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| number = ML18232A172
| number = ML18232A172
| issue date = 08/20/2018
| issue date = 08/20/2018
| title = Unit 1 Revision 1 of the Cycle 15 Core Operating Limits Report (Colr) and Unit 2 Revision 1 of the Cycle 2 Core Operating Limits Report (Colr)
| title = Unit 1 Revision 1 of the Cycle 15 Core Operating Limits Report (COLR) and Unit 2 Revision 1 of the Cycle 2 Core Operating Limits Report (COLR)
| author name = Simmons P
| author name = Simmons P
| author affiliation = Tennessee Valley Authority
| author affiliation = Tennessee Valley Authority
Line 15: Line 15:


=Text=
=Text=
{{#Wiki_filter:TennesSeeValleyAuthority,PostofficeBox2000,Sprin August 20,2018 10 cFR 50.4 ATTN: Document Control Desk U. S. Nuclear Regulatory Commission Washington, D.C. 20555-0001
{{#Wiki_filter:TennesSeeValleyAuthority,PostofficeBox2000,Sprin August 20,2018 10 cFR 50.4 ATTN: Document Control Desk U. S. Nuclear Regulatory Commission Washington, D.C. 20555-0001 Watts Bar Nuclear Plant, Units 1 and2 Facility Operating License Nos. NPF-90 and NPF-96 NRC Docket Nos. 50-390 and 50-391


==Subject:==
==Subject:==
Watts Bar Nuclear Plant, Units 1 and2 Facility Operating License Nos. NPF-90 and NPF-96 NRC Docket Nos. 50-390 and 50-391 UNIT 1 REVISION 1 OF THE CYCLE 15 CORE OPERATING LIMITS REPORT (COLR) and UNIT 2 REVISION I OF THE CYCLE 2 CORE OPERATING LTMTTS REPORT (COLR)Pursuant to Watts Bar Nuclear Plant Technical Specifications (Tech Spec) Section 5.9.5.d, Tennessee Valley Authority (TVA) has enclosed Revision 1 of the Unit 1 Cycle 15 COLR and Revision 1 of the Unit 2 Cycle 2 COLR. This revision added shutdown margin limits for Tech Spec 3.1.5, 3.1.6, and 3.1.7 per a NRC Commitment.
UNIT 1 REVISION 1 OF THE CYCLE 15 CORE OPERATING LIMITS REPORT (COLR) and UNIT 2 REVISION I OF THE CYCLE 2 CORE OPERATING LTMTTS REPORT (COLR)
The analytical methods used to determine the core operating limits were previously reviewed and approved by the NRC.There are no regulatory commitments contained in this letter or the enclosure.
Pursuant to Watts Bar Nuclear Plant Technical Specifications (Tech Spec) Section 5.9.5.d, Tennessee Valley Authority (TVA) has enclosed Revision 1 of the Unit 1 Cycle 15 COLR and Revision 1 of the Unit 2 Cycle 2 COLR. This revision added shutdown margin limits for Tech Spec 3.1.5, 3.1.6, and 3.1.7 per a NRC Commitment. The analytical methods used to determine the core operating limits were previously reviewed and approved by the NRC.
Should you have questions regarding this submittal, please contact Kim Hulvey at (423) 365-7720.Respectfully, Paul Simmons Site Vice President Watts Bar Nuclear Plant U.S. Regulatory Commission Page2 August 20,2018  
There are no regulatory commitments contained in this letter or the enclosure. Should you have questions regarding this submittal, please contact Kim Hulvey at (423) 365-7720.
Respectfully, Paul Simmons Site Vice President Watts Bar Nuclear Plant
 
U.S. Regulatory Commission Page2 August 20,2018


==Enclosures:==
==Enclosures:==
Watts Bar Nuclear Plant, Unit    1, Cycle 15 Core Operating Limits Report, Revision 1, January 2018 Watts Bar Nuclear Plant, Unit 2, Cycle 2 Core Operating Limits Report, Revision 1, January 2018 cc (Enclosure):
NRC Regional Administrator - Region ll NRR Project Manager NRC Senior Resident lnspector
ENCLOSURE    1 Watts Bar Nuclear Plant, Unit 1, Cycle 15 Core Operating Limits Report Revision 1 January 2018
OARcord 130 tEolt8 800 WATTg BAR I{UCLEAR PIANT, UNIT I. CYCTE 15 CORE OPERATIiIO LIMITS REPORT Rolslon 1 January 2m8 Unnc Veillled by:
A. Rlbh6, nllln Fuol Englnorlrrg gf-3r1lpcr]!!C conrrnnminr i isr eozao lL 171ltE 00lt^ Renrih*ra G! a-*rdr Unil I WATTS BAR                                                                        Clcle tS Pags I of l0                          Rcvlsion I
1.0    CORE OPERATING LIMITS REPORT This Core Operating Limits Report (COLR) for Watts Bar Unit I Cycle 15 has been prepared in accordance with the requirements of the Technical specification (TS) 5.9.5.
The Technical Specifications affected by this report are listed below:
3.1.4 Moderator Temperature Coefficient (MTC) 3.1.5 Rod Group Alignment Limits 3.1.6 Shutdown Bank lnsertion Limits 3.1.7 Control Bank Insertion Limits 3.2.1 Heat Flux Hot Channel Factor (Fq(Z))
3.2.2 Nuclear Enthalpy Rise Hot Channel Factor (F**)
3.2.3 Axial Flux Difference (AFD) 3.9.1 BoronConcentration 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 the Technical Specifications Section 5.9.5.
The following abbreviations are used in this section:
BOL            Beginning of Cycte Life ARO            All Rods Out HZP            Hot Zero Thermal Power EOL            End of Cycle Life RTP            Rated Thermal Power Unit I                                                                                    Cycle l5 WATTS BAR                                Page 2  of l0                                  Revision I


Watts Bar Nuclear Plant, Unit 1, Cycle 15 Core Operating Limits Report, Revision 1, January 2018 Watts Bar Nuclear Plant, Unit 2, Cycle 2 Core Operating Limits Report, Revision 1, January 2018 cc (Enclosure):
2.1   MODERATOR TEMPERATURE COEFFICTENT - MTC (LCO 3.1.4)
NRC Regional Administrator - Region ll NRR Project Manager NRC Senior Resident lnspector ENCLOSURE 1 Watts Bar Nuclear Plant, Unit 1, Cycle 15 Core Operating Limits Report Revision 1 January 2018 Unil I WATTS BAR OAR*cord 130 tEolt8 800 WATTg BAR I{UCLEAR PIANT, UNIT I. CYCTE 15 CORE OPERATIiIO LIMITS REPORT Rolslon 1 January 2m8 Clcle tS Rcvlsion I Unnc Veillled by: A. Rlbh6, nllln Fuol Engln*orlrrg gf-3r1lpcr]!!C conrrnnminr i isr eozao lL 171ltE 00lt^ Renrih*ra G! a-*rdr Pags I of l0 1.0 CORE OPERATING LIMITS REPORT This Core Operating Limits Report (COLR) for Watts Bar Unit I Cycle 15 has been prepared in accordance with the requirements of the Technical specification (TS) 5.9.5.The Technical Specifications affected by this report are listed below: 3.1.4 Moderator Temperature Coefficient (MTC)3.1.5 Rod Group Alignment Limits 3.1.6 Shutdown Bank lnsertion Limits 3.1.7 Control Bank Insertion Limits 3.2.1 Heat Flux Hot Channel Factor (Fq(Z))3.2.2 Nuclear Enthalpy Rise Hot Channel Factor (F**)3.2.3 Axial Flux Difference (AFD)3.9.1 BoronConcentration
: 2. l.l The MTC limits are:
The ARO/HZP - MTC shall be less positive than or equal to 0 Ak/lJ'F (upper limit).
With the measured BOL/ARO/HZP - MTC more positive than -1.30 x lo-s Ak/ldoF (as-measured MTC limiO, establish control rod withdrawal limits to ensure the MTC remains less positive than or equal to 0 Ak/ld"F (upper limit) for all times in core life.
The EOL/AROiRTP - MTC shall be less negative than or equal to 4.5 x lOa Aldk/.F (lower limit).
2.1.2 The 300 ppm surveillance limit is:
The measured 300 ppm /ARO/RTP-MTC should be less negative than or equal to
                    -3.75 x l0-4 ak/ld"F.
2.1.3 The 60 ppm surveillance limit is:
The measured 60 ppm /ARO/RTP-MTC should be less negative than or equal to 4.2g x 104 al/ld.F.
2.2    SHUTDOWN MARGIN                - SDM (LCO 3.1.5,3.1.6,3.1.7) 2.2.1 For TS 3.1.5, SDM shall be Z 1.6% Aklk in MODE I and MODE 2" 2.2.2 For TS 3.1.6, SDM shall be 2 1.6% Aklk in MODE I and MODE 2.
2.2.3 For TS    3 .L .7 , SDM shall be > I .6% Al/k in MODE I and MODE 2 with h*r > 1,0.
2.3    SHUTDOWIY BAIYK IIYSERTION LIMITS (LCO 3.1.6) 2 .3 . I The shutdown banks shall be withdrawn to a position greater than or equal to 225 steps withdrawn.
2.4    CONTROL BAIIK TNSERTTON LTMTTS (LCO 3.1.7) 2.4.1 The control banks are fully withdrawn or shall be limited in physical insertion      as shown in Figure l.
2.4.2 Each control bank shall be considered frrlly withdrawn from the core at greater than or equal to 225 steps.
2.4.3 The control banks shall be operated in sequence by withdrawal of Bank A, Bank B, Bank C, and Bank D. The control banks shall be sequenced in reverse order upon insertion.
Unit I                                                                                      Cycle l5 WATTS BAR                                  Page 3 of l0                                Revision I
 
2.4.4Eachcontrol bank not fully withdrawn from the core shall be operated with the following overlap as a function of park position.
Park Position  (steps)          Bank overlap    (steps)        Bank Difference (steps) 225                                109                            116 226                                ll0                            lt6 227                                ill                            il6 228                                rr2                            116 229                                ll3                            116 230                                l 14                          n6 23t                                lt5                            116 2.5    HEAT FLUX HOT CHANNEL FACTOR- Fq(Z) (LCO 3.2.1)
Fq(Z) < [CFQ I  Pl*  K(Z)      for P > 0.5 Fq(Z)< ICFQ l0.s]
* K(Z)     forP<0.5 Where P    =  Thermal Power / Rated Thermal Power 2.5.1 CFQ =2.50 2.5.2 K(Z) is provided in Figure 2.
z.ss rr*127= Fo'(Z)
* w(z)tP for P > 0.5 Fq*(Z) = Fq"(Z)
* W(2y0.5 for P < 0.5 where: w(Z) values are provided in Table A.l. The table provides suffrcient information to determine w(Z) versus core height for all cycle burnups.
2.5.4Part power W(Z) values are only required to be used when the part power surveillance is performed using the moveable incore detector system.
2.5.5 Faw(Z) Penalty Factor the FqwlZ; penalty factor is provided in Table A.2.
Unit I                                                                                Cycle 15 WATTS BAR                                Page 4  of l0                              Revision I


===2.0 OPERATING===
2.6  NUCLEAR ENTIIALPY RISE HOT CHANI\EL F'ACTOR                    -  F'&{N (LCO 3.2,2)
F** S F*** * ( I + pF * ( l-p))
where P = Thermal Power / Rated Thermal power For* :    1.65 forRFA-2 fuel, and PF      = 0.3 2.7  AXrAL FLIX DTFFERENCE - AFD (LCO 3.2.3) 2.7.1 The AFD limits for Cycle    15 are provided in Figure 3.
2.8    REFUELTNG BORON CONCENTRATTON (LCO 3.e.1) 2.8.1 The refueling boron concentration shall be > 2000 ppm.
3.0    NUMBER OF TPBARS rN REACTOR CORE (TS 4.2.1) 3.0.1 There are I 104 tritium producing burnable absorber rods (TPBARs) in the reactor core for Cycle 15.
Unit I                                                                              Cycle 15 WATTS BAR                              Page 5 of l0                                Revision I


LIMITS The cycle-specific parameter limits for the specifications listed in section 1.0 are presented in the following subsections.
250 (ALL POWERS, 2251 225 (a.Lg7, 225l,                          (0.703, 225l, 200 BANK B z
These limits have been developed using the NRC approved methodologies specified in the Technical Specifications Section 5.9.5.The following abbreviations are used in this section: BOL Beginning of Cycte Life ARO All Rods Out HZP Hot Zero Thermal Power EOL End of Cycle Life RTP Rated Thermal Power Unit I WATTS BAR Cycle l5 Revision I Page 2 of l0  
3 t75      (0.0, 190) a I
E 150 l=n o,
UI F                                      BANK C 9
z o    L25
        -a F
o A
E UJ F    100 ttl Y
z o
o    75 o
G, (0.0,  64l, (0.227, 0) o,4            0.6 FRACTION OF RATED THERMAL POWER Figure I Control Bank Insertion Limits Versus Thermal power Four Loop Operation Note: Fully withdrawn region shall be the condition where shutdown and control banks are at a position within the interval of >_225 and323l steps withdrawn.
Unit I                                                                               Cycle l5 WATTS BAR                                 Page 6  of l0                           Revision I


