ML21286A548

Amendment 29 to Updated Final Safety Analysis Report, Chapter 14, Table 14.6, Iodine-131 Activity (Ci) by Location as Function of Time for CRDA

ML21286A548
Person / Time
Site:	Browns Ferry
Issue date:	10/04/2021
From:	Tennessee Valley Authority
To:	Office of Nuclear Reactor Regulation
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Table 14.6-1 Sheet 1 of 2 Iodine-131 Activity (Ci) by Location as Function of Time for CRDA

Time - hrs Main Cond Stack Rm Control Rm Environment

0 2.99E+04 0.00E+00 0.00E+00 0.00E+00

0.4 2.35E+04 3.39E+00 2.32E-02 6.27E+02

0.5 2.22E+04 4.11E+00 2.57E-02 7.60E+02

0.8 1.8TE+04 6.03E+00 1.45E-02 1.12E+03

1.1 1.55E+04 7.62E+00 8.20E-03 1.42E+03

1.4 1.29E+04 8.93E+00 4.65E-03 1.67E+03

1.7 1.08E+04 1.00E+01 2.65E-03 1.88E+03

2 9.05E+03 1.09E+01 1.52E-03 2.06E+03

2.3 7.56E+03 1.16E+01 8.60E-04 2.20E+03

2.6 6.32E+03 1.22E+01 4.89E-04 2.33E+03

2.9 5.29E+03 1.27E+01 2.80E-04 2.43E+03

3.2 4.42E+03 1.31E+01 1.62E-04 2.51E+03

3.5 3.69E+03 1.34E+01 9.49E-05 2.59E+03

3.8 3.09E+03 1.36E+01 5.65E-05 2.65E+03

4.1 2.58E+03 1.38E+01 3.44E-05 2.70E+03

4.4 2.16E+03 1.40E+01 2.16E-05 2.74E+03

4.7 1.80E+03 1.41E+01 1.40E-05 2.77E+03

5 1.51E+03 1.41E+01 9.44E-06 2.80E+03

5.3 1.26E+03 1.42E+01 6.62E-06 2.83E+03

5.6 1.05E+03 1.42E+01 4.82E-06 2.85E+03

5.9 8.81E+02 1.42E+01 3.62E-06 2.86E+03

6.2 7.37E+02 1.42E+01 2.80E-06 2.88E+03

6.5 6.16E+02 1.42E+01 2.22E-06 2.89E+03

6.8 5.15E+02 1.41E+01 1.78E-06 2.90E+03

7.1 4.30E+02 1.41E+01 1.45E-06 2.91E+03

7.4 3.60E+02 1.40E+01 1.19E-06 2.92E+03

7.7 3.01E+02 1.40E+01 9.81E-07 2.92E+03

8 2.51E+02 1.39E+01 8.13E-07 2.93E+03

8.3 2.10E+02 1.39E+01 5.80E-07 2.93E+03 BFN-27

Table 14.6-1 Sheet 2 of 2

Iodine-131 Activity (Ci) by Location as Function of Time for CRDA

Time - hrs Main Cond Stack Rm Control Rm Environment

8.6 1.76E+02 1.38E+01 4.29E-07 2.93E+03

8.9 1.47E+02 1.37E+01 3.28E-07 2.94E+03

9.2 1.23E+02 1.36E+01 2.56E-07 2.94E+03

9.5 1.03E+02 1.36E+01 2.04E-07 2.94E+03

9.8 8.58E+01 1.35E+01 1.65E-07 2.94E+03

10.1 7.17E+01 1.34E+01 1.35E-07 2.94E+03

10.4 6.00E+01 1.33E+01 1.11E-07 2.94E+03

24 1.78E-02 1.01E+01 0 2.95E+03

96 0 2.22E+00 0 2.95E+03

720 0 0 0 2.95E+03

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TABLE 14.6-2

(Deleted by Amendment 19)

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TABLE 14.6-3

(Deleted)

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Table 14.6-4

(Deleted)

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Table 14.6-5

(Deleted)

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Table 14.6-6

(Deleted)

