ML19256D287
| ML19256D287 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 06/23/1971 |
| From: | Ross D US ATOMIC ENERGY COMMISSION (AEC) |
| To: | US ATOMIC ENERGY COMMISSION (AEC) |
| References | |
| NUDOCS 7910170796 | |
| Download: ML19256D287 (3) | |
Text
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June 23,1971
- ms e To The Files (Docket No. 50-289)
Charles G. Long, Chief, PWR Project Branch No. 2, DRL THRU:
T.0CA DOSE COMPUTER CALCULATION OF THREE MILE ISLAND UNIT 1 -
(DOCKET NO. 50-289)
In order to achieve a more exact calculation for the iodine rem by spray on Three Mile Island, we are obtaining the SPRAY-2 computer Lew Parsly of ORNL is arranging to send the program, as well as a current listing. He made a few code f rom ORNL.
.in card-deck form, He modifications to accommodate the use.of sodium thiosulfate.the deck and we wanted to make a test run before he sentparameters that I supplied use TMI-l as a test problem. The inputBy prior agreement Table 1 will him are shown on Table 1, enclosed.
be given to Met-Ed, elso, and they will also be given the results of our calculations.
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Denwood F. Ross PWR Project Branch No. 2 Division of Reactor Licer sing
Enclosures:
- 1. Table 1
- 2. Table 2
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PWR-2 Reading cc:
H. Schierling H. Denton G. Burley W. Nischan R. C. DeYoung D. Ross (3)
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1450 234
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7810170 7 g
m T_ABLE _1 TMI-1 Soray Analysis With SPRAY-2 Code
_ Input Conditions for t
Source Value Item Table 6-1, Suppl. 1 6
3 2 x 10 ft Containment Volume Table 6-1, Suppl.1 1.
109.5 f t 2
Fall Height Figure 5-1 130 ft Containment Diameter Table 6-7 3
388,000 gal Total Liquid Available 4
Table 6-1, Suppl.1 1080 p 5.
Drop Data Mean Diameter 1.50 a.
Standard Deviation page 6-13a b.
Sprayco 1713A 6.
Nozzle Data page 6-8, BAW-10022 96 per header, and Table 4-1, Suppl.
Number of Nozzles (two headers)
Table 6-1, Suppl. 1 7.
1500 gpm Flow per Header Figure 14-57 8.
281*F.
Initial Building Temperature Figure 4 4, Suppl.1 9.6 @ nozzle 9.
Spray solution pH 0 room temperatureduring id"jec.
10.
Units of Grams TID-14S44 and TES-15 Initial Concentration of Iodine "A Basic Toxicity in Core (See Table II for details 11.
5 17 Classification 1-131 9
of Radionuclides I-132 126 I-133 6
I-134 37 1-135 Chapter 1, FSAR 2535 MW 12.
Thermal Power p6-15 (37.5s) plus 42 sec.
Fig. 14-56 (4.5s-Delay Time for Spray Start Table 14 40 13.
90*F Temperature of BWST Water Arbitrary 14.
0 Heat Capacity of St-uctures 15.
Tech Specs Injection Quantity 37,500 lbs 16.
Sodium Thin 21,000 lbs Sodium Hydroxide 1450 235 I
i i
I
^ h.
T ABLE 2 jnitial Iodine Concentration in Core _
P = 2535 MW Curies per Iodine Curies per Gram Grams NW Curies Iso tope 5
517 131 2.51x10 6.36x10 1.23x10 4
132 3.81x10 9.66x10 1.07x10 9.04 0
8 6
126.4 133 5.63x10 1.428x10 1.13x10 4
8 7
134 6.58x10
- 1. 691x10 2.68x10 6.32 0
6 135 5.10x10 1.292x10 3.48x10 37.2 0
696 gm Totals
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1450 236
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