ML20198J644
| ML20198J644 | |
| Person / Time | |
|---|---|
| Site: | Prairie Island  |
| Issue date: | 12/17/1998 |
| From: | Bonneau C, Breene T, Weldenhammer K NORTHERN STATES POWER CO. |
| To: | |
| Shared Package | |
| ML20198J639 | List: |
| References | |
| NUDOCS 9812300231 | |
| Download: ML20198J644 (18) | |
Text
l 1
PRAIRIE ISLAND NUCLEAR GENERATING PLANT l
l CORE OPERATING LIMITS REPORT l
UNIT 2 - CYCLE 19 REVISION 0 i
t 1
Note: This report is not part of the Technical Specifications This report is referenced in the Technical Specifications l
l i
9812300231 981218 PDR ADOCK 05000282' P
PDR _
PRAIRIE ISLAND NUCLEAR GENERATING PLANT CORE OPERATING LIMITS REPORT UNIT 2-CYCLE 19 REVISION 0 This report provides the values of the limits for Unit 2 Cycle 19 as required by Technical Specification Section 6.7.A.6. These values have been established using NRC approved methodology and are established such that all applicable limits of the plant safety analysis are met.
Heat Flux Hot Channel Factor Limits F "" = 2.40 q
i K(z) values are provided in Figure 1.
V(z) values are provided in Figures 2a through 2d.
Reference Technical Specification sections: 3.10.B.1 and 3.10.B.2 i
Nuclear Enthalpy Rise Hot Channel Factor Limits Fm"" =1.77 l
l PFDH = 0.3 l
l If the nuclear enthalpy rise hot channel factor exceeds its limit in Technical Specification 3.10.B.1, reduce reactor power and the high neutron flux trip setpoint by 3.33% for each percent that the measured nuclear enthalpy rise hot channel factor exceeds the 3.10.B.1 limit.
Reference Technical Specification sections: 3.10.B.1,3.10.B.2, and 3.10.B.3 page 1 of 17
l t
Core Operating Limits Report -
Unit 2, Cycle 19 Revision 0 I'incar Heat Generation Rate The 95% probability level ECCS analysis calculation utilized a peak linear heat generation rate of14.788 kW/ft.
The Appendix K ECCS analysis calculation utilized a peak linear heat generation rate of 15.167 kW/ft for the F limit of 2.40.
o
. Reference Tecimical Specification section: 3.10.B Axial Flux Difference Limits The axial flux difference limits are provided in Figure 3.
The axial flux difference target band is *S%.
Reference Technical Specification sections: 3.10.B.4 through 3.10.B.9 Shutdown Rod Insertion Limits
. The shutdown rods shall be fully withdrawn.
Reference Technical Specification section: 3.10.D Control Rod Insertion Limits The control rod banks shall be limited in physical insertion as shown in Figures 4, 5, and 6.
Reference Technical Specification sections: 3.10.D and 3.10.G Reactor Coolant Flow Limit The reactor coolant system flow shall be 2178,000 gpm.
Reference Technical Specification section: 3.10.J page 2 of 17
}'
d L
Core Operating Limits Report l
Unit 2, Cycle 19 Revision 0 l
Penalty on F for Small Break LOCA - K(z) g The small and large break LOCA analyses performed for this cycle are valid for F s 2.80 and F f
n q
. s 2.40, respectively. The F limit for the large break LOCA analysis is more limiting than the F o
q limit for the small breax LOCA analysis. The small break LOCA analyss incorporates the K(z) l methodology. However, since the small break LOCA is less limiting than the large break LOCA, no K(z) penalty needs to be applied to calculations of most limiting F values.' Thus for j
o the equation in Technical Specification 3.10.B, K(z) is equal to 1. K(z) is shown graphically in Figure 1.
h l
Transient Power Distribution Penalty for F - V(z) g f
Table 1 summarizes the bounding V(z) values for the middle 80% of the core for Prairie Island unit 2, cycle 19. The V(z) penalty takes the form of straight lines connecting data points determined as a function of core height. A particular V(z) curve is valid over a given exposure range and equilibrium axial offset range as noted in Table 1. The V(z) penalty for each exposure and axial offset range is shown graphically in Figures 2a - 2d.
