ML19242A774
| ML19242A774 | |
| Person / Time | |
|---|---|
| Site: | Lynchburg Research Center |
| Issue date: | 08/01/1979 |
| From: | Olsen A BABCOCK & WILCOX CO. |
| To: | Reid R Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 7908060222 | |
| Download: ML19242A774 (7) | |
Text
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Babcock &%iilcox
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1919 Mr. ronert W ield, Chief
.cLors Granch 74 Operating DIV i t '(41 o f 0;ri f;
- i:
' i':f r f t :r b r
IJ. S.
ic l e.i r R.Julatary Cem.i :lon
- hiu3 ten, D.
C.
?O%S
' 2> ject:
I. i c t ib re al, R-47, di.eket 50-99
(.cn t !
- cn:
.. m
- e to a
- m st f rc.
"r.
v,.
c, I
.it' ic,,"
In the.n'al:
s of t ;.o D< u pn
- is i it ut.
- nd tht io of C: > 1 :, u t 1
Ac lii o t for the Iq n.c hb u r y, I io l r otur (T.: R), lit t
t o. PA 7.
ibi: ir to.upport :y
- r. qu-
,t for rm -
il of th
! ii o
Sincerely,
' E, COCK & W iliOX Ltr c a.NY 2
L:, nc hbu rg E< st.it ch Cen t er
,/ } ( 2f).-lL~
A.
F 0); en I,i c ;
A?
,:rator rbf
- rne, ore
.bb zi t o or rVU is a
7 9 08 06 02A2.
ldE !) 9 U ', ' w I :, -u C fj. ;f
.i'ie2diti ictor t Oc t at ien3 at 1000 a srise chiefly The har1rde cl-ition of fi ;Ien uodu<ts 4.nce tho a :. I...um from the p ro.!uo t ii'n ad at t <
cr.W ble accident w'uld not result in the ici.,so of fi sion productr, a
P' i r,n R>:is accident (h ' A).omly
s were al~nlat d iny the fh e thyroid nad,,ol e Smiy i '-
i.0C AC L (
cc:.pu t e r c ade f o r c a l c u l a t i n g, iho int e at ed c:
fi oT aitt cat mie s se ed for nl l y i r r t i f i(. d cedo in.icc<>rd nce,sith RG1.4.
'l h r U'
' rt t, a a
calrulati..ns by n %'.
DBA do e
- n pt i t - '
+ in the c:il cul at t on ar' 1.
The v.
otor 1..
o;.,
- te' at I C ad
- r... For %5 d iys 2.
So dit is t
-n for
'h.
1 tp of in r.
i>
i tk building ia. hrs t h e-top of the, ool ca t e r. '
3.
- o ;tean v
4.
Cos pe t (_en t of t' e : 1
" are carri.>d to t i.e top o f t he pool pe.
Fo rt
- p. - rc e n t.
of ter ad s
o the neble ;a s cf yes to ti>e reur tir.
ine t s cent ribut t to +he at only by n:
et iinc of sinht
':o l i d fi: ; ion pr r
s c',e;ure frco the i.PR.
since thu ;it e hv d i.
.nt n ut the 1.P R not ro t line of site int
'th he ' r'R 50
- c rs line of sieht 4nd the t
tad in the d-m s alet '. ion.
di tant, <, o l i d fi: lon p mda-t s re not ce'
-d in t i. '
c.a culat on obtained,' r o m rhe it
-phe ri e d;
-ii.n r<ct.n, s
o t! o MC wite eteorolo;ical tudy
- p. r f o i. 3d for the Ce
- reial ':n c i c a r Fuel 3
Plant located on ite The result s of t he rel e :;e are :s f oll, s Radiation Do-s at t 'e e Tinit of tre
-11u, ion
.\\ re a ('80m), 2 liou r Do ';e
'G o l e t'o d y 0.013 raa Thytoid 0.12 rem A T' D P. O O g,
i.i k
TJk'ih Mpgiih,ldDidWN
.a 3
468 2:1
.ince M
o d t i:
of
,e calt ulation are e a i de r ed < eaae r it 4 '
re ict or e p r.a t i on is nch li,n).e r t! m is 1
'u 1 :, to octur.
