ML20128E648

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Rev 12 to Operating Procedure A.21, Spent Fuel Cooling Sys
ML20128E648
Person / Time
Site: Rancho Seco
Issue date: 04/17/1985
From:
SACRAMENTO MUNICIPAL UTILITY DISTRICT
To:
Shared Package
ML20128E634 List:
References
A.21, TAC-56689, NUDOCS 8505290437
Download: ML20128E648 (18)
v • d • e


Text

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- 04-17-85 R2v. 12 '

WP0918P

,; :n D-00158 A.21-SPENT FUEL COOLING SYSTEM 1: ,

4 l

'1.0 PURPOSE

> .1 Provide procedures to accomplish the following operations:

.1 Fill and Startup of Spent Fuel Cooling System (Section 4.1) A.21-2

.2 Startup of Spent Fuel Purification System (Section 4.2) A.21-3

.3 Spent Fue,1 Pool Skimmer System Operation (Section 4.3) A.21-4

\

.4 Spent Fuel Pool Liner Leak Detection System Operation A.21-5' )

(Section 4.4)

.5 Normal Operation (Section 5.0) A.21-5

.6 Shutdown of Spent Fuel Cooling and Purification (Section 6.1) A.21-6

.7 Shutdown of Spent Fuel Pool Skimmer System (Section 6.2) A.21-6

. .8 Spent Fuel Coolant Filter Replacement (Section 7.1) A.21-7

' ["1 .9 Draining the Spent Fuel Pooliand Coolant System (Section 7.2) A.21-8 c .

e .10 Utilizing Decay Heat System to Cool Spent Fuel (Section 7.3) A.21-8 y

.11 Water Removal from Spent Fuel Pool Upender Pit (Section 7.4) A.21-10 i

.12 Filling Upender Pit from Spent Fuel Pool (Section 7.5) A.21-10 r

.13 Replacement of Spent Fuel Coolant Demineralizer Resin A.21-11 (Section 7.6)

.14 Adjusting Spent Fuel Pool Boron Concentration and/or Level A.21-11 (Section 7.7)

2.0 REFERENCES

l' .1 P and ID M-523, Spent Fuel Cooling System

.2 P and ID M-543, Component Cooling Water

.3 P and ID M-522, Decay Heat System l

4v Rev. 12 A.21-1 l-9505290437 DR 850522 p ADOCK 05000312 PDR l

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REFERENCES (Continued)

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(",

2.4 Station Manual Systems Descriptions, Volume 1 n

[I^ .5 Rancho Seco Unit 1 Process Standards m 3.0 LIMITATIONS AND PRECAUTIONS ,

.1 Maximum allowable demineralizer inlet temperature 140*F.

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@ .2 Maximum flow through purification loop,160 gpa.

i

.3 Minimum allowable spent fuel pool level for skimmer pump operation is 38'.

.4 Maximum pool level is 39 feet. Minimum pool level while moving spent fuel is 38 ft 3 inches. During normal operation, minimum level is 35 feet.

g .5 Minimum allowable boron concentration in spent fuel storage pool is ~

1875 ppe.

.6 Maximum allowable temperature of storage pool water is 110*F. j

.7 Spent Fuel Cooling Water pump maximum allowable flow is 1200 gpa (pump  !

differential pressure of 17 psia).

[ .8 Maximum filter differential pressure 25 psi. _

.9 Maximum resin differential pressure 50 psi.~

.10 Spent Fuel Storage Pool Water will be maintai_ned visibly clear to the bottom of the pool.

I- .11 Before transferring water from'the fuel transfer canal to' the BWST, the -

gate must be installed in the spent fuel pool.

- 4.0 SYSTEM STARTUP f .1 Spent Fuel Cooling Water System .

f ' Initial Conditions

. .1 Pool empty and/or system drained.

.2 Water available from the borated water storage tank for filling pool and/or system. .

.3 Component cooling water system available.

