ML21130A074

0 to Updated Final Safety Analysis Report,Section VI, Figures

ML21130A074
Person / Time
Site:	Cooper
Issue date:	04/21/2021
From:	Nebraska Public Power District (NPPD)
To:	Office of Nuclear Reactor Regulation
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References
NLS2021013
Download: ML21130A074 (2)

Text

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(J) 10.5 7.0 3.5 0.0 Minimum Containment Pressure Required for ECCS Pump Operation

+------------~ ~

Suppression Pool Temperature (Jes ~

V RHR

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0 100 200 300 Note: Core Spray pumps initially require containment overpressure due to high run-out flows. See reference (60) for other sensitivity cases.

I Wetwell Pressure I

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400 500 600 Time after the event (seconds) 1 RHR 700 250 Design Basis flowrates t <= 600 s CS = 6,525 gpm RHR = 9,240 gpm t > 600 s CS = 4,750 gpm RHR = 7,700 gpm I~

cs 800 900 I-

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VI Nebraska Public Power District COOPER NUCLEAR STATION UPDATED SAFETY ANALYSIS REPORT (USAR)

Minimum Containment Pressure for Operation of ECCS Pumps (0 - 1000 Seconds)

Figure VI-5-15 08/13/02

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Nole: These curves represent the "design case" required overpressure for CS and RHR. See reference (60) for other sensitivity cases.

Minimum Containment Pressure Required for ECCS Pump Operation Wetwell Presv:1,,,-"'""

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Design Basis Flowrates t---t-140 t <= 600 s t > 600 s 100,000 CS = 6,525 gpm RHR = 9,240 gpm CS = 4,750 gpm RHR = 7,700 gpm 100 1,000,000 Nebraska Public Power District COOPER NUCLEAR STATION UPDATED SAFETY ANALYSIS REPORT (USAR)

Minimum Containment Pressure for Operation of ECCS Pumps (1000 - 106 Seconds)

Figure VI-5-16 08/13/02