFPD to EOC, Three RC Pumps Davis-Besse 1, Cycle 22 15
Davis-Besse Cycle 22 COLR Page 4 of 23 Revision 0 Table of Contents Pae QUADRANT POWER TILT (QPT)
Table 4 QUADRANT POWER TILT Limits for Davis-Besse, Cycle 22 16 Power Peaking Factors Table 5 Power Peaking Factors - Fa for Davis-Besse, Cycle 22 17 Table 6 Power Peaking Factors - FNllH for Davis-Besse, Cycle 22 19 Figure 5 Maximum Allowable Radial Peak for FNllH for Davis-Besse, Cycle 22 19 Table 7 Maximum Allowable Radial Peak for FNllH for Davis-Besse, Cycle 22 20 Reactor Protection System (RPS) Instrumentation Figure 6 Flux-~Flux-Flow (or Power/Imbalance/Flow) Allowable Values Davis-Besse 1, Cycle 22 21 Boron Concentration Table 8 Refueling Boron Concentration Limit for Davis-Besse, Cycle 22 22 Rod Program Figure 7 Control Rod Core Locations and Group Assignments for Davis-Besse, Cycle 22 23
Davis-Besse Cycle 22 COLR Page 5 of 23 Revision 0 Figure 1 AXIAL POWER IMBALANCE Protective Limits Da"1s-Besse 1, Cycle 22 This Figure is referred to by Technical Specification 2.1. 1. 1 120
(-36.10, 110.2) (29.00, 110.2)
- - - - - - 1 1 0.....- - - - - - .
4 PUMP LIMIT
(-42.50, 103.8) 100
(-36.10, 90.0) 0 (38.40, 86.5) 3 PUMP LIMIT
(-42.50, 83.6) 80 70 (38.40, 66.3) 60
....J
~
UNACCEPTABLE ffiI 50 UNACCEPTABLE OPERATION I-OPERATION I- 40
~ ACCEPTABLE 0 OPERATION c FOR SPECIFIED 30 t
Q) u RC PUMP
~ COMBINATION 3: 20 10 70 -60 -50 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 AXIAL POWER IMBALANCE, %
Required Measured 4 Pumo 3 Pumo Reactor Coolant Flow to Ensure Power Negatiw Positiw Power Negatiw Positiw Lewi Imbalance Imbalance Lewi Imbalance Imbalance m
110.2 -36.10 29.00 90.0 -36.10 29.00 103.8 -42.50 - 83.6 -42.50 -
86.5 -42.50 38.40 66.3 -42.50 38.40 0.0 -42.50 38.40 0.0 -42.50 38.40
Davis-Besse Cycle 22 COLR Page 6 of 23 Revision 0 Table 1 Shutdown Margin Requirements for Davis-Besse, Cycle 22 Verify SHUTDOWN MARGIN per the table below.
REQUIRED SHUTDOWN TECHNICAL SPECIFICATIONS APPLICABILITY MARGIN REFERENCE MODE 1 * ~ 1 %~k/k *** 3.1.4, 3.1.5 MODE 2 * ~ 1 %~k/k 3.1.4, 3.1.5, 3.3.9 MODE3 ~ 1 %~k/k 3.1.1, 3.3.9 MODE4 ~ 1 %~k/k 3.1.1, 3.3.9 MODES ~ 1 %~k/k 3.1.1, 3.3.9 MODE 1 PHYSICS TESTS
~ 1 %~k/k 3.1.8 Exceptions **
MODE 2 PHYSICS TESTS
~ 1 %~k/k 3.1.9 Exceptions
- The required Shutdown Margin capability of 1 %~k/k in MODE 1 and MODE 2 is preserved by the Regulating Rod Insertion Limits specified in Figures 2a through 2d as required by Technical Specification 3.2.1.
- Entry into Mode 1 Physics Tests Exceptions is not supported by existing analyses. For example, Regulating Rod Shutdown Margin Insertion Limits assumptions may not be met and as such requires actual shutdown margin to be ~ 1 %~k/k via alternate verification or calculation.
