ML20140H150
| ML20140H150 | |
| Person / Time | |
|---|---|
| Site: | Braidwood  |
| Issue date: | 04/22/1997 |
| From: | Gurley J, Redden D, Thomasen J COMMONWEALTH EDISON CO. |
| To: | |
| Shared Package | |
| ML20140H139 | List: |
| References | |
| NDIT-960028, NDIT-960028-R01, NDIT-960028-R1, NUDOCS 9705120351 | |
| Download: ML20140H150 (9) | |
Text
{{#Wiki_filter:__ . _ _ - _ _. _ .. _ . _ . _ _ . - . . _ _ . __,__m_ __ t NUCLEAR FUELSERVICES DEPARTMENT NUCIIAR DESIGN INFORMATION 11tANSMTITAL Originating Organization NDTT No. 960028 S SAFETY RELATED , E NuclearFuelServices Rev. No. I O NON. SAFETY RELATED 0 Other(specify) Page 1 of 9 O REGULATORY RELATED I Station Hraidwood Unit 2 Cycle 6 _ Generic i To: James R. Meister, Braidwood Site Engineering Manager Subiect Braidwood Unit 2 Cycle 6 Operatine LJmits Report
-r,ev Preparer
- s. A /
Pwimrer's Signature al2,1n Dite '/ J Nmsen ___r' Reuewer si Date j D Redden p' NFS Supemsor 1@S Supervisor's Signatuie Date i Status of informanon: E Venfied O Unvenfied O EngmeeringJudgement , Meinod and Schedule of Venfication for Unverified i NDi f- l Dewnptmn ut Information: Attached is the Braidwood Umt 2. Cycle 6 Operaung 12mits Report (OLR). Purnv of informanon:This Revision e ua A Revtston 0. Reymon I incorporates changes due to Techmcal Specificanon Amendment ' 78 tirmd anod Stauon is requested to perform an On-Site ReYiew (OSR) of this document. Upon completion of the OSR. Braidwood Station is to irr.n mii the OLR porton to the Nuclear Regulatory Commission pursuant to Technical Specificauon 6.9.1.9. Please provide NFS (Jeff Guna i w iih a copy of Braidwood Station's completed OSR ad OLR submittal to the NRC. ; Source or informauon: PWR Nuclear Design. Suppemental Distnbunon: M. Lesmak L Kepicy / O. Gosbec/D. Lawson P. Boyle E. Young /M. Kim H. S. Kim/J. Dunlap Braidwood Central File l 9705120351 970501 PDR ADOCK 05000456 P PDR
NDIT 960028 Rev.1
- Page 2 of 9 4 OPERATING LIMITS REPORT (OLR) for BRAIDWOOD UNIT 2 CYCLE 6 i
l 1.0 OPERATING LIMITS REPORT I This Operating Limits Report (OLR) for Braidwood Station Unit 2 Cycle 6 has been prepared in accordance with the requirements of Technical Specification 6.9.1.9. The Technical Specifications affected by this report are listed below: 3/4.1.1.3 Moderator Temperature Coefficient 3/4.1.3.5 Shutdown Rod Insertion Limit i 3/4.1.3.6 Control Rod Insertion Limits 3/4.2.1 Axial Flux Difference 3/4.2.2 Heat Flux Hot Channel Factor 3/4.2.3 Nuclear Enthalpy Rise Hot Channel Factor 2.0 OPERATING LIMITS The cycle-specific parameter limits for the specifications listed in Section 1.0 are presented in the following subsections. These limits have been developed using the NRC approved methodologies specified in Technical Specification 6.9.1.9. 2.1 Moderator Temoerature Coefficient (Specification 3/4.1.1.3) I 2.1.1 The Moderator Temperature Coefficient (MTC) limits are:
- a. The BOL/ARO/HZP-MTC baall be less positive than +4.0 x 10 Ak/k/ F.
- b. The EOUARO/RTP-MTC shall be less negative than -4.1 x 10" Ak/kFF.
2.1.2 The EOUARO/RTP-MTC Surveillance limit is: d The 300 ppm /ARO/RTP-MTC should be less negative than or equal to -3.2 x 10 Ak/krF. where: BOL stands for Beginning of Cycle Life ARO stands for All Rods Out HZP stands for Hot Zero Thermal Power EOL stands for End of Cycle Life RTP stands for RATED THERMAL POWER
. . - - . - - - - . - . _ _ - - _ _ . . . . _ _ - . . . . . . -~ . - _ .
