ML061010114

E-mail from D. Smith of Entergy to J. Noggle of USNRC, Regarding Mass Balance: Boron SFP Loss Estimate

ML061010114
Person / Time
Site:	Indian Point
Issue date:	10/17/2005
From:	Danni Smith Entergy Nuclear Operations
To:	Noggle J Division of Reactor Safety I
References
FOIA/PA-2006-0019
Download: ML061010114 (5)

Text

ames iNoggle - mass balance: boron : t-rt LOSS tsiimaie Flage 1.

From: tSmnjtK, David" <dsmith4©entergy.com>

To: "'jdn©nrc.gov"' <jdn@nrc.gov>

Date: 10/17/05 12:12PM

Subject:

Mass Balance: Boron SFP Loss Estimate Jim, here is what I have as of today:

<<Fitter._LG.xis>>

About four more recent data points are included. No fuel/rack displacement volume is considered. Total boron loss over the cycle (about 7 ppm) is less than gaussian standard deviation of the pool boron measurements (18.7 ppm). Poisson S.D. would be about 50 ppm.

CC: "Jones, T. R." <tjones2@entergy.com>

InaccordanceInwithis record intor1Tattofl he was delete Freedoml otlfmOatM IActmto II-,)

-0.02020 slope y-intercept S.D. (ppm)

-0.02020 2407.42131 18.7 x Y S.E. of Mean

1. 47 47 (xNy,) (xI)2 2.7 1 0 2424 0 0 2 2 2410 4820 4 3 6 2395 14370 36 Unit 2 SFP Boron, Cycle 17 4 13 2392 31096 169 5 20 2456 49120 400 2500 -Ax 6 27 2396 64692 729 7 42 2413 101346 1764 2450 W y~

8 48 2390 114720 2304 2400-9 55 2370 130350 3025 2350 10 62 2452 152024 3844 2 2300-11 69 2394 165186 4761 12 76 2398 182248 5776 E 2250-13 83 2392 198536 6889 at 2200 .A 14 90 2377 213930 8100 2150 -If i 15 97 2406 233382 9409 2100 - li 16 104 2407 250328 10816 2050 or 17 111 2416 268176 12321 18 118 2398 282964 13924 19 125 2394 299250 15625 20 132 2400 316800 17424 Date (0=cycle start) 21 139 2406 334434 19321 22 146 2394 349524 21316 23 153 2409 368577 23409 24 160 2432 389120 25600 [loss]

25 167 2393 399631 27889 -2.6 gpd 26 174 2404 418296 30276 27 181 2417 437477 32761 fractional loss per day 28 188 2399 451012 35344 -8.4E-06 29 195 2399 467805 38025 30 202 2411 487022 40804 31 209 2464 514976 43681 32 216 2387 515592 46656 33 223 2401 535423 49729 34 230 2420 556600 52900 dimensions 35 237 2390 566430 56169 (feet) 36 244 2411 588284 59536 37 251 2412 605412 63001 38 258 2395 617910 66564 39 265 2389 633085 70225 40 272 2403 653616 73984 41 42 43 279 286 293 2392 2399 2379 667368 686114 697047 77841 81796 85849 iz-'A

.Ila YJv 44 296 2387 706552 87616 45 300 2403 720900 90000 46 307 2398 736186 94249 47 314 2424 761136 98596 48 0 0 49 0 0 50 0 0 51 0 0 52 0 0 53 0 0 54 0 0 55 0 0 56 0 0

• 57 0 0 58 0 0 w 59 0 0 60 0 0 61 0 0 62 0 0 63 0 0 64 0 0 65 0 0 66 0 0 67 0 0 68 0 0 69 0 0 70 0 0 71 0 0 72 0 0 73 0 0 74 0 0 75 0 0 76 0 0 77 0 0 78 0 0 79 0 0 80 0 0 81 0 0 82 0 0 83 0 0 84 0 0 85 0 0 86 0 0 87 0 0 88 0 0 89 0 0 90 0 0 91 0 0 92 0 0 93 0 0 94 0 0 95 0 0 96 0 0 97 0 0 98 0 0 99 0 0 100 0 0 101 0 0 102 0 0 103 0 0 104 0 0 105 0 0 106 0 0 107 0 0 108 0 0 109 0 0 110 0 0 111 0 0 112 0 0 113 0 0 114 0 0 115 0 0 116 0 0

117 0 118 0

.119 0 120 0 121 0 122 0 123 0 124 0 125 0 126 0 127 0 128 0 129 0 130 0 131 0 132 0 133 0 134 0 135 0 136 0 137 0 138 0 139 0 140 0 141 0 142 0 143 0 144 0 145 0 146 0 147 0 148 0 149 0 150 0 151 0 152 0 153 0 154 0 155 0 156 0 157 0 158 0 159 0 160 0 161 0 162 0 163 0 164 0 165 0 166 0 167 0 168 0 169 0 170 0 171 0 172 0 173 0 174 0 175 0 176 0

177 0 0 178 0 0 r179 0 0 180 0 0 181 0 0 182 0 0 183 0 0 184 0 0 185 0 0 186 0 0 187 0 0 188 0 0 189 0 0 190 0 0 191 0 0 192 0 0 193 0 0 194 0 0 195 0 0 196 0 0 197 0 0 198 0 0 199 0 0 200 0 0 201 0 0 sumxY sumy1 7465 112998 17938867 1610457 x-bar y-bar sums:

159 2404