Davis-Besse Cycle 22 COLR Page 7 of 23 Revision 0 Table 2 Moderator Temperature Coefficient Limit for Davis-Besse, Cycle 22 These limits are referred to by Technical Specifications 3.1.3
- 1. Lower Limit:
MTC at HFP ~ -3.891x1Q- 4 b.k/k/°F (-38.91 pcm/°F)
- 2. The following Upper Limits may not be exceeded without prior NRC approval:
MTC <0.9 x 10-4 b.k/k/°F when Thermal Power <95% RTP MTC <0.0 x 10-4 b.k/k/°F when Thermal Power ~95% RTP
- 3. The following Upper Limits may not be exceeded for operation in Modes 1 and 2:
1.0E-04 C
Cl) 9.0E-05
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ I, _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ .JI _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ ..
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I I I 6.0E-05 I I I I
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I 'I I I I I Cl) 4.0E-05 -----------------------.-----------------------.,----
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I I I I I I I I I I I I I I I I I I I I 0 3.0E-05 I I I I 16 Cl)
'O 2.0E-05 0 -------------+--------------------1----------------------i - -------------+--------------------1
- E 1.0E-05 0.0E+00
- : : : I 0 20 40 60 80 100 Percent Full Power
Davis-Besse Cycle 22 COLR Page 8 of 23 Revision 0 Table 3 Absolute Position Indicator (API) / Relative Position Indicator (RPI)
Agreement Limit for Davis-Besse, Cycle 22 This limit is referred to by Technical Specifications 3.1.7 The absolute position indicator channels and the relative position indicator channels agree within 3.00%.
Davis-Besse Cycle 22 COLR Page 9 of 23 Revision 0 Figure 2a Regulating Group Position Operating Limits 0 to 300 +/-10 EFPD, Four RC Pumps Da"1s-Besse 1, Cycle 22 This Figure is referred to by Technical Specifications 3.2.1 110 100 . -
/
I I/ J 90 j J
/
Unacceptable I 12' 80 Operation /
w I.I s
0 I
V Operation a.. 70 ,/ Restricted ,, I/
....I /
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50 --
V 0 Margin ,,,.
/
~ -- Limit ,,,.
-c V V
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0 40 ,I
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1--'
1--'
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~
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V 1--' --- Operation
/ 1--'
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i0 20 a.. V
,V 10 ./
0 0 25 50 75 100 125 150 175 200 225 250 275 300 Rod Index, % Withdrawn Note 1: A Rod Group overlap of 25 +/- 5% between sequential w ithdrcM'n groups 5 and 6, and 6 and 7, shall be maintained.
Note 2: lnstrurrent error is accounted for in these Operating Linits.
Note 3: Maximum plotted power level is 100.37 %RTP.
SOM Limit RI Limit Power RI Power RI 100.37 177.60 100.37 300.00 58.00 111.50 100.37 277.40 23.00 33.50 90.00 266.50 7.70 0.00 78.00 251.50 58.00 206.50 23.00 33.50 7.70 0.00
Davis-Besse Cycle 22 COLR Page 10 of 23 Revision 0 Figure 2b Regulating Group Position Operating Limits After 300 +/-10 EFPD, Four RC Pumps Da\As-Besse 1, Cycle 22 This Figure is referred to by Technical Specifications 3.2.1 110 100 I/ J I 1 Operation 90 Restricted I ',/
....... __ I I Unacceptable l"J'o I Operation w 80
~ I ',/
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0 V a.. 70 if
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~ Margin V /
Limit J
0 I /
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I J (1) I ~ Acceptable
~
(1) 30 I
/ I/
/
Operation
~
j I...
~ 20 I I
0 a..
10 --
~
0 0 25 50 75 100 125 150 175 200 225 250 275 300 Rod Index, %Withdrawn Note 1: A Rod Group overlap of 25 +/- 5% between sequential withdrawn groups 5 and 6, and 6 and 7, shall be maintained .
