ML17130A233: Difference between revisions

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     ..,.._____________________________________                                    I
     ..,.._____________________________________                                    I
     ~-----*------DEPRESSURIZATION AUTOMATIC
     ~-----*------DEPRESSURIZATION AUTOMATIC
                                                                                   !t'~      MAXIMUM STEAM LINE BREAK
                                                                                   !t'~      MAXIMUM STEAM LINE BREAK HPCI                                                      I
    ....___________________________.... _____ __
HPCI                                                      I
     --- ------.----------------------------------------.....I
     --- ------.----------------------------------------.....I
     ....._ _ _ _ _ _ _ _ _ _..... LPCI D      F I-
     ....._ _ _ _ _ _ _ _ _ _..... LPCI D      F I-t---------------------__.I
          - - - - .------------------------------------------------...*
t---------------------__.I
     ~
     ~
B CORESPRAY I
B CORESPRAY I
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0 t 2000  llDIST IllTDllEDIATE -~7                                                          .._
0 t 2000  llDIST IllTDllEDIATE -~7                                                          .._
u m                            ~                                                            a:
u m                            ~                                                            a:
LLJ
LLJ 0                                                                          FAILURE d 1500                                                                                    ~
                                                                                          <<
0                                                                          FAILURE d 1500                                                                                    ~
LI.I
LI.I
~
~
                                                                                          .....
a:
a:
                                                                                           ~
                                                                                           ~
1000                                                                                0.2 ..J CZ:
1000                                                                                0.2 ..J CZ:
                                                                                          ....
LU
LU
                                                                                             ~
                                                                                             ~
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BREAK AREA< SQ fTl PHILADELPHIA ELECTRIC COMPANY PEACH BOTTOM ATOMIC POWER STATION UNITS 2 AND 3 UPDATED FINAL SAFETY ANALYSIS REPORT PEAK CLAD TEMPERATURE VERSUS BREAK AREA, TWO CORE SPRAY SYSTEMS, AEC/NRC ASSUMPTIONS FIGURE 6. 7 .1
BREAK AREA< SQ fTl PHILADELPHIA ELECTRIC COMPANY PEACH BOTTOM ATOMIC POWER STATION UNITS 2 AND 3 UPDATED FINAL SAFETY ANALYSIS REPORT PEAK CLAD TEMPERATURE VERSUS BREAK AREA, TWO CORE SPRAY SYSTEMS, AEC/NRC ASSUMPTIONS FIGURE 6. 7 .1


2500 u:  2000
2500 u:  2000 L
-
* L
  ~                                                                  CORE REFLOODED CORE SPRAY INITIATED
  ~                                                                  CORE REFLOODED CORE SPRAY INITIATED
-8
-8
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2500
2500
--
*
: u. 2000                                                          CORE REFLOODED
: u. 2000                                                          CORE REFLOODED
  ~                                      CORE SPRAY INITIATED          '
  ~                                      CORE SPRAY INITIATED          '
-
  ~
  ~
z  1500
z  1500
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10 0                10  I                        10 2                      10 I TJME CSECrJNOSJ PHILADELPHIA ELECTRIC COMPANY PEACH BOTTOM ATOMIC POWER STATION UNITS 2 AND 3 UPDATED FINAL SAFETY ANALYSIS REPORT DESIGN BASIS ACCIDENT, TWO CORE SPRAY SYSTEMS, AEC/NRC ASSUMPTIONS FIGURE 6.7.4
10 0                10  I                        10 2                      10 I TJME CSECrJNOSJ PHILADELPHIA ELECTRIC COMPANY PEACH BOTTOM ATOMIC POWER STATION UNITS 2 AND 3 UPDATED FINAL SAFETY ANALYSIS REPORT DESIGN BASIS ACCIDENT, TWO CORE SPRAY SYSTEMS, AEC/NRC ASSUMPTIONS FIGURE 6.7.4