(

Rev. 12 L A.21-2 t

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1

SYSTEM STARTUP (Continued)

[{[ Procedure

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  • 4.1 . 4 .

Valve lineup in accordance with Enclosure 8.1 and 8.2, Spent Fuel Cooling Water System.

.- e, 1 . -

.5. Fill spent fuel cooling water pool and/or system with water from the borated water ~ storage tank to 38'6" normal operating level.

N . .1 Open SWS-013 domineralizer pump P-274. suction from BWST.

y;.

1 -

.2 Vent domineralizer pump P-274, filter F-275 and .demineralizer

% D-276.

g- .

. . .. + +

.3 Open DNS-050 dominera11zer D-276 outlet to skimmer nozzles and throttle SFC-014 outlet of desineralizer D-276. .

. .4 Rack in domineralizer. pump P-274 breaker 2C502, MCC-S2C5.

b. - . .. . . .
, .5 Start domineralizer pump P-274 and throttle desineralizer D-276

'~^ outlet SFC-014 to establish 160 gpa through FI-27402; (maximum '

flow available may be less than 160 gpe).

.6 Observe filter F-275 for a normal differential. pressure. of approximately 5-20 psi.

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L'-

.7 Observe domineralizer D-276 normal differential pressure of

- - " J- - -

N i- approximately 10-45 psi. -

.8 Stop domineralizer pump P-274 and close BWS-013 and BWS-050 when spent fuel pool level reaches 38'6". u ,- - . c.

, .6 Vent Spent Fuel cooling water pump P-272 and Cooler E-270. .

.7 Throttle Spent Fuel Cooling Water System return valve SFC-005.

.8 Rack in Spent Fuel Cooling Water pump P-272 breaker 2C501, MCC-S2CS.

r . .

T,9 .g Start pump P-272, throttle Spent Fuel Cooling Water System return valve SFC-005, and establish pump differential, pressure of 17 psid by c " throttling SFC-005. .

.10 Maintain Spent Fuel Pool between ambient and 110"F. -

.2 Purification of the Spent Fuel Storage Pool

~

Initial Conditions -

-:. .1 Spent Fuel Cooling Water System n service in accordance with Section e a- 4.1. -

a- . -

t.

\~ .{ . Rev. 12 j'

A.21-3 t:

'. Q y . ,_ _... . - _ _ . _ _ _ _. -._ _ . _ . _ _ . _ _ . - _ _ _ . . _ _ _ _ _ . . _ _ _ _ _ _ _ _ _ _ _ _ _ _ , _ _ _ _ . . _ . _

SYSTEM STARTUP (Continued)

Purification of the borated water storage tank is not needed.-

(' .-

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4.2 .2 Procedure

.3 Valve lineup in accordance with Enclosure 8.2, Purification of the Spont Fuel Storage Pool.

.4 Open pump P-274 suction valve SFC-006 and vent demineralizer pump P-274, filter F-275, and demineralizer D-276.

.5 Open SFC-019 purification system return to pool.

.6 Rack in demineralizer pump P-274 breaker 2C502, MCC-S2C5.

.7 Start demineralizer pump P-274 and throttle outlet valve SFC-014 to establish 160 gpm through F1-27402.- Additional throttling of SFC-005 may be necessary to balance flow; (maximum flow available may be less

- than 160 gpm).

.8 Observe filter F-275 normal differential pressure of approximately 5-20 psi. .

.9 Observe demineralizer D-276 normal differential pressure of approximately 10-45 psi.

.3 Spent Fuel Pool Skinsner System C'.

b Initial Conditions

.1 Spent Fuel Storage Pool water level is between 38' and 39'.

.2 Spent Fuel Storage Pool water surface needs to be skimmed.

.3 Valve lineup in accordance with Enclosure 8.2, Purification of the l Spent Fuel Storage Pool. -

.4 Open DHS-049 skimmer outlet to demineralizer pump P-274.

