ML16341B096

7 to Updated Final Safety Analysis Report, Chapter 6, Table: 6.2-10, Recirculation Sump Component Design Load Combinations

ML16341B096
Person / Time
Site:	Cook
Issue date:	10/24/2016
From:	Indiana Michigan Power Co
To:	Office of Nuclear Reactor Regulation
Shared Package
ML16336A263	List: AEP-NRC-2016-42, Fire Protection Program Change Summary ML16336A225 ML16336A228 ML16336A238 ML16336A291 ML16336A292 ML16336A294 ML16336A295 ML16336A297 ML16336A298 ML16336A299 ML16336A300 ML16336A301 ML16336A302 ML16336A303 ML16336A304 ML16336A305 ML16336A306 ML16336A308 ML16336A309 ML16336A310 ML16336A311 ML16336A312 ML16336A313 ML16336A314 ML16336A315 ML16336A316 ML16336A317 ML16336A318 ML16336A319 ML16336A320 ML16336A322 ML16336A323 ML16336A324 ML16336A325 ML16336A327 ML16336A328 ML16336A329 ML16336A330 ML16336A332 ML16336A333 ML16336A334 ML16336A336 ML16336A337 ML16336A338 ML16336A339 ML16336A340 ML16336A341 ML16336A342 ML16336A345 ... further results
References
AEP-NRC-2016-42
Download: ML16341B096 (1)

Text

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22 Table:

6.2-10 Page:

1 of 1 RECIRCULATION SUMP COMPONENT DESIGN LOAD COMBINATIONS1 Load Combination Case No.

Description Load Combination 0

Full Recirculation Flow with Clean Main and Remote Strainers; Applicable to Main and Remote Strainers DW2 + TAL3 + DBE4 + FRHL5 + DL6 +

NL(t)7 1

Loads Immediately after the Pipe Rupture; Applicable to Main and Remote Strainers DW(2) + TBL8 + DBE(4) + NL(t)(7) 2 Containment Fill; Forward Flow through Main Strainer with Reverse Flow through Waterway to Remote Strainer DW(2) + TFL9 + DBE(4) + NL(t)(7) +

PFHL10 3

Plugged Main Strainer with Recirculation Flow from Remote Strainer DW(2) + TAL(3) + DBE(4) + FRHL(5) +

DL(6) + NL(t)(7) 4 Pressure Pulse at Instant of Pipe Rupture; Applicable to Main and Remote Strainers DW(2) + TOL11 + PP12 + NL(t)(7) 1 The load combinations are used for the design and qualification of the main and remote strainers and waterway, unless otherwise indicated in the Description column.

2 DW - Dead Weight.

3 TAL - Thermal effects at accident temperature of 160°F when recirculation is initiated for a large break LOCA consistent with the time of maximum hydrodynamic load.

4 DBE - Design Basis Earthquake.

5 FRHL - Full Recirculation Hydraulic Loads at 14,400 gpm, the bounding value for ECCS flow 6 DL - Debris Load. For structural analysis of main and remote strainers, bounding debris mass values of 1986 lbs and 1530 lbs, respectively, were used.

7 NL(t) - Nozzle Loads. Loads applicable only to the remote strainer and local conditions at the time of the load case.

8 TBL - Thermal Break Load. Thermal effects at post-break containment environment temperature of 236°F.

9 TFL - Thermal Fill Loads During Pool Fill (200°F).

10 PFHL - Pool Fill Hydraulic Loads - reverse flow and waterway loads.

11 TOL - Thermal effects at normal (maximum) operating temperature of 160°F for the main strainer and 120°F for the remote strainer.

12 PP - Pressure Pulse. Short term pressure pulse of 5.0 psid acting outward from within the main strainer and waterway and 2.5 psid acting outward from within the interface between the waterway and the remote strainer.