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Evaluation of Auxiliary Feedwater Flow Requirements for High Pressure Safety Injection Pump Conversion.
	ML18047A522
Person / Time
Site:	Palisades
Issue date:	08/11/1982
From:	; CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.)
To:	;
Shared Package
ML18047A521	List: ML18047A520; ML18047A522;
References
	NUDOCS 8208180016
	Download: ML18047A522 (78)
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..

l) - . *-**

EVALUATION OF AUXILIARY FEEDWAlERFLOW REQU IRB-1ENTS FOR HIGH *PRESSURE-SAFETY* INJECTION* PUMP*

CONVERSION .

Rl&UlATDRY . DOCKET FllE COPY 8208180016 820811 PDR ADOCK 05000255 P PDR

~

TABLE OF CONTENTS Page.No.

1.0 INTRODUCTION

1 1.1 Purpose 1 1.2 Scope 1 1.3 Background 1

2.0 REFERENCES

2 3.0_ SUftt'tARY OF EVALUATION 2 3.1 Acceptance Criteria 2 3.2 Assumptions 3 3.3 Results 3

4.0 CONCLUSION

S 4

Figure A -

case 1:

List of Figures AFW and HPSI Pump Curves Fi_gures 1-19 Case 1: 300 GPM Total Flow To Both Steam Generators (150 gpm/SG)

Case 2:- --

Figures 1-19 Case 2: 400 GPH Total Flow To Both Steam Generators (200 gpm/SG)

case- 3:- -

- - Figures 1-19 Case 3: 325 GPH Total Flow To One (1) Steam Generator (Zero Flow to the Other SG) i

.: 1 -

1.0

1.1 INTRODUCTION

Purpose The purpose of this report is to evaluate the Auxiliary Feedwater (AFW) flow requirements for the Palisades Nuclear Plant. This was done to detennine the capability of an existing High Pressure Safety Injection (HPSI) pump to function as an AFW pump.

1.2 Scope This anaTJsis applies only to the Palisades Nuclear Power Plant.

Speeif1cally, it addresses the auxiliary feedwater flow rate re-quired to automatically maintain decay heat removal but does not encompass subsequent plant_cooldown.

Adequate flowrate is the only criteria for acceptance of the pump conversion considered in this* analysis.

1.3 Background As a result of TMI and subsequent studies (References 2.1 and 2.2) the importance of the Auxiliary Feedwater System (AFWS) in mitigating accidents has been highlighted. In light of this, the NRC Staff has made an assessment of the relative reliability of the AFWS at all operating plants for various loss *of main feedwater transients. The Palisades Nuclear Plant was assessed as requiring improvement in its overall level of reliability.

One of the main areas of concern was the fact that the AFW discharge lines of the two existing AFW pumps conbined into a single header through which all AFW must flow. To improve the overall reliability

. of the AFWS, it has been proposed that the third existing HPSI pump be converted so as to function as an Auxiliary Feedwater pump.

Figure A shows the relative capacities of the HPSI and AFW pumps indicating the somewhat lower flow rate of the HPSI pump.

l.

I

-* 2 -

1.3 Background -- continued To detennine the capability of the HPSI pump to function as an AFW pump, an analytical evaluation of the AFWS flow requirements for Palisades, was perfonned.

2.0 REFERENCES

2.1 NUREG 0635, Generic Evaluation of Feedwater Transients and Small Break LOCA accidents in CE Designed Operating Plants, January 1980.

2.2 NUREG 0737, Post TIU Requirements, October 1980.

2.3 FSAR, Conswner Power Canpariy, Palisades.

3.0

SUMMARY

3ol Acceptance Criteria The analysis was perfonned using the CE Long Tenn Cooling (LTC) plant simulation code to detennine the NSSS response following a total loss of main feedwater. Results were considered acceptable if the secondary ~eat sink was maintained as reflected by stable prifl'IClry system temperature and pressure.

This resulted in acceptable delivery rates that are lower than the flow rates necessary to match the steam flow required to remove decay heat, as specified in Table 9-11 of the Palisades Final Safety Analysis Report (FSAR) (Reference 2.3). The flow rates described in the FSAR are conservative values which do not credit the steam generatar inventory, which is an additional source of decay heat removal. With the lower flow rates it has been shown that the steam generator liquid volume will decrease during the initial portion of the transients but then subsequently increase as the AFW flow rate "catches up" with the decreasing decay heat. Hence, the steam generator is not drained and primary to secondary heat transfer is not degraded to a point beyond a few degrees increase in hot leg

temperature.

\,/

. 3-3.2 Assumptions The following assumptions were used in the analysis of the total loss of main feedwater flow:

1. The core has been operating at 2650 MW prior to reactor trip.

This maximizes the decay heat load to the steam generators (SG).

2. The present AFW pumps (one motor driven and one turbine driven) are unavailable and that the converted HPSI pump is the only source of AFW fl ow.

3. A 120 second time delay from demand to delivery was selected for all cases.

4. The AFW temperat"ure was 100°F and the SG secondary pressure was maintained at 900 psia.

5. The following HPSI flowrates were analyzed:

Case 1: Auxiliary Feedwater (AFW) ..flowrate of 300 GPM is supplied to two steam generators (150 GPM each).

Case 2: AFW flowrate of 400 GPM is supplied to two steam generators (200 GPM each).

Case 3: AFW flowrate of 325 GPM to one steam generator (no flow to the other SG).

3.3 Results As can be seen in the resulting plots, the minimum secondary inventories.

(indicated by wide range level} are on the order of 8 to 20 percent of instrument span*. It can also be noted that the steam generator level is recovered so that the steam generator is not drained~

. (Although levels fall below narrow range indication, level can still be monitored due to the fact that Palisades recently installed a wide range level indication systen:i.) Loop temperatures as can be seen, level off _gradually without increasing more than 5°F and without impacting system pressure *

*NOTE: The plots prepared by the computer present secondary level in per cent of span between the WR (wide range) level instrument taps. This is not the sane as the value that would be read on the WR SG level indicator. The scale on the WR indicator reads from -138% to 0 to+100%; with 0 to +100% corresponding to the span covered by the NR indicator.