===2.1 MODERATOR===
1.2 1.1 1.0
                                                            -,      E-L--
                                                                                    -    r 0.9 0.8 t-(1) o=   o.7 o_
o LL                                                    i co.. Heioht    K(7\
0.6
        'r()
o                                                  I-1  o ooo      1.ooo
        .N                                                        6.000      1.000 i 12.000        0.92s6 i
(u                                                                            i E    0.5 L
o z.
o,4 0.3 o-2 0.1 o
o                    468                                10          12 Core Height (feet)
Figure  2 K(Z) - Normalizetl Fq(Z)  as a Function of Core Height Unit I                                                                              Cycle 15 WATTS BAR                            Page 7 of l0                                Revision I


TEMPERATURE COEFFICTENT - MTC (LCO 3.1.4)2. l.l The MTC limits are: The ARO/HZP - MTC shall be less positive than or equal to 0 Ak/lJ'F (upper limit).With the measured BOL/ARO/HZP - MTC more positive than -1.30 x lo-s Ak/ldoF (as-measured MTC limiO, establish control rod withdrawal limits to ensure the MTC remains less positive than or equal to 0 Ak/ld"F (upper limit) for all times in core life.The EOL/AROiRTP - MTC shall be less negative than or equal to 4.5 x lOa Aldk/.F (lower limit).2.1.2 The 300 ppm surveillance limit is: The measured 300 ppm /ARO/RTP-MTC should be less negative than or equal to-3.75 x l0-4 ak/ld"F.2.1.3 The 60 ppm surveillance limit is: The measured 60 ppm /ARO/RTP-MTC should be less negative than or equal to 4.2g x 104 al/ld.F.2.2 SHUTDOWN MARGIN - SDM (LCO 3.1.5,3.1.6,3.1.7) 2.2.1 For TS 3.1.5, SDM shall be Z 1.6% Aklk in MODE I and MODE 2" 2.2.2 For TS 3.1.6, SDM shall be 2 1.6% Aklk in MODE I and MODE 2.2.2.3 For TS 3 .L .7 , SDM shall be > I .6% Al/k in MODE I and MODE 2 with h*r > 1,0.2.3 SHUTDOWIY BAIYK IIYSERTION LIMITS (LCO 3.1.6)2 .3 . I The shutdown banks shall be withdrawn to a position greater than or equal to 225 steps withdrawn.
120 110
(-12, 1 00)         (7,  10 0) 100 90                                Acceptable Operation 80    Unaccepta                                                      tacceptal I                                \
o-o o
        =
Operatio r-l                                      \
Coeratior (tr 70 I                                      \
I E
lb o
                                                                            \
F Eo 60 I                                            I E
(I, l{-
o 50                I                                                \
s                                                                  ter 40 30 20 10 0
                -50 40    -30    -20      -10      0          10          20  30      40    50 Flux Difference  (A l) %
Figure 3 Axial Flux Difference Acceptable Operation Limits as a function of Rated Thermal Power (RAOC)
Unit I                                                                                 Cycle l5 WATTS BAR                              Page 8  of l0                                  Revision 1


===2.4 CONTROL===
Table A.l RAOC W(Z) Surveillance Factors IIax \\'(z)      \Iax \\'(z)        \Iar \\I(z)      \Ias      \Y(z)    Nlax \\'(z)        Ilax      11I(z)  NIax \Y(z)      Ilax      \1'(z)  \Iax \\I(z) at 150            at      150        at 150        at 2000            at 4000            at 8000          at 12000        at 16000          at 18000 Height
BAIIK TNSERTTON LTMTTS (LCO 3.1.7)2.4.1 The control banks are fully withdrawn or shall be limited in physical insertion as shown in Figure l.2.4.2 Each control bank shall be considered frrlly withdrawn from the core at greater than or equal to 225 steps.2.4.3 The control banks shall be operated in sequence by withdrawal of Bank A, Bank B, Bank C, and Bank D. The control banks shall be sequenced in reverse order upon insertion.
( ft)
Unit I WATTS BAR Cycle l5 Revision I Page 3 of l0 2.4.4Eachcontrol bank not fully withdrawn from the core shall be operated with the following overlap as a function of park position.Park Position (steps) Bank overlap (steps) Bank Difference (steps)225 109 116 226 ll0 lt6 227 ill il6 228 rr2 116 229 ll3 116 230 l 14 n6 23t lt5 116 2.5 HEAT FLUX HOT CHANNEL FACTOR- Fq(Z) (LCO 3.2.1)Fq(Z) < [CFQ I Pl* K(Z) for P > 0.5 Fq(Z)< ICFQ l0.s]
            }I\ITDAITT'      \I\\'DAITIT        \I\\'DAITTT      \,I\\'DI}TTI.I        }T\\DAITT"        NI\\lDAITT'        NI\\'Dr\ITLr    }t\\.DAITTT        Nt\\.DI}TTTI (30%              (7s%            (1009'0          (lo0%                (r00%              (100%            (100%            (100%            (r00%
* K(Z) forP<0.5 Unit I WATTS BAR Where P = Thermal Power / Rated Thermal Power 2.5.1 CFQ =2.50 2.5.2 K(Z) is provided in Figure 2.z.ss rr*127= Fo'(Z)
Porver)          Porver)            Polver)          Polyer')            Power)            Power)            Power)            Pow,er)          Pon'er) 07.1      t.i)000          I    0000          1.0000          1.0000              1.0000              1  0000          L0000            1 0000            I 0000 I  8713      I  000r)        1.0.000            L0000            I  0000            1.0000              I  00{)0          I.0000          1.0000            I 0t)00 1 6720        I  0000        I 00r)0            I 0000          1.0000              1  000t)          t  000r)          1.0000          1.0000            I "0000 L-1r08        L0000            1.0000              I 0000          t  0000            L000(l            1.0000            1.0()0r)        1.0000            I.0000 1.169          I 0000          1.0000              i  0000          1 0000              1  0000            I  0000          I t)000          1  0000          1 0000 1.068-1        1.0000            r 0000            1.0000          1.0000              1.000t)            i  0000          I 0000            I  0000          1  0000 0 8671          1.3719            I 356.1            1.2i6            t.l5-t    1          I 2t86            t.1040            I    924        I    75-l        I    7-r6 0 66-i8        l  -1(106      t 33.tl            I2t-14          I  2;i.99          l.l l7q            LlOl      _1    i    917        I    7t4              65.1 0.+646          I -l-[7                 115          I 2081          l  2417            l.l t4f)                 96t        I    877        I    708          t      98 0.16-l-1        l.-1201          r ?9-t5            l  2tl07        1237.x              1 1094                  891        I    I l_l      I    619              5.17 fi 06l t        t.30ll          t l69q                  94-1        l .l_1 17            I  10_16          I    .S l6      I      11      I    561              48_1 e 8608          l.l87e          1    l-169        I    9ll        I .21-l7            I    9,s                ?10        I    705        I    517        I    47-l 9.6-i9(r        t.l7            I          7      I    9l          l :180              I    876          I    6.{        I    6l        I    509                58 e.-158-l                  5      I      l9r  t      I    89-5        l.l I CrS          I    s67          I    6          I    s6      I    590          I    fi60 9  l57l        t 116l          I      1777        I    9-l        t tIle              I    87Cr          I    6,59        I 57i            I    6,17        I          I 9.055e          I.t 186          I      I 667        I    970        I t08l              I    B7            I    6-5-t      I    585        I    66.1        I    785 8 85.ltr        I . 19.t7        I      I _s37      I    960        I  1998            I    846          I    659        I    59r        I    j17        I    8_r0 8.651"1          r.17t.1         I    i43e        I    95.+        I  le-16          t    8l-l         i    704        I      644        I    8lr        I    881 8,45t1          1.1579            L 1.136            1 2020            I . l9.q_l                878          I    771        I      74e        I    949        I 205 8 :509          t.141_l          i . 1.151          1.2083            1.202-s                  89.q          I    810        I      868        I 208            I  2207 8.0-197        I r17    t      I    l4-\0        L2    r 2-5      l :041                    8e8          I    8+l        I      9fr9      I tt04            l.l-l-1 7.8484          L 1095            I    14.15        I lt4e          1 2046              I    871                857        1.1046            t 2297            1.24,16 7,6+72          1.0916            I  . l'1-ll      I    1-s3      I 20-rl              I    8.r8                850        l.: 102          l.ti66            1.2514 7.-+459        1.0795          l t4ll              I .2138          1.1001              I    866                815        t.: I_15          l.l4 t0          1 1565 7.14-17        1.0666          I      i -t8-s      I    106        I      9-s-l        I    869          I      776        I II47            l.t4l0            i.2591 7 043          1.0561          I lll9              L20-52          I      894          I    84e          I      756        I      137        I    42fi        1,259 r 6 8411          I.0-t97          I      I lt)r{      1.2009          I      848          I    817          I      751        I   2108          I.tt99            1.2567 6.6-+  l0     l.ru7l          L l-105            I    99t)        I      817          I    77          I      7tl        r  t06_3        l 2r5l            l.2,sl0 6 "1i97        L0.1-+4         L      llS          I    949                166          I    7ll          I    691        1.2003            l.lle0            l.?4,s6 61,18          L0"l))           L 1t58              I    89,3        l. 696                    (}+l        I    6.10              9t5        1 2207            l.l37l 6.0173          1.0_196          l      l]19        I    816              6l-t          I    587          I        8I      I      83        I 2105            I 2164 8-160        I    0388        l. I 190            I    74tl              578 1
* w(z)tP for P > 0.5 Fq*(Z) = Fq"(Z)
                                                                                                      -1        I    _il9        I      7t8            982          L21-17 6.1"18      1    0400        II        75      t. 684          I      520          1.    -t66          I    Jt9-t      I    601              846          I    99 5 .$t-5        I,0417          I    I l6l        I    6-13        I    4?4          I    431          I    469        I      5_3.1          719              847 5 trls        1.045_l          t    ll-58        I    5      I    446                .ll8                4.19        I      515      I    6t9              749 5.t)-t  l0      L0-s07                I  l7l      I    56.{      I      4,r I        I r11
* W(2y0.5 for P < 0.5 where: w(Z) values are provided in Table A.l. The table provides suffrcient information to determine w(Z) versus core height for all cycle burnups.2.5.4Part power W(Z) values are only required to be used when the part power surveillance is performed using the moveable incore detector system.2.5.5 Faw(Z) Penalty Factor the FqwlZ; penalty factor is provided in Table A.2.Cycle 15 Revision I Page 4 of l0
                                                                                                  +_1    ',
4-56        I      5t0      I    612              72{)
-1  8198        I "057_1        I      I t89            515        I      418          I    .115                476        I    504        I    610        I    71-t 4 6186          1.06-j8          l    ttge        I    50t)       I      399          I    .l3l        I      .+8        I    500        I    594        I    688 4".t]73          I.070:          I    Il0-l        I    -15e      I      37-1          I    +10          I    -189        I    488        I        7l      I    6_s4 4:t6l            t.0766          I    I t99        I    4ll              ,14          I    40-1        I      48          t. 470          I    -54.1      I     6ll 4.01.t8          t.0818          Lll93              I    -j60      I      -106          I      l8-l        I      481        I    "159      I    5ll        I    -5(r3 8ll6        l.t)88tr        l. I I77            I    .l0t)            168          I      154        I      468        I    461        I    468        I    504
-1  62t,l        1.0951          tl          70      I    247        I        ?7                ils        I      461        I    507              4_17        I    4-56 l4llt          t    1060      I l20i              I    2-l,l              184                _i4!)       I      496        I    56.r      I    449        I    448 l lt9e        LIl9l            I      l2-58        I    241                te3                38-5         I      550        I      620              469        I    454 1.0186          L l3e5          I tiE              I    12l        I      t8l          l.    ,+75        I      6-17      I      685              521        I    504 8174        l. I69e          t. I 5e9            I    497        I      -lfr9        I    6-11        I      795        I      802        I     65_l              6_16 2,616t          LtOr 7          1. 1 836            l. 683          I      669          I    85-l        I  .t0l    l    I      !)71      I    8.1-l      t    828 1.il.19        l.t-l4l          t    2067          t    870        I      873          I t060              I    2220        I 2128            L202-l            L2008 l lI-17        I.:67-s          1.2-108            L2057            t 207'v            1.226{              1.2.l]4          I .1281          I Ile8            LI t84 I0ll4          l.l02l          1.2547              1.224t)          t.2271              I 146l              l.t6t2            I.:427          I 2367            I.2-l-54 t,8l t        I  "
jj79        1.2781              t,2-+17          I 1469              l l6+e              t.ts09            1.256-l          l.t-518            l  2-5l6 I 6099        I    _174        I    100.1          1 1.58          I      650          I "281-1            Ll98 l            t t6e2          L?677              1.1666 L.t08r          l.4l t0          I.3110              t.27?6          I  1808            I 2e74              1 3130            I      816      I 2805            I.2795 1.1075        1.446(r          i.-3-18-j          I 18-1,1        1  2913            I      087          l.-i239          I.2904          I      894        1.288s I  00Cr        1.0000          1.0000              1 000t1          l.000rl            I    0000          l.t)000          l,0000          I    00fx)         L0000 0.8050          Lt1000          l.00fi0            1.0000          I  000n            L0000              1.0000            r.0000          t    0000          L0000 0.(r0i7        1.0000          1.0(J00            1.0000          1 0000              1.0000              1.0000            r.0000          I    0000          1.0000 0 4015          i "0000          1.0000              l.00fit)         I 0000              I    0000          1.0000            I.0000          t.0000            L0000 0.20r 1        I.0000          L00t)0              1.0000          1.0000              1 0000              L0000            r.0000          1.0000            t.0000 0.0000          I    t)000      l.0rl00            I  0000        I 0000              I    0000          I.0000            1.0000          1 0000            L0000 Unit I                                                                                                                                                  Cycle l5 WATTS BAR                                                          Page 9            of 10                                                      Revision I