..-
     .a
     .a
    .&
     .2 0-1------------------.-------------------------------------P-o                s                        10                        lS TJHE (SECONDS)
     .2 0-1------------------.-------------------------------------P-o                s                        10                        lS TJHE (SECONDS)
PHILADELPHIA ELECTRIC COMPANY PEACH BOTTOM ATOMIC POWER STATION UNITS 2 AND 3 UPDATED FINAL SAFETY ANALYSIS REPORT CORE FLOW FOLLOWING DESIGN BASIS ACCIDENT VERSUS TIME FIGURE  6.7.5
PHILADELPHIA ELECTRIC COMPANY PEACH BOTTOM ATOMIC POWER STATION UNITS 2 AND 3 UPDATED FINAL SAFETY ANALYSIS REPORT CORE FLOW FOLLOWING DESIGN BASIS ACCIDENT VERSUS TIME FIGURE  6.7.5
Line 135: Line 120:
0 I
0 I
  ...=
  ...=
"-                                                                                ...
d        10 *-
d        10 *-
en I
en I
c:r
c:r
  ~
  ~
.........
::::>
  ....m u.... 10  J-                                                                  ....
  ....m u.... 10  J-                                                                  ....
   ~
   ~
Line 152: Line 134:
LL' 0
LL' 0
I
I
.,..:
~
~
0 U>
0 U>
Line 158: Line 139:
a:
a:
  'J:
  'J:
.......
:::>
  ~
  ~
-
u m
u m
  ~
  ~
Line 173: Line 151:
I                        t 10  I r----___
I                        t 10  I r----___
to * -                                                                          ..
to * -                                                                          ..
-
0 u..
0 u..
I
I
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I to  1-                                                                          ..
I to  1-                                                                          ..
a:
a:
  %
........
   ~
   ~
t-
t-
- m u
- m u
t-
t-to                                                                                -
  %
to                                                                                -
                                     ~
                                     ~
2-t0    I*                                                                          ..
2-t0    I*                                                                          ..
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PHILADELPHIA ELECTRIC COMPANY PEACH BOTTOM ATOMIC POWER STATION UNITS 2 AND 3 UPDATED FINAL SAFETY ANALYSIS REPORT HEAT TRANSFER COEFFICIENT VERSUS TIME, TWO CORE SYSTEMS, AEC/NRC ASSUMPTIONS, DESIGN BASIS ACCIDENT FIGURE  6.7.8
PHILADELPHIA ELECTRIC COMPANY PEACH BOTTOM ATOMIC POWER STATION UNITS 2 AND 3 UPDATED FINAL SAFETY ANALYSIS REPORT HEAT TRANSFER COEFFICIENT VERSUS TIME, TWO CORE SYSTEMS, AEC/NRC ASSUMPTIONS, DESIGN BASIS ACCIDENT FIGURE  6.7.8


,-
60 so Tll'
60 so Tll'
  >
   &: ~    ------~~----------
   &: ~    ------~~----------
20
20 Ill' 10                                                          r CORE SPRAY INITIATED o----------------------------------------------------------          o      lOO  200                    500      600        700    BOO    900 TIME(SECONOS)
          -------------------------
Ill' 10                                                          r CORE SPRAY INITIATED o----------------------------------------------------------          o      lOO  200                    500      600        700    BOO    900 TIME(SECONOS)
PHILADELPHIA ELECTRIC COMPANY PEACH BOTTOM ATOMIC POWER STATION UNITS 2 AND 3 UPDATED FINAL SAFETY ANALYSIS REPORT REACTOR PRESSURE VESSEL WATER LEVEL VERSUS TIME, TWO CORE SPRAY SYSTEMS PLUS ADS, AEC/NRC ASSUMPTIONS, .02-SQ FT BREAK FIGURE  6. 7 .9
PHILADELPHIA ELECTRIC COMPANY PEACH BOTTOM ATOMIC POWER STATION UNITS 2 AND 3 UPDATED FINAL SAFETY ANALYSIS REPORT REACTOR PRESSURE VESSEL WATER LEVEL VERSUS TIME, TWO CORE SPRAY SYSTEMS PLUS ADS, AEC/NRC ASSUMPTIONS, .02-SQ FT BREAK FIGURE  6. 7 .9