-* 4 .;. -

4.0 CONCLUSION

S Following a review of the results gathered in the analysis, CE concluded that the HPSI pump is capable of functioning as an AFW pump to automatically maintain a secondary heat sink following a loss of feedwater. In functioning as such the HPSI pump must deliver at least 325 GPH to one steam generator alone or at least 300 GPM to both steam generators (150 GPM each). Available data indicates this is well within the pumps capability with suitable allowance for recirculation., wear and system losses.

.1

/jcp.

.. U*E n 10 X 10 TO " INCH 1 JC 10 INCHES ICEUFFD.

dsER CO.....

u 1. 46 1320 ...

!:). .

H+H+J.H~+>>H+H++H+t+H+++H+HH-+HIH+t++++HHH--H-H+++H l F1gure A

AFWS FLOW ANALYSIS

Case 1: 300 GPM Total Flow to Both Steam Generators List of Figures Figure Description 1 -core Power 2 Pressurizer Pressure 3 Steam Generator A Pressure

4 Steam Generator B Pressure 5 Steam Generator A Auxiliary Feed Flow (GPH) 6 Steam Generator B Auxiliary Feed Flow (GPM) 7 Pressurizer Level 8 Steam Generator A Narrow Range Level 9 Stearn Generator B Narrow Range Level 10 Loop A Temperatures 11 Loop B Temperatures 12 Steam Generator A Wide Range Level 13 Steam Generator B Wide Range Level 14 Steam Generator A Steam Fl ow

15. Steam Generator B Steam Fl ow 16 Pressurizer Wide Range Pressu~

17 Reactor Coolant Core Flow 18 Steam Generator A Auxiliary Feed Flow (lbs/sec)'

19 Steam Generator B Auxiliary Feed Flow* (lbs/sec)

---~----~-*** ... ***-*-** .. *.

... FIGURE 1 PALISROES LMFW CASE 1 CORE F'OwER 100 90 80 70

-::z

~

1.1.J u

er::: 60 1.1.J C;...

V-u.;

3 0

C;...

50 1.1.J e:::

0 u

40 30 20 10 a 36GG 480G cs::CONSSJ

F!GURE 2 PAL I SADES l MFW CRSE. l PZR PRESSi.JRE

2500 2400

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

2300 2200 Cb en c... 2100 LLJ CZ::

(/)

(JJ w 20CG.

CZ::

C;._

~

=""

C;._

1900 180C 1700 1SGC-

... . I*

I

~-

I isac ~l~~~--1.~_;,_~~-1-~~~-~'~~~~-'-~~~-'-~~~._.

1200 2400 3600 TIME (SECCNSSJ 4800 SGGG 720G

. FIGURE 3 PALISADES LMFW CASE 1 S.G. ~ ~RESSURE 2000 .--~~~~~~~~~~~~~~~~~~~~~~~~~~

1800 1600

. c:

1400 en

-Ci.-

LU e::

1200

(.~

L..J Ct:

"- 1000 er' t.')

(.~

80G 4CC 200

c 1200 2*~0C 3600 TIME CSECCNDSJ 4800 SCGC

FIGURE 4 PALISADES LMFW CHSE 1 S.G. 6 PRESSURE 2000 --~~~~~~~~~~~~~~~~~~~~~~~~~~

1800 -

1600 -

~

1400

~

UJ 0:::

(.")

(.')

1200

~

0:::

~ lOOC cc D

en 8,., r.

""""' -- ~*

sec - 400 -

...?Qt"':"" -

- -* ------- .. 0-** G '--~~~~*~....;.....~~~~'~~~~...1.-~~~--=-'~~~~~'~~~-'i 1200 2400 3600 4800 SOGC 720G TIME CSECCNDSl

FIGURE 5 PALISADES LMFW CASE 1 S.G.* ~ AUXILIRqy FEED FLOW CGPMJ 500--~~~~~~~~~~~~~~~~~~~~~~---

450 -

400 -

~

(!)

~

0 350 LL c

i.a.J LU LL 30G

~

c: ,.,c. 5 r.

OJ x

J c:

er

~

,.,nr C.IJOJ

(.")

150 100 ....

50 I

o

--*-*-**------ ---- - .*O Ii 1200 2400 36CC 4800 60CO 720C TIME (SE.CCtlCSl

FIGURE 6 PALISADES LMFW CASE l S.G. B AUXILIARY FEED FLC~

SOG ....-~~~~~~~~~~~~~~~~~~~~~~~~--,

450 -

400 -

J:

~

CJ

r 350 0

_J LL.

c

.w La.J LL.

300 Ck-:

~

- - - .. . --* .. X

_j 2SO

J c::

c:i 0

"On\J 150 100 -

50 -

I ol_i~------~~-__._~__.__~__._~~

C !20C 2400 3600 48CO 600C 7200 TIME (SECCNDSl

FIGURE 7 PALISADES LMFW CASE l

---* PZR LEVEL.

100--~~~~~~~~~~~~~~~~~~~~~~---.

90 BC 70 z

Li.J u

V- 60

~

-C;...

UJ 50 UJ

_J

-- C'.t:

~

C;...

40 30 20 10 "Or.

u 2400 3600 4800 6000 720C TI ME ( SE_CCt*.J!JS l

., ***-~*- -4**

FIGURE 8

. PALISADES L MFW CASE 1 5, G. i::; NARROW RR~GE t:,....V,....L I

t:

L.