===2.6 NUCLEAR===
Table A.2 Fq*(Z) Penalty Factor Fq*(z)
ENTIIALPY RISE HOT CHANI\EL F'ACTOR - F'&{N (LCO 3.2,2)F** S F*** * ( I + pF * ( l-p))where P = Thermal Power / Rated Thermal power For* : 1.65 forRFA-2 fuel, and PF = 0.3 2.7 AXrAL FLIX DTFFERENCE - AFD (LCO 3.2.3)2.7.1 The AFD limits for Cycle 15 are provided in Figure 3.2.8 REFUELTNG BORON CONCENTRATTON (LCO 3.e.1)2.8.1 The refueling boron concentration shall be > 2000 ppm.3.0 NUMBER OF TPBARS rN REACTOR CORE (TS 4.2.1)3.0.1 There are I 104 tritium producing burnable absorber rods (TPBARs) in the reactor core for Cycle 15.Unit I WATTS BAR Cycle 15 Revision I Page 5 of l0 250 225 200 t75 150 L25 100 75 o,4 0.6 FRACTION OF RATED THERMAL POWER Figure I Control Bank Insertion Limits Versus Thermal power Four Loop Operation Note: Fully withdrawn region shall be the condition where shutdown and control banks are at a position within the interval of >_225 and323l steps withdrawn.
Core Burnup Penalty MVyD/IUTU)             Factor All Burnups           I,0200 Note:
z 3&, a-I E=ln o, UI F 9 z o-F a o A E UJ F ttl Y z o o o G, Unit I WATTS BAR Cycle l5 Revision I (ALL POWERS, 2251 (a.Lg7, 225l, (0.703, 225l, BANK B (0.0, 190)BANK C (0.0, 64l, (0.227, 0)Page 6 of l0 t-(1)=o o_*o LL'r()o.N (u E L o z.1.2 1.1 1.0 0.9 0.8 o.7 0.6 0.5 o,4 0.3 o-2 0.1 o o 468 Core Height (feet)10 12 Cycle 15 Revision I Unit I WATTS BAR Figure 2 K(Z) - Normalizetl Fq(Z) as a Function of Core Height-, E-L--- r i co..Heioht K(7\I o ooo 1.ooo-1 6.000 1.000 i i 12.000 0.92s6 i Page 7 of l0 120 110 100 90 80 70 60 50 40 30 20 10 0 Unit I WATTS BAR o=o o-(tr E lb o F E o (I, E l{-o s-50 40-30-20-10 0 10 Flux Difference (A l) %20 30 40 50 Cycle l5 Revision 1 Figure 3 Axial Flux Difference Acceptable Operation Limits as a function of Rated Thermal Power (RAOC)(-12, 1 00)(7, 10 0)Acceptable Operation Unaccepta Operatio tacceptal Coeratior I\r-l\I\I\I I I\ter Page 8 of l0 Unit I WATTS BAR Table A.l RAOC W(Z) Surveillance Factors Cycle l5 Revision I Height ( ft)IIax \\'(z)at 150}I\ITDAITT' (30%Porver)\Iax \\'(z)at 150\I\\'DAITIT (7s%Porver)\Iar \\I(z)at 150\I\\'DAITTT (1009'0 Polver)\Ias \Y(z)at 2000\,I\\'DI}TTI.I (lo0%Polyer')Nlax \\'(z)at 4000}T\\DAITT" (r00%Power)Ilax 11I(z)at 8000 NI\\lDAITT' (100%Power)NIax \Y(z)at 12000 NI\\'Dr\ITLr (100%Power)Ilax \1'(z)at 16000}t\\.DAITTT (100%Pow,er)\Iax \\I(z)at 18000 Nt\\.DI}TTTI (r00%Pon'er)07.1 t.i)000 I 0000 1.0000 1.0000 1.0000 1 0000 L0000 1 0000 I 0000 I 8713 I 000r)1.0.000 L0000 I 0000 1.0000 I 00{)0 I.0000 1.0000 I 0t)00 1 6720 I 0000 I 00r)0 I 0000 1.0000 1 000t)t 000r)1.0000 1.0000 I "0000 L-1r08 L0000 1.0000 I 0000 t 0000 L000(l 1.0000 1.0()0r)1.0000 I.0000 1.169 I 0000 1.0000 i 0000 1 0000 1 0000 I 0000 I t)000 1 0000 1 0000 1.068-1 1.0000 r 0000 1.0000 1.0000 1.000t)i 0000 I 0000 I 0000 1 0000 0 8671 1.3719 I 356.1 1.2i6 t.l5-t 1 I 2t86 t.1040 I 924 I 75-l I 7-r6 0 66-i8 l -1(106 t 33.tl I2t-14 I 2;i.99 l.l l7q LlOl _1 i 917 I 7t4 65.1 0.+646 I -l-[7 115 I 2081 l 2417 l.l t4f)96t I 877 I 708 t 98 0.16-l-1 l.-1201 r ?9-t5 l 2tl07 1237.x 1 1094 891 I I l_l I 619 5.17 fi 06l t t.30ll t l69q 94-1 l .l_1 17 I 10_16 I.S l6 I 11 I 561 48_1 e 8608 l.l87e 1 l-169 I 9ll I .21-l7 I 9,s?10 I 705 I 517 I 47-l 9.6-i9(r t.l7 I 7 I 9l l :180 I 876 I 6.{I 6l I 509 58 e.-158-l 5 I l9r t I 89-5 l.l I CrS I s67 I 6 I-5-s6 I 590 I fi60 9 l57l t 116l I 1777 I 9-l t tIle I 87Cr I 6,59 I 57i I 6,17 I I 9.055e I.t 186 I I 667 I 970 I t08l I B7 I 6-5-t I 585 I 66.1 I 785 8 85.ltr I . 19.t7 I I _s37 I 960 I 1998 I 846 I 659 I 59r I j17 I 8_r0 8.651"1 r.17t.1 I i43e I 95.+I le-16 t 8l-l i 704 I 644 I 8lr I 881 8,45t1 1.1579 L 1.136 1 2020 I . l9.q_l 878 I 771 I 74e I 949 I 205 8 :509 t.141_l i . 1.151 1.2083 1.202-s 89.q I 810 I 868 I 208 I 2207 8.0-197 I r17 t I l4-\0 L2 r 2-5 l :041 8e8 I 8+l I 9fr9 I tt04 l.l-l-1 7.8484 L 1095 I 14.15 I lt4e 1 2046 I 871 857 1.1046 t 2297 1.24,16 7,6+72 1.0916 I . l'1-ll I 1-s3 I 20-rl I 8.r8 850 l.: 102 l.ti66 1.2514 7.-+459 1.0795 l t4ll I .2138 1.1001 I 866 815 t.: I_15 l.l4 t0 1 1565 7.14-17 1.0666 I i -t8-s I 106 I 9-s-l I 869 I 776 I II47 l.t4l0 i.2591 7 043 1.0561 I lll9 L20-52 I 894 I 84e I 756 I 137 I 42fi 1,259 r 6 8411 I.0-t97 I I lt)r{1.2009 I 848 I 817 I 751 I 2108 I.tt99 1.2567 6.6-+ l0 l.ru7l L l-105 I 99t)I 817 I 77 I 7tl r t06_3 l 2r5l l.2,sl0 6 "1i97 L0.1-+4 L llS I 949 166 I 7ll I 691 1.2003 l.lle0 l.?4,s6 61,18 L0"l]]L 1t58 I 89,3 l.696 (}+l I 6.10 9t5 1 2207 l.l37l 6.0173 1.0_196 l l]19 I 816 6l-t I 587 I 8I I 83 I 2105 I 2164 8-160 I 0388 l. I 190 I 74tl 578 1-1 I_il9 I 7t8 982 L21-17 6.1"18 1 0400 II 75 t.684 I 520 1.-t66 I Jt9-t I 601 846 I 99 5 .$t-5 I,0417 I I l6l I 6-13 I 4?4 I 431 I 469 I 5_3.1 719 847 5 trls 1.045_l t ll-58 I-59-5 I 446.ll8 4.19 I 515 I 6t9 749 5.t)-t l0 L0-s07 I l7l I 56.{I 4,r I I r11+_1 ', 4-56 I 5t0 I 612 72{)-1 8198 I "057_1 I I t89 515 I 418 I.115 476 I 504 I 610 I 71-t 4 6186 1.06-j8 l ttge I 50t)I 399 I.l3l I.+8 I 500 I 594 I 688 4".t]73 I.070: I Il0-l I-15e I 37-1 I+10 I-189 I 488 I 7l I 6_s4 4:t6l t.0766 I I t99 I 4ll ,14 I 40-1 I 48 t.470 I-54.1 I 6ll 4.01.t8 t.0818 Lll93 I-j60 I-106 I l8-l I 481 I"159 I 5ll I-5(r3 8ll6 l.t)88tr l. I I77 I.l0t)168 I 154 I 468 I 461 I 468 I 504-1 62t,l 1.0951 tl 70 I 247 I?7 ils I 461 I 507 4_17 I 4-56 l4llt t 1060 I l20i I 2-l,l 184_i4!)I 496 I 56.r I 449 I 448 l lt9e LIl9l I l2-58 I 241 te3 38-5 I 550 I 620 469 I 454 1.0186 L l3e5 I tiE I 12l I t8l l.,+75 I 6-17 I 685 521 I 504 8174 l. I69e t. I 5e9 I 497 I-lfr9 I 6-11 I 795 I 802 I 65_l 6_16 2,616t LtOr 7 1. 1 836 l.683 I 669 I 85-l I .t0l l I!)71 I 8.1-l t 828 1.il.19 l.t-l4l t 2067 t 870 I 873 I t060 I 2220 I 2128 L202-l L2008 l lI-17 I.:67-s 1.2-108 L2057 t 207'v 1.226{1.2.l]4 I .1281 I Ile8 LI t84 I0ll4 l.l02l 1.2547 1.224t)t.2271 I 146l l.t6t2 I.:427 I 2367 I.2-l-54 t,8l t I " jj79 1.2781 t,2-+17 I 1469 l l6+e t.ts09 1.256-l l.t-518 l 2-5l6 I 6099 I_174 I 100.1 1 1.58 I 650 I "281-1 Ll98 l t t6e2 L?677 1.1666 L.t08r l.4l t0 I.3110 t.27?6 I 1808 I 2e74 1 3130 I 816 I 2805 I.2795 1.1075 1.446(r i.-3-18-j I 18-1,1 1 2913 I 087 l.-i239 I.2904 I 894 1.288s I 00Cr 1.0000 1.0000 1 000t1 l.000rl I 0000 l.t)000 l,0000 I 00fx)L0000 0.8050 Lt1000 l.00fi0 1.0000 I 000n L0000 1.0000 r.0000 t 0000 L0000 0.(r0i7 1.0000 1.0(J00 1.0000 1 0000 1.0000 1.0000 r.0000 I 0000 1.0000 0 4015 i "0000 1.0000 l.00fit)I 0000 I 0000 1.0000 I.0000 t.0000 L0000 0.20r 1 I.0000 L00t)0 1.0000 1.0000 1 0000 L0000 r.0000 1.0000 t.0000 0.0000 I t)000 l.0rl00 I 0000 I 0000 I 0000 I.0000 1.0000 1 0000 L0000 Page 9 of 10 Table A.2 Fq*(Z) Penalty Factor Core Burnup MVyD/IUTU)
: l. The Penalty Factor, which is applied to Fq*(4 for compliance with Surveillance Requirement 3.2.1.2, is the maximum factor by which Fo*(Z) is expected to incr@se per 3l Effective Full Power Days (EFPD) starting from the burnup at which the fqwlZ; was determined.
Fq*(z)Penalty Factor All Burnups I,0200 Note: l. The Penalty Factor, which is applied to Fq*(4 for compliance with Surveillance Requirement 3.2.1.2, is the maximum factor by which Fo*(Z) is expected to incr@se per 3l Effective Full Power Days (EFPD) starting from the burnup at which the fqwlZ; was determined.
Unit I                                                                               Cycle 15 WATTS BAR                               Page l0 of l0                             Revision I
Unit I WATTS BAR Cycle 15 Revision I Page l0 of l0 ENCLOSURE 2 Watts Bar Nuclear Plant, Un,t2, Cycle 2 Gore Operating Limits Report Revision 1 January 201 8 QA Rscord ul8 190t 18 801 WATTS BAR NUCLEAR PI.AiIT, UNIT 2, CYCLE 2 CORE OPERATING LIiIITS REPORT RwEhn I Jentnry 2018 Gz/z'/g Unlt 2 WATTSBAR Cycle 2 Revisim I W. AndrauwhfrE Rihhle, nlrR Fuat Englncerlng Added st and 3,1.7 per NRC Cornmllrnent f lglg0rcal PagB I of lo I.O CORE OPERATING LIMITS REPORT This Core Operating Limits Report (COLR) for Watts Bar Unit 2 Cycle 2 has been prepared in accordance with the requirements of the Technical Specification (TS) 5.9.5.The Technical Specifications affected by this report are listed below: 3.1.4 Moderator Temperature Coefficient (MTC)3.1.5 Rod Group Alignment Limits 3.1.6 Shutdown Bank Insertion Limits 3.1.7 Control Bank Insertion Limits 3.2.1 Heat Flux Hot Channel Factor (Fq(Z))3.2.2 Nuclear Enthalpy Rise Hot Channel Factor (F**)3.2.3 Axial Flux Difference (AFD)3.9.1 BoronConcentration


