ML020430047

Core Operating Limits Report

ML020430047
Person / Time
Site:	Cook
Issue date:	02/01/2002
From:	Greenlee S Indiana Michigan Power Co
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
AEP:NRC:2691
Download: ML020430047 (11)

Text

Indiana Michigan Power Company 500 Circle Drive Buchanan, MI 49107 1373 INDIANA MICHIGAN POWER February 1, 2002 AEP:NRC:2691 10 CFR 50.4 Docket No.: 50-316 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Mail Stop O-Pl-17 Washington, DC 20555-0001 Donald C. Cook Nuclear Plant Unit 2 CORE OPERATING LIMITS REPORT Indiana Michigan Power Company, the licensee for Donald C. Cook Nuclear Plant Unit 2, is submitting the Core Operating Limits Report (COLR) for Unit 2, Cycle 13, in accordance with Technical Specification 6.9.1.9.4.

The Unit 2 Cycle 13 COLR is provided as an attachment to this letter.

No new commitments are made in this submittal.

Should you have any questions, please contact Mr. Gordon P. Arent, Manager of Regulatory Affairs, at (616) 697-5553.

Sincerely, Scot A. Greenlee Director of Nuclear Technical Services attachment

/jen c: K. D. Curry J. E. Dyer MDEQ - DW & RPD NRC Resident Inspector R. Whale

, oC)

Donald C. Cook Nuclear Plant Unit 2 Cycle 13 Core Operating Limits Report Revision 0

COLR for DONALD C. COOK NUCLEAR PLANT UNIT 2 CYCLE 13 - JANUARY 2002 1.0 CORE OPERATING LIMITS REPORT This Core Operating Limits Report for the Donald C. Cook Nuclear Plant Unit 2 Cycle 13 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:

3/4.1.1.4 Moderator Temperature Coefficient (MTC) 3/4.1.3.1 Movable Control Assemblies Group Height 3/4.1.3.4 Rod Drop Time 3/4.1.3.5 Shutdown Rod Insertion Limit 3/4.1.3.6 Control Rod Insertion Limits 3/4.2.1 Axial Flux Difference (AFD) 3/4.2.2 Heat Flux Hot Channel Factor (FQ(Z))

3/4.2.3 Nuclear Enthalpy Hot Channel Factor - (Fj) 3/4.2.6 Allowable Power Level (APL) 1 of 9

COLR for DONALD C. COOK NUCLEAR PLANT UNIT 2 CYCLE 13 - JANUARY 2002 2.0 OPERATING LIMITS The cycle-specific parameter limits 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 Temperature Coefficient (Technical Specification 3/4.1.1.4) 2.1.1 The Moderator Temperature Coefficient (MTC) limits are:

The BOL/ARO-MTC shall be less positive than or equal to the value given in Figure 1.

0 The EOL/ARO/RTP-MTC shall be less negative than or equal to -4. 1OE-4 Ak/k/ F.

This limit is based on a Tavg program with HFP vessel Tavg of 571 to 576 'F where:

ARO stands for All Rods Out BOL stands for Beginning of Cycle Life EOL stands for End of Cycle Life RTP stands for Rated Thermal Power HFP stands for Hot Full Thermal Power 2.1.2 The MTC Surveillance limit is:

The 300 ppm/ARO/RTP-MTC should be less negative or equal to -3.20E-4 Ak/k/°F at a HFP vessel Tvg of 571 to 576 °F 2.2 Rod Drop Time Drop Height (Specification 3/4.1.3.4) 2.2.1 All rods shall be dropped from 228 steps.

2.3 Shutdown Rod Insertion Limit (Specification 3/4.1.3.5) 2.3.1 The shutdown rods shall be withdrawn to at least 228 steps.

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COLR for DONALD C. COOK NUCLEAR PLANT UNIT 2 CYCLE 13- JANUARY 2002 2.4 Control Rod Insertion Limits (Specifications 3/4.1.3.6 and 3/4.1.3.1) 2.4.1 The control rod banks shall be limited in physical insertion as shown in Figure 2.

2.4.2 Successive Control Banks shall overlap by 100 steps. The sequence for Control Bank withdrawal shall be Control Bank A, Control Bank B, Control Bank C, and Control Bank D.

2.5 Axial Flux Difference (Specification 3/4.2.1) 2.5.1 The Allowable Operation Limits are provided in Figure 3.

2.5.2 The Axial Flux Difference (AFD) target band during base load operations is +3%,

-3% (not applicable for this cycle).