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Table 14.6-7

BOUNDING CORE INVENTORY

Isotope Ci/MWt Ci/MWt Isotope Ci/MWt Ci/MWt t=o t=24 hr t=o t=24 hr

CO58 1.430E+02 1.416E+02 XE131M 3.544E+02 3.487E+-02 CO60 1.425E+02 1.424E+02 TE132 3.829E+04 3.089E+04 KR83M 3.432E+03 1.387E+01 I132 3.885E+04 3.184E+04 KR85 3.601E+02 3.601E+02 I133 5.534E+04 2.559E+04 KR85M 7.329E+03 1.811E+02 XE133 5.504E+04 5.303E+04 RB86 6.372E+01 6.141E+01 XE133M 1.734E+03 1.562E+03 KR87 1.446E+04 3.051E-02 I134 6.141E+04 1.450E-03 KR88 2.009E+04 5.743E+01 CS134 5.703E+03 5.697E+03 KR89 2.521E+04 0.000E+00 I135 5.250E+04 4.189E+03 SR89 2.786E+04 2.748E+04 XE135 1.971E+04 1.429E+04 SR90 3.165E+03 3.165E+03 XE135M 1.135E+04 6.823E+02 Y90 3.283E+03 3.273E+03 CS136 1.941E+03 1.841E+03 SR91 3.487E+04 6.103E+03 XE137 5.023E+04 0.000E+00 Y91 3.583E+04 3.564E+04 CS137 4.037E+03 4.037E+03 SR92 3.677E+04 7.922E+01 BA137M 3.829E+03 3.810E+03 Y92 3.696E+04 1.168E+03 XE138 4.757E+04 1.172E-26 Y93 4.147E+04 8.084E+03 BA139 4.930E+04 4.170E-01 ZR95 4.880E+04 4.822E+04 BA140 4.909E+04 4.644E+04 NB95 4.897E+04 4.897E+04 LA140 5.231E+04 5.079E+04 ZR97 4.953E+04 1.851E+04 LA141 4.498E+04 7.085E+02 MO99 5.088E+04 3.956E+04 CE141 4.535E+04 4.463E+04 TC99M 4.454E+04 3.772E+04 LA142 4.397E+04 1.035E+00 RU103 4.094E+04 4.018E+04 CE143 4.245E+04 2.597E+04 RU105 2.710E+04 6.615E+02 PR143 4.113E+04 4.075E+04 RH105 2.559E+04 1.840E+04 CE144 3.810E+04 3.810E+04 RU106 1.488E+04 1.486E+04 ND147 1.806E+04 1.698E+04 SB127 2.796E+03 2.369E+03 NP239 5.201E+05 3.902E+05 TE127 2.773E+03 2.580E+03 PU238 2.805E+02 2.805E+02 TE127M 3.721E+02 3.719E+02 PU239 1.234E+01 1.238E+01 SB129 8.457E+03 1.952E+02 PU240 1.730E+01 1.730E+01 TE129 8.326E+03 1.236E+03 PU241 4.450E+03 4.448E+03 TE129M 1.615E+03 1.590E+03 AM241 5.449E+00 5.470E+00 TE131M 5.155E+03 2.976E+03 CM242 1.234E+03 1.234E+03 I131 2.669E+04 2.481E+04 CM244 5.697E+01 5.697E+01 BFN-27

Table 14.6-8

(Sheet 1)

VALUES FOR X/Q FOR ACCIDENT DOSE CALCULATIONS

Time Period Control Room Site Boundary LPZ Boundary (sec/m3) (sec/m3) (sec/m3)

Top of Stack Releases U1 Intake Unit 3 Intake (LOCA & CRDA)

0-0.5 hrs* 3.40E-5 3.02E-5 2.35E-5 1.26E-5

0.5-2 hrs 9.08E-13 1.41E-7 1.19E-6 1.13E-6

2-8 hrs 3.41E-13 4.50E-8 5.75E-7

8-24 hrs 2.09E-13 2.54E-8 4.10E-7

1-4 days 7.21E-14 7.36E-9 1.97E-7

4-30 days 1.57E-14 1.24E-9 6.88E-8

Base of Stack Releases (LOCA & CRDA)

0-2 hrs 2.00E-4 8.60E-5 2.62E-4 1.31E-4

2-8 hrs 1.28E-4 6.46E-5 6.61E-5

8-24 hrs 5.72E-5 2.80E-5 4.69E-5

1-4 days 4.05E-5 2.00E-5 2.23E-5

4-30 days 3.09E-5 1.53E-5 7.96E-6

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Table 14.6-8

(Sheet 2)

VALUES FOR X/Q FOR ACCIDENT DOSE CALCULATIONS

Time Period Control Room Site Boundary LPZ Boundary (sec/m3) (sec/m3) (sec/m3)

Refueling Vent Releases U1 Intake Unit 3 Intake (FHA and LOCA) ****

2.62E-4 1.31E-4 0-2 hrs 4.60E-4 **

Not Used 2-8 hrs Not Used **

4.69E-5 8-24 hrs 1.57E-4 **

2.23E-5 1-4 days 1.12E-4 **

7.96E-6 4-30 days 7.90E-5 **

• • • • Control room 0-2 hr for FHA only; values 8 hr+ for control room and LPZ Boundary used as surrogate for HCVS release

Turbine Building Exhaust Release (MSLB - EAB/LPZ; Post-LOCA MSIV Leakage - Unit 1 Only)

0-2 hrs 3.22E-4 ** 2.62E-4 1.31E-4

2-8 hrs 2.77E-4 ** 6.61E-5

8-24 hrs 1.31E-4 ** 4.69E-5

1-4 days 7.91E-5 ** 2.23E-5

4-30 days 6.10E-5 ** 7.96E-6

• • Bounded by the Unit 1 Intake

Turbine Building Roof Ventilators Release (Post LOCA MSIV Leakage Units 2/3 Only)

0-2 hrs *** 2.17E-4 2.62E-4 1.31E-4

2-8 hrs *** 1.64E-4 6.61E-5

8-24 hrs *** 7.89E-5 4.69E-5

1-4 days *** 4.33E-5 2.23E-5

4-30 days *** 3.35E-5 7.96E-6

• • • Bounded by the Unit 3 Intake

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Table 14.6-9

(Deleted by Amendment 19)