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Core Opercting Limits Report Unit 2, Cycle 19 Revision 0 Table 1 Bounding V(z) Values Exposure Range z(ft)
V(z) z(ft)
V(z) 0.0 - 1.878 GWd/MTU 0.20 1.000 6.30 1.077 Eq AO range:-3% to +8%
0.39 1.000 6.49 1.075 Operating band: iS% AI 0.59 1.000 6.69 1.073 (Startup) 0.79 1.000 6.89 1.069 0.98 1.000 7.08 1.064 1.18 1.106 7.28 1.060 1.38 1.103 7.48 1.063 1.57 1.101 7.67 1.066 1,77 1.098 7.87 1.069 1.97 1.096 8.07 1.072 2.16 1.093 8.26 1.075 2.36 1.091 8.46 1.078 2.56 1.088 8.66 1.081 2.75 1.086 8.85 1.084 2.95 1.083 9.05 1.087 3.15 1.083 9.25 1.089 3.34 1.083 9.44 1.092 3.54 1.083 9.64 1.095 3.74 1.083 9.84 1.098 3.93 1.083 10.03 1.101 4.13 1.083 10.23 1.104 4.33 1.083 10.43 1.107 4.52 1.083 10.62 1.110 4.72 1.083 10.82 1.113 4.92 1.083 11.02 1.000 5.11 1.083 11.21 1.000 5.31 1.083 11.41 1.000 5.51 1.083 11.61 1.000 5.70 1.083 11.80 1.000 5.90 1.081 12.00 1.000 6.10 1.079 page 4 of 17
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,..n-i Cora Operating Umits Report Unit 2, Cycia 19 Revision 0 i
Table 1 Bounding V(z) Values Exposure Range z(ft)
V(z) z(ft)
V(z) 0.0 - 5.878 GWd/MTU 0.20 1.000 6.30 1.081 Eq AO range: -6% to +6%
0.39 1.000 6.49 1.080 Operating band: 5% AI 0.59 1.000 6.69 1.079 O.79 1.000 6.89 1.078 0.98 1.000 7.08 1.079 l.18 1.110 7.28 1.081 1.38 1.107 7.48 1.082 1.57 1.104 7.67 1.084 1.77 1.101 7.87 1.085 1.97
. 1.098 8.07 1.087 2.16 1.095 8.26 1.088 2.36 1.092 8.46 1.090 2.56 1.091 8.66 1.091
]
2.75 1.090 8.85 1.093 2.95 1.089 9.05 1.094 3.15 1.087 9.25 1.096 3.34 1.086 9.44 1.097 3.54 1.085 9.64 1.099 3.74 1.085 9.84 1.100 3.93 1.085 10.03 1.102 4.13 1.085 10.23 1.105 4.33 1.085 10.43 1.108 4.52 1.085 10.62 1.110 4.72 1.085 10.82 1.113 4.92 1.085 11.02 1.000 5.11 1.085 11.21 1.000 5.31 1.085 11.41 1.000 5.51 1.085 11.61 1.000 5.70 1.085 11.80 1.000 5.90 1.084 12.00 1.000 i
6.10 1.083 l
page 5 of 17
7 Core Oper; ting Umits Report i
Unit 2, Cycb 19 Revision 0 Table 1 l
Bounding V(z) Values Exposure Range z(ft)
V(z) z(ft)
V(z) 0.0 - 14.378 GWd/MTU 0.20 1.000 6.30 1.104 Eq AO range:-6% to 44%
0.39 1.000 6.49 1.!O4 Operating band: iS% AI 0.59 1.000 6.69 1.104 0.79 1.000 6.89 1.104 0.98 1.000 7.08 1.104 f
1.18 1.115 7.28 1.104 1.38 1.113 7.48 1.103 1.57 1.111 7.67 1.101 1.77 1.109 7.87 1.100 1.97 1.107 8.07 1.099 2.16 1.105 8.26 1.097 2.36 1.102 8.46 1.096 2.56 1.099 8.66 1.098
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2.75 1.096 8.85 1.099 h
2.95 1.093 9.05 1.101 l
3.15 1.090 9.25 1.102 l
3.34 1.090 9.44 1.103 3.54 1.090 9.64 1.105 l
3.74 1.090 9.84 1.107 3.93 1.090 10.03 1.108 4.13 1.090 10.23 1.112 4.33 1.092 10.43 1.116 4.52 1.095 10.62 1.119 4.72 1.097 10.82 1.123 4.92 1.099 11.02 1.000 5.11 1.102 11.21 1.000 i