Note 2: Instrument error is accounted for in these Operating Units .
Note 3: Maxirrum plotted pow er level is 100.37 % RTP.
SDM Limit RI Limit Power RI Power RI 100.37 230.10 100.37 300.00 58.00 174.50 100.37 277.40 23.00 141 .50 90.00 266.50 2.80 0.00 78.00 251 .50 58.00 206.50 23.00 141.50 2.80 0.00
Davis-Besse Cycle 22 COLR Page 11 of 23 Revision 0 Figure 2c Regulating Group Position Operating Limits 0 to 300 +/-10 EFPD, Three RC Pumps Da\ns-Besse 1, Cycle 22 This Figure is referred to by Technical Specifications 3.2.1 110 100 90 i2' 80 w
s 0 "
Unacceptable /
- a. 70 / /
Operation
_J I/
<( /
I /
~
w 60
/
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i:!:
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0 -
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-c J I/
/ V
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(I)
~ 30 ...
(I) e::, ....
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- ~...-
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~ 20 /
-- Acceptable
- a. I/
Operation 1./
10 V 0
0 25 50 75 100 125 150 175 200 225 250 275 300 Rod Index, % Withdrawn Note 1: A Rod Group overlap of 25 +/- 5% between sequential withdrawn groups 5 and 6, and 6 and 7, shall be maintained.
Note 2: lnstrurrent error is accounted for in these Operating Limts .
Note 3: Maximum plotted power level is 75.37%RTP.
SOM Limit RI Limit Power RI Power RI 75.37 139.30 75.37 300.00 43.10 93.50 75.37 278.10 16.80 33.50 67.00 266.50 5.40 0.00 58.00 251.50 43.00 206.50 16.80 33.50 5.40 0.00
Davis-Besse Cycle 22 COLR Page 12 of 23 Revision 0 Figure 2d Regulating Group Position Operating Limits After 300 +/-.10 EFPD, Three RC Pumps Davis-Besse 1, Cycle 22 This Figure is referred to by Technical Specifications 3.2.1 110 100 90 c? 80 w
~
0 )
a.. 70 Unacceptable J J
/
__J I Operation J
<( Operation I
~ I/ Restricted w 60 I/
0::: I ....
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-~ __ .,
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~ 20 I I
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Operation 0
a.. II' 10 ....
c--
0 0 25 50 75 100 125 150 175 200 225 250 275 300 Rod Index, %Withdrawn Note 1: A Rod Group overlap of 25 +/- 5% between sequential withdrawn groups 5 and 6, and 6 and 7, shall be maintained.
Note 2: Instrument error is accounted for in these Operating Units .
Note 3: Maxirrum plotted pow er level is 75.37 3/4RTP.
SOM Limit RI Limit Power RI Power RI 75.37 205.70 75.37 300.00 43.10 169.50 75.37 278.10 16.80 141.50 67.00 266.50 1.60 0.00 58.00 251.50 43.00 206.50 16.80 141.50 1.60 0.00
Davis-Besse Cycle 22 COLR Page 13 of 23 Revision 0 Figure 3 APSR Position Operating Limits for Davis-Besse, Cycle 22 This Figure is referred to by Technical Specifications 3.2.2 Before APSR Pull: 0 EFPD to 648 +/- 10 EFPD, Three or Four RC pumps operation*
Lower Limit: 0 %WO Upper Limit: 100 %WO After APSR Pull: 648 +/- 10 EFPD to End-of-Cycle Three or Four RC pumps operation*
Insertion Prohibited (maintain ~ 99%WD) **
- Power restricted to 75.37% for 3-pump operation, however, steam generator analyses limits power to 73.46 %RTP.
- Reinsertion is allowed only during the end of cycle shutdown when the reactor power is equal to, or less than, 30%RTP.
