ML20028A634
| ML20028A634 | |
| Person / Time | |
|---|---|
| Site: | Yankee Rowe |
| Issue date: | 11/10/1982 |
| From: | YANKEE ATOMIC ELECTRIC CO. |
| To: | |
| Shared Package | |
| ML20028A631 | List: |
| References | |
| YAEC-1325, YAEC-1325-ERR, NUDOCS 8211240041 | |
| Download: ML20028A634 (6) | |
Text
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TTO Eb DM CA TABLE 7-4 Oo 00At PLANT OPERATING CONDITIONS FOR MODES 1-6 O
BORON DILUTION ANAI.YSES YANKEE ROWE CORE XV I Q
Oc2 Ow
, T8C Ofuo
' me Average Minimum Reactivity
% Rated
- Coolant Dilution Minimum Shutdown Mode Condition Power Temperature Volume Margin Requirements Mode Description Keff (Thermal)
(OF)
(ft.3)
(%Ap )
1 Power Operation
).99
>2
>330 2,400 5.00(1) 2 Startup
>.99
<2 7330 2,400 5.00(1)
<.99 0
>330 1,700 4.72 (2) 3 Hot Standby 4
Hot Shutdown
<.96 0
330-200 1,276 5.00 S
Cold Shutdown
<.96 0
1200 1,276 5.00
<.95 0
<140 1,276 5.00 i
6 Refueling **
1 Os j
Y
- Excluding Decay Heat
- Reactor Vessel Head Unbolted or Removed and Fuel in the Vessel (1) Values given above are conservative. The Technical Specification value is 5.5%Ap.
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(2) Minimum value in this Mode.
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TABLE 7-5 MODES 1 AND 2 BORON DILU1 ION Referen e Cycle Pa rame te r Reload Cycle (Core XV) 3 Minimum Coolant Volume, ft
- 2400 2400 Initial Soron Concentration 1946 2000 with Uncertainties, ppm Inverse Boron Worth, pps/%Ap 101 105 Time to Loss of Shutdown 48.6 46.2 Margin, Minutes
- Assumes one main coolant loop isolated.
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TABLE 7-6 MODE 3 BORON DILUTION Referen{eCycle Pa rame ter Reload Cycle (Core XV)
Minimum Coolant Volume, f;3*
1700 1700 Initial Boron Concentration 1881 2000 with Uncertainties, ppm Inverse Boron Worth, ppm /% Ap 101 105 Time to Loss of Shutdown 33.5 32.7 Margin, Minutes
- Assumes three main coolant loops isolated.
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TABLE 7-7 MODES 4 AND 5 BORON DILUTION
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l ReferekeCycle Parameter Reload Cycle (Core XV)
Minimum Coolant Volume, ft3*
1276 1276 i
Initial Boron Concentration, ppm 1928 2200 i
Inverse Boron Worth, pra/%Ap 97 90 Time to Losa of Shutdown 25.1 21.1 Margin, Minutes j
- Assumes four main coolant loops isolated.
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TABLE 7-8 MODE 6 BORON DILUTION l
RefereEbeCycle Parameter Reload Cycle (Core XV)
Minimum Coolant Volume, ft3*
1276 1276 Initial Boron Concentration, ppm 2118 2200 j
Inverse Boron Worth, ppm /% Ap 94.5 90 Shutdown Margin, % Ap 7.0 5
Time to Loss of Shutdown 35.2 21.5 Margin, Minutes i
- Assumes all four main coolant loops isolated.
1 4
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TABLE 7-9 MODE 6 BORON DILUTION WORST CASE k
Pa rame ter Reload Cycle 3
Minimum Coolant Volume, ft
- 1700 Initial Boron Concentration, ppm 2200 Inverse Boron Worth, ppm /%Ap 94.5 Shutdown Nkrgin, %Sp 5.0 Ti.e to Loss of Shutdown 30.3 Margin, Minutes
- Assumes three main coolant loops isolated.
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