===2.0 OPERATING===
ENCLOSURE 2 Watts Bar Nuclear Plant, Un,t2, Cycle 2 Gore Operating Limits Report Revision 1 January 201 8


LIMITS The cycle-specific parameter limits for the specifications listed in section 1.0 are presented in the following subsections.
QA Rscord ul8 190t 18 801 WATTS BAR NUCLEAR PI.AiIT, UNIT 2, CYCLE 2 CORE OPERATING LIiIITS REPORT RwEhn I Jentnry 2018 W. AndrauwhfrE Rihhle, nlrR Fuat Englncerlng Gz/z'/g Added st and 3,1.7 per NRC Cornmllrnent f lglg0rcal Unlt 2 Cycle 2 WATTSBAR                              PagB I of lo                              Revisim I
These limits have been developed using the NRC approved methodologies specified in the Technical Specifications Section 5.9.5.The following abbreviations are used in this section: BOL Beginning of Cycle Life ARO All Rods Out HZP Hot Zero Thermal Power EOL End of Cycle Life RTP Rated Thermal Power Unit 2 WATTS BAR Cycle 2 Revision I Page 2 of l0


===2.1 MODERATOR===
I.O    CORE OPERATING LIMITS REPORT This Core Operating Limits Report (COLR) for Watts Bar Unit 2 Cycle 2 has been prepared in accordance with the requirements of the Technical Specification (TS) 5.9.5.
The Technical Specifications affected by this report are listed below:
3.1.4 Moderator Temperature Coefficient (MTC) 3.1.5 Rod Group Alignment Limits 3.1.6 Shutdown Bank Insertion Limits 3.1.7 Control Bank Insertion Limits 3.2.1 Heat Flux Hot Channel Factor (Fq(Z))
3.2.2 Nuclear Enthalpy Rise Hot Channel Factor (F**)
3.2.3 Axial Flux Difference (AFD) 3.9.1 BoronConcentration 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 the Technical Specifications Section 5.9.5.
The following abbreviations are used in this section:
BOL            Beginning of Cycle Life ARO            All Rods Out HZP            Hot Zero Thermal Power EOL            End of Cycle Life RTP            Rated Thermal Power Unit 2                                                                                      Cycle 2 WATTS BAR                                Page 2  of l0                                  Revision I


TEMPERATURE COEFFTCTENT - MTC (LCO 3.1.4)2.1.1 The MTC limits are: The ARO/HZP - MTC shall be less positive than or equal to 0 Ak/l/oF (upper limit).With the measured BOL/ARO/HZP - MTC more positive than -2.25 x l0-s Ak&/oF (as-measured MTC limit), establish control rod withdrawal limits to ensure the MTC remains less positive than or equal to 0 Ak/ld"F (upper limit) for all times in core life.The EOL/ARO/RTP - MTC shall be less negative than or equal to 4.50 x 104 Ak/ldoF (lower limit).2.1.2 The 300 ppm surveillance limit is: The measur.ed 300 ppm /ARO/RTP-MTC should be less negative than or equal to-3.65 x 104 Ak/ldoF.2.1.3 The 60 ppm surveillance limit is: The measured 60 ppm /ARO/RTP-MTC should be less negative than or equal to-4.1g x 104 ak/v"F.2.2 SHUTDOWN MARGIN - SDM (LCO 3.1.5,3.1.6, 3.1.7)2.2.1 For TS 3.1.5, SDM shall be Z 1.6% Ak&in MODE I and MODE 2.2.2.2 For TS 3.1.6, SDM shall be 2 1.6% Ak&in MODE I and MODE 2.2.2.3 For TS 3.1.7, SDM shall be 2 1.6% Ak&inMODE I andMODE2withhr>
2.1  MODERATOR TEMPERATURE COEFFTCTENT - MTC (LCO 3.1.4) 2.1.1 The MTC limits are:
1.0.2.3 SHUTDOWN BAI\TKINSERTION LIMITS (LCO 3.1.6)2.3.1 The shutdown banks shall be withdrawn to a position greater than or equal to 225 steps withdrawn.
The ARO/HZP - MTC shall be less positive than or equal to 0 Ak/l/oF (upper limit).
With the measured BOL/ARO/HZP - MTC more positive than -2.25 x l0-s Ak&/oF (as-measured MTC limit), establish control rod withdrawal limits to ensure the MTC remains less positive than or equal to 0 Ak/ld"F (upper limit) for all times in core life.
The EOL/ARO/RTP - MTC shall be less negative than or equal to 4.50 x 104 Ak/ldoF (lower limit).
2.1.2 The 300 ppm surveillance limit is:
The measur.ed 300 ppm /ARO/RTP-MTC should be less negative than or equal to
                  -3.65 x 104 Ak/ldoF.
2.1.3 The 60 ppm surveillance limit is:
The measured 60 ppm /ARO/RTP-MTC should be less negative than or equal to
                -4.1g x 104 ak/v"F.
2.2   SHUTDOWN MARGIN           - SDM (LCO 3.1.5,3.1.6, 3.1.7) 2.2.1 For TS 3.1.5, SDM shall be Z 1.6% Ak&
in MODE I and MODE 2.
2.2.2 For TS 3.1.6, SDM shall be 2 1.6% Ak&
in MODE I and MODE 2.
2.2.3 For TS 3.1.7, SDM shall be   2 1.6% Ak&
inMODE I andMODE2withhr> 1.0.
2.3   SHUTDOWN BAI\TKINSERTION LIMITS (LCO 3.1.6) 2.3.1 The shutdown banks shall be withdrawn to     a position greater than or equal to 225 steps withdrawn.
2.4  CONTROL BAI\IK INSERTION LII\{ITS (LCO 3.1.7) 2.4.1 The control banls are fully withdrawn or shall be limited in physical insertion    as shown in Figure l.
2.4.2Each control bank shall be considered fully withdrawn from the core at greater than or equal to 225 steps.
2.4.3 The control banks shall be operated in sequence by withdrawal of Bank A, Bank B, Bank C, and Bank D. The control banks shall be sequenced in reverse order upon insertion.
Unit2                                                                                      Cycle 2 WATTS BAR                              Page 3  of 10                                Revision I


===2.4 CONTROL===
2.4.4Each control bank not fully withdrawn from the core shall be operated with the following overlap as a function of park position.
BAI\IK INSERTION LII\{ITS (LCO 3.1.7)2.4.1 The control banls are fully withdrawn or shall be limited in physical insertion as shown in Figure l.2.4.2Each control bank shall be considered fully withdrawn from the core at greater than or equal to 225 steps.2.4.3 The control banks shall be operated in sequence by withdrawal of Bank A, Bank B, Bank C, and Bank D. The control banks shall be sequenced in reverse order upon insertion.
Park Position (steps)           Bank overlap   (steps)         Bank Difference (steps) 225                               109                             t l6 226                                ll0                            I l6 227                                nl                              ll6 228                                lt2                            ll6 229                                  l3                              l6 na                                  t4                              t6 23t                                  l5                              t6 2.5   HEAT FLUX HOT CHANI\IEL FACTOR -Fq(Z) (tCO 3.2.1)
Unit2 WATTS BAR Cycle 2 Revision I Page 3 of 10 2.4.4Each control bank not fully withdrawn from the core shall be operated with the following overlap as a function of park position.Park Position (steps) Bank overlap (steps) Bank Difference (steps)225 226 227 228 229 na 23t 109 ll0 nl lt2 l3 t4 l5 t l6 I l6 ll6 ll6 l6 t6 t6 2.5 HEAT FLUX HOT CHANI\IEL FACTOR -Fq(Z) (tCO 3.2.1)Fq(Z) < [CFQ/ P]
Fq(Z) < [CFQ/ P]
* K(Z) for P > 0.5 Fq(z) < [CFQ/ 0.5J
* K(Z)     for P > 0.5 Fq(z) < [CFQ/ 0.5J
* K(Z) for P < 0.5 Where P - Thermal Power lRated rhermal Power Unit2 WATTS BAR 2.5.1 CFQ:2.50 2.5.2 K(Z) is provided in Figure 2.z.s.: ro*14 : Fo"(z)
* K(Z)   for P < 0.5 Where P   -   Thermal Power lRated rhermal Power 2.5.1 CFQ:2.50 2.5.2 K(Z) is provided in Figure 2.
z.s.: ro*14     : Fo"(z)
* W(Z)lp for p > 0.5 Fo*(Z): Fo"(Z)
* W(Z)lp for p > 0.5 Fo*(Z): Fo"(Z)
* W(2y0.5 for P < 0.5 where: w(Q values are provided in Table A.l. The table provides suflicient inforrnation to determine w(Z) versus core height for all cycle burnups.2.5.4Partpower W(Z) values are only required to be used when the part power surveillance is perfomred using the fixed incore detector system.Z.S.S f o*121Penalty Factor The fowlz; penalty factor is provided in Table A.2.Cycle 2 Revision I Page 4 of l0  
* W(2y0.5 for P < 0.5 where: w(Q values are provided in Table A.l. The table provides suflicient inforrnation to determine w(Z) versus core height for all cycle burnups.
2.5.4Partpower W(Z) values are only required to be used when the part power surveillance is perfomred using the fixed incore detector system.
Z.S.S f o*121Penalty Factor The   fowlz; penalty factor is provided in Table A.2.
Unit2                                                                                    Cycle 2 WATTS BAR                                Page 4  of l0                                Revision I
 
2.6    NUCLEAR ENTHALPY RISE HOT CHAI\INEL FACTOR - F*N (tCO 3'.2)
F**s F*** * ( I +PF + ( l-P))
where P = Therrral Power/ Rated Thermal Power F***    = 1.65 forMA-2 fuel, and PF - 0.3 2.7    AXIAL FLTIXIIIFFERENCE - AFD (LCO            3.2"3) 2.7 .l The AFD limits for Cycle 2 are provided in Figure 3.
2.8    REFUELINGBORONCONCBNTRATION (LCO3.9.1) 2.8. t The refueling boron concentration shall be 2 2000 ppm.
Unit 2                                                                    Cycle 2 WATTS BAR                              Page 5 of l0                      Revision I
 
250 (ALL POWERS, 225]l 225 (o.tg7,  225',)                      (0.703, 225ll 200 BANK    B z  175 3          (0.0, 190) oc o
I ts 3  150 Itt a.
UJ F                                          BANK 9                                                  C 2
o  L25 F
U; o
a.
o.
UI F  100 ln zv o
o    75 o
G, (0.0, 64)
(0.227 , o) 0.0              o.2                0.4       0.5          0.8              1.0 FRACTION OF RATED THERMAT POWER Figure I Control Bank Insertion Limits Versus Thermal power Four Loop Operation Fully withdrawn region shall be the condition where shutdown and control banks are at a position within the interval of >225 and<231steps withdrawn.
Unit 2                                                                                  Cycle  2 WATTS BAR                                    Page 6    of 10                      Revision 1
 
L,2 1.1 0.9 0.8 L
o o.
c, ll.
0.6                                LOre Hetgnt    K(z)
  =,
o e(E 0.000        L.00( )
tr                                        6.000        L.00( )
t o
o.s L2.000        1.00 )
z 0.4 0.3 0.2 0.1 10  LL    12 Core Height (feet)
Figure 2 K(Z) - Normalized Fq(Z) as a Function of Core Height Unit 2                                                                Cycle 2 WATTS BAR                    Page 7 of l0                            Revision I
 
124 110 100 I
b-      l- r,
                                                            \
10
                                                              \I 90                                  Acceptable Operation        t
                                                                \
F 80        racceptabNel-                                          -. Unaccepta, Operation      I                              \            I b
                            -tI I                                                  Ooeratiol o
      =                                                            \
o-  70 6                                                                \
E o
Foo                        I                                        \
lC o                      I                                          I E,
r.-
o 50                I                                              \
be                                                              @
40 30 20 10
            -50  40    -30    -2A -10            0        10          20    30      40      50 Flux Difference (A l) %
Figure 3 Axial Flux Difference Acceptable Operation Limits as a function of Rated Thermal Power (RAOC)
Unit 2                                                                                    Cycle 2 WATTS BAR                            Page 8  of l0                                   Revision 1
 