Davis-Besse Cycle 22 COLR Page 14 of 23 Revision 0 Figure 4a AXIAL POWER IM BALANCE Operating Limits 0 EFPD to EOC, Four RC Pumps Davi s-Besse 1, Cycle 22 This Figure is referred to by Technical Specification 3.2.3 11 0 I I I
,ij 1..-j 10 0 I
- 11 1111
-- Restricted ,. r-l,ij I "Ill
-- l,ij I "'11o.. , Restricted
-- r- I Region Region "Jj
"' l 1,1 90 I
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80 I I I I I I 70 I
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60 II c? I w I
~ I 0- -50 a..
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I w - -40I Permissible Operating
~ I Region 0 I
~- -30
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0 I I cQ) --20 I
~ I Q) e:,
r I
i-10 I
0 I a.. I I
0 I
-60 -50 -40 -30 -20 -10 0 10 20 30 40 50 60 AXIAL POWER IMBALANCE%
LEGEND Note 1: Instrument error is accounted for in these Operating Lim its. FlillNCORE Note 2: The Excore Imbalance Operating Limits are available for use when the Full lncore system is non-functional. EXCORE Note 3: Maximum plotted power level is 100.37 %RTP. 0 Full lncore Excore Negatiw Positiw Negatiw Positiw Power Imbalance Imbalance Power Imbalance Imbalance 100.37 -22.84 16.21 100.37 -15.17 8.95 92.00 -30.60 21.04 92.00 -23.29 20.12 80.00 -30.60 26.32 80.00 -30.28 26.32 60.00 -30.60 27.60 60.00 -30.60 27.60 0.00 -30.60 27.60 0.00 -30.60 27.60
Davis-Besse Cycle 22 COLR Page 15 of 23 Revision 0 Figure 4b AXIAL POWER IMBALANCE Operating Limits 0 EFPDto EOC, Three RC Pumps Da\ns-Besse 1, Cycle 22 This Figure is referred to by Technical Specification 3.2.3 110 10G
~o I
I
- o
, I
.......... I., i, ('Ill 1 Restricted I.; t'7Q *l"I Restricted
........ Region
, Region j \
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w Permissible Operating
~ Region Cl
~- -30
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-20.
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r I
i-10 0
a..
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-60 -50 -40 -30 -20 -10 10 20 30 40 50 60 AXIAL POWER IMBALANCE%
LEGEND Note 1: Instrument error is accounted for in these Operating Limits. FDITTNCORE Note 2: The Excore Im balance Operating Lim its are available for use when the Full In core system is non-functional. EXCORE Note 3: Maximum plotted power level is 75.37 3/4RTP.
0 Full lncore Excore Negati\e Positi\e Negati\e Positiw Power Imbalance Imbalance Power Imbalance Imbalance 75.37 -22.31 16.33 75.37 -16.09 9.87 69.00 -28.69 19.14 69.00 -24.10 19.14 60.00 -30.60 23.10 60.00 -30.60 23.10 45.00 -30.60 27.60 45.00 -30.60 27.60 0.00 -30.60 27.60 0.00 -30.60 27.60
Davis-Besse Cycle 22 COLR Page 16 of 23 Revision 0 Table 4 QUADRANT POWER TILT Limits for Davis-Besse, Cycle 22 This Table is referred to by Technical Specifications 3.2.4 From O EFPD to 300 EFPD Steady-state Lim it Steady-state Limit QUADRANT for THERMAL for THERMAL POWER TILT as POWERS 60% POWER >60% Transient Limit Maximum Limit measured by: (%) (%) (%) (%)
Symmetric lncore 7.90 5.60 10.03 20.00 Detector System Minimum lncore 3.20 2.01 4.40 20.00 Detector System
- From 300 EFPD to EOC Steady-state Limit Steady-state Lim it QUADRANT for THERMAL for THERMAL POWER TILT as POWERS 60% POWER >60% Transient Limit Maximum Limit measured by: (%) (%) (%) (%)
Symmetric lncore 7.90 4.32 10.03 20.00 Detector System Minimum lncore 3.20 1.90 4.40 20.00 Detector System *
- These operating limits are based on the condition that no individual long emitter detector affecting the Minimum lncore Detector System tilt calculation exceeds 73% sensitivity depletion, which is the case for Cycle 22.