60
60
.!:-.. so id
.!:-.. so id
>
  ~      'lO cc.
  ~      'lO cc.
.......
  ~
  ~
  >      30
  >      30
Line 219: Line 186:
'10
'10
~
~
fAf
fAf 20    BAf 10 O+-------------...-......----------...-----------------------~-----+
      ---  ----------------- ----------
20    BAf 10 O+-------------...-......----------...-----------------------~-----+
0            so                    100                150                200 TIME (SECONDS)
0            so                    100                150                200 TIME (SECONDS)
PHILADELPHIA ELECTRIC COMPANY PEACH BOTTOM ATOMIC POWER STATION UNITS 2 AND 3 UPDATED FINAL SAFETY ANALYSIS REPORT REACTOR PRESSURE VESSEL WATER LEVEL VERSUS TIME, TWO CORE SPRAY SYSTEMS, AEC/NRC ASSUMPTIONS, DESIGN BASIS ACCIDENT FIGURE 6.7.11
PHILADELPHIA ELECTRIC COMPANY PEACH BOTTOM ATOMIC POWER STATION UNITS 2 AND 3 UPDATED FINAL SAFETY ANALYSIS REPORT REACTOR PRESSURE VESSEL WATER LEVEL VERSUS TIME, TWO CORE SPRAY SYSTEMS, AEC/NRC ASSUMPTIONS, DESIGN BASIS ACCIDENT FIGURE 6.7.11
Line 230: Line 195:
PHILADELPHIA ELECTRIC COMPANY PEACH BOTTOM ATOMIC POWER STATION UNITS 2 AND 3 UPDATED FINAL SAFETY ANALYSIS REPORT MINIMUM CRITICAL HEAT FLUX RATIO VERSUS TIME FOLLOWING A DESIGN BASIS ACCIDENT FIGURE 6.7.12
PHILADELPHIA ELECTRIC COMPANY PEACH BOTTOM ATOMIC POWER STATION UNITS 2 AND 3 UPDATED FINAL SAFETY ANALYSIS REPORT MINIMUM CRITICAL HEAT FLUX RATIO VERSUS TIME FOLLOWING A DESIGN BASIS ACCIDENT FIGURE 6.7.12


                  .-  .. ..          .-        .        .          .
2500 ..
2500 ..                                                                *
* IL 0
  --
IL 0
2000*
2000*
r    CORE REFLOODED i-I!
r    CORE REFLOODED i-I!
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* I          I          t 2500-                                                                ..
* I          I          t 2500-                                                                ..
--a:
--a:
0 u.. 2000-r  CORE REFLOODED
0 u.. 2000-r  CORE REFLOODED CORE SPRAY INITIATED
                                                                          ..
CORE SPRAY INITIATED
   ~
   ~
c cc                                                                      ,.
c cc                                                                      ,.
Line 265: Line 226:
                                                     .05-SQ FT BREAK FIGURE 6.7.14
                                                     .05-SQ FT BREAK FIGURE 6.7.14


              .
              -
                  .
                  -
                      .          .          .        .          .
2500 ..                                                              .
2500 ..                                                              .
--
u.. 2000-r  CORE REFLOODED i:
* u.. 2000-r  CORE REFLOODED
                                                                          -
i:
  ~
  ~
CORE SPRAY INITIATED 0
CORE SPRAY INITIATED 0
_,
cc u
cc u
  ~
  ~
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                                                                       +-CORE REFLOODED
                                                                       +-CORE REFLOODED
&L: 2000
&L: 2000
-
*
  ~
  ~
  ~
  ~
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10'                        10.                      10 I TJHE tSECIN>Sl PHILADELPHIA ELECTRIC COMPANY PEACH BOTTOM ATOMIC POWER STATION UNITS 2 AND 3 UPDATED FINAL SAFETY ANALYSIS REPORT PEAK CLAD TEMPERATURE VERSUS TIME, 10,000 MWd/T EXPOSURE, TWO CORE SPRAY SYSTEMS, AEC/NRC ASSUMPTIONS, DESIGN BASIS ACCIDENT FIGURE  6.7.17
10'                        10.                      10 I TJHE tSECIN>Sl PHILADELPHIA ELECTRIC COMPANY PEACH BOTTOM ATOMIC POWER STATION UNITS 2 AND 3 UPDATED FINAL SAFETY ANALYSIS REPORT PEAK CLAD TEMPERATURE VERSUS TIME, 10,000 MWd/T EXPOSURE, TWO CORE SPRAY SYSTEMS, AEC/NRC ASSUMPTIONS, DESIGN BASIS ACCIDENT FIGURE  6.7.17