Table A.l RAOC W(Z) Suryeillance Factors Heieht (ft  \Iax \\'(z    Nlar \\:(z        \Iax \\'(z      llar  \\r(z    \[ar  !1-(z    \Iax \\'(z    \Iar \\'(z      \Iax \\'{z at 150      at 150            at 150        at 2000          at 6000        at 10000      at 14000        at 16000 NI\\'D,&IT['  NI\\IDAITI.]    NI\\'D/NITII      \T\VD/},TTT:    \I\\'D/}tTI.'    }T\I'DAITTI  NI\\'DA[TTT    II\YD^mrr (30o/o Pon'er (75o/o  Power)  (I00% Porver)    (100% Poryer)  fiD0oh Power)    (l00o/o Power) (100% Pou'er)  (100% Pon'er) 12.0720        1.0000      1.0000            1.0000          1.0000          1.0000          1.0000        1.0000        1.0000 11.8708        1.0000      1.0000            1.0000          1.0000          1.0000          1.0000        1.0000        1.0000 11.6696        1.0000      1.0000            1.0000          1.0000          1.0000          1.0000        1.0000        1.0000 11.468{        1.0000      r.0000            1.0000          1.0000          1.0000          1.000t)        1.0000        1.0000 tL.2672        1.0000      1,0000            1.0000          1.0000          1.0000          1.0000        1.0000        1.0000 r1.0660        1.0000      1.0000            1.0000          1.0000          1.0000          1.0000        1.0000        1.0000 10.8648        1.4084      1.4571            1.3286          1.3235          1.3275          1.1820        1.1574        l.r53l 10.66J6        1.3886      1.4287            l.t22l          l.Jl85          1.3127          1.t77i        1.1526        1.1487 10.4624        1.3626      1.J906            1.J150          1.3166          1.2897          1.17r8        1.1469        1.r435 10.2612        t.3419      1.3633            1.3060          t.Jl l4          1.2662          1.165r        1.1,105        1.1378 10.0600        r.3171      1.3310            r.2952          1.3032          1.2594          1.1574        1.13t2          r.1363 9.8588        1.2934      1,3014            1.2819          I.2941          1.2318          1.1495        1.1255          1.r340 9.6576        1.2771      r.2876            1.2822          1.284-l          1.22J0          t.t1t7        t.l17J          l.l31l 9.4564        1.2529      1.26J6            t.2716          t.2128          t.2229          1.1387        1.1180          t.1292 9.2552        r.2254      1.2J44            1.2653          1.25e9          l.22ll          1.1456        r.126{          1.1386 9.05{0        1.2019      1.2085            1.2586          1.2507          1.2188          r.r508        1.1370          l.l,165 8.8S28        1.1866      r.21JJ            1.2640          1.2580          1.2t26          1.1532        1.1444          l. I 529 8.6516        1.1766      t.2t7t            1.2719          1.2614          1.2lJl          1.r557        1.t584          1.1655 8.4504        1.r639      1.2139            1.2763          1.2628          t.2261          l.t62r        r.1803          1.r847 8.2492        1.1554      1.1989            1.2784          1.2662          r.2317          1.r704        1.1991          r.2052 8.0480        1.1440      1.2r13            1.2858          1.2751          1.2461          1.r778        1.2156          1.2244 7.8468        1.1366      1.2222            1.2939          1.2809          1.2525          1.1881        t.22e7          1.24t0 7.6456        1.1296      1.2185            1.2967          1.2824          1.2547        1.1955        1.2,105        1.2542 7.4444        1.1238      t.2126            1.2968          l.28lJ          1.2548          1.2012        1.2494        1.2654 7.2432        1.1152      L2474              1.2936          1.2771)          1.2517          1.2042        1.2549          1.2729 7.0420        1.1046      1.205s            1.2883          1.2706          1.2465          1.2053        1.2577        1.2775 6.8408        1.095J      1.1977            1.2801          1.2616          t.2392          1.204J        1.2581        1.2794 6.6396        1.0883      1.1873            t-2687          1.2500          1.2298          1.2015        1.2561        r.2785 6.4t84        l.08,lJ      l. I 782          1.256r          1.2i70          1.2189        1.1976        1.2523        1.2760 6.2372        1.0678      1.1667            r.2420          1.2227          r.2065          1.1922        1.2464        1.2709 6.0J60        1.0577      l.l5.l3          1.2259            1.2066          1.1924          1.1851        1.238J        1.263.1 5.8J48        1.0505      1.1407            1.207s          1.1885          1.1768          1.1765        r.2280        1.2535 5.6J36        1.0458      1.1274            1.1880          1.1695          1.1602          1.1667        1.2157          1.2414 5.4J24        1.0318        1.1132            r.1695          1.1537          r.1485          1.1599        1.2051          1.2294 5.2312        1.0266        1.1062            1.1585          t.1462          l.l4rJ          1.1591        1.2067          r.2304 5.0300        1.0316        1.1052            1.1528          1.1403          1.1J82          1.1599        1.2081          1.2J0r 4.8288        1.0351        1.1029            1.r455          l.1JJ4          1.1372          1.16J6        1.2083          r.2281 4.6216        1.0375        1.1001            1.1376          1.1251          1.135,1        1.1660        1.2079          1.224,1 4.4264        1.0J9I        1.0962            r.1288          1.1173          l.lt29          1.1677        1.206.1        l.2l8e 4.2252        1.0397        1.0907            1.1I90          1.1081          1.1297          1.1684        r.2035          1.2t27 4.0240        1.0455      1.0861            r.1084          1.0982          1.1257          1.1683        1.1993          1.2060 3.8228        1.0506      1.081r            1.0973          1.0875          1.1210          t.1674        1.1936          1.1975 3.62r6        1.0439      1.4727            1.0860          1.0789          t.ll59          l.l65l        1.1862          1.1870 3.4204        r.0456      r.0669            1.0758          1.0775          r.1109          l.r682        1.1844          1.1797 3.2192        1.0556      1.066r            t.069E          1.0174          l.lllr          1.r71{        l.r85l          r.r760 3.0180        1.0666      1.0694            1.0685          1.079e          1.1150          1.1777        1.t882          1.r773 2.8168        1.0865      1.0820            1.0766          1.0958          t.1296          1.1880        1.2031          1.1943 2.6156        l.ll58      r.1038            1.0937          1.1178          1.1542          1.203s        1.2225          1.2124 2.4144        1.1444      1.1246            l.l0e7          1.1J87          1.t777          t.2252        1.2405          r.230J 2.2132        1.1803      t.t476            Ll26t            1.1604          r.2020          1.2484        1.2586          r.2.t82 2.0120        1.2165      1.r715            l.r12e          1.1824          1.2265          1.27fi        1.27s8          1.2652 1.8r08        1.2460      1.r940            1.r596          1.2043          1.2505          1.2927        1.29t9          1.2811 1.6096        1.2780      t.2149            1.175?          t.224e          1.2732          1.3130        1.3072          1.2962 1.4084        1.3122      1.2J44            1.1897          1.2439          1.2941          1.JJr8        1.3219          1.3108 1.2072        l.J4Jl      1.2528            r.20J0          1.261.1        1.J1J2          r.J488      1.3355          1.J246 1.0060        1.0000      1.0000            1.0000          r.0000          1.0000          1.0000        1.0000          1.0000 0.8048        1.0000      1.0000            1.0000          1.0000          1.0000          1.0000        1.0000          1.0000 0.6036        1.0000      1.0000            1.0000          1.0000          1.0000          1.0000      1.0000          1.0000 0.4024        1.0000      1.0000            1.0000          1.0000          1.0000          1.0000      r.0000          r.0000 0.2012      1.0000        1.0000            1.0000          1.0000          1.0000          1.0000        1.0000          r.0000 0.0000        1.0000      1.0000            1.0000          1.0000          1.0000          1.0000      1.0000          1.0000 Unit 2                                                                                                            Cycle  2 WATTS BAR                                              Page 9 of    10                                      Revision I


===2.6 NUCLEAR===
Table A.2 Fq*(Z) Penalty Factor Burnup             Penalty (MWD/I\,ITU)           Factor 150             t.0237 300             1.0244 45t             1.0250 60 I             t.0254 751             t.0253 902             t.0248 I 052             l.an7 1203             t.0221 I 353           1.0201 I 503           1.0200 Lt7 t5             1.0200 11863             1.0203 t20t2             t.0206 t2160             I .0210 I 2308             1.0209 12456             1.0205 t2605             I .0201 12753             1.0200 Note:
ENTHALPY RISE HOT CHAI\INEL FACTOR - F*N (tCO 3'.2)F**s F*** * ( I +PF + ( l-P))where P = Therrral Power/ Rated Thermal Power F*** = 1.65 forMA-2 fuel, and PF - 0.3 2.7 AXIAL FLTIXIIIFFERENCE - AFD (LCO 3.2"3)2.7 .l The AFD limits for Cycle 2 are provided in Figure 3.2.8 REFUELINGBORONCONCBNTRATION (LCO3.9.1) 2.8. t The refueling boron concentration shall be 2 2000 ppm.Unit 2 WATTS BAR Cycle 2 Revision I Page 5 of l0 250 225 200 175 150 L25 100 75 0.0 o.2 0.4 0.5 0.8 1.0 FRACTION OF RATED THERMAT POWER Figure I Control Bank Insertion Limits Versus Thermal power Four Loop Operation Fully withdrawn region shall be the condition where shutdown and control banks are at a position within the interval of >225 and<231steps withdrawn.
: 1. The Penalty Factor, which is applied to fow1zl for compliance with Surveillance Requirement 3.2.1.2, is the maximum factor by which Fq*(Z) is expected to increase per 3l Effective Full power Days (EFPD) starting from the bumup at which the     rowlz; was determined.
z 3 oc o I ts 3 Itt a.UJ F 9 2 o-F U;o a.o.UI F ln v z o o o G, Unit 2 WATTS BAR Cycle 2 Revision 1 (ALL POWERS, 225]l(o.tg7, 225',)(0.703, 225ll BANK B (0.0, 190)BANK C (0.0, 64)(0.227 , o)Page 6 of 10 L,2 1.1 0.9 0.8 0.4 0.3 0.2 0.1 Unit 2 WATTS BAR L o o.*c, ll.=, 0.6 o e (E tr t o.s o z 10 LL 12 Core Height (feet)Figure 2 K(Z) - Normalized Fq(Z) as a Function of Core Height Cycle 2 Revision I K(z)L.00(L.00()))LOre Hetgnt 0.000 6.000 L2.000 1.00 Page 7 of l0 124 110 100 90 80 40 30 20-50 40-30 -2A -10 0 10 20 30 40 50 Flux Difference (A l) %Figure 3 Axial Flux Difference Acceptable Operation Limits as a function of Rated Thermal Power (RAOC)b=o o- 70 6 E o Foo lC o#.$E, r.- 50 o be 10 Unit 2 WATTS BAR Cycle 2 Revision 1 b-l- r, 10 I\\Acceptable Operation I t racceptabNel-Operation I\-. Unaccepta, I Ooeratiol I\F-t\I\I\I I I\@Page 8 of l0 Unit 2 WATTS BAR Table A.l RAOC W(Z) Suryeillance Factors Cycle 2 Revision I Heieht (ft\Iax \\'(z Nlar \\:(z\Iax \\'(z llar \\r(z\[ar !1-(z\Iax \\'(z\Iar \\'(z\Iax \\'{z at 150 at 150 at 150 at 2000 at 6000 at 10000 at 14000 at 16000 NI\\'D,&IT['
Unit 2                                                                                Cycle 2 WATTS BAR                             Page     l0 of 10                           Revision I}}
NI\\IDAITI.]
NI\\'D/NITII
\T\VD/},TTT:
\I\\'D/}tTI.'
}T\I'DAITTI NI\\'DA[TTT II\YD^mrr (30o/o Pon'er (75o/o Power)(I00% Porver)(100% Poryer)fiD0oh Power)(l00o/o Power)(100% Pou'er)(100% Pon'er)12.0720 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 11.8708 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 11.6696 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 11.468{1.0000 r.0000 1.0000 1.0000 1.0000 1.000t)1.0000 1.0000 tL.2672 1.0000 1,0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 r1.0660 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 10.8648 1.4084 1.4571 1.3286 1.3235 1.3275 1.1820 1.1574 l.r53l 10.66J6 1.3886 1.4287 l.t22l l.Jl85 1.3127 1.t77i 1.1526 1.1487 10.4624 1.3626 1.J906 1.J150 1.3166 1.2897 1.17r8 1.1469 1.r435 10.2612 t.3419 1.3633 1.3060 t.Jl l4 1.2662 1.165r 1.1,105 1.1378 10.0600 r.3171 1.3310 r.2952 1.3032 1.2594 1.1574 1.13t2 r.1363 9.8588 1.2934 1,3014 1.2819 I.2941 1.2318 1.1495 1.1255 1.r340 9.6576 1.2771 r.2876 1.2822 1.284-l 1.22J0 t.t1t7 t.l17J l.l31l 9.4564 1.2529 1.26J6 t.2716 t.2128 t.2229 1.1387 1.1180 t.1292 9.2552 r.2254 1.2J44 1.2653 1.25e9 l.22ll 1.1456 r.126{1.1386 9.05{0 1.2019 1.2085 1.2586 1.2507 1.2188 r.r508 1.1370 l.l,165 8.8S28 1.1866 r.21JJ 1.2640 1.2580 1.2t26 1.1532 1.1444 l. I 529 8.6516 1.1766 t.2t7t 1.2719 1.2614 1.2lJl 1.r557 1.t584 1.1655 8.4504 1.r639 1.2139 1.2763 1.2628 t.2261 l.t62r r.1803 1.r847 8.2492 1.1554 1.1989 1.2784 1.2662 r.2317 1.r704 1.1991 r.2052 8.0480 1.1440 1.2r13 1.2858 1.2751 1.2461 1.r778 1.2156 1.2244 7.8468 1.1366 1.2222 1.2939 1.2809 1.2525 1.1881 t.22e7 1.24t0 7.6456 1.1296 1.2185 1.2967 1.2824 1.2547 1.1955 1.2,105 1.2542 7.4444 1.1238 t.2126 1.2968 l.28lJ 1.2548 1.2012 1.2494 1.2654 7.2432 1.1152 L2474 1.2936 1.2771)1.2517 1.2042 1.2549 1.2729 7.0420 1.1046 1.205s 1.2883 1.2706 1.2465 1.2053 1.2577 1.2775 6.8408 1.095J 1.1977 1.2801 1.2616 t.2392 1.204J 1.2581 1.2794 6.6396 1.0883 1.1873 t-2687 1.2500 1.2298 1.2015 1.2561 r.2785 6.4t84 l.08,lJ l. I 782 1.256r 1.2i70 1.2189 1.1976 1.2523 1.2760 6.2372 1.0678 1.1667 r.2420 1.2227 r.2065 1.1922 1.2464 1.2709 6.0J60 1.0577 l.l5.l3 1.2259 1.2066 1.1924 1.1851 1.238J 1.263.1 5.8J48 1.0505 1.1407 1.207s 1.1885 1.1768 1.1765 r.2280 1.2535 5.6J36 1.0458 1.1274 1.1880 1.1695 1.1602 1.1667 1.2157 1.2414 5.4J24 1.0318 1.1132 r.1695 1.1537 r.1485 1.1599 1.2051 1.2294 5.2312 1.0266 1.1062 1.1585 t.1462 l.l4rJ 1.1591 1.2067 r.2304 5.0300 1.0316 1.1052 1.1528 1.1403 1.1J82 1.1599 1.2081 1.2J0r 4.8288 1.0351 1.1029 1.r455 l.1JJ4 1.1372 1.16J6 1.2083 r.2281 4.6216 1.0375 1.1001 1.1376 1.1251 1.135,1 1.1660 1.2079 1.224,1 4.4264 1.0J9I 1.0962 r.1288 1.1173 l.lt29 1.1677 1.206.1 l.2l8e 4.2252 1.0397 1.0907 1.1I90 1.1081 1.1297 1.1684 r.2035 1.2t27 4.0240 1.0455 1.0861 r.1084 1.0982 1.1257 1.1683 1.1993 1.2060 3.8228 1.0506 1.081r 1.0973 1.0875 1.1210 t.1674 1.1936 1.1975 3.62r6 1.0439 1.4727 1.0860 1.0789 t.ll59 l.l65l 1.1862 1.1870 3.4204 r.0456 r.0669 1.0758 1.0775 r.1109 l.r682 1.1844 1.1797 3.2192 1.0556 1.066r t.069E 1.0174 l.lllr 1.r71{l.r85l r.r760 3.0180 1.0666 1.0694 1.0685 1.079e 1.1150 1.1777 1.t882 1.r773 2.8168 1.0865 1.0820 1.0766 1.0958 t.1296 1.1880 1.2031 1.1943 2.6156 l.ll58 r.1038 1.0937 1.1178 1.1542 1.203s 1.2225 1.2124 2.4144 1.1444 1.1246 l.l0e7 1.1J87 1.t777 t.2252 1.2405 r.230J 2.2132 1.1803 t.t476 Ll26t 1.1604 r.2020 1.2484 1.2586 r.2.t82 2.0120 1.2165 1.r715 l.r12e 1.1824 1.2265 1.27fi 1.27s8 1.2652 1.8r08 1.2460 1.r940 1.r596 1.2043 1.2505 1.2927 1.29t9 1.2811 1.6096 1.2780 t.2149 1.175?t.224e 1.2732 1.3130 1.3072 1.2962 1.4084 1.3122 1.2J44 1.1897 1.2439 1.2941 1.JJr8 1.3219 1.3108 1.2072 l.J4Jl 1.2528 r.20J0 1.261.1 1.J1J2 r.J488 1.3355 1.J246 1.0060 1.0000 1.0000 1.0000 r.0000 1.0000 1.0000 1.0000 1.0000 0.8048 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 0.6036 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 0.4024 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 r.0000 r.0000 0.2012 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 r.0000 0.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 Page 9 of 10 Table A.2 Fq*(Z) Penalty Factor Burnup (MWD/I\,ITU)
Penalty Factor 150 t.0237 300 1.0244 45t 1.0250 60 I t.0254 751 t.0253 902 t.0248 I 052 l.an7 1203 t.0221 I 353 1.0201 I 503 1.0200 Lt7 t5 1.0200 11863 1.0203 t20t2 t.0206 t2160 I .0210 I 2308 1.0209 12456 1.0205 t2605 I .0201 12753 1.0200 Note: 1. The Penalty Factor, which is applied to fow1zl for compliance with Surveillance Requirement 3.2.1.2, is the maximum factor by which Fq*(Z) is expected to increase per 3l Effective Full power Days (EFPD) starting from the bumup at which the rowlz; was determined.
Unit 2 WATTS BAR Cycle 2 Revision I Page l0 of 10}}