.' NDIT 960028 Rev.1
. . Page 3 of 9 OPERATING LIMITS REPORT (OLR) for BRAIDWOOD UNIT 2 CYCLE 6 j i
l 2.2 Shutdown Rod insertion Limit (Specification 3/4.1.3.5) 2.2.1 All shutdown banks shall be withdrawn to at least 231 steps. 2.3 Control Rod Insertion Limits (Specification 3/4.1.3.6) ; i 2.3.1 The control banks shall be limited in physicalinsertion as shown in Figure 1. 2.4 Axial Flux Difference (Specification 3/4.2.1) ! 2.4.1 The AXIAL FLUX DIFFERENCE (AFD) target band is +3,-12% of the target flux l difference. 1 2.4.2 The AFD Acceptable Operation Limits are provided in Figure 2. ! 2.5 Heat Flux Hot Channel Factor (Specification 3/4.2.2) l 1 2.5.1 Fo(Z) s(FEP/P)[K(Z)) for P > 0.5 i Fo(Z) s (Fo /0.5][K(Z)] for P s 0.5 l where: P = the ratio of THERMAL POWER to RATED THERMAL POWER FE" = 2.50 K(Z) is provided in Figure 3. I 2.5.2 F'y
, = F"[(1 + 0.2(1 - P)] j F"[ limits within specified core planes shall be:
- a. For the lower core region from greater than or equal to 0% to less than or equal to 50%:
- 1) F"[ s 2.803 for all core planes containing bank "D" control rods j
- 2) F7P s 1.729 for all unrodded Core planes
- b. For the upper core region from greater than 50% to less than or equal to 100%:
- 1) F"[ s 2.103 for all core planes containing bank "D" control rods
- 2) F@" 51.810 for all unrodded core planes 2.5.3 A plot of (Fo(z)
- Pu] vs Axial Core Height is provided in Figure 4 and Table 1 contains the data plotted in Figure 4.
__. ._ ..._.m._ _ _ _ _ _ . _ . . _. ._ _ . . _ _ _ . . . - _ _ . _ _ . _ _ _ - NDIT 960028 Rev.1
*
- Page 4 of 9 OPERATING LIMITS REPORT (OLR) for BRAIDWOOD UNIT 2 CYCLE 6 2.6 Nuclear Enthalov Rise Hot Channel Factor (Specification 3/4.2.3)
F5 s F"d[1.0 + PFm(1.0 - P)] where: P = the ratio of THERMAL POWER to RATED THERMAL POWER F8 = 1.65 PF, = 0.3
. . bbow 960028 ~1 ~
Rev.1 . Page 5 of 9 l OPERATINO LIMITS REPORT (OIR) for BRAIDWOOD UNIT 2 CYCLE 6 1 Figure 1- l Control Bank Insertion Limits Versus Percent Rated Thermal Power (29%,228) ' (79 %,228)
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2@ l 180 I (100%,161) 160 (0%,162) j i 140 , , e I g 120 / l BANK C l / b
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0 - 0 10 20 30 40 50 60 70 80 90 100 Re!ative Power (Percent) j
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Rev.I 1 Pay 6 of 9
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OPERATING LIMITS REPORT (OLR) for BRAIDWOOD UNIT 2 CYCLE 6 1- l a i FIGURE 2: Axial Flux Difference Limits As A Function of Rated Thermal Power i i 4
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.Rev.I l!
. Page 9 of 9 'l 4
OPERATING LIMITS REPORT (OLR) for BRAIDWOOD UNIT 2 CYCLE 6 Table 1: [Fdz)
- Pu] vs. Axial Co.e Height Fq SPIL Core Height Max Fq x P UMIT
- J ..
i ,f y 1.8778 2.4999 2.5000
- 2.1282 2.2956 2.5000 2.3786 2.3666 2.5000
- 2.6289 2.3276 2.5000
- 2.8793 2.3561 2.5000 , 2.5000 l ' 3.1297 2.3792 3.3801 2.3948 2.5000 3.6305 2.4087 2.5000 3.8808 2.2272 2.5000 4.1312 2.4099 2.5000 i
- 4.3816 2.4126 2.5000 4.6320 2.4044 2.5000 4.8823 2.3915 2.5000 l
l 5.1327 2.3743 2.5000 5.3831 2.3905 2.5000 5.6335 2.2404 2.f000 l 5.8838 2.4268 2.5000 6.1342 2.4648 2.4957 , 2.4878 2.4878 l 6.3846 6.6350 2.4582 2.4799 l l 2.4457 2.4720 1 6.8853 2.4196 2.4640 l - 7.1357 7.3861 2.3648 2.4561 2 7.6365 2.4273 2.4482 7.8868 2.4195 2.4402 8.1372 2.4039 2.4323
' 8.3876 2.3792 2.4244 8.6380 2.3479 2.4165 8.8883 2.3011 2.4085 9.1387 2.2127 2.4006 9.3891 2.3076 2.3927 i 2.3847
! 9.6395 2.3110 i 9.8899 2.3407 2.3768 10.1400 2.3681 2.3689 i t..u: A k ?.y f b -
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5s[d 2 d $2 ~ Unshaded area shows surveillance region. Shaded area (top and bouom 15%)is ignored. i
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