ML19321A170

Forwards Revision 1 Change Pages to Plant Offsite Dose Calibr Manual.Incorporates Radiation Monitor Setpoint Calculation Methodology Discussed During 800709 Meeting W/Nrc

ML19321A170
Person / Time
Site:	Farley
Issue date:	07/14/1980
From:	Clayton F ALABAMA POWER CO.
To:	Schwencer A Office of Nuclear Reactor Regulation
References
NUDOCS 8007220558
Download: ML19321A170 (6)

Text

, , - . Alabama Power Company 600 North 18th Street Post Office Bo: 2641 Birmingham, AIT ami 35291 Telephone 205 323-5341 nk T

L';;ojWe R,hfen, Alabama Power July 14, 1980 me scorrem e<ecmc system Docket Nos. 50-348 50-364 Director Nuclear Reactor Regulation U. S. Nuclear Regulatory Commission Washington, D.C. 20555 Attention: Mr. A. Schwencer RE: Changes to the Farley Nuclear Plant Offsite Dose Calculation Manual (ODCM)

Gentlemen:

Alabama Power Company submits the enclosed Revision 1 change pages to the Joseph M. Farley Nuclear Plant Offsite Dose Calculation Manual incorporating radiation monitor setpoint calculation methodology as discussed with your staff in a meeting on July 9, 1980.

If you have any questions, please advise Very truly yours,

, n ,; s w.L-J&Y b

[^

F. L.*C1'ayton, Jr. '

FLCJr/TNE:aw Enclosure cc: Mr. R. A. Thomas Mr. G. F. Trowbridge Mr. L. L. Kintner, W/ Attachment Mr. W. H. Bradford, W/ Attachment Mr. Ed Reeves, W/ Attachment g Dg l 80 072 2.o S5g

1

)

3.3.3.10 Cet='-+.a-d-1 of Aia-/ Trip See ?cin:s fr Liqid Yai:=s

(

R-13 hip set poin: -#11 he cale i =:ed based en -=~#accrers s6gle iset:pe activi 7 rescense c_ res f= de detec:= being used ac=rdin:i; to de folicwing e: cress-b; L=A K * (FW + F, e.

W

-h.ere:

I= -ni:= ::ecer respctse (c;=) ccrespcndi .g to de scurce ac:ivi:7 (uci/=1) cai~'T ated as east: red ::x:=it:r nerg respense taken f ::t de cal'3ra:ica c=: re given by de ra=ufacerer.

F.,

n

= ligsd radw_ste -d resease ficw rate (uw)

FD " # '" *8 2 C" T2 8 D) "

E'k R-23A and 1-233 tip set points w*ii be dete'-d ad ~ _;

1. Dcring ind " =T sm_.:n de trip set pois

• 1. T1 be

.a k e n =.:c cne ra=uracerers s:. .g_, e isotege ac::.v_':7 respense cu:-;es f= de detect:r being used. Se: peines wf'i be less dan er eg *T :o de cet::: rate (% 2) cc=espc= ding to 1 K 10-5 uCi/nl in -u effluen: s===

2. Af:er sufficient da:a is ac~-" 'ated to pa'--d: a co' -

ibranen agains: ace *1 represenca:ive effluant dese

=cni:= crip set poin:s nay be c='r T ared '_.a de follcw-ing express-h; g = h(:c) + K (w )

-h.ere:

( K = 2.e :ero intercept en de racefacerers er ze l 1

cbrad :ed by :skig de d' erence beceeen de (c;=) j

i es w ** w w w.sp 4eme to

uCLI:L.

t -a (x) = de inc-2. -kich ge.e:acas de -e #ac:rers c:.=ve. Sech dat % = (wu) cet=: rata cer-

ascending :o 1 X 10-3 uCi/=1 as =masured in de eff1.an stream.

l ano d

i 1

4

( $

3.3.3.11 Deter =inacion of Alar =/ Trip Soceoints for Gaseous Monitors

( -

3._ .,. 3 .n4.. ,_,- . , .,_ , . _ . v, . : C _..a

._ , = . , _ . . __,_

.... .. e .

a e -r C 4 .. . ,._4 _? _?

u ,e. -2

-.,?.

_,s w,ases ... _ w.a _ a_-

-. a g _ ._ .t. . ...y a. w .: w ..u. .,. .. .t._* n. . 4.4 ..e .- a.t.- a.,.a g _ ; 5 ,-_- ,, u s - .-a.

e o., g .. _- a_ ... ,/ .r.a . ',,

a) i' K ,. q ,. .

• ' '* .=- -" -=-

431 7 < A( . ./ ,41.3-f * - r' C

• t' " C ' * #

-r

-  ; .4. ...

4 m sG,wsc 4-e.

.r., -, -k- g_ _4 .,, .m, b i .s- ,_gga

- . . c - .. a J A--s_-_- 3

.s , ~ .u.-n -~ - ~. _,_1 uC

.* ~ c' .y .a.- a g __-. - . -

se_ - ana ~g 3 _s

. .- a

a. . _' a a _4 .e.s # , .- -'#_

- _ = . . ". .'. " 4 a d_ . .c .". _' = , =. a-

. .. _4a , .., e

< . /.i._ -, ,c;7 a) :_- _- e.,gy _: ,. 3 .

- ( . ew-

= y.__-,c,e _-e__t. ae ___.

s . .----

a-- e.e _. _ _ e..

Q- - _ .. _ .

,.._t.,se

. eC4... ..

. ( ., C _4 / a o. u, )

t- -- .p a. m. . u. s _ _; ,- _: .,.;- ._; , - 4. .,,. -- . _ , ., s e e -. . .