100 90 r

80

~

z w

u c::: 70

~

c..

tLJ

> 60 LLJ LW Cl z

c: I.

c::: 50

~

0 c:::

~

c::

z 4.0 c=

Cl) 30 20 1Q I

-*---~----Q~i-~---,.--,~0-0-------~----~---6-n~~-n~-~-~~nr

~ - 2400 36GC 480G --- IC..~V TIME (SECONCSJ

. )

FIGURE 9 FRLISADES LMFW CASE 1 s.c. 6 NARROW RR~GE LEVEL 100--~~~~~~~~~~~~~~~~~~~~~~---.

90 80

~

z LU u

~

l.LJ 70

-~

~d l.LJ

> 60 LU i.LJ 0

z c:

~ 50

~

0

~

er.:

c::

z. 40 cc ..

t,')

(,")

30

- --- . -~- -~

20 10 I!

I 2400 3600 4800 720G TI ME CSECOf*lCS l

FIGURE 10 PALISADES LMFW CRSE l LOOP R TEMPERATURES 6~0,.........~~~~~~~~~~~~~~~~~~~~~~--.

620 -

600 -

I.&..

t!>

UJ c

(.")

580 w

ci::

d I-

~

0:: 560 LW

~-

l:

~

I- ~

I-z.

c::

-J I

540 0

0 w

c: .

~

5ZO - ~

0 0

-J s~r.

480 -

450 -

4 4 0 ..___ _ __.1_ _ _ _....._1_ _ __.1_ _ _ _..._1_ _ ___.l..___ ____,i

- - --*--C 1200 2400 3600 4800 6GOC 7200 TIME (SECCNSSJ

FIGURE 11 P!1LISFiDES LMFW CASE. l 64Q _______L_o_o_P_s_c_o_c_L_Fi_~_T_T_E_M_P_E_R_A_:_uR_E________,

620 600

~

"c o..,;

en 580 UJ ca:::

~

a: 560

~

UJ

~

2::

o..,;

~

~ 540 z

a:

_J 0

0 u

cc 520

~

0 0

soc 480 460

_ ___._ _______ 440 -_G_ _ _1_2.._0_0___2_4.._0_G___3_6..._0_G___4_8..._0_0___6_G.....O-C--_ _7___,2GO TIME (SECCN!:Sl

FIGURE* 12 PAL I SADES L HF-W . CASE 1

.S.G. q WICE RANGE LEVEL 100--~~~~~~~~~~~~~~~~~~~~~~---..

. 90 80

.z...

Li.J u 70 ca::::

~

_J

~

> 60

~

1J.J C)

z c: 50 ca::::

. 1J.J CJ er 40 0

(/)

30 20 10 i

~***--***. ---0 ~'-~~~~~~~~~~~~~

c 1200 24CG 60CG 36GO 48CG 720G TIME (SECONCSJ

FIGURE 13 FALI SADES L.MF~.: CASE 1 .

S-G. B WIDE RANGE l.EVEL 100.--~~~~~~~~~~~---~~~~~~~~~~~---.

90 80 I-z I.Li u 70 c::

LU

~

w 60 LLJ I.Li

(!)

z CI:

.ez:::

50 1.1.J CJ

3:

c:l 40 c..:>

en 30 I "0

10 c ,* c..

?Qr.\J 2400 360G 48CG TIME (SECCNDSl

FIGURE 14

PALISADES LHFW CASE 1 S.G. A STEAM FLOW 1000 --~~~~-~--~~-~-~--~--~-~--~---.

900 BOO CY-

c:

2:::

cc . 700

_J 0

z c:

en

=> 6GG

0

c:

I-0 500

-~ c:

~

I-(,,")

,*r nIJ riIJ er ..

0 en 300 I!

200 100

--*--------*-0* _ _ _ ___.__ _ _ _..___ _ __.__ _ _ _...___ _ ___..._ _ _~

,. 2~0G 3600 480G 6CCC

"" TIME tSECCNCSJ

.. FI GUF:E 15 PRLIS~DES LMFW CRSE 1 s.G. 6 STERM FLOW 1000 --~~~~~~~~~~~~~~~~~~~~~~~~-,

900 BOO CY-

c cc

-J 700 c

z c:

CIJ

> 600 Ii 0

c .,

~

3:

0

...J

~

5CO

'1:

c:

W.J

~

(,.")

,I cc 400 ~

0

(,") I 300 ..

20G I

100 II I '

*-----*----.. __a _L----'-----------'~--.......' _ _ _._._,_ ____.

1200 ~40G 3600 4800 SGGO .,~c I ,;.. IJ TI ME ( SE.CCNSS l

--- -1 FIGURE 16 PALISRDES LMF~ CASE i PZR WIDE RA~GE FRESSUR!

4000 ~~~~~~~~~~~~~~~~~~~~~~~~~~-

3600 3200

-a:

Cf.)

2800

~

UJ ez::

=>

Cf.)

C.') 2400 LLJ a:::

~

LLJ 0

z c:

20CG v.

UJ 0

!: 1... 5r.r vv e::::

~

1200 soc 40C a "On 4... c.. oJ 2400 360G 48CO so cc '72CG TIME !SECCNDSJ

FIGURE 17 PRLISRDES LMFW CASE 1 REACTOR COCLRNT CORE FLOW 110 ----------~----------------------------------------.

100 90

~

z

!.IJ u

Ci:::: 80 LU Cl..

2

o

-I

'* 70 LU Ci:::

0 u

~

z SC c::

0 0

u ci:::: 50 0 ~

~

w c:

LU Ci::::

40 30 20 I

10-'~~~_._~~--'~~-~--~~~---~~~...._~~--

c 1200 2400 3600 4800 so co 7200 TI ME r SECOtJSS J

FIGURE 18 PALISADES LMFW CASE 1 S.G. ~ RUXILIR~Y FEED FLOW

500.--~~~~~~~~~~~~~~~~~~~~~~~---.