2500 r  CORE REFLOODED IL
2500 r  CORE REFLOODED IL 11..
-
* 11..
2000                                                    '
2000                                                    '
2:
2:
Line 334: Line 282:
~
~
~
~
              -
1
1
~  1.soo ...
~  1.soo ...
Ll!lllJC llNTe~N'J~Dl4TE - ~GAi(
Ll!lllJC llNTe~N'J~Dl4TE - ~GAi(
~
~
"
~
~
~
~
...
Q  /000 -
Q  /000 -
Q
Q
Line 366: Line 311:
H                                                    \
H                                                    \
~
~
:::>
()I  0.4 0.2 CHANNEL INLET QUALITY 0
()I  0.4 0.2 CHANNEL INLET QUALITY 0
0      2        4        6            8          10          12      14      16 TIME AFTER ACCIDENT ...          (SECONDS)
0      2        4        6            8          10          12      14      16 TIME AFTER ACCIDENT ...          (SECONDS)
PHILADELPHIA ELECTRIC COMPANY PEACH BOTTOM ATOMIC POWER STATION UNITS 2 AND 3 UPDATED FINAL SAFETY ANALYSIS REPORT QUALITY VERSUS TIME FOR THE DESIGN BASIS ACCIDENT FIGURE 6. 7 .20}}
PHILADELPHIA ELECTRIC COMPANY PEACH BOTTOM ATOMIC POWER STATION UNITS 2 AND 3 UPDATED FINAL SAFETY ANALYSIS REPORT QUALITY VERSUS TIME FOR THE DESIGN BASIS ACCIDENT FIGURE 6. 7 .20}}

Latest revision as of 18:19, 4 February 2020

Revision 26 to Updated Final Safety Analysis Report, Section 6.0, Core Standby Cooling Systems, Figures, Part 2 of 2
ML17130A233
Person / Time
Site: Peach Bottom  Constellation icon.png
Issue date: 04/06/2017
From:
Exelon Generation Co
To:
Office of Nuclear Reactor Regulation
Shared Package
ML17130A259 List: ... further results
References
Download: ML17130A233 (35)


Text

\

\

\

)

I STEAM BREAKS

..,.._____________________________________ I

~-----*------DEPRESSURIZATION AUTOMATIC

!t'~ MAXIMUM STEAM LINE BREAK HPCI I

--- ------.----------------------------------------.....I

....._ _ _ _ _ _ _ _ _ _..... LPCI D F I-t---------------------__.I

~

B CORESPRAY I

II I

I I

I LIQUID BREAKS I

....,_______________________ AUTOMATIC I

~ - - - - - _ _ _ _ DEPRESSURIZATION '~MAXIMUMRECIRCULATION LINE BREAK t-------,.*. _--_-------_- HPCI I


...-----------------------------------------------------~

E c t-----------------------.. 1 LPCI


- --...-----------------------------------------------11111 t-------------------*

A 1

CORE SPRAY I

I I I I I I I I 0 0.1 0.2 1.0 2.0 3.0 4.0 5.0 6.0

~

SCALE CHANGES BREAK AREA Ctt2)

PHILADELPHIA ELECTRIC COMPANY PEACH BOTTOM ATOMIC POWER STATION UNITS 2 AND 3 UPDATED FINAL SAFETY ANALYSIS REPORT CSCS'S PERFORMANCE J CAPABILITY CHART FIGURE 6.3.1