C -s.a ' d + .= _i .. -( ~.". . .". _i .. = "_- u _' _' d _# . .c. v a..a. . c - : .' .=.. . _

a- .

ad o _- =_ _'_= _= s =

.r y . ..e v _t o. .,. a c # -- .=. c _ _i .. _= _' _' ^. ~. w r

o 2..,. - _4 .,. -c..s- - ._ , _,.. - . .

( ','s / C ) y= H.._' 3 ' . = s v.= _' "_ ' ^e _# a. ."a_' a v a .=.c. a. =

_ __..C -

-4~ #--

s h.e .

4-- d _4 ar- e , 4_- r. # __= - -- - - -- . = . " . a- = " Cu.a.d_

- a.. v. ---

I

. i all sec ::s (sec/nJ)

(;(/Q) 3=7. 5x10 ' seC/=~,

(;(/ C ) m..=1. 2x10 - sec/=3

e. , _ - r

=a .4 .,. C .. , .. _

,C .. . 1.,,. y Csa.aw. 3 a a... e t_.:. .;

.. . .. .f .

3M. T _wg

• =. e 3 Mw... . *g 4g.,

g p.4 . _ _.7 4 .= 3 .w- 3. e.w,J

,3

- . e. o. ...

C .#

5 y 3, . w a"- . ._# .*. *; . _#. = '.

I i

-- -y .

C

, s, o

h) E ( I 4 - 3. . l Mi) Q _4s . .t.< 3CCC.ta.

- - 0 350'.!*E.. .,..m..  :-

,. s .i. 3 ,,g,f ,a j. .p

= id y% / p- . .,

Where, r._43s4_4 e

C se .e.,. , _.c A,a. ., ,

. . uE., a'3_4 a a.4., .s 4

_4w .

- 4 -=-

-4de .6 .- 4. .' .' = d . c " .' =

. . ~2 "' 3

=--**Ye

- ( *~*'~ - =** / v. - Y*-

3 f C_;/m )

4

. w m m.,wta - 3 A- A.

_. 6C ,=, .. _

, a

--m a4 .a .4.,w.. s v._4 a a .4 _. %

. sG . ,C ,.,,. ..  % .

.: c . . A a.e.

4..: _4- a A *..n .k,_T a. _ ,s ;

- w- . re; st__

...__ , J / .y .

ye . =C.4.f f

/

3)} .m..... . .,.y.T.a 1 m..*.* a C . " .=..'. .. , P. 4. _ .

• a G- w *f v" .' .. - a* W - 1.T. "S

_ .= d ;#" a- *^

.Jeg 1 mya_-

- w /s .u., a -

.._-a, . w..3 g -.7_3 ..* 4 ". O ) ..- C.~. ~

. _.a h3- -ua eA w.

.. u.a ..c s. 4.ac..~

s . -

e v

a.1.m,se_

b .. (

s ose '_~us ' ~*=^ "

- ~-~ m ow =s ' _' - a..- ..-__ . .

=, w"._=.~.~.,=^

r._..,, ' c# a_f _i c *. . =.d_

a.x

- -- - a c. " a s m' d en

-*__= v c---

_ . a_ _i = .= = u'

' - = c - _' .

--- . .= .- ~ ~.. c e u .. . _4 . . ., =_.~,~_ e _ _' e. .c m

. _ . = = - ...=... _ _' c .. = ?._

abcVe. F: = Tabla 3, Kr-39 weCid be che ces:

.-as - -_ic__'v=- a~~.~~fc - -.

ia =-- i-.=__ '- -.5.= .= _1 d--

"cdv. c .- s.k .i ..

d -

so m e -- a s ---d. .-u .. a. .4 a a-" _4 ..q .*..=. _

u. .u. a_u c w.,- , . a_ .

.s. a.,. s e C., ,..s _; a- u w s

.s. 2o., u .u. u, a sx.; n

_4a - . ~ ~ . . ~ = .._ -as _d __#".= ' . _ = . . , .b.a. w ",. .t .=.

de ~ s e ac."- = _ _4 ..

u a- =,.c,"- .=. ~

'^ .. , .=.. . d "..".a. -. = ' = .=_ a e d_ ^ s e . _= i.. .=.. t # - _*_

cdv. % . s e ,

.w.e t , ., A.

. ue n_,,-.._._. _ _ A_ ,s..

Cw= 3 0 0 0 .._- =_.'../ v. _ . .*.. .

(x/Q)y..G;  :

.c:./ C:.- it ( L w -I.. D!w) , and l I4.. ' Csw= s. 5:134 uCi/5ac I3 l Q . .q = ,4 7. c i g J ;:Ci/sec  ?,;

s i

i

(.

3ased on maximum flow ra e and conservative detector efficiency, the monitor setpoints Sw(cpm) may be caluclated as follcws:

Sw= 07 ,3, c :9 . where b= monitor background count rate (cpm) c= gross monitor calibration facter (uci/mi per net Opm)

=u*m , where u= isotope concentration (uCi/ml) in the monitor at time of grab sample calibration

( Noble gas release ra:a calculations) p .. (

~

-n fw= maximum effluent flow rate (ml/sec) m= net monitor reading (cpm) at time of grab sample calibration ( release race calcula:1cus)

~

Setpoint calculations will be made for R-14 R-15, and R-22 in similar form. The limiting release rate Q,.

u (uci/sec) will be the lesser of the values satifying relationships .a and b. the setpoint M=SL (cpm) corresper. ding to :his release rate may be described as:

S=L , 07 'b, where 1

Iq ,, 14

( fCi v

^

f.g= maximum release flow rate (ml/sec) i l

l