ML17261A986: Difference between revisions

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| number = ML17261A986
| number = ML17261A986
| issue date = 02/23/1990
| issue date = 02/23/1990
| title = Rev 4 to AP-RCS.3, Loss of Reactor Coolant Flow.
| title = Rev 4 to AP-RCS.3, Loss of Reactor Coolant Flow
| author name = Widay J
| author name = Widay J
| author affiliation = ROCHESTER GAS & ELECTRIC CORP.
| author affiliation = ROCHESTER GAS & ELECTRIC CORP.
Line 17: Line 17:


=Text=
=Text=
{{#Wiki_filter:EOP:                                                                       REV: 5 AP-RCS.2               LOSS OF REACTOR COOLANT FLOW PAGE 1   of 1 FIGURE MIN SUBCOOLING NOTE:     Subcooling Margin = Saturation Temperature From Figure Below   t-) Core Exit T/C Indication RC S PRESSURE  (PSIG) 2500 2400 RCS PRESSURE 2300 INCREMENTS 20 PSIG 2200 2100 2000 1900 1800 1700 1600 1500 1400                         SUBCOOLED 1300                         REGION 1200 1100 1000 900 800 INADEQUATE 700                                                               SUBCOOLING 600             E CNMT REGION 500 400 300 200                                         NORMAL CNMT                 TEMPERATURE INCREMENTS 10'F 100 0
{{#Wiki_filter:EOP:
200       250     300     350     400     450     500   550     600     650     700 CORE EXIT SATURATION TEMPERATURE ('F) 9003080336 900227 PDR     ADQCK 05000244 PNU
AP-RCS.2 LOSS OF REACTOR COOLANT FLOW REV:
5 PAGE 1 of 1 FIGURE MIN SUBCOOLING NOTE:
Subcooling Margin = Saturation Temperature From Figure Below t-) Core Exit T/C Indication RC 2500 2400 2300 2200 2100 2000 1900 1800 1700 1600 1500 1400 1300 1200 1100 1000 900 800 700 600 500 400 300 200 100 0
S PRESSURE (PSIG)
RCS PRESSURE INCREMENTS 20 PSIG SUBCOOLED REGION E CNMT NORMAL CNMT INADEQUATE SUBCOOLING REGION TEMPERATURE INCREMENTS 10'F 200 250 300 350 400 450 500 550 600 650 700 CORE EXIT SATURATION TEMPERATURE ('F) 9003080336 900227 PDR ADQCK 05000244 PNU


/
/
EOP:         TITLE:                                            REVS 5 AP-RCS. 2             LOSS OF REACTOR COOLANT FLOW PAGE 1 of 1 ATTACHMENT NC NOTE:   It   may take for natural several minutes following initial transient circulation to develop.,
 
EOP:
AP-RCS. 2 TITLE:
LOSS OF REACTOR COOLANT FLOW REVS 5
PAGE 1 of 1 ATTACHMENT NC NOTE: It may take several minutes following initial transient for natural circulation to develop.,
The following conditions indicate natural circulation flow:
The following conditions indicate natural circulation flow:
o RCS subcooling based on core exit T/Cs GREATER THAN REQUIREMENTS OF FIGURE MIN SUBCOOLING
o RCS subcooling based on core exit T/Cs GREATER THAN REQUIREMENTS OF FIGURE MIN SUBCOOLING
    'I o   S/G pressures     STABLE OR DECREASING o   RCS hot leg temperatures     STABLE OR DECREASING o   Core   exit T/Cs STABLE   OR DECREASING o   RCS cold leg temperatures     AT SATURATION TEMPERATURE FOR S/G PRESSURE The following   ecyxipment should be operating to support natural circulation     and cooling:
'I o
o   Control rod shroud fans o   PRZR heaters (Refer to ER-PRZR.1,     RESTORATION OF PRZR HEATERS DURING BLACKOUT) o   One Reactor Compartment Cooling Fan}}
S/G pressures STABLE OR DECREASING o
RCS hot leg temperatures STABLE OR DECREASING o
Core exit T/Cs STABLE OR DECREASING o
RCS cold leg temperatures AT SATURATION TEMPERATURE FOR S/G PRESSURE The following ecyxipment should be operating to support natural circulation and cooling:
o Control rod shroud fans o
PRZR heaters (Refer to ER-PRZR.1, RESTORATION OF PRZR HEATERS DURING BLACKOUT) o One Reactor Compartment Cooling Fan}}

Latest revision as of 10:33, 8 January 2025

Rev 4 to AP-RCS.3, Loss of Reactor Coolant Flow
ML17261A986
Person / Time
Site: Ginna 
Issue date: 02/23/1990
From: Widay J
ROCHESTER GAS & ELECTRIC CORP.
To:
Shared Package
ML17261A978 List:
References
AP-RCS.3, NUDOCS 9003080336
Download: ML17261A986 (4)
v • d • e


Text

EOP:

AP-RCS.2 LOSS OF REACTOR COOLANT FLOW REV:

5 PAGE 1 of 1 FIGURE MIN SUBCOOLING NOTE:

Subcooling Margin = Saturation Temperature From Figure Below t-) Core Exit T/C Indication RC 2500 2400 2300 2200 2100 2000 1900 1800 1700 1600 1500 1400 1300 1200 1100 1000 900 800 700 600 500 400 300 200 100 0

S PRESSURE (PSIG)

RCS PRESSURE INCREMENTS 20 PSIG SUBCOOLED REGION E CNMT NORMAL CNMT INADEQUATE SUBCOOLING REGION TEMPERATURE INCREMENTS 10'F 200 250 300 350 400 450 500 550 600 650 700 CORE EXIT SATURATION TEMPERATURE ('F) 9003080336 900227 PDR ADQCK 05000244 PNU

/

EOP:

AP-RCS. 2 TITLE:

LOSS OF REACTOR COOLANT FLOW REVS 5

PAGE 1 of 1 ATTACHMENT NC NOTE: It may take several minutes following initial transient for natural circulation to develop.,

The following conditions indicate natural circulation flow:

o RCS subcooling based on core exit T/Cs GREATER THAN REQUIREMENTS OF FIGURE MIN SUBCOOLING

'I o

S/G pressures STABLE OR DECREASING o

RCS hot leg temperatures STABLE OR DECREASING o

Core exit T/Cs STABLE OR DECREASING o

RCS cold leg temperatures AT SATURATION TEMPERATURE FOR S/G PRESSURE The following ecyxipment should be operating to support natural circulation and cooling:

o Control rod shroud fans o

PRZR heaters (Refer to ER-PRZR.1, RESTORATION OF PRZR HEATERS DURING BLACKOUT) o One Reactor Compartment Cooling Fan

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