PBAPS UFSAR Figure 6.4.1 thru 6.4.2 Deleted

PBAPS UFSAR PEACH BOTTOM ATOMIC POWER STATION Peak Cladding Temperature, UNITS 2 AND 3 Maximum Recirculation Suction Line Break, UPDATED FINAL SAFETY ANALYSIS REPORT Battery Failure, EPU Power / MELLLA+ Core Flow, PEAK CLADDING TEMPERATURE VERSUS TIME Appendix K Assumptions DESIGN BASIS ACCIDENT BREAK FIGURE 6.5.1 REV. 26 04/17

PBAPS UFSAR PEACH BOTTOM ATOMIC POWER STATION UNITS 2 AND 3 Water Level in Hot and Average Channels, UPDATED FINAL SAFETY ANALYSIS REPORT Maximum Recirculation Suction Line Break, Battery Failure, EPU Power / MELLLA+ Core Flow, WATER LEVELIN HOT AND AVERAGE CHANNEL VS.

Appendix K Assumptions TIME, DESIGN BASIS ACCIDENT BREAK FIGURE 6.5.2 REV. 26 04/17

PBAPS UFSAR PEACH BOTTOM ATOMIC POWER STATION Reactor Vessel Pressure, UNITS 2 AND 3 Maximum Recirculation Suction Line Break, UPDATED FINAL SAFETY ANALYSIS REPORT Battery Failure, EPU Power / MELLLA+ Core Flow, REACTOR PRESSURE VERSUS TIME Appendix K Assumptions DESIGN BASIS ACCIDENT BREAK FIGURE 6.5.3 REV. 26 04/17

PBAPS UFSAR PEACH BOTTOM ATOMIC POWER STATION Heat Transfer Coefficients, UNITS 2 AND 3 Maximum Recirculation Suction Line Break, UPDATED FINAL SAFETY ANALYSIS REPORT Battery Failure, EPU Power / MELLLA+ Core Flow, Appendix K Assumptions HEAT TRANSFER COEFFICIENTS, MAXIMUM RECIRCULATION SUCTION LINE BREAK FIGURE 6.5.4 REV. 26 04/17

PBAPS UFSAR PEACH BOTTOM ATOMIC POWER STATION Peak Cladding Temperature, UNITS 2 AND 3 0.05 ft2 Recirculation Discharge Line Break, UPDATED FINAL SAFETY ANALYSIS REPORT Battery Failure, EPU Power / MELLLA+ Core Flow, PEAK CLADDING TEMPERATURE Appendix K Assumptions 0.05 FT2 RECIRCULATION DISCHARGE LINE BREAK FIGURE 6.5.5 REV. 26 04/17

PBAPS UFSAR PEACH BOTTOM ATOMIC POWER STATION UNITS 2 AND 3 Water Level in Hot and Average Channels, UPDATED FINAL SAFETY ANALYSIS REPORT 0.05 ft2 Recirculation Discharge Line Break, Battery Failure, EPU Power / MELLLA+ Core Flow, WATER LEVEL IN HOT AND AVERAGE CHANNELS Appendix K Assumptions 0.05 FT2 RECIRCULATION DISCHARGE LINE BREAK FIGURE 6.5.6 REV. 26 04/17

PBAPS UFSAR PEACH BOTTOM ATOMIC POWER STATION Reactor Vessel Pressure, UNITS 2 AND 3 0.05 ft2 Recirculation Discharge Line Break, UPDATED FINAL SAFETY ANALYSIS REPORT Battery Failure, EPU Power / MELLLA+ Core Flow, Appendix K Assumptions REACTOR VESSEL PRESSURE 0.05 FT2 RECIRCULATION DISCHARGE LINE BREAK FIGURE 6.5.7 REV. 26 04/17

PBAPS UFSAR Heat Transfer Coefficients, PEACH BOTTOM ATOMIC POWER STATION 2

0.05 ft Recirculation Discharge Line Break, UNITS 2 AND 3 Battery Failure, EPU Power / MELLLA+ Core Flow, UPDATED FINAL SAFETY ANALYSIS REPORT Appendix K Assumptions HEAT TRANSFER COEFFICIENTS 0.05 FT2 RECIRCULATION DISCHARGE LINE BREAK FIGURE 6.5.8 REV. 26 04/17