Latest revision as of 06:56, 17 March 2020

Unit 1 Revision 1 of the Cycle 15 Core Operating Limits Report (COLR) and Unit 2 Revision 1 of the Cycle 2 Core Operating Limits Report (COLR)
ML18232A172
Person / Time
Site: Watts Bar  Tennessee Valley Authority icon.png
Issue date: 08/20/2018
From: Simmons P
Tennessee Valley Authority
To:
Document Control Desk, Office of Nuclear Reactor Regulation
References
Download: ML18232A172 (24)
v • d • e


Text

TennesSeeValleyAuthority,PostofficeBox2000,Sprin August 20,2018 10 cFR 50.4 ATTN: Document Control Desk U. S. Nuclear Regulatory Commission Washington, D.C. 20555-0001 Watts Bar Nuclear Plant, Units 1 and2 Facility Operating License Nos. NPF-90 and NPF-96 NRC Docket Nos. 50-390 and 50-391

Subject:

UNIT 1 REVISION 1 OF THE CYCLE 15 CORE OPERATING LIMITS REPORT (COLR) and UNIT 2 REVISION I OF THE CYCLE 2 CORE OPERATING LTMTTS REPORT (COLR)

Pursuant to Watts Bar Nuclear Plant Technical Specifications (Tech Spec) Section 5.9.5.d, Tennessee Valley Authority (TVA) has enclosed Revision 1 of the Unit 1 Cycle 15 COLR and Revision 1 of the Unit 2 Cycle 2 COLR. This revision added shutdown margin limits for Tech Spec 3.1.5, 3.1.6, and 3.1.7 per a NRC Commitment. The analytical methods used to determine the core operating limits were previously reviewed and approved by the NRC.

There are no regulatory commitments contained in this letter or the enclosure. Should you have questions regarding this submittal, please contact Kim Hulvey at (423) 365-7720.

Respectfully, Paul Simmons Site Vice President Watts Bar Nuclear Plant

U.S. Regulatory Commission Page2 August 20,2018

Enclosures:

Watts Bar Nuclear Plant, Unit 1, Cycle 15 Core Operating Limits Report, Revision 1, January 2018 Watts Bar Nuclear Plant, Unit 2, Cycle 2 Core Operating Limits Report, Revision 1, January 2018 cc (Enclosure):

NRC Regional Administrator - Region ll NRR Project Manager NRC Senior Resident lnspector

ENCLOSURE 1 Watts Bar Nuclear Plant, Unit 1, Cycle 15 Core Operating Limits Report Revision 1 January 2018

OARcord 130 tEolt8 800 WATTg BAR I{UCLEAR PIANT, UNIT I. CYCTE 15 CORE OPERATIiIO LIMITS REPORT Rolslon 1 January 2m8 Unnc Veillled by:

A. Rlbh6, nllln Fuol Englnorlrrg gf-3r1lpcr]!!C conrrnnminr i isr eozao lL 171ltE 00lt^ Renrih*ra G! a-*rdr Unil I WATTS BAR Clcle tS Pags I of l0 Rcvlsion I

1.0 CORE OPERATING LIMITS REPORT This Core Operating Limits Report (COLR) for Watts Bar Unit I Cycle 15 has been prepared in accordance with the requirements of the Technical specification (TS) 5.9.5.

The Technical Specifications affected by this report are listed below:

3.1.4 Moderator Temperature Coefficient (MTC) 3.1.5 Rod Group Alignment Limits 3.1.6 Shutdown Bank lnsertion Limits 3.1.7 Control Bank Insertion Limits 3.2.1 Heat Flux Hot Channel Factor (Fq(Z))

3.2.2 Nuclear Enthalpy Rise Hot Channel Factor (F**)

3.2.3 Axial Flux Difference (AFD) 3.9.1 BoronConcentration 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 the Technical Specifications Section 5.9.5.

The following abbreviations are used in this section:

BOL Beginning of Cycte Life ARO All Rods Out HZP Hot Zero Thermal Power EOL End of Cycle Life RTP Rated Thermal Power Unit I Cycle l5 WATTS BAR Page 2 of l0 Revision I

2.1 MODERATOR TEMPERATURE COEFFICTENT - MTC (LCO 3.1.4)

2. l.l The MTC limits are:

The ARO/HZP - MTC shall be less positive than or equal to 0 Ak/lJ'F (upper limit).

With the measured BOL/ARO/HZP - MTC more positive than -1.30 x lo-s Ak/ldoF (as-measured MTC limiO, establish control rod withdrawal limits to ensure the MTC remains less positive than or equal to 0 Ak/ld"F (upper limit) for all times in core life.

The EOL/AROiRTP - MTC shall be less negative than or equal to 4.5 x lOa Aldk/.F (lower limit).

2.1.2 The 300 ppm surveillance limit is:

The measured 300 ppm /ARO/RTP-MTC should be less negative than or equal to

-3.75 x l0-4 ak/ld"F.

2.1.3 The 60 ppm surveillance limit is:

The measured 60 ppm /ARO/RTP-MTC should be less negative than or equal to 4.2g x 104 al/ld.F.

2.2 SHUTDOWN MARGIN - SDM (LCO 3.1.5,3.1.6,3.1.7) 2.2.1 For TS 3.1.5, SDM shall be Z 1.6% Aklk in MODE I and MODE 2" 2.2.2 For TS 3.1.6, SDM shall be 2 1.6% Aklk in MODE I and MODE 2.

2.2.3 For TS 3 .L .7 , SDM shall be > I .6% Al/k in MODE I and MODE 2 with h*r > 1,0.

2.3 SHUTDOWIY BAIYK IIYSERTION LIMITS (LCO 3.1.6) 2 .3 . I The shutdown banks shall be withdrawn to a position greater than or equal to 225 steps withdrawn.

2.4 CONTROL BAIIK TNSERTTON LTMTTS (LCO 3.1.7) 2.4.1 The control banks are fully withdrawn or shall be limited in physical insertion as shown in Figure l.

2.4.2 Each control bank shall be considered frrlly withdrawn from the core at greater than or equal to 225 steps.

2.4.3 The control banks shall be operated in sequence by withdrawal of Bank A, Bank B, Bank C, and Bank D. The control banks shall be sequenced in reverse order upon insertion.

Unit I Cycle l5 WATTS BAR Page 3 of l0 Revision I

2.4.4Eachcontrol bank not fully withdrawn from the core shall be operated with the following overlap as a function of park position.

Park Position (steps) Bank overlap (steps) Bank Difference (steps) 225 109 116 226 ll0 lt6 227 ill il6 228 rr2 116 229 ll3 116 230 l 14 n6 23t lt5 116 2.5 HEAT FLUX HOT CHANNEL FACTOR- Fq(Z) (LCO 3.2.1)

Fq(Z) < [CFQ I Pl* K(Z) for P > 0.5 Fq(Z)< ICFQ l0.s]

  • K(Z) forP<0.5 Where P = Thermal Power / Rated Thermal Power 2.5.1 CFQ =2.50 2.5.2 K(Z) is provided in Figure 2.

z.ss rr*127= Fo'(Z)

  • w(z)tP for P > 0.5 Fq*(Z) = Fq"(Z)
  • W(2y0.5 for P < 0.5 where: w(Z) values are provided in Table A.l. The table provides suffrcient information to determine w(Z) versus core height for all cycle burnups.

2.5.4Part power W(Z) values are only required to be used when the part power surveillance is performed using the moveable incore detector system.

2.5.5 Faw(Z) Penalty Factor the FqwlZ; penalty factor is provided in Table A.2.

Unit I Cycle 15 WATTS BAR Page 4 of l0 Revision I

2.6 NUCLEAR ENTIIALPY RISE HOT CHANI\EL F'ACTOR - F'&{N (LCO 3.2,2)

F** S F*** * ( I + pF * ( l-p))

where P = Thermal Power / Rated Thermal power For* : 1.65 forRFA-2 fuel, and PF = 0.3 2.7 AXrAL FLIX DTFFERENCE - AFD (LCO 3.2.3) 2.7.1 The AFD limits for Cycle 15 are provided in Figure 3.

2.8 REFUELTNG BORON CONCENTRATTON (LCO 3.e.1) 2.8.1 The refueling boron concentration shall be > 2000 ppm.

3.0 NUMBER OF TPBARS rN REACTOR CORE (TS 4.2.1) 3.0.1 There are I 104 tritium producing burnable absorber rods (TPBARs) in the reactor core for Cycle 15.