450 400 u

~

I c:J ,

en co

...J 350

~

0

...J LL 300 c

...J w

LL Ct.: ?5~

c::

'"' u x

J c:: 20G er ..

C.'J (f) 150 100 50 a u,..___. .____.__ __.___________.___ _____.

1200 2400 360G 4800

"" 6COO TIME (SECONSSl

I I .

I .~ FIGURE 19 PALISADES LMFW CRSE 1 5.0. 6 RUXIL.IR~Y FEED FLOW 500 --~~~~~~~~~~~~~~~~~~~~~~~---

450 400 u

i.W c.n C,")

cc 350

-...J

~

0

...J LL.

300 c

i.i..i

~

1.6..

c::: "Sr.

c.. u

---x c::::

c:: 20G co ..

t:J

(/)

150 50

--~---------~ c-.~~-!-2.~o-o~~-2-4~,o-o-.~~-3-s~o-c~~-4-a~o-o~~~s-o~o-c~~-~-i2~cc TIME rsE.CCNCSJ

AFWS FLOW ANALYSIS

- Case 2: 400 GPt1 Total Flow to Both Steam Generators List of Figures Figure Description 1 _tore Power 2 Pressurizer Pressure 3 Steam Generator A Pressure 4 Steam Generator B Pressure 5 Steam Generator A Auxiliary Feed Flow (GPH) 6 Steam Generator B Auxiliary Fi!ed Flow (GPM) 7 Pressurizer Level 8 Steam Generator A Narrow Range Level 9 Stearn Generator B Harrow Range Level 10 Loop A Temperatures 11 Loop B Temperatures 12 Steam Generator A Wide Range Level 13 Steam Generator B Wide Range Level 14 Steam Generator A Steam Flow 15 Steam Generator B Steam Flow 16 Pressurizer Wide Range Pressure.

17 Reactor Coolant Core Flow 18 Steam Generator A Auxiliary Feed Flow (lbs/sec) 19 Steam Generator B Auxiliary Feed Flow (lbs/sec)

FIGURE 1 PALISADES LMFW CRSE 2 CORE F'OhER 100...--~~~~~~~~~~~~~~~~~~~~~~-----,

90 80 70

~

z w

u Ct:

Lr.J SC t...

ca:::

LW

~

0 Lr.J

~

SC l 0

u 40 30 20 .

~**--* c 12DC SGGG

FIGURE 2 PALISADES LMFW CRSE 2 PlR PRESSURE 2500 ,._.------~--~---~~----~~-~---

Z400 I 2300 2200

-c...

c:

( /')

i.;

2100

~

CJ:>

(,")

i.;

c:::

ZOGG Ca..

~

'I.I 190G 180G 1700 16GC I____

-*------*-1scc ....

,.. ~___. . . . .__________. _______.______.

... 120G 2.ioG 36GG 48GG SGGG 720G TIME (SE.CCNSSl

FIGURE 3 FALISRDES LMFW CRSE 2

. S.G. q !='RESSURE 200C --~~~~~~~~~~~~~~~~~~~~~~~~~....,

1800 1600

- 1400 cc

(,"J CL

~ 1200

~

)

(,')

La..i e:-:

c.. lOCG er u

(/)

8CG sec 40G 200

r

"" !200 2*tOG TIME:

36GG 48CG 6CGG 720S

F ! GURE 4 PALISADES LMFW CASE 2 S.G. B PRESSURE 2000 --~~~--~----~~~~~~~~~~~~~~~~~~~-

1800 1600

- 1400 a:

(,,')

0-LLl

~

120G

(,,')

LLl er.:

c... lOGG cc 0

(,')

gnr, Ww sec 40C 200 0 ,__~~~..........~---~~*~~~~~~~~-i...~~~~"--~~~-'

\.;

.. 1 ".>Q'"'

"' u 2-~0C 36GC 48CG. SCGG TIME (SECCNCSJ

FIGURE 5 PALISADES LHFW C~SE *2 S.G. q GUXILIA~Y FE[O FLC~ CGPMl 500 ,.-~~~~~~~~~~~~~~~~~~~~~~~~~-.,

450 40C

-~

c:..

- t!:>

3:

35G 0

...J 0

..i 30G U,,j

~

Ct:

e. ---

c:: ,.,~r.

I '" ....

x

=>

er.:

c:'

20C t.'.)

(,")

1

.I. 5r.

tJ 1

.L Qr"'.w SC l20G 36GG 48CG 6CGG TIME !SECf.HJSSl

I -FIGURE 6

J PALISADES LMFW c~s~ 2.

S.G. 6 AUXILIR~Y FEfD FLCW 500 .--~~~~~~~~~~~~~~~~~~~~~~~~~---.

450 ....

40C -

~

- (!)

3:

0 350 ....

_J

!.L..

c 30G ....

~

w Cr':

c: ,., .. r.

'"~..;

x

.. ~ --- -- ::I er:

cc 2CC

(.")

lSC .... I lOC 50 I!

oli~~~_._-----~..__~___,_I~~--'-~~-'-~---'

C :20G 240G 36GG 48CG SGGO 720C TIME (SE:CCNSSl

f!GURE 7 '*

PALISADES LMFW CRSE 2 PZR LEVEL lOG .--~~~~~~~~~~~~~~~~~~~~~~~----.

90 80 30 20 10 oI *

- - --*-*- -- ****-- --** r.... 120G - 2400 36GG 48CG 6CGG 7:20G TIME (SECDNSSl

FIGURE 8

.. PALISADES LMFW CASE 2 S.G. R NA~ROW RANGE t.EVEL lOG ......-~~~~~~~~~~~~~~~~~~~~~~~~---.