.5 Open DHS-050 demineralizer D-276' outlet to skinsner nozzles.

Throttle SFC-014 demineralizer D-276 outlet isolation valve.

.6

.7 Rack in demineralizer pump P-274 breaker 2C502, MCC-S2C5.

.8 Start demineralizer pump P-274 and throttle demineralizer D-276 outlet SFC-014 to establish 160 gpm through FI-27402; (maximum flow available mAy be 'less than 160 gpm).

.9 Observe filter F-275 normal differential pressure of approximately 5-20 psi.

Rev. 12 A.21-4

g 4 :6 QL y>

b.

' SYSTEM STARTUP (Continued)

[Ni-H 4.3 .10 . Observe domineralizer D-276 norinal differential pressure of p approximately 10-45 psi.

r.

T .4 Spent Fuel Pool Liner Leak Detection System .

Initial Conditions -

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.1 Water in Spent Fuel Storage Pool.

' Procedure

.2 Check FG-27209, FQI-27209, and FG-27210 for signs of liner leakage.

s 5.0 NORMAL OPERATION h .1. Spent Fuel Cooling Water System Initial Conditions

.1 Spent Fuel Cooling System in service in accordance with Section 4.1.

.2 Purification in service in accordance with Section 4.2.

,.3 Procedure ,_ h3 ,

Y .3 Maintain pool water temperature between ambient and 110*F.

.4 Maintain demineralizer D-276 differential less than 50 psi.

.5 Maintain filter F-275 differential less than 25 psi.-

.6 Spent Fuel Cooling pump P-272 flow is less than .1200 gpm.

.7 Spent Fuel Cooling pump P-272 differential pressure is 17-22 psid (1000-1200 gpm). _ r:

12> .8 Maintain pool water level above 35' for norinal operation, and between

< 38'3" and 38'9" for refueling operations. -

Pool Makeup -

NOTE:

Evaporation will gradually cause pool level

~-

to decrease. Fill pool according to Steps .9 through .18 below to maintain level as in .8 -

4 above.

.9 Stop the spent fuel demineralizer pump P-274.

.10 Close spent fuel coolant demineralizer pump P-274 suction valve SFC-006.

(.

'" Rev. 12 A.21-5 a

e

Rw-NORMAL OPERATION (Continued) .,

5.1 .11 Open borated water storage tank supply valve BWS-013 to suction of demineralizer pump P-274.

.12 Throttle demineralizer D-276 outlet valve SFC-014.

.13 Start demineralizer pump P-274 and throttle desineralizer D-276 outlet va1ve SFC-014 to establish 160 gpa through FI-27402; (maximum flow available may be less than 160 gpm).

.14 Fill spent fuel pool to normal operating level (38'6").

.15 Stop spent fuel'demineralizer pump P-274.

.16 Close borated water storage tank supply valve BWS-013 to suction of domineralizer pump P-274.

.17- Open Spent Fuel Coolant demineralizer pump P-274 suction valve SFC-006 and start the Spent Fuel demineralizer pump P-274.

.18 Observe FI-27402 for demineralizer flow of 160 gps.

6.0 SHUTDOWN

.1 Spent Fuel Cooling Water and Purification System Initial Conditions-

.1 Spent Fuel Cooling Water System in service. r .

.2 Purification' of Spent Fuel Pool water is in progress.

Procedure

. i , . , ,_ : - -

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-. NOTE:

If irradiated filiT is located in the Spent i

Fuel Pool, an. alternate method of cooling this fuel must be provided by a decay heat P system. Refer to this procedure, Section 7.3.

.3 Stop Spent Fuel coolant pump P-272 and demineralizer pump P-274.

p. .4 Close Spent Fuel Cooler E-270 outlet valve CCW-123.

.2 Spent Fuel Pool Skimmer System i Initial Conditions 7

.1 Spent Fuel Storage Pool water level is between 38' and 39'.

! .2 Pool skimer system in service.

