ML19224B532

Reactivity Calculation

ML19224B532
Person / Time
Site:	Crane
Issue date:	09/08/1977
From:	METROPOLITAN EDISON CO.
To:
References
OSC-770908, TM-0268, TM-268, NUDOCS 7906150260
Download: ML19224B532 (5)

Text

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TMI DOCUMENTS DN'- b d b DOCUMENT NO:

COPY MADE 0'I

[ 7f 0F DOCUMENT PROVIDED BY

/

METROPOLITAN EDISON COMP /diY.

fhb5?$

'Jilda R. Mullinix, NRC 7906150 h

<.c n O

b

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4

^

09/ C/ 77 tEliCLO,1UR E_l;_.. RE AC T IVI T Y ;CALCULAT I ONr PART I:

1.

Reference Conditions:

(Circle appropriate reference conditicns).

EstimatTd Reactivity Balance Shutdown Critical at Power Margin Position _

T Average 582 F 532 F 532 F Average NI Po..e>

100%

0%

0%

Control Rod Position 100%

100%

100%

2.

Actual Unit Status.

Sd(

oF.

n.

Tave O

LFP:

B.

Aver:.ge NI Power O

%FP NI-5 O

%FP

!! I - 6_

N I - 7_

O

%FP O _%FP NI-8 Care _[Y _EFPD.

C.

D.

Boron Concentration

[ 2 7 ppm.

5 f dIO

t. 9 'c]

[.

Rml Position:

Group 1-4

"D Group S h

' lD Group ti/7 O

'"J D 7

Group 8

" 'el0

';0 T E :

All positive (+) and negative (-) reactivity calves will be t a',.en frca the fig;res.

/[, /;

rnK/K 3.

Fuel Excess 2.e ctivity (Fig. 1/lA) 1 22.0 t

• [A'

Ob/03[77

- ENC.LOSURE ];; REACT _IVIT'(. CALCULATI'0Il 1 PART I.

1.

Reference Conditions:

(Circle appropriate reference conditions).

~~

Estimated Reactivity Balance Shu tdo in Critical at Power "argin Position T Average 582'F 532 F 532 C 0

Average ?!I Power 100%

0%

0%

Contrcl Pod

_ Position 1007.

100%

1005 2.

Actual Unit Status.

A.

Tave 5'76 F.

B.

Acreage ill Pcwer O

SFP:

flI-5 O

";FP fil-6 O

%FP T11-7 O

%FP fil-8 LFP C.

Cor e 9,/ I FPD.

,E Bm on Concentra Lion 46 7 4 yt 2 = y6y. Sffin b D.

ppm.

F.

Rod Position:

Group 1-4 O

%UD

'/}6 bOC Group 5 _

C TWD Group 6/7 0

Swo Group 8 27 M!D

':0 T E :

All positive (+) and r g ative (-) reactivity. wives will be tden fecm the fipres.

3.

Fuel Excess Reactivity (Fig. 1/1A)

-r ! b, 7

":K/K i

22.0

-e

• M M

N*

A.

Groups 1-7 (Fig. 2/2A/2B/3) -9 dY tak/k tiOTE-For shutdown l'argin assume 0% uithdrmn for Groups 1-7.

B.

Group 8 (f.PSR) (Fg. 4A/4G) 3 8

%ak/k C.

Total Reactivity of Rods (Gp 1-8) 4a +4b= -/0,62 %ak/k.

Baron Reactivity (Fig 5) d h

%ak/k. maj 6s2 T C""*

5.

A.

Boron Ratio (Depletion) (lig. SA)

.cf q 7,f

- Y. / L(%aK/K B.

Ef fective Boron '.l orth 5 x SA=

6.

Xenon Reactiv;ty:

A.

For Reactivity Balance at Power use Figure 68.

B.

For Shutdown Margin use Figure 6A (if at equilibriu.a) or Section 4.4 for transient conditions.

C.

For ECP see Section 4.4

- Y, 9 Cak/k 7.

Reactivity arsociated with temperature change:

A.