90 80

-.z....

w u

~

w 70 C-w

> 60 LL.i LA.l C!I c:

c::: 50 0

e::

Ct".

c::

z 40

- . -*---**--- ***c: ~

(.')

30 20 10

--*---- * "0'"'

'- \J 2~00 36GC TIME CSECCNSSJ 480G . 6GOG

_J

F!GURE 9 PRLISROES LMFW CRSE 2 5 r. 6 ~~A'""RO': R,..."Jr:F=

10G--~~~~~~*-u_*~~*~~~-~~_n

' EV~'

__-_*-~L_._. __t._L*~~~~~~--

90 80 I-z

~

u et.: 70 UJ

~

LLJ

> 60

-LLJ

""-i t!J

?.

c:

c::: SG

J:

0 c:::

Ct:

c:

---*- .:?. ~c a:

{.)

(JJ 30 20 10

..... 0 llu.....:- ---~--__._ _ _ _ _ _ _ _ _ _ ~---1..'. _ _j r"

1200 36GG

48CG SCGG 720G

"" TIME CSECGNSSl

.. FIGURE 10 PALISADES LMFW CASE 2 LCCP R :EM~E~R:URE5 640 --~~~~~--~~~~~~~~~~~~~~~~~---.

620 600

~

~.,

LW 0

en 560 w

Ci:::

i c: SSC er:

LW

".l::

~

I-I-

z 540 c:

...J c

0

(..)

.a:. 520

~

0

-~---*----- - -

C)

SGC I

480 I 460

~~o*-~-~~~~~~~--~~~~~~~~~~~~~~~~

c !200 2400 3600 48GG 6CCO "720C TIME CSECCNCSl

FIGUF:E 11 PALISADES l.MFW C~SE 2 LOCP 6 COCLR~T TEM~EqRTURE 540 --~~~~~~~~~~~~~~~~~~~~~~~---.

. 620 600 L!...

c.:>

u.;

Cl c,-,

560 LW ei:::

l

~-

~

ei::: 56G u.;

l:

.a..;

...... ~40

'2.

ct:

0 0

w c 5.-:-n

'-w

~ ~*

0 0

50G

~SG 120G 2*tOG 36GG 48CG EOCC TIME rst:CCNCSJ

FIGURE 12 PALISADES LMFW CASt 2 S. G. q HI DE RR~JGE LEVEL 100 --~~~~~~~~~~~~~~~~~~~~~~~~--..

90 .

so

z LU u

Ct:

70 LU 0...

LU

> 60 LU

l.i..i C!J

z a: 50 Ct::

!JJ c

ii:

c::' 40

(..)

en 30 20 10 al.___

-c

~--.-l'"------..1-~

120G 240G 36GG 48CC SGCC 720G TIME rst.CCNSSl

FIGURE 13 PALISADES LMFW cqsE 2 100 ,_.______s_._G_._s_w_I_D_E_R_.R_~_.o_~E_._t_.E_vE_L_._ _ _ _ _ ___,

90 80 7-LU u 70

~

u.i Ci..

-w

> SC L:.i I

.w

. - CJ z

c::

C:'.:

w C.J SC a: 40 0

C.l 30 20 10

--*---*- --- --* 0 -*~c----1-~-'o-G_ _ _2_.~.:...o-0___3_6-'G-G_ _ _4_8.:...C_G___6_C_JC~G---.--;--"2Qc TIME !SECCN!:Sl

t

. FIGURE 14 PALISADES LMFW CRSE 2 s:G. q 5TEA~ FLCH lOGO -----------------~---------....,

900 ~

I 800

CY.

c 2::

cc 700 c.,

7.

c::

C.':>

0 600 Ii

c

~

0

_J

~

SGG

z::

c::

~

Cl:>

40G tr ..

(.:)

. *1

'-"' 30G ;

I 20G lOG

0 ~--*-1-2_..o_o_*---2-*~*.._o_o___3_6_r.._u_G_ _ _4_8_...C_*G_ _ _6_0....r.G_C_*___7__,20G

' ME* ( SC'-*....r* r~ Nrw S J' T .I.I ..J*

F !.GURE 15 PALISADES LMFW CASE 2 s.c. 6 STEAr FLOW lOGG --~~~~~~~~~~~~~~~~~~~~~~~~--

900 BOO 0-:

c

~

_J 70G c

z

~

C.'J

J 0 6GG

c t-

~

0 500

..J

~

I:.:

~

t-C.')

400 a::

(,;)

(/)

300 200 100 120G TIME (SE.CON!:SJ

FIGURE 16 PALISADES LMFW CASE 2 PZR WICE RRNGE PRESSURE 4000 -----~----~~~~~~--~~-~~~~~~~-

3600 3200 c::

( IJ 2800 Ci..

L&J c::

~

C,,')

C,,') 2400 L&J C':

c...

.z i.i.i C!:J c:

Ct.:

u.i 2000 c

160C ez::

~

1200 800 400

..... **- --- ____ o_ ....----"---____.________..____________._______.

C 1200 2400 36GG 480G SGGG ~-.,or.

I L. .J TI ME ( SECCNCS l

' I F ! GURE 17 FRLISROES LMFW CASE 2 REACTOR COCLA~T CORE f LCW 110 - - - - - - - - - - - - - - - - - - - - - - - - - - - -

100 90

~

z w

w er:

Li.i 80 Ci-0

_J

~ 70 Li.i c::

r 0

u

~

z SC c::.

0 0

u Ci! 50 0 ~

~

w c::

Li.i ti::

40 30 20

n

.L.>J. - - - - - - - ' - - - - - - ' - - - - - - - - - - - - ' - - - - - - - - - - - - - - '

w 1200 2~00 36GG TI ME ( SECOf*JCS l 480G SCCG 720G

FIGURE 18 FALISAQES LMFW CASE 2 s.G. R GUXIL.IRC\Y FEtD FLCW SGC --~~~~~~~~~~~~~~~~~~~~~~~~~~

450 .

u Lo..i en 40G en c::::> 350

x

_J 0

_J Li..