2.5.3 The AFD target band is +5%, -5% for a cycle average accumulated burnup Ž_0.0 MWD/MTU.

2.6 Heat Flux Hot Channel Factor - FQ(Z) (Specification 3.2.2)

FQ(Z) <CFQ for P > 0.5 P

• K(Z)

FQ(Z) 2

• CFQ

• K(Z) for P*< 0.5 THERMAL POWER where: P =RATED THERMAL POWER 2.6.1 CFQ = 2.335 2.6.2 K(Z) is provided in Figure 4 2.7 Nuclear Enthalpy Rise Hot Channel Factor - FNAH (Specification 3/4.2.3)

FNAH< CFH * (1 + P FAH *(l-P))

THERMAL POWER where: P =RATED THERMAL POWER 2.7.1 CFAH = 1.58 2.7.2 PFAH= 0.3 3 of 9

COLR for DONALD C. COOK NUCLEAR PLANT UNIT 2 CYCLE 13- JANUARY 2002 2.8 Allowable Power Level - APL (Specification 3.2.6)

APL = mi over Z for FQ (Z) CFQ

• K(Z) FP

• 100%

• V(Z)

• 2.8.1 V(Z) is provided in Table 1 for 5% AFD target band 2.8.2 CFQ and K(Z) are provided in COLR Sections 2.6.1 and 2.6.2, respectively 2.8.3 The following table shows Fp values which correspond to FQ margin decreases that are greater than 2% per 31 Effective Full Power Days (EFPD). These values shall be used to adjust APL as per Surveillance Requirement 4.2.6.2. A 1.02 penalty factor shall be used at all cycle burnups that are outside this range.

Cycle FP Burnup Penalty (MWD/MTU) Multiplier 475 1.0200 637 1.0292 800 1.0358 962 1.0400 1125 1.0425 1287 1.0405 1449 1.0383 1612 1.0357 1774 1.0327 1937 1.0293 2099 1.0255 2262 1.0213 2424 1.0200 The burnup range only covers where FP exceeds 1.02. Linear interpolation is adequate for intermediate cycle burnups.

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COLR for DONALD C. COOK NUCLEAR PLANT UNIT 2 CYCLE 13- JANUARY 2002 Figure 1 MODERATOR TEMPERATURE COEFFICIENT (MTC) LIMITS 1.0 0.5 U

0

-5 CO 0.0 0

I

-0.5

-1.0 0 10 20 30 40 50 60 70 80 90 100 Percent Rated Thermal Power 5 of 9

COLR for DONALD C. COOK NUCLEAR PLANT UNIT 2 CYCLE 13- JANUARY 2002 Figure 2 ROD BANK INSERTION LIMITS VERSUS THERMAL POWER FOUR-LOOP OPERATION 250 225 14 ý (52.9%, 228) 100 Step Overlap i 200 J(100%, 189) 175 ,/ 0, 0(D 150 0~

125

ýz "00, 0

a_

a 100 0

(9 cr-0 75 0

0---

(0%,02-)

50 25 0

0 10 20 30 40 50 60 70 80 90 1O0 POWER (% of Rated Thermal Power) 6 of 9

COLR for DONALD C. COOK NUCLEAR PLANT UNIT 2 CYCLE 13- JANUARY 2002 Figure 3 AXIAL FLUX DIFFERENCE LIMITS AS A FUNCTION OF RATED THERMAL POWER (RTP) 100 90 80 70 I

D 60 E

50 E 40 E

E 4

0 30 20 10 0

-50 -40 -30 -20 -10 0 10 20 30 40 50 FLUX DIFFERENCE (DELTA-I) 7 of 9

COLR for DONALD C. COOK NUCLEAR PLANT UNIT 2 CYCLE 13- JANUARY 2002 Figure 4 K(Z) - NORMALIZED FQ(Z) AS A FUNCTION OF CORE HEIGHT 1.2 0.0,1.0( '6.0,10) 1.0 (12.0, 0.925) 0.8 (D

z ILl u-I U0 0.6 0

z 0.4 0.2 0

0 2 4 6 8 10 12 CORE HEIGHT (FT) 8 of 9

COLR for DONALD C. COOK NUCLEAR PLANT UNIT 2 CYCLE 13- JANUARY 2002 Table 1 Donald C. Cook Unit 2 Cycle 13 IRI Mitigation LP, 3411 MWt, As-Burned Cycle 12 V(Z) Function PT HEIGHT BURNUP MWD/MTU (FT.) 150. 1000. 2000. 3000. 4000. 6000. 8000. 10000. 12000. 14000. 16000. 16670. 16795.