Davis-Besse Cycle 22 COLR Page 17 of 23 Revision 0 Table 5 Power Peaking Factors - Fa for Davis-Besse, Cycle 22 This Table is referred to by Technical Specifications 3.2.5 Heat Flux Hot Channel Factor Fa Fa shall be limited by the following relationships:
Fas LHRallow (Bu)/ [LHRavg
- P] (for P s 1.0)
LHRallow (Bu) = See the following tables LHRavg = 6.4265 kW/ft at 2817 MWt for all fuel P = ratio of THERMAL POWER/ RATED THERMAL POWER (current fraction of power)
Bu = fuel burnup (MWd/mtU)
Note: The measured Fa shall be increased by 1.4% to account for manufacturing tolerances and further increased by 7.5% to account for measurement uncertainty before comparing to the limits. The core monitoring system computer-generated FQ values are augmented by the required uncertainties.
UO2 Fuel (Mark-B-HTP) -All Batches except Batch 23A LHRALLow kW/ft<a>
0 30,000 62,000 Core Elevation (ft) MWd/mtU MWd/mtU MWd/mtU 0 17.8 17.8 12.8 2.506 17.8 17.8 12.8 4.264 17.6 17.6 12.8 6.021 17.0 17.0 12.8 7.779 17.0 17.0 12.8 9.536 16.4 16.4 12.8 12.000 15.5 15.5 12.1 UO2 Fuel (Mark-B-HTP) - Batch 23A LHRALLow kW/ft(a) 0 30,000 45,000 Core Elevation (ft) MWd/mtU MWd/mtU MWd/mtU 0 17.6 17.6 15.4 2.506 17.6 17.6 15.4 4.264 17.4 17.4 15.2 6.021 16.8 16.8 14.9 7.779 16.8 16.8 14.9 9.536 16.2 16.2 14.6 12.000 15.4 15.4 13.9
<a> Linear interpolation for allowable LHR between specified burnup points is valid for these tables.
Davis-Besse Cycle 22 COLR Page 18 of 23 Revision 0 Table 5 (continued) 4 wt% Gad Fuel (Mark-B-HTP) -All Batches LHRALLow kW/ft(a) 0 30,000 55 ,000 Core Elevation (ft) MWd/mtU MWd/mtU MWd/mtU 0 16.2 15.6 12.2 2.506 16.2 15.6 12.2 4.264 16.0 15.4 12.1 6.021 15.4 14.9 12.0 7.779 15.4 14.9 12.0 9.536 14.9 14.4 11.9 12.000 14.1 13.6 11.3 6 wt% Gad Fuel (Mark-B-HTP) -All Batches LHRALLow kW/ft(a) 0 30,000 55,000 Core Elevation (ft) MWd/mtU MWd/mtU MWd/mtU 0 15.6 15.3 11 .9 2.506 15.6 15.3 11.9 4.264 15.4 15.1 11.9 6.021 14.9 14.6 11.7 7.779 14.9 14.6 11.7 9.536 14.4 14.1 11.7 12.000 13.6 13.3 11.1 8 wt% Gad Fuel (Mark-B-HTP) -All Batches LHRALLow kW/ft<a>
0 30,000 55,000 Core Elevation (ft) MWd/mtU MWd/mtU MWd/mtU 0 15.1 14.9 11.6 2.506 15.1 14.9 11.6 4.264 14.9 14.7 11.6 6.021 14.4 14.2 11.5 7.779 14.4 14.2 11.5 9.536 13.9 13.7 11.4 12.000 13.2 13.0 10.8
<a> Linear interpolation for allowable LHR between specified burnup points is valid for these tables.