30G c

~

r

"'-J u...

~

c: 2SG

'X

~

c: 200 c= .-

~

(/')

150 100 50 I --~~~~~~~~~~~~~~~~~~~~-

o*~--~~'~ ~~~~~~~~~~~~~

c !20C 2~00 36GG 48GG 6GGG 720G TIME CSECCNSSi

FIGURE 19 PALISHDES LMFW CRSE 2 S.G. S GUXILIH~Y FElD FLCW 500 -------------------~~--~~---

450 400

-c..,

u

~

en cc 350

...J

3:

0

...J Li-30G c

~

UJ Li-r ,,5~

C(: '- - - . -- **- .. --- ---

.,,; - -~-.

c:

x

J er: 200 ~

co c.:>

U')

15C 50 0 ._._---~-----'-------'----..__ _ _ ___..__ _ ___.-. --***---*---

c 1200 2~00 36GG 48CG 6GGG TIME rsECCN!::SJ

"\..

AFWS FL0\-1 ANALYSIS Case 3: 325 GPt1 Total Flow to One (1) Stearn Generator List of Figures Figure Description 1 ~re Power 2 Pressurizer Pressure 3 Steam Generator A Pressure 4 Steam Generator B Pressure 5 Steam Generator A Auxil 1ary Feed Flow (GPH) 6 Steam Generator B Auxn iary Feed Flow (GPM) 1 Pressurizer L*ve1 8 Steam Generator A Narrow Range Level g Stearn Generator B Narrow Range Level 10 Loop A Temperatures

- 11 Loop B Temperatures

12 13 14 15 Steam Generator A Wide Range Level Steam Generator B Wide Range Level Steam Generator A Steam Flow Steam Generator B Stearn Flow 16 Pressurizer Wide Range Pressure*

17 Reactor Coo1ant Core F1 ow 18 Steam Generator A Auxiliarl' Feed Flow (lbs/sec) 19 Steam Generator B Auxiliary Feed FlO\'I (lbs/sec)

FIGURE l PALISADES LMFW cqsE 3 CORE PO~iE.R

lOG 90

--~~~~~~~~~~~~~~~~~~~~~~~~~-

BG 70

~

z i....i u

~

SC

~

Cr'.

LU 0

c. ..

SC l.&..i c;::::

C' u

40 3C

... *.J 10

-~--~ ~--~-~~~~~~ ~

2~00 38CG A grr.

"T * .., ,J 6CCG .., ..,or IC..* 'oJ TI MC. CSE.CCNSSl

FIGURE 2 PALISADES LMFW CASE 3 PlR PRESSURE 2500 --~~~~~~~~~~~~~~~~~~~~~~~~~~~----.

2400 230G

""Or.

c::

~

C-LLJ 2100 Ct::

(;')

(,')

LLJ et.:

20CG

~

1900

~

19CC 170C 16CC c 1200 2*~0C 36CG 48CC 6CGC TIME !SE.CCNCSJ

' ,"J FIGURE 3 PAL.ISROES LMFW CASE. 3 S.G. R ~RESSJRE:

20CG.--~~~~~~~~~~~~~~~~~~~~~~~~~~

1800 16CC a-:

1400

( /)

-Ci...

~ l20C c:::

-.J en

(.")

&..I c:::

c.. lOGC er t.')

en I I I !

o~Ic~--~~--~---~~---~_._~--~I 2*10C 36GC 48CC 6CCG 72CC TIME=. (SECONSSJ

FIGURE 4 FALIS~DES LMFW CASE 3 S.G. 5 PRESSJRE

. 20CO--~~~~~~~~~~~~~~~~~~~~~~~~--.

180G 1600 rr..,

6 ..,

40C

!200 240C 36GG 48CC SCCG ...I '-., 0 f"

-.J TIME ! SE.CCNSS J

FIGURE 5 PAL I SADES L MF W C~SE 3 s.G. R quxILIRRY FEED FLCW CGPMJ 500 --~~~~~~~~~~~~~~~~~~~~~~~~~--

450 -

400 -

2::

~

(!)

0 350

_J

~

c

~ 300 -

~

.~

Cl':

Ct:

x "5r.

"- u C!:

er 20C -

t;)

C.")

150 -

ICC ' -

50 -

,. I

,,~***I u I I I I

- -*----* *-* - --'\;I 120C a~

3.6GO 48GG 6GGC 720C TI ME. rsE"~* .... .. J' Jrs1 11

FIGURE 6 PALISADES LMFW CGSE 3 S.G. 6 ~UXIL!R~Y FE~O FLOW 500 ,...-~~~~~~~~~~~~~~~~~~~~~~~~~~

450 400

~

c-

c C!>

350 0

_J

~

c 30C w

~

Ct:

c:

"'5r c.. -.I x

c:

c: 200

(.')

'1')

,.I. 51"w 100 50 6CCG '72GC TIME ~SECONSSl

FIGURE 7 FAL I SRQES l MF W CRSE 3 PlR LEVEL 100 r-----------------------------

90 80 70 I-

z

!.o.i

(..)

CZ:: SC L&J

~-

w

> 50 lLJ

_J co::

"to.I

~

.,A ..,

('I 30 20 10

- * - - - - ----- -- ff ....__C___!_2_.0._r._,,.._____z_. i. .O_G_ _ _3_5~C-G-*___4_8..._C_G_ _ _

S_G.._G_C___..,-;-2QC TIME. fSE.CC~JSSJ

' \

FIGURE 8 PALISADES lMFW CASE 3 5 .G. ~ NR~ROW RA"*lSE l.EVEt.