PBAPS UFSAR FIGURE 6.5.9 DELETED REV. 26 04/17

PBAPS UFSAR FIGURE 6.5.10 DELETED REV. 26 04/17

PBAPS UFSAR FIGURE 6.5.11 DELETED REV. 26 04/17

PBAPS UFSAR FIGURE 6.5.12 DELETED REV. 26 04/17

2500 z

0 t 2000 llDIST IllTDllEDIATE -~7 .._

u m ~ a:

LLJ 0 FAILURE d 1500 ~

LI.I

~

a:

~

1000 0.2 ..J CZ:

LU

~

500 0.1 t-z w

u 0-+--------------------------------------------------------'-o "~

IJJ

\0 .. 10.. \0 * \0 '

BREAK AREA< SQ fTl PHILADELPHIA ELECTRIC COMPANY PEACH BOTTOM ATOMIC POWER STATION UNITS 2 AND 3 UPDATED FINAL SAFETY ANALYSIS REPORT PEAK CLAD TEMPERATURE VERSUS BREAK AREA, TWO CORE SPRAY SYSTEMS, AEC/NRC ASSUMPTIONS FIGURE 6. 7 .1

2500 u: 2000 L

~ CORE REFLOODED CORE SPRAY INITIATED

-8

~ 1500 a:

d 1000 500 0-+------------------..------.~----...---------------~--~~~

0 100 200 300 'lOO 500 600 700 BOO 900 TJHE (SECONDS)

PHILADELPHIA ELECTRIC COMPANY PEACH BOTTOM ATOMIC POWER STATION UNITS 2 AND 3 UPDATED FINAL SAFETY ANALYSIS REPORT CLADDING TEMPERATURE VERSUS TIME, TWO CORE SPRAY SYSTEMS PLUS ADS, AEC/NRC ASSUMPTIONS, .02-SQ FT BREAK FIGURE 6. 7 .2

2500

u. 2000 CORE REFLOODED

~ CORE SPRAY INITIATED '

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0 100 200 soc '100 500 800 ?00 800 TJrtE CSECt'HlSl PHILADELPHIA ELECTRIC COMPANY PEACH BOTTOM ATOMIC POWER STATION UNITS 2 AND 3 UPDATED FINAL SAFETY ANALYSIS REPORT CLADDING TEMPERATURE VERSUS TIME, TWO CORE SPRAY SYSTEMS PLUS ADS, AEC/NRC ASSUf\;tPTIONS, .05-SQ FT BREAK FIGURE 6. 7.3

2500 r CORE REFLOODED COAE SPRAY INITIATED ~

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10 0 10 I 10 2 10 I TJME CSECrJNOSJ PHILADELPHIA ELECTRIC COMPANY PEACH BOTTOM ATOMIC POWER STATION UNITS 2 AND 3 UPDATED FINAL SAFETY ANALYSIS REPORT DESIGN BASIS ACCIDENT, TWO CORE SPRAY SYSTEMS, AEC/NRC ASSUMPTIONS FIGURE 6.7.4

.a

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PHILADELPHIA ELECTRIC COMPANY PEACH BOTTOM ATOMIC POWER STATION UNITS 2 AND 3 UPDATED FINAL SAFETY ANALYSIS REPORT CORE FLOW FOLLOWING DESIGN BASIS ACCIDENT VERSUS TIME FIGURE 6.7.5

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PHILADELPHIA ELECTRIC COMPANY PEACH BOTTOM ATOMIC POWER STATION UNITS 2 AND 3 UPDATED FINAL SAFETY ANALYSIS REPORT HEAT TRANSFER COEFFICIENT VERSUS TIME, TWO CORE SYSTEMS PLUS ADS, AEC/NRC ASSUMPTIONS, .02*SQ FT BREAK FIGURE 6. 7 .6

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PHILADELPHIA ELECTRIC COMPANY PEACH BOTTOM ATOMIC POWER STATION UNITS 2 AND 3 UPDATED FINAL SAFETY ANALYSIS REPORT HEAT TRANSFER COEFFICIENT VERSUS TIME, TWO CORE SPRAY SYSTEMS PLUS ADS, AEC/NRC ASSUMPTIONS,

