ML20084R878

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Rev 2 to Procedure Bzp 380-T4, Core Damage Assessment Worksheets
ML20084R878
Person / Time
Site: Byron, 05000000
Issue date: 04/27/1984
From:
COMMONWEALTH EDISON CO.
To:
Shared Package
ML20084R841 List:
References
BZP-380-T4, NUDOCS 8405230296
Download: ML20084R878 (5)


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BZP 380-T4 R: vision 2 CONTAINMENT ATM0pPHERE ACTIVITY WRKSHEET Elapsed Time Measured Ingrowth and Decay Decay & Ingrowth Nuclide Shutdown to Specific Correction Corrected Containment Containment Sample Count, Activity Factor Sp. Activity Atmosphere Atmosphere (hours)

C1/cc (from BZP 380-A8, Pa. 10)

C1/cc Volume, cc Activity, C1 l

Kr-85m 7.95E10 Kr-87 7.95E10 Kr-88 7.95E10 i

Xs 131m 7.95E10 Xe 133 7.95E10 X3 133m 7.95E10 X3 135 7.95E10 I 131 7.95E10 1 132 7.95E10 I 133 7.95E10 I'135 7.95E10 i

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APR 271984 l (3958P)

B.O.S.R,

~

BZP 380-T4 Revision 2 Estimate of RCS Mass 1.

obtain the reactor coolant volume additions for the following:

Estimated Volume Maximum Volume Tank Added Added (callons) a.

Refueling Water Storage Tank 495,000 b.

Accumulator A 7,217 c.

Accumulator B 7,217 d.

Accumulator C 7,217 e.

Accumulator D 7,217 f.

Boric Acid Storage Tank 48,000 g.

Residual Heat Removal System 5,000 h.

Otner source Total 2.

Convert gallons to grams as follows:

Total reactor coolant system volume added:

, gallons x 3785 gas / gal =

gas 3.

Determine the Reactor Coolant System Mass as follows:

3.22E8 grams x system specific gravity

  • grams

=

4.

Determine the Total Liquid Mass as follows:-

RCS Mass grams + Added Mass grams =

graw System Specific Gravity is determined from BZP 380-AB, page 2.

PPROVED (3959P)

APR 271984 B. o. S. R.

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o APPROVED BZP 380-T4 Date:

APR 271984 Ti"*:

B. o. s. a.

Performed by:

CORE DAMAGE ASSESSMENT SUl00LRY SHEET Mode of Percent Clad Percent Percent Estimation Damaae Overtemperature Puel Melt

<50%

>50%

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<50%

>50%

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% Zire - H O Reaction 2

Core Exit Temp, 'F Core Uncovered j

Cont. Monitor (Hi Rance R/hr)

Containment Atmos., H U 2

Final Assessment:

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