100 --~~~~~--~~~~~~~~~~~~~~~~~---.

90 80 SG 40 30 20 io r I l _

**---.a __ __.______..___ _ __.__ _.....__ ___.I c !20G 2400 36CO 48CC SCCS '7200 TIME !SECCrJSSl

... \

FIGURE 9 PALISADES LMFW CASE 3 S

G

6 NA!:\ R0 ~l RAt..J GE L E VE l.

100 . . . - - - - - - - - - - - - - - - - - - - - - - - - - - - .

90 80

~

z LLJ u

~ 70 LLJ c...

LLJ

> 60 LLJ t!>

z a:

~ 50 z

0 Ct!

C:"'

c::

z 40 cC C.')

(,')

3C 20 I -

10 1!

~

_ ----""'----"-----~-----'------'"-----

____ Q_ ....

60GG i20G

!20G 2400 360G 4BCG TIME (5E.CDNSSl

'l FrGURE 10 PALISADES LMFW CASE 3 LOCP A TE~~ERA!URES 640--~---~~~~~~~~~~~~---~~~~~~~~--

620 SCG

~

c

. en LW 560 c:::

ct:

Ct: 56C LW

"*l :

~

...... .54'0

7.

c:

0 0

w a: 520

~

0 c

sac 480 460

~---~m.~1~~~~~~'~~~I

~

C !200 2~0G 36GC 48CG SCCG 720G TIME rSECCNSSJ

FIGURE 11 PALISADES LMFW CRSE 3 LOOP B CCCLR~T TEM~ERRTURE 6~0 --~~~~~~~~~~~~~~~~~~~~~~~---.

620 -

sec -

.l.i c

(,,")

IJ.J 560 ...

Qi::

c:: 560 ... ~

CZ::

IJ.J 0...

~

..... ~

~

?.

540 --

a:.

0 0

u s"'n CJ

~

'- "..J 0

0

..J 5r.r ww ..._

48C i-460 -

I I

- * - - - -- -;r~*o ._____,i.____ """'1_ _ _ _..... i 1 _ _ _ _..__1_ _ _ _..__1_ _ _......

0 120C 240C ,35GC 48GG 6CGC *7200 TIME fSECCNCSl

FIGURE 12 PALISR!JES LMFW Cr:iSE. 3 S.G. q t~IDE RRt...JGE LEVEL.

100 --~~~~~~~~~~~~~~~~~~~~~~~~~--.

90

so z

i.W u

Ct.:

70 w

a..

L6.J

> 60 w

.w CJ 7.*

er

~

5G u.i

-c

x 40 c:

0

(,)

30 10 c 1200 240C 36CC 48CG 6CGG 720C TIME. (SECCNSSJ

FIGURE 13 PALISADES LMFW C~SE 3 s.G. s* l.JIDE RA"JGE LEVEL IOC..-~~~~~~~~~~~~~~~~~~~~~~----.

90 80

-*z

~

UJ u 70

~

LL.;

-Cl..

-w> SC I L:.,;

i.iJ 0

z c: 50 Ct.:

~

-c co 40 t;')

"' 30 20 10 n !20G

--*-- ---*--- u 2400 36CC 48CC SCCG ~-..,or I '- ;.J TIME f SECCNSSl

FIGURE 14 PALISRDES LMFW CASE 3 S.G. ~ STER~ FLOW 1000 .-----------------------------------------------------

900 800

~

2::

CD 70C c

z

~

Cf.)

0 sec

~

0

_J 5rf"'

i.JoJ

~

z:

a:

..J C."J 400 '

er

. (/)

3CC "On c.. """

100 f~t4J~. ~.Jt~.

1

*1 *.*. L~,: ... .

~;.~- ~

'~ ** ..

. I 0 ._________._________..________..__~--~-1...~--~~'--~~--~

- - - . -***-*--*-*-- -- -f"I*

llJ 1200 2400 36GC 48GC 6GGG 720G TI Mt. 'SE.COMCS l

FIGURE l 5 PALIShDES LMFW CASE 3 S.G. B STEAM FLCW lOOC --~~~~~~~~~~~~~~~~~~~~~~~~~~~

90C BOG er=

c

~

cc

...J 70G Cl 7.

a:

en

> 5r.r.

uu 0

c I-0

- ...J.

LL c::

J..i I-C."J 5CC 400

= ~*

t:>

(,)

300 200 100

__________Q_ c 1200 2400 6CCO 720G

.TI ME

FIGURE 16 PALISADES LMFW CASE 3 PZR WIDE RR~GE PRESSURE 4000 --~~~~~~~~~~~~~~~~~~~~~~~~--.

3600 3200 er

( f.) 2800 CL.

UJ Q:::

=>

(f.)

(,") 2-~0G UJ 0::::

~

1J.J C!>

z c:

20GO V-t.i.J c

~

1500 e:::

~

c..

1200 BOG 400 0 120G 240G 36CG 48CG 600G TI ME ( SE~CCtJCS J

FIGURE 17 PALISADES LMFW CRSE 3 REACTOR COCLRNT CORE FLCW 110.--~~~~~~~~~~~~~~~~~~~~~~--

100 90 z

l.i.i u

Ct: 80 l.i.i

~

0

_J

~

70 LU CZ::

0 u

..... 6G z

c:

_J 0

0 u

e::: SC 0

L~

c:

LU Ct:

40 30 20

---*------*--*-LO 2*~00 3500 48GG sccc 72~G

0 1200 TI ME r SECCtlSS l

.FIGURE.18 FRLISHOES LMFW CMSE 3 s.G. A quxILIRSY FE~D FLCW 500 .--~~~~~~~----~~~~~~~~~~~~~~~~~-

450 400 u

w Cl)

'cc C.)

350

_J

~

0

_J

~

300 0

.u

~

LL.

,_ ,,-r.

v.