1 .0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 2 .2000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 3 .4000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 4 .6000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 5 .8000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 6 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 7 1.2000 1.1318 1.1217 1.1123 1.1058 1.1026 1.1062 1.1157 1.1239 1.1309 1.1382 1.1458 1.1483 1.1488 8 1.4000 1.1289 1.1198 1.1113 1.1055 1.1028 1.1063 1.1152 1.1228 1.1293 1.1361 11431 1.1454 1.1459 9 1.6000 1.1254 1.1174 1.1100 1.1050 1.1026 1.1061 1.1143 1.1213 1.1273 1.1333 1.1397 1.1419 1.1423 10 1.8000 1.1214 1.1146 1.1083 1.1040 1.1022 1.1055 1.1129 1.1193 1.1245 1.1298 1.1355 1.1374 1.1377 11 2.0000 1.1169 1.1113 1.1062 1.1028 1.1014 1.1045 1.1111 1.1166 1.1212 1.1256 1.1305 1.1321 1.1324 12 2.2000 1.1120 1.1077 1.1037 1.1011 1.1002 1.1032 1.1089 1.1136 1.1173 1.1208 1.1247 1.1261 1.1263 13 2.4000 1.1066 1.1036 1.1008 1.0992 1.0988 1.1016 1.1065 1.1102 1.1130 1.1154 1.1183 1.1193 1.1194 14 2.6000 1.1008 1.0990 1.0976 1.0968 1.0970 1.0998 1.1037 1.1065 1.1082 1.1094 1.1111 1.1118 1.1119 15 2.8000 1.0949 1.0944 1.0941 1.0942 1.0948 1.0976 1.1007 1.1026 1.1032 1.1029 1.1035 1.1037 1.1038 16 3.0000 1.0874 1.0885 1.0898 1.0911 1.0924 1.0953 1.0976 1.0984 1.0977 1.0958 1.0950 1.0948 1.0948 17 3.2000 1.0844 1.0858 1.0873 1.0887 1.0901 1.0926 1.0942 1.0941 1.0925 1.0894 1.0876 1.0870 1.0869 18 3.4000 1.0880 1.0878 1.0877 1.0878 1.0881 1.0894 1.0905 1.0904 1.0892 1.0871 1.0858 1.0854 1.0853 19 3.6000 1.0942 1.0919 1.0897 1.0880 1.0870 1.0870 1.0881 1.0892 1.0903 1.0916 1.0928 1.0932 1.0933 20 3.8000 1.1002 1.0959 1.0917 1.0885 1.0865 1.0858 1.0876 1.0901 1.0934 1.0977 1.1012 1.1024 1.1026 21 4.0000 1.1059 1.0995 1.0933 1.0886 1.0856 1.0849 1.0879 1.0920 1.0970 1.1034 1.1089 1.1106 1.1110 22 4.2000 1.1112 1.1029 1.0948 1.0888 1.0851 1.0846 1.0891 1.0946 1.1010 1.1090 1.1159 1.1182 1.1186 23 4.4000 1.1161 1.1063 1.0968 1.0898 1.0854 1.0848 1.0900 1.0966 1.1043 1.1141 1.1225 1.1252 1.1257 24 4.6000 1.1205 1.1095 1.0988 1.0908 1.0859 1.0850 1.0908 1.0982 1.1071 1.1186 1.1284 1.1315 1.1321 25 4.8000 1.1243 1.1122 1.1005 1.0918 1.0863 1.0851 1.0913 1.0995 1.1095 1.1225 1.1334 1.1370 1.1376 26 5.0000 1.1275 1.1144 1.1018 1.0924 1.0865 1.0853 1.0920 1.1009 1.1117 1.1257 1.1375 1.1413 1.1420 27 5.2000 1.1299 1.1160 1.1026 1.0926 1.0865 1.0855 1.0929 1.1024 1.1136 1.1281 1.1404 1.1443 1.1451 28 5.4000 1.1315 1.1170 1.1030 1.0925 1.0861 1.0853 1.0934 1.1033 1.1149 1.1296 1.1422 1.1463 1.1471 29 5.6000 1.1323 1.1173 1.1028 1.0920 1.0854 1.0849 1.0934 1.1036 1.1153 1.1301 1.1429 1.1470 1.1478 30 5.8000 1.1323 1.1168 1.1020 1.0910 1.0844 1.0840 1.0929 1.1034 1.1150 1.1296 1.1424 1.1465 1.1473 31 6.0000 1.1312 1.1157 1.1007 1.0896 1.0830 1.0828 1.0919 1.1024 