Unit I Cycle 15 WATTS BAR Page 5 of l0 Revision I

250 (ALL POWERS, 2251 225 (a.Lg7, 225l, (0.703, 225l, 200 BANK B z

3 t75 (0.0, 190) a I

E 150 l=n o,

UI F BANK C 9

z o L25

-a F

o A

E UJ F 100 ttl Y

z o

o 75 o

G, (0.0, 64l, (0.227, 0) o,4 0.6 FRACTION OF RATED THERMAL POWER Figure I Control Bank Insertion Limits Versus Thermal power Four Loop Operation Note: Fully withdrawn region shall be the condition where shutdown and control banks are at a position within the interval of >_225 and323l steps withdrawn.

Unit I Cycle l5 WATTS BAR Page 6 of l0 Revision I

1.2 1.1 1.0

-, E-L--

- r 0.9 0.8 t-(1) o= o.7 o_

o LL i co.. Heioht K(7\

0.6

'r()

o I-1 o ooo 1.ooo

.N 6.000 1.000 i 12.000 0.92s6 i

(u i E 0.5 L

o z.

o,4 0.3 o-2 0.1 o

o 468 10 12 Core Height (feet)

Figure 2 K(Z) - Normalizetl Fq(Z) as a Function of Core Height Unit I Cycle 15 WATTS BAR Page 7 of l0 Revision I

120 110

(-12, 1 00) (7, 10 0) 100 90 Acceptable Operation 80 Unaccepta tacceptal I \

o-o o

=

Operatio r-l \

Coeratior (tr 70 I \

I E

lb o

\

F Eo 60 I I E

(I, l{-

o 50 I \

s ter 40 30 20 10 0

-50 40 -30 -20 -10 0 10 20 30 40 50 Flux Difference (A l) %

Figure 3 Axial Flux Difference Acceptable Operation Limits as a function of Rated Thermal Power (RAOC)

Unit I Cycle l5 WATTS BAR Page 8 of l0 Revision 1

Table A.l RAOC W(Z) Surveillance Factors IIax \\'(z) \Iax \\'(z) \Iar \\I(z) \Ias \Y(z) Nlax \\'(z) Ilax 11I(z) NIax \Y(z) Ilax \1'(z) \Iax \\I(z) at 150 at 150 at 150 at 2000 at 4000 at 8000 at 12000 at 16000 at 18000 Height

( ft)

}I\ITDAITT' \I\\'DAITIT \I\\'DAITTT \,I\\'DI}TTI.I }T\\DAITT" NI\\lDAITT' NI\\'Dr\ITLr }t\\.DAITTT Nt\\.DI}TTTI (30% (7s% (1009'0 (lo0% (r00% (100% (100% (100% (r00%

Porver) Porver) Polver) Polyer') Power) Power) Power) Pow,er) Pon'er) 07.1 t.i)000 I 0000 1.0000 1.0000 1.0000 1 0000 L0000 1 0000 I 0000 I 8713 I 000r) 1.0.000 L0000 I 0000 1.0000 I 00{)0 I.0000 1.0000 I 0t)00 1 6720 I 0000 I 00r)0 I 0000 1.0000 1 000t) t 000r) 1.0000 1.0000 I "0000 L-1r08 L0000 1.0000 I 0000 t 0000 L000(l 1.0000 1.0()0r) 1.0000 I.0000 1.169 I 0000 1.0000 i 0000 1 0000 1 0000 I 0000 I t)000 1 0000 1 0000 1.068-1 1.0000 r 0000 1.0000 1.0000 1.000t) i 0000 I 0000 I 0000 1 0000 0 8671 1.3719 I 356.1 1.2i6 t.l5-t 1 I 2t86 t.1040 I 924 I 75-l I 7-r6 0 66-i8 l -1(106 t 33.tl I2t-14 I 2;i.99 l.l l7q LlOl _1 i 917 I 7t4 65.1 0.+646 I -l-[7 115 I 2081 l 2417 l.l t4f) 96t I 877 I 708 t 98 0.16-l-1 l.-1201 r ?9-t5 l 2tl07 1237.x 1 1094 891 I I l_l I 619 5.17 fi 06l t t.30ll t l69q 94-1 l .l_1 17 I 10_16 I .S l6 I 11 I 561 48_1 e 8608 l.l87e 1 l-169 I 9ll I .21-l7 I 9,s ?10 I 705 I 517 I 47-l 9.6-i9(r t.l7 I 7 I 9l l :180 I 876 I 6.{ I 6l I 509 58 e.-158-l 5 I l9r t I 89-5 l.l I CrS I s67 I 6 I s6 I 590 I fi60 9 l57l t 116l I 1777 I 9-l t tIle I 87Cr I 6,59 I 57i I 6,17 I I 9.055e I.t 186 I I 667 I 970 I t08l I B7 I 6-5-t I 585 I 66.1 I 785 8 85.ltr I . 19.t7 I I _s37 I 960 I 1998 I 846 I 659 I 59r I j17 I 8_r0 8.651"1 r.17t.1 I i43e I 95.+ I le-16 t 8l-l i 704 I 644 I 8lr I 881 8,45t1 1.1579 L 1.136 1 2020 I . l9.q_l 878 I 771 I 74e I 949 I 205 8 :509 t.141_l i . 1.151 1.2083 1.202-s 89.q I 810 I 868 I 208 I 2207 8.0-197 I r17 t I l4-\0 L2 r 2-5 l :041 8e8 I 8+l I 9fr9 I tt04 l.l-l-1 7.8484 L 1095 I 14.15 I lt4e 1 2046 I 871 857 1.1046 t 2297 1.24,16 7,6+72 1.0916 I . l'1-ll I 1-s3 I 20-rl I 8.r8 850 l.: 102 l.ti66 1.2514 7.-+459 1.0795 l t4ll I .2138 1.1001 I 866 815 t.: I_15 l.l4 t0 1 1565 7.14-17 1.0666 I i -t8-s I 106 I 9-s-l I 869 I 776 I II47 l.t4l0 i.2591 7 043 1.0561 I lll9 L20-52 I 894 I 84e I 756 I 137 I 42fi 1,259 r 6 8411 I.0-t97 I I lt)r{ 1.2009 I 848 I 817 I 751 I 2108 I.tt99 1.2567 6.6-+ l0 l.ru7l L l-105 I 99t) I 817 I 77 I 7tl r t06_3 l 2r5l l.2,sl0 6 "1i97 L0.1-+4 L llS I 949 166 I 7ll I 691 1.2003 l.lle0 l.?4,s6 61,18 L0"l)) L 1t58 I 89,3 l. 696 (}+l I 6.10 9t5 1 2207 l.l37l 6.0173 1.0_196 l l]19 I 816 6l-t I 587 I 8I I 83 I 2105 I 2164 8-160 I 0388 l. I 190 I 74tl 578 1

-1 I _il9 I 7t8 982 L21-17 6.1"18 1 0400 II 75 t. 684 I 520 1. -t66 I Jt9-t I 601 846 I 99 5 .$t-5 I,0417 I I l6l I 6-13 I 4?4 I 431 I 469 I 5_3.1 719 847 5 trls 1.045_l t ll-58 I 5 I 446 .ll8 4.19 I 515 I 6t9 749 5.t)-t l0 L0-s07 I l7l I 56.{ I 4,r I I r11

+_1 ',

4-56 I 5t0 I 612 72{)

-1 8198 I "057_1 I I t89 515 I 418 I .115 476 I 504 I 610 I 71-t 4 6186 1.06-j8 l ttge I 50t) I 399 I .l3l I .+8 I 500 I 594 I 688 4".t]73 I.070: I Il0-l I -15e I 37-1 I +10 I -189 I 488 I 7l I 6_s4 4:t6l t.0766 I I t99 I 4ll ,14 I 40-1 I 48 t. 470 I -54.1 I 6ll 4.01.t8 t.0818 Lll93 I -j60 I -106 I l8-l I 481 I "159 I 5ll I -5(r3 8ll6 l.t)88tr l. I I77 I .l0t) 168 I 154 I 468 I 461 I 468 I 504

-1 62t,l 1.0951 tl 70 I 247 I ?7 ils I 461 I 507 4_17 I 4-56 l4llt t 1060 I l20i I 2-l,l 184 _i4!) I 496 I 56.r I 449 I 448 l lt9e LIl9l I l2-58 I 241 te3 38-5 I 550 I 620 469 I 454 1.0186 L l3e5 I tiE I 12l I t8l l. ,+75 I 6-17 I 685 521 I 504 8174 l. I69e t. I 5e9 I 497 I -lfr9 I 6-11 I 795 I 802 I 65_l 6_16 2,616t LtOr 7 1. 1 836 l. 683 I 669 I 85-l I .t0l l I  !)71 I 8.1-l t 828 1.il.19 l.t-l4l t 2067 t 870 I 873 I t060 I 2220 I 2128 L202-l L2008 l lI-17 I.:67-s 1.2-108 L2057 t 207'v 1.226{ 1.2.l]4 I .1281 I Ile8 LI t84 I0ll4 l.l02l 1.2547 1.224t) t.2271 I 146l l.t6t2 I.:427 I 2367 I.2-l-54 t,8l t I "

jj79 1.2781 t,2-+17 I 1469 l l6+e t.ts09 1.256-l l.t-518 l 2-5l6 I 6099 I _174 I 100.1 1 1.58 I 650 I "281-1 Ll98 l t t6e2 L?677 1.1666 L.t08r l.4l t0 I.3110 t.27?6 I 1808 I 2e74 1 3130 I 816 I 2805 I.2795 1.1075 1.446(r i.-3-18-j I 18-1,1 1 2913 I 087 l.-i239 I.2904 I 894 1.288s I 00Cr 1.0000 1.0000 1 000t1 l.000rl I 0000 l.t)000 l,0000 I 00fx) L0000 0.8050 Lt1000 l.00fi0 1.0000 I 000n L0000 1.0000 r.0000 t 0000 L0000 0.(r0i7 1.0000 1.0(J00 1.0000 1 0000 1.0000 1.0000 r.0000 I 0000 1.0000 0 4015 i "0000 1.0000 l.00fit) I 0000 I 0000 1.0000 I.0000 t.0000 L0000 0.20r 1 I.0000 L00t)0 1.0000 1.0000 1 0000 L0000 r.0000 1.0000 t.0000 0.0000 I t)000 l.0rl00 I 0000 I 0000 I 0000 I.0000 1.0000 1 0000 L0000 Unit I Cycle l5 WATTS BAR Page 9 of 10 Revision I

Table A.2 Fq*(Z) Penalty Factor Fq*(z)

Core Burnup Penalty MVyD/IUTU) Factor All Burnups I,0200 Note:

l. The Penalty Factor, which is applied to Fq*(4 for compliance with Surveillance Requirement 3.2.1.2, is the maximum factor by which Fo*(Z) is expected to incr@se per 3l Effective Full Power Days (EFPD) starting from the burnup at which the fqwlZ; was determined.

Unit I Cycle 15 WATTS BAR Page l0 of l0 Revision I

ENCLOSURE 2 Watts Bar Nuclear Plant, Un,t2, Cycle 2 Gore Operating Limits Report Revision 1 January 201 8

QA Rscord ul8 190t 18 801 WATTS BAR NUCLEAR PI.AiIT, UNIT 2, CYCLE 2 CORE OPERATING LIiIITS REPORT RwEhn I Jentnry 2018 W. AndrauwhfrE Rihhle, nlrR Fuat Englncerlng Gz/z'/g Added st and 3,1.7 per NRC Cornmllrnent f lglg0rcal Unlt 2 Cycle 2 WATTSBAR PagB I of lo Revisim I

I.O CORE OPERATING LIMITS REPORT This Core Operating Limits Report (COLR) for Watts Bar Unit 2 Cycle 2 has been prepared in accordance with the requirements of the Technical Specification (TS) 5.9.5.

The Technical Specifications affected by this report are listed below:

3.1.4 Moderator Temperature Coefficient (MTC) 3.1.5 Rod Group Alignment Limits 3.1.6 Shutdown Bank Insertion Limits 3.1.7 Control Bank Insertion Limits 3.2.1 Heat Flux Hot Channel Factor (Fq(Z))

3.2.2 Nuclear Enthalpy Rise Hot Channel Factor (F**)

3.2.3 Axial Flux Difference (AFD) 3.9.1 BoronConcentration 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 the Technical Specifications Section 5.9.5.

The following abbreviations are used in this section:

BOL Beginning of Cycle Life ARO All Rods Out HZP Hot Zero Thermal Power EOL End of Cycle Life RTP Rated Thermal Power Unit 2 Cycle 2 WATTS BAR Page 2 of l0 Revision I

2.1 MODERATOR TEMPERATURE COEFFTCTENT - MTC (LCO 3.1.4) 2.1.1 The MTC limits are:

The ARO/HZP - MTC shall be less positive than or equal to 0 Ak/l/oF (upper limit).

With the measured BOL/ARO/HZP - MTC more positive than -2.25 x l0-s Ak&/oF (as-measured MTC limit), establish control rod withdrawal limits to ensure the MTC remains less positive than or equal to 0 Ak/ld"F (upper limit) for all times in core life.