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PHILADELPHIA ELECTRIC COMPANY PEACH BOTTOM ATOMIC POWER STATION UNITS 2 AND 3 UPDATED FINAL SAFETY ANALYSIS REPORT HEAT TRANSFER COEFFICIENT VERSUS TIME, TWO CORE SYSTEMS, AEC/NRC ASSUMPTIONS, DESIGN BASIS ACCIDENT FIGURE 6.7.8

60 so Tll'

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PHILADELPHIA ELECTRIC COMPANY PEACH BOTTOM ATOMIC POWER STATION UNITS 2 AND 3 UPDATED FINAL SAFETY ANALYSIS REPORT REACTOR PRESSURE VESSEL WATER LEVEL VERSUS TIME, TWO CORE SPRAY SYSTEMS PLUS ADS, AEC/NRC ASSUMPTIONS, .02-SQ FT BREAK FIGURE 6. 7 .9

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PHILADELPHIA ELECTRIC COMPANY PEACH aonoM ATOMIC POWER STATION UNITS 2 AND 3 UPDATED FINAL SAFETY ANALYSIS REPORT REACTOR PRESSURE VESSEL WATER LEVEL VERSUS TIME, TWO CORE SPRAY SYSTEMS PLUS ADS, AEC/NRC ASSUMPTIONS, .05-SQ FT BREAK FIGURE 6.7.10

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PHILADELPHIA ELECTRIC COMPANY PEACH BOTTOM ATOMIC POWER STATION UNITS 2 AND 3 UPDATED FINAL SAFETY ANALYSIS REPORT REACTOR PRESSURE VESSEL WATER LEVEL VERSUS TIME, TWO CORE SPRAY SYSTEMS, AEC/NRC ASSUMPTIONS, DESIGN BASIS ACCIDENT FIGURE 6.7.11

3 l

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PHILADELPHIA ELECTRIC COMPANY PEACH BOTTOM ATOMIC POWER STATION UNITS 2 AND 3 UPDATED FINAL SAFETY ANALYSIS REPORT MINIMUM CRITICAL HEAT FLUX RATIO VERSUS TIME FOLLOWING A DESIGN BASIS ACCIDENT FIGURE 6.7.12

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-- 1,000 MWd/T EXPOSURE, TWO CORE SPRAY SYSTEMS, AEC/NRC ASSUMPTIONS,

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PHILADELPHIA ELECTRIC COMPANY PEACH BOTTOM ATOMIC POWER STATION UNITS 2 AND 3 UPDATED FINAL SAFETY ANALYSIS REPORT PEAK CLAD TEMPERATURE VERSUS TIME, 10,000 MWd/T EXPOSURE, TWO CORE SPRAY SYSTEMS, AEC/NRC ASSUMPTIONS,

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TJHE f'SECrH>Sl PHILADELPHIA ELECTRIC COMPANY PEACH BOTTOM ATOMIC POWER STATION UNITS 2 AND 3 UPDATED FINAL SAFETY ANALYSIS REPORT PEAK CLAD TEMPERATURE VERSUS TIME, 1,000 MWd/T EXPOSURE, TWO CORE SPRAY SYSTEMS, AEC/NRC ASSUMPTIONS, DESIGN BASIS ACCIDENT FIGURE 6.7.16

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0.001 ~-------------------------------------------------------------....i..---------------

0.06 1.0 10 100 1,000 TIME AFTER ACCIDENT (SECONDS)

POWER GENERATION FOLLOWING A DESIGN BASIS LOCA ACCIDENT PHILADELPHIA ELECTRIC COMPANY PEACH BOTTOM ATOMIC POWER STATION UNITS 2 AND 3 UPDATED FINAL SAFETY ANALYSIS REPORT POWER GENERATION FOLLOWING A DESIGN BASIS LOCA FIGURE 6.7.19

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PHILADELPHIA ELECTRIC COMPANY PEACH BOTTOM ATOMIC POWER STATION UNITS 2 AND 3 UPDATED FINAL SAFETY ANALYSIS REPORT QUALITY VERSUS TIME FOR THE DESIGN BASIS ACCIDENT FIGURE 6. 7 .20