'"'~""'

c::

x

~ ..

c:: 20C c:"

(.:)

(,')

15G I

I.

100 I

50

---*--*--*--n.&..,Olli,..____.____,________....,____.____.J...,_ _ _....J C 120C 240G 3600 48CG 6GOG 7200 TIME f SECCNSSJ

FIGURE 19 PALISADES LMFW CRSE 3 5-G. 6 quxILIR~Y FE~D FLOW 500 .---~~~~~~~~~~~~~~~~~~~~~~~~~---

450 400 u

6.W Cll en cc 350

_J 0

_J

~

300 0

~

U,J u..

Cr' "'5,.,

a: c... "'

x er. .,,.,,.

c..Uv

=

0 en lSG lOG 50

..,,.. ~20C 2400 36GO 48CG 6GOO 720C TIME (SECCNSS~

ATTACHMENT 2 Bec!1tel Associates Professional Corporation 777 East Eisenhower Parkway Ann Arbor, Michigan M*1tAddross:P.O. Box 1000, Ann Arbor, Michigan 48106 CPCO PM & ~.{? DEF'ARTMENT June 15, 1982 JUN l 7 1982 ENGINEERING Mr. Nate Haskell Plant Modifications and Miscellaneous Projects Dept.

Consumers Power Company 1945 West Parnall Road Jackson, Michigan 49201 Consumers Power Company Palisades Plant CPCo-GW0-8343 Bechtel Job 12447-059 AUXILIARY FEEDWATER

. PHASE II MODIFICATIONS File: 0275.

82-12447/059-36 tt

Reference:

CPCo letter 8343-057 dated May 7, 1982

Dear Mr. Haskell:

The following discussion and .the attached diagram illustrates the pump start sequence logic as a function of initiation (AFAS) and AFW flow.

Pump P-8A is actuated by the AFAS left channel where as pump P-8C is actuated by the AFAS right channel. P-8A starts immediately, the P-8C start signal is "blocked" by the *time-delay relay. If AFW flow to at least one SG does not increase to a value above the flow switch set point, and the time delay relay has timed out, th~ pump P-8C will start. -

If during the operation of pump P-8C flow to at least one*sG is not achieved and AFAS left channel is present, pump P-8B will start.

Bechtel has reviewed CPCo comments regarding auxiliary feedwater pump and isolation valve logics JLG-14l(Q) through JLG-145(Q), all Rev B. Each comment has been addressed and is resolved as follows:

tt

~* ,

~

Bechtel Associates Professional Corporation

}-~

Mr. Haskell June 15, 1982 Page t wd r:

~' JtG-143(Q), Rev B.

. The two time delay relays, in conjunction with the "not" and "and" gates develop a pulse with a duration of five seconds.

The start signal, therefore, goes to zero after five seconds.

This is done to prevent ~ntipump lock out and enables manual rI pump restart.

JLG-144(Q), Rev B *

J l

' The start command signal for pump P-8B is developed on I JLG-143(Q) and includes AFAS "A".

P&ID M-9207(Q), Sheet 2, Rev 0 t "LOW-FLOW" instead of "NO-FLOW" is correct. The next revision of M-9207 will be changed accordingly.

I All timing intervals indicated on Logic Diagrams JLG-143(Q),

i 144(Q), and 14S(Q), are approximate. These timing values will be revised and shown on logic diagrams and system functional descriptions accordingly.

If you have any additional questions regarding these drawings, please advise.

Very truly yours, .

y._Q/17~ _-/\

/q~t_-!s~Ut-t.ic?-J

~roject Engineer NB/DV/PKS/lac Enclosure

l I

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OPEN I MANUAL I HS-0737 B'OPEN' @ @

HS-0737 8 'AUTO'* iM0-0737 BJ

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OPEN VALVE FULL CLOSED ISOLArlON POS-0737 B VALVE cac) r~ c 01 HIGH OPENING TORQUE M0*0737B VALVE* NOT' FULL OPEN Cbo) HS-0737 B C01 c 33 MAINTAINED CONTACT CLOSE HS-0737 B 'CLOSE'

REFERENCES:

HS-0737 B 'AUTO'

1. P&ID:M-9207SH. 2

+ @ LG-150SH. 2 FOGG 'B' CH RIGHT (NOTE 5) 2. ELECTRICAL SCHEMATIC:

E-1174(Q.l

3. VALVE VENDOR PRINT NO.: lnr<1*

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@ )JLG-150SH. 2) FOGG 'A' CH LEFT (NOTE 6)

~--1 CLOSE

1. THE VALVE HAS AN IMMEDIATE ISOLArlON POS-0737 B VALVE FULL OPEN VALVE . C01 REVERSAL FEATURE.

.) Cbo)

M0*0737 B 2. FOR ADAPTER TABLE SEE SH. 2.

HIGH CLOSING TORQUE (NOTE 3) 3. HIGH CLOSING TORQUE STOPS VALVE Cbo) C 33 WITH NO POSITION SWITCH BACKUP.

(be) /JLG-141 SH 2 )@

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+

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ML18047A522: Difference between revisions

Latest revision as of 20:33, 17 March 2020

Contents

Text

1.0 INTRODUCTION

2.0 REFERENCES

4.0 CONCLUSION

1.1 INTRODUCTION

2.0 REFERENCES

SUMMARY

4.0 CONCLUSION

Reference:

Dear Mr. Haskell:

REFERENCES:

REFERENCES:

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ML18047A522: Difference between revisions

Latest revision as of 20:33, 17 March 2020

Text

1.0 INTRODUCTION

2.0 REFERENCES

4.0 CONCLUSION

1.1 INTRODUCTION

2.0 REFERENCES

SUMMARY

4.0 CONCLUSION

Reference:

Dear Mr. Haskell:

REFERENCES:

REFERENCES:

Navigation menu

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