The EOL/ARO/RTP - MTC shall be less negative than or equal to 4.50 x 104 Ak/ldoF (lower limit).

2.1.2 The 300 ppm surveillance limit is:

The measur.ed 300 ppm /ARO/RTP-MTC should be less negative than or equal to

-3.65 x 104 Ak/ldoF.

2.1.3 The 60 ppm surveillance limit is:

The measured 60 ppm /ARO/RTP-MTC should be less negative than or equal to

-4.1g x 104 ak/v"F.

2.2 SHUTDOWN MARGIN - SDM (LCO 3.1.5,3.1.6, 3.1.7) 2.2.1 For TS 3.1.5, SDM shall be Z 1.6% Ak&

in MODE I and MODE 2.

2.2.2 For TS 3.1.6, SDM shall be 2 1.6% Ak&

in MODE I and MODE 2.

2.2.3 For TS 3.1.7, SDM shall be 2 1.6% Ak&

inMODE I andMODE2withhr> 1.0.

2.3 SHUTDOWN BAI\TKINSERTION LIMITS (LCO 3.1.6) 2.3.1 The shutdown banks shall be withdrawn to a position greater than or equal to 225 steps withdrawn.

2.4 CONTROL BAI\IK INSERTION LII\{ITS (LCO 3.1.7) 2.4.1 The control banls are fully withdrawn or shall be limited in physical insertion as shown in Figure l.

2.4.2Each control bank shall be considered fully withdrawn from the core at greater than or equal to 225 steps.

2.4.3 The control banks shall be operated in sequence by withdrawal of Bank A, Bank B, Bank C, and Bank D. The control banks shall be sequenced in reverse order upon insertion.

Unit2 Cycle 2 WATTS BAR Page 3 of 10 Revision I

2.4.4Each control bank not fully withdrawn from the core shall be operated with the following overlap as a function of park position.

Park Position (steps) Bank overlap (steps) Bank Difference (steps) 225 109 t l6 226 ll0 I l6 227 nl ll6 228 lt2 ll6 229 l3 l6 na t4 t6 23t l5 t6 2.5 HEAT FLUX HOT CHANI\IEL FACTOR -Fq(Z) (tCO 3.2.1)

Fq(Z) < [CFQ/ P]

  • K(Z) for P > 0.5 Fq(z) < [CFQ/ 0.5J
  • K(Z) for P < 0.5 Where P - Thermal Power lRated rhermal Power 2.5.1 CFQ:2.50 2.5.2 K(Z) is provided in Figure 2.

z.s.: ro*14  : Fo"(z)

  • W(Z)lp for p > 0.5 Fo*(Z): Fo"(Z)
  • W(2y0.5 for P < 0.5 where: w(Q values are provided in Table A.l. The table provides suflicient inforrnation to determine w(Z) versus core height for all cycle burnups.

2.5.4Partpower W(Z) values are only required to be used when the part power surveillance is perfomred using the fixed incore detector system.

Z.S.S f o*121Penalty Factor The fowlz; penalty factor is provided in Table A.2.

Unit2 Cycle 2 WATTS BAR Page 4 of l0 Revision I

2.6 NUCLEAR ENTHALPY RISE HOT CHAI\INEL FACTOR - F*N (tCO 3'.2)

F**s F*** * ( I +PF + ( l-P))

where P = Therrral Power/ Rated Thermal Power F*** = 1.65 forMA-2 fuel, and PF - 0.3 2.7 AXIAL FLTIXIIIFFERENCE - AFD (LCO 3.2"3) 2.7 .l The AFD limits for Cycle 2 are provided in Figure 3.

2.8 REFUELINGBORONCONCBNTRATION (LCO3.9.1) 2.8. t The refueling boron concentration shall be 2 2000 ppm.

Unit 2 Cycle 2 WATTS BAR Page 5 of l0 Revision I

250 (ALL POWERS, 225]l 225 (o.tg7, 225',) (0.703, 225ll 200 BANK B z 175 3 (0.0, 190) oc o

I ts 3 150 Itt a.

UJ F BANK 9 C 2

o L25 F

U; o

a.

o.

UI F 100 ln zv o

o 75 o

G, (0.0, 64)

(0.227 , o) 0.0 o.2 0.4 0.5 0.8 1.0 FRACTION OF RATED THERMAT POWER Figure I Control Bank Insertion Limits Versus Thermal power Four Loop Operation Fully withdrawn region shall be the condition where shutdown and control banks are at a position within the interval of >225 and<231steps withdrawn.

Unit 2 Cycle 2 WATTS BAR Page 6 of 10 Revision 1

L,2 1.1 0.9 0.8 L

o o.

c, ll.

0.6 LOre Hetgnt K(z)

=,

o e(E 0.000 L.00( )

tr 6.000 L.00( )

t o

o.s L2.000 1.00 )

z 0.4 0.3 0.2 0.1 10 LL 12 Core Height (feet)

Figure 2 K(Z) - Normalized Fq(Z) as a Function of Core Height Unit 2 Cycle 2 WATTS BAR Page 7 of l0 Revision I

124 110 100 I

b- l- r,

\

10

\I 90 Acceptable Operation t

\

F 80 racceptabNel- -. Unaccepta, Operation I \ I b

-tI I Ooeratiol o

= \

o- 70 6 \

E o

Foo I \

lC o I I E,

r.-

o 50 I \

be @

40 30 20 10

-50 40 -30 -2A -10 0 10 20 30 40 50 Flux Difference (A l) %

Figure 3 Axial Flux Difference Acceptable Operation Limits as a function of Rated Thermal Power (RAOC)

Unit 2 Cycle 2 WATTS BAR Page 8 of l0 Revision 1

Table A.l RAOC W(Z) Suryeillance Factors Heieht (ft \Iax \\'(z Nlar \\:(z \Iax \\'(z llar \\r(z \[ar !1-(z \Iax \\'(z \Iar \\'(z \Iax \\'{z at 150 at 150 at 150 at 2000 at 6000 at 10000 at 14000 at 16000 NI\\'D,&IT[' NI\\IDAITI.] NI\\'D/NITII \T\VD/},TTT: \I\\'D/}tTI.' }T\I'DAITTI NI\\'DA[TTT II\YD^mrr (30o/o Pon'er (75o/o Power) (I00% Porver) (100% Poryer) fiD0oh Power) (l00o/o Power) (100% Pou'er) (100% Pon'er) 12.0720 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 11.8708 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 11.6696 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 11.468{ 1.0000 r.0000 1.0000 1.0000 1.0000 1.000t) 1.0000 1.0000 tL.2672 1.0000 1,0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 r1.0660 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 10.8648 1.4084 1.4571 1.3286 1.3235 1.3275 1.1820 1.1574 l.r53l 10.66J6 1.3886 1.4287 l.t22l l.Jl85 1.3127 1.t77i 1.1526 1.1487 10.4624 1.3626 1.J906 1.J150 1.3166 1.2897 1.17r8 1.1469 1.r435 10.2612 t.3419 1.3633 1.3060 t.Jl l4 1.2662 1.165r 1.1,105 1.1378 10.0600 r.3171 1.3310 r.2952 1.3032 1.2594 1.1574 1.13t2 r.1363 9.8588 1.2934 1,3014 1.2819 I.2941 1.2318 1.1495 1.1255 1.r340 9.6576 1.2771 r.2876 1.2822 1.284-l 1.22J0 t.t1t7 t.l17J l.l31l 9.4564 1.2529 1.26J6 t.2716 t.2128 t.2229 1.1387 1.1180 t.1292 9.2552 r.2254 1.2J44 1.2653 1.25e9 l.22ll 1.1456 r.126{ 1.1386 9.05{0 1.2019 1.2085 1.2586 1.2507 1.2188 r.r508 1.1370 l.l,165 8.8S28 1.1866 r.21JJ 1.2640 1.2580 1.2t26 1.1532 1.1444 l. I 529 8.6516 1.1766 t.2t7t 1.2719 1.2614 1.2lJl 1.r557 1.t584 1.1655 8.4504 1.r639 1.2139 1.2763 1.2628 t.2261 l.t62r r.1803 1.r847 8.2492 1.1554 1.1989 1.2784 1.2662 r.2317 1.r704 1.1991 r.2052 8.0480 1.1440 1.2r13 1.2858 1.2751 1.2461 1.r778 1.2156 1.2244 7.8468 1.1366 1.2222 1.2939 1.2809 1.2525 1.1881 t.22e7 1.24t0 7.6456 1.1296 1.2185 1.2967 1.2824 1.2547 1.1955 1.2,105 1.2542 7.4444 1.1238 t.2126 1.2968 l.28lJ 1.2548 1.2012 1.2494 1.2654 7.2432 1.1152 L2474 1.2936 1.2771) 1.2517 1.2042 1.2549 1.2729 7.0420 1.1046 1.205s 1.2883 1.2706 1.2465 1.2053 1.2577 1.2775 6.8408 1.095J 1.1977 1.2801 1.2616 t.2392 1.204J 1.2581 1.2794 6.6396 1.0883 1.1873 t-2687 1.2500 1.2298 1.2015 1.2561 r.2785 6.4t84 l.08,lJ l. I 782 1.256r 1.2i70 1.2189 1.1976 1.2523 1.2760 6.2372 1.0678 1.1667 r.2420 1.2227 r.2065 1.1922 1.2464 1.2709 6.0J60 1.0577 l.l5.l3 1.2259 1.2066 1.1924 1.1851 1.238J 1.263.1 5.8J48 1.0505 1.1407 1.207s 1.1885 1.1768 1.1765 r.2280 1.2535 5.6J36 1.0458 1.1274 1.1880 1.1695 1.1602 1.1667 1.2157 1.2414 5.4J24 1.0318 1.1132 r.1695 1.1537 r.1485 1.1599 1.2051 1.2294 5.2312 1.0266 1.1062 1.1585 t.1462 l.l4rJ 1.1591 1.2067 r.2304 5.0300 1.0316 1.1052 1.1528 1.1403 1.1J82 1.1599 1.2081 1.2J0r 4.8288 1.0351 1.1029 1.r455 l.1JJ4 1.1372 1.16J6 1.2083 r.2281 4.6216 1.0375 1.1001 1.1376 1.1251 1.135,1 1.1660 1.2079 1.224,1 4.4264 1.0J9I 1.0962 r.1288 1.1173 l.lt29 1.1677 1.206.1 l.2l8e 4.2252 1.0397 1.0907 1.1I90 1.1081 1.1297 1.1684 r.2035 1.2t27 4.0240 1.0455 1.0861 r.1084 1.0982 1.1257 1.1683 1.1993 1.2060 3.8228 1.0506 1.081r 1.0973 1.0875 1.1210 t.1674 1.1936 1.1975 3.62r6 1.0439 1.4727 1.0860 1.0789 t.ll59 l.l65l 1.1862 1.1870 3.4204 r.0456 r.0669 1.0758 1.0775 r.1109 l.r682 1.1844 1.1797 3.2192 1.0556 1.066r t.069E 1.0174 l.lllr 1.r71{ l.r85l r.r760 3.0180 1.0666 1.0694 1.0685 1.079e 1.1150 1.1777 1.t882 1.r773 2.8168 1.0865 1.0820 1.0766 1.0958 t.1296 1.1880 1.2031 1.1943 2.6156 l.ll58 r.1038 1.0937 1.1178 1.1542 1.203s 1.2225 1.2124 2.4144 1.1444 1.1246 l.l0e7 1.1J87 1.t777 t.2252 1.2405 r.230J 2.2132 1.1803 t.t476 Ll26t 1.1604 r.2020 1.2484 1.2586 r.2.t82 2.0120 1.2165 1.r715 l.r12e 1.1824 1.2265 1.27fi 1.27s8 1.2652 1.8r08 1.2460 1.r940 1.r596 1.2043 1.2505 1.2927 1.29t9 1.2811 1.6096 1.2780 t.2149 1.175? t.224e 1.2732 1.3130 1.3072 1.2962 1.4084 1.3122 1.2J44 1.1897 1.2439 1.2941 1.JJr8 1.3219 1.3108 1.2072 l.J4Jl 1.2528 r.20J0 1.261.1 1.J1J2 r.J488 1.3355 1.J246 1.0060 1.0000 1.0000 1.0000 r.0000 1.0000 1.0000 1.0000 1.0000 0.8048 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 0.6036 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 0.4024 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 r.0000 r.0000 0.2012 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 r.0000 0.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 Unit 2 Cycle 2 WATTS BAR Page 9 of 10 Revision I

Table A.2 Fq*(Z) Penalty Factor Burnup Penalty (MWD/I\,ITU) Factor 150 t.0237 300 1.0244 45t 1.0250 60 I t.0254 751 t.0253 902 t.0248 I 052 l.an7 1203 t.0221 I 353 1.0201 I 503 1.0200 Lt7 t5 1.0200 11863 1.0203 t20t2 t.0206 t2160 I .0210 I 2308 1.0209 12456 1.0205 t2605 I .0201 12753 1.0200 Note:

1. The Penalty Factor, which is applied to fow1zl for compliance with Surveillance Requirement 3.2.1.2, is the maximum factor by which Fq*(Z) is expected to increase per 3l Effective Full power Days (EFPD) starting from the bumup at which the rowlz; was determined.

Unit 2 Cycle 2 WATTS BAR Page l0 of 10 Revision I

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