ML20212A184
| ML20212A184 | |
| Person / Time | |
|---|---|
| Site: | Sequoyah  |
| Issue date: | 08/25/1999 |
| From: | WESTINGHOUSE ELECTRIC COMPANY, DIV OF CBS CORP. |
| To: | |
| Shared Package | |
| ML20212A168 | List: |
| References | |
| WCAP-15224-ERR, WCAP-15224-R00-ERR, NUDOCS 9909160105 | |
| Download: ML20212A184 (5) | |
Text
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m-ENCLOSURE 2 TENNESSEE VALLEY AUTHORITY SEQUOYAH NUCLEAR PLANT (SQN)
UNITS 1 AND 2 ANALYSIS OF CAPSULE Y FROM THE TENNESSEE VALLEY AUTHORITY SEQUOYAH UNIT 1 REACTOR VESSEL RADIATION SURVEILLANCE PROGRAM (ERRATA SHEET FOR WCAP-15224) l p.
9909160105 990913 PDR ADOCK 05000327 PM p
1 i
ERRATA SHEET -
Westinghouse Topical Report WCAP-15224 Reactor Vessel Radiation Surveillance Program - Unit 1 Capsule Y Analysis August 25,1999
'Ihe following errors were discovered after publication of Topical Report WCAP-15224. They are j
corrected as noted.
Page 7-1 The fluence for Capsule U is listed as 7.96 x 10" n/cm' in Table 7-1. The correct fluence for Capsule U is 7.96 x 10" n/cm'. A conected table is attached to this errata sheet.
Page C-54 This page is missing from the report. A copy of the page is attached to this enata sheet.
Page C-72 This page is missing from the report. A copy of the page is attached to this errata sheet.
j u.
1
.- S 7-1 i
SURVEILLANCE CAPSULE REMOVAL SCHEDULE The following surveillance capsule removal schedule meets the requirements of ASTM El 85-82 and is recommended for future capsules to be removed from the Sequoyah Unit I reactor vessel. This recommended removal schedule is applicable to 32 EFPY of operation.
Table 7-1 Sequoyah Unit 1 Reactor Vessel Surveillance Capsule Withdrawal Schedule Removal Time Fluence Capule Location Lead FactorW (EFPY)*
(n/cm,E>1.0 MeV)N 2
T 40' 3.39 1.03 2.61 x 10 (c)
U 140' 3.47 3.00 7.96 x 10 (c)
X 220' 3.47 S.27 1.32 x 10"(c)
Y 320' 3.43 10.03 2.19 x 10"(c,d)
S 4*
1.08 Standby (d.e)
V 176*
1.08 Standby (d,e)
W 184*
1.08 Standby (d.e)
Z-356' 1.08 Standby (d,e)
Notes
]
(a)
Updated in Capsule Y dosimetry analysts, see Section 6 of this report.
(b)*
Effective Full Power Years (EFPY) from plant startup.
(c)
Plant specific evaluation.
(d)
This fluence is not less than once or greater than twice the peak end oflicense (32 EFPY) fluence (c)
Capsules S, V, W and Z will reach a fluence of 2,.74 x 10 (E > 1.0 MeV), the 48 EFPY peak vessel fluence at approximately 44 EFPY, respectively.
9 l
s 3
1
./
Sequoyah Unit 1 Capsule Y
IRRADIATED CAPSULE U CVCRAPH 4J Hyperbolic Tangent Curve Printed at 113&l5 on 01-12-1999 Page1 Coefficients of Curve 1 A = 50 B = 50 C = 108.5 TO = 115.72 Equation is: Shear /. = A + B ' i tanh((T - TO)/C) l Temperature at 50x Shean 115.7 Material FORCING SA508Cl2 Heat Numben 980919/281587 (04)
Orientation TL Capsule U Total Fluence 100
~
~_
v m
a O
mo=
cn ac o
c)o b
40
/
ga v
20
/
J o
i i
i i
i i
i I
-300
-200
-100 0
100 200 300 400 500 600 l
Temperature in Degrees F Data Set (s) Plotted Plant: SQ1 Cap; U Material FORCING SA508Cl2 Ori TL Heat f. 980919/281587 (04)
Charpy V-Notch Data Temperature input Percent Shear Computed Percent Shear Differential 0
0 1059
-1059 Ta 50 3106 17.93 100 30 42.8
-l?.8 125 50 5426
-426 125 55 5426
.73 150 Ta 6528 9.71 17 5 70 74B8
-4B8 200 85 8254 2.45 200 80 8254
-254
" Data continued on next pac' "
j C-54
s, IRRADIATED CAPSULE X Page2 Material: FDP.CING SA508C12 Heat Number: 980919/281587 (04)
Orientation TL Capsule X Total Fluence Charpy V-Notch Data (Continued)
Temperature Input CVN Energy Computed CVN Energy Differential 225 62 4631 15.68 T/5 58 SL59 6.4 350 54 54.78
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