Davis-Besse Cycle 22 COLR Page 19 of 23 Revision 0 Table 6 Power Peaking Factors - FN~H for Davis-Besse, Cycle 22 This Table is referred to by Technical Specifications 3.2.5 Enthalpy Rise Hot Channel Factors - FNLlH FNLlH s MARP [1 + (1/RH) (1 - P/Pm)] (see note below)
MARP = Maximum Allowable Radial Peak, see MARP Figures and data Tables P = THERMAL POWER/ RATED THERMAL POWER and P s 1.0 Pm = 1.00 for 4-RCP operation Pm = 0. 75 for 3-RCP operation 1/RH = 0.3 RH = 3.333 Note: The measured FNLlH shall be increased by 5.0% to account for measurement uncertainty prior to comparing to the limits. The core monitoring system-generated FNLlH values are augmented by the required uncertainties.
Figure 5 Maximum Allowable Radial Peak for FN~H for Davis-Besse, Cycle 22
- 2 .2 ~ - - - - -
2.1
- x/L=1.0 x/L=0.9 x/L=0.88 x/L=0.8
. x/L=0.6 x/L=0.5
__._ x/L=0.4 --:-- x/L=0.2
....,_x/L=0.14 - x/L=0.1
-+- x/L=0.0 1.3 1.10 1.20 1.30 1.40 1.50 1.60 1.70 1.80 1.90 Axial Peak
- Linear interpolation is acceptable.
Davis-Besse Cycle 22 COLR Page 20 of 23 Revision 0 Table 7 Maximum Allowable Radial Peak for FNllH for Davis-Besse, Cycle 22 Axial Axial Axial Height Axial Height Peak x/L (inches} MARP Limit Peak x/L (inches} MARP Limit 0.0 0.00 1.88299 0.0 0.00 2 .09189 0.1 14.30 1.88398 0.1 14.30 2.03919 0.14 20.02 1.88428 0.14 20.02 2.01827 0.2 28.60 1.88461 0.2 28.60 1.98801 0.4 57.20 1.88490 0.4 57.20 1.86840 1.1 0.5 71.50 1.88439 1.6 0.5 71 .50 1.81257 0.6 85.80 1.88451 0.6 85.80 1.73794 0.8 114.40 1.88421 0.8 114.40 1.59754 0.88 125.84 1.85239 0.88 125.84 1.54331 0.9 128.70 1.83969 0.9 128.70 1.55084 1.0 143.00 1.73842 1.0 143.00 1.46874 0.0 0.00 1.96511 0.0 0.00 1.99604 0.1 14.30 1.96705 0.1 14.30 1.95702 0.14 20.02 1.96804 0.14 20.02 1.93661 0.2 28.60 1.96825 0.2 28.60 1.90615 0.4 57.20 1.96936 0.4 57.20 1.79933 1.2 0.5 71.50 1.96984 1.7 0.5 71 .50 1.74468 0.6 85.80 1.96919 0.6 85.80 1.67736 0.8 114.40 1.84278 0.8 114.40 1.54415 0.88 125.84 1.78287 0.88 125.84 1.49299 0.9 128.70 1.78220 0.9 128.70 1.50138 1.0 143.00 1.67994 1.0 143.00 1.42245 0.0 0.00 2.05580 0.0 0.00 1.90606 0.1 14.30 2.05912 0.1 14.30 1.87049 0 .14 20.02 2.06036 0.14 20.02 1.85710 0.2 28.60 2.06155 0.2 28.60 1.82954 0.4 57.20 2.06343 0.4 57.20 1.73365 1.3 0.5 71.50 2.01583 1.8 0.5 71.50 1.67902 0.6 85.80 1.93900 0.6 85.80 1.62023 0.8 114.40 1.77864 0.8 114.40 1.49550 0.88 125.84 1.71670 0.88 125.84 1.44607 0.9 128.70 1.72105 0.9 128.70 1.45590 1.0 143.00 1.61890 1.0 143.00 1.37861 0.0 0.00 2.15314 0.0 0.00 1.82131 0.1 14.30 2.15758 0.1 14.30 1.78903 0.14 20.02 2.15910 0.14 20.02 1.78024 0.2 28.60 2.14648 0.2 28.60 1.75713 