Reactivity coefficient (Fig 7A/B)

. (6 h

%ak/k/ F.

B.

Reactivity due to tenperature change (7a) X (Tave - Reference Condition)

~

t k/k liOTE:

For shutdown margin '.. hen the reactor is a t p:<,.er, use 0%ak/k for temperature change reactivity.

8.

Reactivity associated with power change:

A.

Reactivity due to operating belcw 100% FP,210 1 0 't 3 f JU (Fig. 8)_

$nk/k B.

For SCM or ECP use OT'ak/k

/I

_"d / k 9.

Sa.oriuni Buildup after Shutdcwn time since,shutdcwn days (Fig. 9) (for SCM, ECP cnly)

~.0/

"s a k / k l:0TE:

Insure t at the correct signs have teen recorded fec:a h

figures.

l' Stuck Rnd Criteria A.

For Shutdc..n

. cg i n u s e + 3. 91 :'c.:: { K 7 0 B.

For St. Pc.,er Calence or ECP use 0:'d/k t[

" '/k t

^

11.

f;et Reactisity (p):

p (net) = p (fuel) + p (rods) + p(boron) + p (xe) + p (temp) ' p

~

(power) + p (sm) + p (stuck rod).

Add the values recorded for the following steps:

p (11) = p (3) + p (4) + p (5) + p (6) + p (7) + p (8) + p (9) + p (10)

- Q.04b

$ b.k/n Sh\\dow n p

(net) =

%ok/k tiOTE:

Refer to Limits and Precautions section 2.0.

A.

Shutdown Margin, p (net), n'ust be trore negati c' than:

-25aK/K when Kef f > 1,(TS 3.1.1.1.a)

-l %aK/K when Kef f < 1 (TS 3.1.1.1.b)

B.

The reactivity balance must be within + 0.55 ak/k (steady statt or + 0.8% ok/k (transient).

Calculated by: [ k ]l[Ib. y yzG/79 06 3j Operator Date/ time Approved by:

SFitt Foreman Da te/ ti me RETLIR:1 TO l;UCLE AR Ei;GI ;EER D

'[ } b j u -)

p-9

,/

24.0 3,w e

~

g

SOURCE RELEASE TERM CM.CULATIO:;S U !IT 2

.!~

^t<'sm" 1/16/78 Indine g le 3as_

F_ c3 j' lent ib::i tor CFM 1.

HP-R-219 c/m/m Scd6 c/m 1.

AH-FR-5720 ~

(Sertice Bldg)

CFM 2.

Fica CFM CFM 2.

AH-FR-5284 (Aux. Sldg) 3.

Ccnstcnt 4.5x10 L

l 3.

AH-FR-5256 CFM

~0 (Aux. Sldg) 3.

Constant 1.35xlG-uCi uCi sec

-s e c 4.

AH-FR-5659 CFM 4.

Mult, lx2x3 (F.H. Bldg) 5.

4/10 Ci/sec Ci/sec 5.

AH-FR-5053 CFM 5

(Rx. Bldg) 6.

AH-FR-5075 CFM (Rx. Sidg) 7.

Total 1 thru 6 CFM (I'? x = 275,500)

'w

'Ad HP-R-214 Centainment leak Rate lip - R-214

• Icdir e

?'cble Gas l4ter Reading (Ci/tec)

(Ci/sec)

Total Scurce Tern 2 R/hr

.0006 8.5 Icdine h'oble Gas 4 R/hr

.0011 17.5 1.

HP-R-219 6 R/hr

.0017 26 2.

HP-R-214

. c cc 4

% / __

8 R/hr

.002; 35 3.

Add 1 & 2 Ci/sec Ci/sec Thhr

.0023 44 12 R/hr

.0033 53

• HP-R-214 Is shield 3d.

Rx. bldg radiation level is 1C0 tiites Hi-R-214 meter reading.

The o cbers specified

-in this Table are Meter O ea di ags T i rc.e_

Oate

. Calculations by j i (;

.A m, v

.u..

Data Shtet #la

• * ~ * - -

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