5.31 1.104 11.41 1.000 5.51 1.104 11.61 1.000 5.70 1.104 11.80 1.000 5.90 1.104 12.00 1.000 6.10 1.104 5
page 6 of 17 L
i Core Operating Limits Report I
- Unit 2 Cycle 19 l
' Revision 0 Table 1 i
Bounding V(z) Values Exposure Range z(ft)
V(z) z(ft)
V(z) i
- 0.0 GWd/MTU - EOC 0.20 1.000 6.30 1.122 Eq AO range:-6% to +4%
0.39 1.000 6.49 1.121 Operating band: iS% AI 0.59 1.000 6.69 1.120 0.79 1.000 6.89 1.119 0.98 1.000 7.08 1.118 1.18 1.122 7.28 1.117 1.38 1.119 7.48 1.116 1.57 1.117 7.67 1.113 1.77 1.115 7.87 1.110 1.97 1.112 8.07 1.107 2.16 1.110 8.26 1.104 2.36 1.107 8.46 1.101 2.56 1.104 8.66 1.098 2.75 1.102 8.85 1.100 2.95 1.100 9.05 1.101 3.15 1.097 9.25 1.103
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3.34 1.095 9.44 1.104 j
3.54 1.092 9.64 1.106 j
3.74 1.097 9.84 1.114 3.93 1.101 10.03 1.121 4.13 1.106 10.23 1.129 4.33 1.110 10.43 1.136 4.52 1.114 10.62 1.143 4.72 1.119 10.82 1.151 4.92 1.124 11.02 1.000 5.11 1.128 11.21 1.000 5.31 1.127 11.41 1.000 5.51 1.126 11.61 1.000 5.70 1.125 11.80 1.000 5.90 1.124 12.00 1.000 6.10 1.123 page 7 of 17 i
C8re Operating Limits Report Unit 2, Cycle 19 l
Revision 0 l
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page 8 of 17
Cora Operating Umits Report Unit 2, Cycl 219 Revision 0.
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Cora Oper; ting Limits Report Unit 2, Cycb 19
' Revision 0 1.17 1
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8
.a Cora Oper ting Limits Report Unit 2, Cycle 19 Revision 0 1.17
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Core Oper ting Limits Report Unit 2, Cycl 219 Revision 0 1.17
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page 12 of 17
Core Operating Limits Report Unit 2 Cycla 19 Revision 0 120
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- Core Opetting Limits Report ~
' Unit 2, Cycb 19
~ Revision 0 I
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C:ra Oper; ting Limits Report Unit 2, Cycle 19 Revision 0 0.0
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I
I Cora Oper: ting Limits Report Unit 2. Cycle 19 Revision 0 I
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page 16 of 17 L
l Core Operating Limits Report Unit 2, Cycle 19 Revision 0 Responsible
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Engineer:
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Senior Nuclear Engineer Nuclear Energy Engineering Reviewed by:
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Date Superintendent, Nuclear Engineering Prairie Island Reviewed by:
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Senior Engineer Nuclear Energy Engineering Approved by:
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page 17 of 17