Rev. 12 A.21-6 t

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1. ' f:.l ' SHUTDOWN (Continued)

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Procedure-p km J' 6.2 .3 Stop desineralizer pump P-274.

L 1 .4- Ciose DHS-049 skimmer outlet to domineralizer pump P-274.

o . .

1

- .5 Close DNS-050 domineralizer D-276 outlet to skimmer nozzles.  :

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.6' -Open SFC-014 dominera11zer D-276' outlet isolation valve. - -

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~.7 Open SFC-006 pump P-274 suction valve. . .
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.8 Open SFC-019 purification system return to p'ool.

Lj h .9' Start domineralizer pump P-274.

.10 -Observe domineralizer D-276 flow of 160 gpa through FI-27402; g (maximum flow available may be less than 160 gpa).

y . .

.11' observe filter F-275 normal differential pressure of approximately 5-20 psi. -

.12 Observe domineralizer D-276 nomal differential pressure of..

F - approximately 10-_40 psi.

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7.0 ABNORMAL OPERATIONS A

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.1 Spent Fuel Coolant Filter F-275' Replacement - .

..m Initial Conditions --

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.1 The purification domineralizer D-27 system is in servid:e.

The ap of filter F-275 has increased to approximately 25 psi.

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.2 ,

_< Procedure CAUTION:

,1 " ..

i'1 Radiation and smearable contamination may O ' '

be present. _

.3 Check pump P-274 off, close filter F-275 inlet valve SFC-010 and j' L outlet valve SFC-012.

.4 Open filter F-275 drain valve SFC-028 and vent valve SFC-027.

A .5 Remove ~ filter F-275 and replace cartridges (3 microns).

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.6 Close filter F-275 drain valve SFC-028 and vent valve SFC-027.

i '- Rev. 12 A.21-7 d

O L

ABNORMAL OPERATIONS (Continued) 7.1 .7 Open filter F-275 iniet valve SFC-010; fill filter and vent, and then open outlet valve SFC-012.

.8 Observe normal ' differential across filter F-275 between 5-20 psi when used.

.2 Method for Draining the Spent Fuel System Initial Conditions

.1 Spent Fuel Storage pool level is at normal operating level and needs to be drained.

NOTE:

Depending on the initial condition of the BWST, it may be necessary to use available storage in the radwaste system.

.2 Reactor Shutdown.

.3 No irradiated fuel in Spent Fuel Pool.

Procedure

.4 Draining pool and system can be accomplished by pumping spent fuel pool level down to the borated water storage tank through BWS-014 (??

si?// .

until Spent Fuel Coolant Pump P-272 loses suction (approximately 26'). (Depending on the initial condition of the BWST, it may be )

necessary to use available storage in the radwaste system.) _

.5 Draining of system can be accomplished by opening drain valves on l

pumps P-272 and P-274 and cooler E-270.

NOTE:

Do not drain pool below 26' unless all irradiated material nas been removed.

.6 Use a submergible pump to complete draining of Spent Fuel Pool.

.3 Utilizing Decay Heat System to Cool Spent Fuel NOTE:

For the case where 1-1/3 cores are stored due to complete unloading of the reactor vessel, one of the two redundant decay heat removal pumps and coolers will be used to supplement the pump storage pooland cooler to maintain,F.the temperature at 110 spent fuel I

' ' l Rev. 12 A.21-8 l l

l 1

l

ABNORMAL OPERATIONS (Coptinued)

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  • Initial Conditions .

7.3 .1 Irradiated fuel stored in the spent fuel storage pool.

.2 Loss of spent fuel coolant pump P-272 or spent fuel cooler E-270.

.3 Decay heat system lined up according to operating procedure A.8, SFAS Standby operation.

Procedure CAUTION:

Do not violate Technical Specifications, Section 3.0. -

.4 Place nuclear service raw water system A [8] in service per OP-A.25.

.5 Place nuclear service cooling water system A [B].in service to supply decay heat cooler per OP-A.24.