0.4 57.20 2.01712 0.4 57.20 1.67040 1.4 0.5 71.50 1.95015 1.9 0.5 71.50 1.61847 0.6 85.80 1.87083 0.6 85.80 1.56653 0.8 114.40 1.71630 0.8 114.40 1.44958 0.88 125.84 1.65545 0.88 125.84 1.40281 0.9 128.70 1.65903 0.9 128.70 1.41322 1.0 143.00 1.57207 1.0 143.00 1.33783 0.0 0.00 2.17667 0.1 14.30 2.12413 0.14 20.02 2.10403 0.2 28.60 2.07451 0.4 57.20 1.94104 1.5 0.5 71.50 1.88067 0.6 85.80 1.80330 0.8 114.40 1.65555 0.88 125.84 1.59706 0.9 128.70 1.60415 1.0 143.00 1.51859
Davis-Besse Cycle 22 COLR Page 21 of 23 Revision 0 Figure 6 Flux-~Flux-Flow (or Power/Im balance/Flow)
Allowable Values Davis-Besse 1, Cycle 22 I This Figure is referred to by Technical Specification 3.3.1 12: I I I I I I I
110 ~~4 PUMP LIMIT
(-17 .0, 108.0)
I I
,, ,, I I
., (14 .o, 1oa .o; I I
~,,, P' I I
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I I
(-30 .6, 94.4)
~
9" l
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~
'1 (27.6, 77.1 J 3PUMP
- 1. . .
- 1. . . l I.J EXAMPLE
... 7: ,
~
f
~
.~
....J '
- UNACCEPTABLE ~- *5: UNACCEPTABLE
- OPERATION ffi OPERATION
¢:
~ -
--~- --
~
0 I
~30 ACCEPTABLE t:
0-OPERATION FOR SPECIFIED RC Q) - PUMP 3: - ~2:
I 1:
In
-60 -50 -40 -30 -20 -10 0 10 20 30 40 50 60 AXIAL POWER IMBALANCE, %
The 3 pump example curve shows allowable values for an approximately25% flow reduction for three pump operation (283,860 gpm ). The actual setpointwill be calculated by the Reactor Protection System and will be directly proportional to the actual reactor coolant system flow with three pumps.
These limits are based on EC 19-0137 (C-ICE-058 .01 -008, Cycle 21) and are conservative relative to the actual Cycle 22 limits.
Davis-Besse Cycle 22 COLR Page 22 of 23 Revision 0 Table 8 Refueling Boron Concentration Limit for Davis-Besse, Cycle 22 This limit is referred to by Technical Specifications 3.9.1 The minimum required boron concentration for Mode 6 shall be sufficient to ensure a Kett of 0.95 or less, plus an additional 1% ~k/k conservatism allowance for uncertainties.
Davis-Besse Cycle 22 COLR Page 23 of 23 Revision 0 Figure 7 Control Rod Core Locations and Group Assignments for Davis-Besse, Cycle 22 This Figure is referred to by Technical Requirements Manual 8.1.3 N (X) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 I I I I I A
4 6 4 B 2 5 5 2 C 7 8 7 8 7 D 2 5 5 2 E 4 8 6 3 6 8 4 - F 5 1 1 5 - G (W) 6 7 3 4 3 7 6 - H (Y) 5 1 1 5 - K 4 8 6 3 6 8 4 - L 2 5 5 2 M 7 8 7 8 7 N 2 5 5 2 0 4 6 4 p R
0Group Number (Z)
Group No of Rods Function Group No of Rods Function 1 4 Safety 5 12 Control 2 8 Safety 6 8 Control 3 4 Safety 7 8 Control 4 9 Safety 8 8 APSRs Total 61