ML20155F977

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Rev 1 to Holtec Rept HI-982056, Reanalysis of Crystal River Pool B Spent Fuel Storage Racks with Boraflex Degradation
ML20155F977
Person / Time
Site: Crystal River Duke Energy icon.png
Issue date: 10/20/1998
From: Sarah Turner
HOLTEC INTERNATIONAL
To:
Shared Package
ML20155F952 List:
References
CON-80855 F-98-0017-R00, F-98-17-R, HI-982056, HI-982056-R01, HI-982056-R1, NUDOCS 9811060170
Download: ML20155F977 (29)
v • d • e


Text

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F-28 Ou17, g,y, g R EA N A _YS S 0 7

- E C RYS A R V E R 300_ 3 S 3 Es" TU E _ S"0 RAG E RAC 5m "

0.9079 0.9055 0.9120 0.9082

"0 " oS5 0.9095 0.9071 0.9136 0.9098 w/is m os5 0.9115 0.9091 0.9156 0.9118

"'2 0* o "

0.9138 0.9114 0.9179 0.9141 KENO-CASMO correction includes temperature correction to 4'C, the KENO bias, and the reactivity facts for checkerboarding with 5% fuel.

Conservative values for fresh fuel used.

Holtec Report HI-982056 -

9 e

F-284017. Rev. O Table 6.4 REACTIYlTY SU3131ARY REGION 2 (Fully Loaded)

Enrichment 1.63 2.04 2.31 3.20 4.07 5.20 Temp-4*C 4C 4C 4*C 4*C 4*C sumup.

0 8

15 25 35 45 MWDA.gu Reference k.inf 0.9128 0.9114 0.8861 0.8977 0.8976 0.9095 KENO / CASMO 0.0049 0.0049 0.0049 0.0049 0.0049 0.0049 Corr.

y,n",";

0.0013 0.0013

  • 0.0013 0.0013 0.0013
  • 0.0013 Mechanical 0.0120
  • 0.0113
  • 0.0106 0.0098 0.0091
  • 0.0083 Tolerances Enrichment 0.0095 0.0074
  • 0.0062 0.0036
  • 0.0026 0.0029

& Dens Tol De I j a 0

0.0039 0.0069 0.0106 0.0135 0.0153 n

Totai uncert 0.0154 0.0141 0.0141

  • 0.0149
  • 0.0165 0.0177 Reactivity 0.9177 0.9163 0.8910 0.9026 0.9025 0.9144
  • 0.0154 0.0141 0.0141 0.0149
  • 0.0165 0.0177 Muimum 0.9331 0.9304 0.9051 0.9175 0.9190 0.9321 Reactivity w/5% ion 0,9354 0.9327 0.9074 0.9198 0.9213 0.9344

"'IO% 3o5$

0.9367 0.9340 0.9087 0.9211 0.9226 0.9357 wrisn ioss o,9395 0.9278 0.9115 0.9239 0.9254 0.9385 w/20% io" 0.9410 0.9383 0.9130 0.9254 0.9269 0.9400 Holtec Report Hl 982056..

l l

l

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F ".84017. Rev. C

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Table 6.5 REACTIVITY

SUMMARY

REGION 2 (3 of 4 Loading) l

((i[*f,"t 1.63 2.04 2.31 3.20 4.07 5.20 y

T'mp-4*C 4'C 4C 4C 4"C 4*C B3,""g 0

8 15 25 35 45 C^suo4 cas' F2 ENR F2-B204 F2-B231 F2-B320 F2-B407 F2-B520 In'["ek-0.9128 0.9114 0.8861 0.8977 0.8976 0.9095

[Q0lg c,,,.

-0.0994

-0.0994

-0.0994

-0.0994

-0.0994

-0.0994

{"['";

i 0.0013 0.0013 i 0.0013 0.0013 0.0013

  • 0.0013 KENO $a 0.0007
  • 0.0007 0.0007 0.0007 0.0007
  • 0.0007 Statistics Mechanical 0.0120 0.0113
  • 0.0106
  • 0.0098
  • 0.0091 0.0083 Tolerances EQ;,"

i 0.0095 0.0074 0.0062 0.0036

  • 0.0026 0.0029 De letion 0

0.0039 0.0069

  • 0.0106 0.0135 0.0153 Total uncen 0.0154 0.0141 0.0141
  • 0.0149 0.0165
  • 0.0177 Reactivity 0.8134 0.8120 0.7867 0.7983 0.7982 0.8101 0.0154
  • 0.0141 0.0141
  • 0.0149 0.0165
  • 0.0177 M*=m 0.8288 0.8261 0.8008 0.8132 0.8147 0.8278 Reactivity w/5% io" 0.8306 0.8279 0.8026 0.8150 0.8165 0.8296
  • /10% 'o" 0.8327 0.8300 0.8047 0.8171 0.8186 0.8317
  • 'l 5% 'on 0.8347 0.8320 0.8067 0.8191 0.8206 0.8337

"'E I"$

0.8367 0.8340 0.8087 0.S211 0.8226 0.8357 l

l Holtec Report HI-982056 -

O

F-9&4017, Rey, g.

Table 6.6 REACTIVITY EFFECTS OF ABNORMAI, AND ACCIDENT CONDITIONS Acciden:/ Abnormal Conditions Reactivity Effect Tempeiature increase Negative Void (Boiling)

Negative

~ Assembly dropped on top of rack Negligible Seismic movement Negligible Misplacement of a fuel assembly Worst Case Requires minimum 350 ppm soluble boron l

l i

Holtec Repon HI-982056 r e

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F-08 OO17, Rey, c Table 6.7 EFFECT OF TEMPERATURE AND VOID ON CALCULATED REACTIVITY OF STORAGE RACK Case Incremental Reactivity Change, ak Region 1*

Region 2 4*C (39'F)

Reference 20*C (68'F)~ -

0.0011/-0.0014

-0.0011 40*C ( 104*F)

-0.0035/-0.0042

-0.0041 80*C ( 176*F) 0.0103/-0.0120

-0.0086 l

120*C (248'F)

-0.0192/-0.0226

-0.0151 120'C + 10% void 0.0442/-0.0504

-0.0342 Region 1 uses fuel of 5% enrichment burned to 30 MWD /KgU in a checkerboard arrangement with unburned fuel of 5% enrichment. The two values in this column are the temperature effects at 30 MWD /KgU and for unburned fuel, both of which show a negative coeffient of reactivity.

i Holtec Report HI 982056 21 -

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F-98-0017. Rev. O

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7.50 i 0.063" BORAFLEX i

I IN 0.120" GAP i

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0.085 0.007" THK.0269 0.0039 gmB-10/cm I

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Fig. 4.1 REGION 1 FUEL STORAGE CELL

+

P i

Appendix A to Chapter 5 of the Holtec Report, HI-98056

" Benchmark Calculations" Provided to FPC as PROPRIETARY.

Therefore not included; will be provided or can be viewed on-site upon request.

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