.6 Open DHS-056 [DHS-055] decay heat system suction. .

.7 Open DHS-032 and HV-26046 [HV-26047] decay heat system cross-tie valves. g

.8 Start decay heat pump P-261A [P-2618).

.9 Observe decay system operation according to operating procedure A.8, Section 3.0, Limitations and Precautions.

Return Decay Heat System to Normal Standby Status Procedure

.10 Stop decay heat pump P-261A [P-261B] and place to standby status.

.11 Close DHS-032 and HV-26046 [HV-26047] decay heat system cross-tie valves. ,

.12 Close DHS-056 [DHS-055] decay heat system suction valves.

.13 Stop nuclear service cooling water pump P-482A [P-482B] and place to standby status.

.14 Stop nuclear service raw water pump P-472 [P-472B] and place to standby status.

.15 Place spent fuel cooling water system in service according to Section 4.1.

l.

( Rev. 12 A.21-9 t

L - _ _ _ _

ABNORMAL OPERATIONS (Continued) ,

7.4 Water Removal from Spent Fuel Pool Upender Pit Initial Conditions

.1 Upender pit is at nonnal operating level and needs to be drained.

i Procedure

.2 Install stop logs between upender pit and spent fuel pool.

.3 Verify transfer tube gate valves SFC-500 and 501 are closed.

.4 Move transfer pump into place at north end of spent fuel pool and close pump discharge valve.

.5 Install spool piece No. 2 between pump and eductor located in upender pit.

.6 Prime transfer pump suction line, start pump and slowly throttle open discharge valve SFC-493.

.7 When eductor suction is lost, secure pump, close discharge valve SFC-493, and break syphon on eductor discharge to fuel pool by

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opening SFC-494.

.5 Filling Upender Pit from Spent Fuel Pool Initial Conditons

.1 Upendeh pit empty or partially empty and it is desired to fill it.

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NOTE:

Verify a minimum of 15 psig instrument air to air motors in upender pit prior to filling.

Procedure , .

.2 Verify transfer tube gate valves SFC-500 and 501 are closed.

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.3 Move transfer pump into place at north end of spent fuel pool.

.4 Install spool piece No.1 betWeen pump and upender pit and close pump discharge valve.

.5 Prime transfer pump' suction line, start pump and slowly throttle open pump discharge valve SFC-493.

.6 When upender pit and fuel pool levels are equalized, secure pump and '

close discharge valve SFC-493.

k Rev. 12 A.21-10

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5, W. .

29; Q

s V :q

'A8 NORMAL OPERATIONS (Continued) ,

de M 7.6 Replacement of 1)emineralizer D-276 Resin -

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$h Initial Conditions C .1' Purification of spent fuel pool water is in progress.

W .2 Domineralizer D-276 differential pressure greater than 45 psi.

q.

Procedurs C,

,. , .3 Stop the domineralizer pump P-274.

w w .4 Close inlet valve SFC-013 and outlet valve SFC-014.

.5 Replace the resin in accordance with A.22.

[ .

. .6 Afte'r the resin has been replaced, commence purification of the spent fuel pool water in accordance with Section 4.2.

.7 Adjusting Spent Fuel Pool Boron Concentration and/or Level Initial Conditions .

.1 ' Spent fuel pool boron concentration is in need of adjustment or level

'x,.. needs to be increased.

?(.f3

^V Procedure .

.2 To increase boton concentration.

.1 Check closed SWS-510, Boric Acid Filter F-711 to BWST.

.2 Check closed PLS-468 and PLS-470, Domineralized Reactor Coolant Storage Tank to Spent Fuel Pool.

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- .3 Open BWS-511 Boric Acid Filter F-711 to Spent Fuel Pool, and A BWS-042,' Boric Acid Filter F-711 to BWST.

9 S,' .4 Run Boric Acid Pump P-705A or B until the desired amount of boric acid solution has been added.

.5 Close BWS-511.