1.1138 1.1281 1.1406 1.1447 1.1455 32 6.2000 1.1293 1.1137 1.0986 1.0875 1.0809 1.0810 1.0904 1.1007 1.1118 1.1254 1.1376 1.1415 1.1423 33 6.4000 1.1263 1.1108 1.0959 1.0850 1.0785 1.0788 1.0882 1.0982 1.1088 1.1217 1.1333 1.1370 1.1377 34 6.6000 1.1219 1.1078 1.0943 1.0843 1.0781 1.0775 1.0852 1.0943 1.1044 1.1172 1.1283 1.1319 1.1326 35 6.8000 1.1202 1.1070 1.0941 1.0843 1.0782 1.0763 1.0825 1.0909 1.1014 1.1151 1.1266 1.1303 1.1310 36 7.0000 1.1200 1.1072 1.0947 1.0852 1.0790 1.0766 1.0819 1.0899 1.1002 1.1140 1.1254 1.1290 1.1297 37 7.2000 1.1202 1.1078 1.0957 1.0865 1.0805 1.0779 1.0828 1.0899 1.0991 1.1115 1.1216 1.1249 1.1255 38 7.4000 1.1194 1.1074 1.0958 1.0869 1.0812 1.0793 1.0842 1.0906 1.0983 1.1084 1.1168 1.1196 1.1201 39 7.6000 1.1178 1.1063 1.0950 1.0866 1.0813 1.0802 1.0855 1.0915 1.0979 1.1060 1.1132 1.1155 1.1159 40 7.8000 1.1154 1.1044 1.0936 1.0857 1.0809 1 .0806 1.0864 1.0918 1.0970 1.1031 1.1089 1.1108 1.1111 41 8.0000 1.1121 1.1016 1.0914 1.0839 1.0796 1.0804 1.0866 1.0917 1.0956 1.0997 1.1041 1.1055 1.1058 42 8.2000 1.1081 1.0981 1.0885 1.0816 1.0779 1.0795 1.0862 1.0908 1.0933 1.0953 1.0982 1.0993 1.0994 43 8.4000 1.1031 1.0946 1.0864 1.0805 1.0774 1.0792 1.0852 1.0887 1.0899 1.0902 1,0917 1.0923 1.0924 44 8.6000 1.0968 1.0911 1.0857 1.0819 1.0800 1.0816 1.0862 1.0896 1.0917 1.0934 1.0958 1.0966 1.0967 45 8.8000 1.0945 1.0910 1.0878 1.0857 1.0847 1.0864 1.0902 1.0934 1.0962 1.0990 1.1019 1.1029 1.1031 46 9.0000 1.0956 1.0934 1.0914 1.0901 1.0898 1.0917 1.0952 1.0982 1.1007 1.1032 1.1058 1.1067 1.1068 47 9.2000 1.1018 1.0992 1.0967 1.0952 1.0946 1.0963 1.0998 1.1026 1.1049 1.1071 1.1095 1.1103 1.1105 48 9.4000 1.1080 1.1049 1.1020 1.1001 1.0992 1.1008 1.1042 1.1069 1.1090 1.1110 1.1133 1.1141 1.1142 49 9.6000 1.1139 1.1103 1.1070 1.1047 1.1036 1.1048 1.1081 1.1109 1.1133 1.1158 1.1185 1.1193 1.1195 50 9.8000 1.1194 1.1155 1.1118 1.1092 1.1079 1.1088 1.1121 1.1151 1.1179 1.1210 1.1240 1.1250 1.1252 51 10.000 1.1244 1.1203 1.1163 1.1135 1.1120 1.1129 1.1162 1.1194 1.1223 1.1257 1.1289 1.1299 1.1301 52 10.200 1.1289 1.1246 1.1204 1.1175 1.1159 1.1166 1.1200 1.1231 1.1262 1.1296 1.1329 1.1340 1.1342 53 10.4000 1.1328 1.1283 1.1241 1.1210 1.1193 1.1199 1.1231 1.1263 1.1294 1.1329 1.1363 1.1374 1.1376 54 10.6000 1.1359 1.1314 1.1270 1.1239 1.1221 1.1225 1.1256 1.1287 1.1318 1.1354 1.1387 1.1398 1.1400 55 10.8000 1.1385 1.1339 1.1295 1.1263 1.1244 1.1247 1.1276 1.1306 1.1336 1.1372 1.1405 1.1416 1.1418 56 11.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 57 11.2000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 58 11.4000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 59 11.6000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 60 11.8000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 61 12.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 9 of 9