.6 Use Step 7.7.3 below to flush -50 gallons of demineralized water through the piping.

.3 To decrease boron concentration:

[ Check closed BWS-511, Boric Acid filter F-711 to Spent Fuel Pool.

I - .1.

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...." Rev. 12 A.21-11

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ABNORMAL OPERATIONS- (Continued) -

I 7.7 .3 .2 ~ Open PLS-468 and PLS-470, Demineralized Reactor Coolant Storae .

Tank to Spent Fuel Pool, q l

.3 Run Demineralized Reactor Coolant Storage Tank Pump P-622A or B until the desired amount of desineralized water has been added.

4 Close PLS-468 and PLS-470.

.4 To increase Spent Fuel Pool level:

.1 Use 'OP B.9 to calculate the required amount of boric acid solution and demineralized water required for the desired batch i size. .

.2 Use Steps 7.7.2 and 7.7.3 above for the additions.

8.0 ENCLOSURES

. 1 Spent Fuel Cooling Water System

. 2 Purification of the Spent Fuel Storage Pool

. 3 Spent Fuel Coolant Pump Performance Curve P-272

. 4 Spent Fuel Coolant Demineralizer Pump Curve P-274 s:

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J Rev. 12 k A.21-12

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ENCLUSURE 8.1 ,

( SPENT FUEL COOLING WATER SYSTEM VALVE NO. VALVE NAME POSITION INITIAL SFC-001 Pump P-272 Suction Valve Open SFC-021 Pump P-272 Drain Valve Closed i PI-27204 Pump P-272 Discharge Pressure' In Service

~

PSL-27202 Pump P-272 Discharge Pressure Switch In Service SFC-003 Pump P-272 Discharge Valve Open SFC-022 Cooler E-270 Vent Valve Closed SFC-023 Cooler E-270 Drain Valve Closed -

SFC-004 Cooler E-270 Outlet Valve Open SFC-048 Radiation Monitor Inlet Valve Open SFC-049 Radiation Monitor Outlet Valve Open SFC-005 Spent Fuel Cooling Water System Return Throttled C.u SFC-006 Pump P-274 Suction Valve Closed SFC-019 Pump P-274 Demineralizer Return to Pool Closed SFC-499 Sample Point Closed DHS-032 Decay Heat Removal Cooler E-260A and B to Pool Closed DHS-546 DHS-032 Bypass Valve Closed DHS-054

  • Decay Heat Removal Pump Suction Header Open SFC-500 Transfer Tube No. 1 Gate Valve Closed SFC-501 Transfer Tube No. 2 Gate Valve Closed LSL-27208 SF Pool Low Level Switch In Service LSLL-27207 SF Pool Low-Low Level Switch In Service LSH-27206 SF Pool High Level Switch In Service DMW-021 Misc Water Holdup Tank Sply to Spent Fuel Pool Closed t

Rev. 12 A.).1-13

1;'

ENCLOSURE 8.1 (Continued)

SPENT FUEL COOLING WATER SYSTEM VALVE NAME POSITION INITIAL VALVE NO.

CCW-138 Spent Fuel Cooler E-270 Orain Yalve Closed CCW-137 S' pent Fuel Cooler E-270 Vent Yalve Closed Spent Fuel Cooler E-270 Inlet Valve Open CCW-017 CCW-123 Spent Fuel Cooler E-270 Outlet Yalve Throttled Nominal 3-1/2 Turns Open SFC-024 Pool Liner Leak Detection System Open, ,

Pool Liner Leak Detection System Open SFC-041 Pool Liner Leak Detection System Open SFC-042 SFC-043 Pooi Liner Leak Detection System Open Pool Liner Leak Detection System Open SFC 044 SFC-045 Pool Liner Leak Detection System Open SFC-046 Pool Liner Leak Detection System Open SFC-047 Pool Liner Leak Detection System Open  : 7.}

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DATE 1.

TIME STARTED l

^

TIME COMPLETED L '

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OPERATOR

^

REMARKS

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- Rev. 12 A.21-14 U. -

g,'. .,. . ,

u, ENCLOSURE 8.2 3E PURIFICATION OF.THE SPENT FUEL STORAGE POOL 3

i- VALVE NO. VALVE NAME POSITION INITIAL SFC-006 Pump P-274 Suction Valve Closed i BWS-013 Pump P-274 Suction from Borated Water Storage Closed 1::

4l SFC-026 Pump P-274 Drain Valve . . , , Closed s -

'T PI-27401 Pump P-274 Discharge Pressure. In Service.

$ SFC-009 Pump P-274 Discharge Valve .Open

~

DHS-049 Skimmer Outlet to Domineralizer Pump P-274 , Closed SFC-038 Vent Between Skiuser and Dominera11zer Closed

"; Pump P-274 FI-27402 SF Cooling Dominera11zer FlowJ In' Service -

~

Closed SFC-502 Sample Point

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SFC-011 Filter F-275 Bypass Valve Closed t

SFC-010 Filter F-275 Inlet Valve Open

,2 D,, .

" Open SFC-012 Filter F-.275 Outlet Valve k Closed.

SFC-028 Filter F-2_75 Drain Valve- , , ,

SFC-027 Filter F-275 Vent Valve a ,,

closed PDISHL-27501 Filter F-275 Differential Pressure ' In Service

- PDISHL-27602 Domineralizer D-276 Differential Pressure In Service Closed h*] SFC-504 Sample . Point'.

SFC-015 Domineralizer D-276 Bypass Valve Closed

(' SFC-013_ Domineralizer D-276 Inlet Isolation Yalve Open Throttled 7 SFC-014- Demineralizer D-276 Outlet Isolation Valve W SFC-029 Demineralizer D-276 Service Air Supply Closed V .SFC-031 Deaineralizer D-276 Vent Valve Closed Closed SFC-033 Dominera11zer D-276 Resin Outlet Yalve

~'

s - Rev. 12 e A.21-15 W

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+

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l i

ENCLOSURE 8.2 (Continued)

PURIFICATION OF THE SPENT FUEL STORAGE POOL VALVE NO. VALVE NAME POSITION INITIAL Closed SFC-032 Demineralizer D-276 Resin Inlet Valve .

SFC-034 Dem'in D-276 Resin Flush Water Supply Valve Closed SFC-016 Strainer Y-27603 Inlet Valve Open SFC-018 Strainer Y-27603 Outlet Valve Open SFC-017 Strainer Y-27603 Bypass Valve Closed Strainer Y-27603 Sample Point Closed -l PDI-27601 Strainer Y-27603 In Service DHS-050 -

Demineralizer D-276 Outlet to Skimmer Nozzles Closed BWS-014 Supply Valve to Borated Water Storage Tank Closed SFC-019 Purification System. Return to Pool Closed DATE TIME STARTED TIME COMPLETED OPERATOR ,

REMARKS Rev. 12 A.21-16

=

b. ..

ENCLOSURE 8.3

]9 *

. SPENT FUEL COOLANT PUW PERFORMANCE CURVE P-272 1 -

100 s

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j eel H a, C. .~'

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a 20 18< 20 ,

BHP 10 CAPACITY GPM PUMP PERFORMANCE CURVE (FOR WATER)

Rev.12 A.21-17 4

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4 v-ENCLOSURE 8.4 SPENT FUEL COOLANT DEMINERALIZER PUMP CURVE P-274 ,

320 280 240 w

6 200 M%

4 51%

w 56 %

Z 60%

160

)

140 -

{

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60%

120' w

I un N .

40 i

150 175 200 225 250 275 300 0 25 50 75 100 125 CAPACITY GPM PUMP PERFORMANCE CURVE Reference NCR 7234 Rev. 1 END Rev.12 e A.21-18 ( .

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