LOCA. _'.' M.Y S I.S._ -
A cond ;iccident that was com ' Ar re d a s ie r ' 'u r. rit st, is t 'ie le o f c i a l. i n t_
from the 1 P il p. a l.
"12 i c c c..'. n r
, thit tho 1.
"s hr " en y, ; at 1000 i',
en a o! ic.:u b d nillitine cd ratiny, for five e, n :'e t u t. =.'
break occurs in the pool outlet pipe at the. int t;o re t'e pipe enters tb<
- uct ion end of the p1 1'.ary coolant pu a.
- thi
< r4 41 occurr, h ewi er, We t.pe rat o r in
>d t o
- a; no
+ : e :1 a eps below 11.5' c
i-
'e the the reactor ut c: :<t i cally s a n the real 1, s el 1
core, p l c.c i n g, t h e re act or i n t% d ' c as !.e a t t s ide.
eq: ition (1) by The tir. nece
- a r
- for the rol to drain is deri ul G s-n as ide ring the rate o f ch a of the rm o] level ub:n t h.-
6" J1ar ter
,eenle
'0 outlet pipe is ;ecerod:
+
h O
A dh (1) r
=
S
. 6 11 b
,n.
I whe re
- = Line t o di c rease pool
]<
el f: 'm h - to h 1
o A - C'rlace a rea of ' on1
~
9 Ciols <ecii al aica oi,utlet pipe p, =.*i c c e l e r a t i on < ~
Iavity h - m > 1;h t ot w 1t e r l e' el A '-
c'u l e t pe F-
- atien (1) p red i ct s that the 1 e.s pool
- 1. ', e l sc:
vill occur 03 e m is after
>1.tely 'nces cred in
', 6 ',
ends the start of the accid
.!t.
Th e core will be c (441 sec. after reactor "butdczn) corte.veldi to an tve ra ;, ' lo<
ate of l'+07 al s /ri n.
m vs A' P1. F* n p] A' j *> *,' ; k. 4 * ; r,-* i!
+
A PN
'\\-) d b
1:
R, f, %',
t1 *'
',a
<,.q th.
- v Qp h h. 'e\\ c c ci c ol i r m.- t ea l p i i > c i s'.
a Ic,rv i ount of fetced cent?ctive ecol in, s.iich n t.n ns the uitial fuel t
te e t.it u r e unt il the ciire i: uncevered.
.\\ f t e r um
- ering, aly
.t ural air o 1: the core etien co, t
4 The : n. i i :. ; i t t!n id as.> d for th
- 1. F '.'
i in t ' d u.
d for t i.
ef tv
.nal'lis of tin-i !.! R i n d L'..\\ R in chich INA 1 l ii
- w ol < >n 1 1 ! !'
a ri-
- n t :,
hi t e t h<
,,.re c.in ac t uall y "1ci ered i l d t l o-
'. '~ n I ti i r o < <: re is f -
1 a fonetion of t t
r-nred.
i.
3 1
w 7,ation useu tn tais t a a,i :. : I s is e i; en m "4 :.
-c x
- Q(t) - hA^;
(2) p dt ch.. re
'c-T3
=7
.- rm u re iiff...nce 1 m en ien*
=
i air.nd
>?1 elid (Cr')
Q(t)
Jiosion product d cay in-.3 t orce (? h')
hA P ro 'uc t of t'
equivalent,,! u ral c e:tvee t : on ric..n t
- n d <.
e t i..e t is e h e :< t ti
><>:r co 1
- ica of on.
.'l-ent P.J / " F)
,c
= The e#fective heat c,.pacity of ~ uc1 ole nt r
h
( ".J sec/"F) ne vaine of (h A) u: ed in i
t ie Ll'R.!rul
- i s is ;i s -n vy :
hA 7.75 x-10 (6.4 x 10
+ U. 3 ): ?.s / F
~iS i s
,! ue
- 0. t;3 t i:
thu valu4
~ed fo r the
>l
- it
.n.e the LPR fuel 4
s 1
ele:
- nt h
.e 10 plate > ra t he r th m 18 and
...e
'u.it t
.tr : fe r ena per pl.it e is ipp rox i m t ely lu:11.
The e f f e e t i.ve in a t c a p., ' i t v (rep) of
.n IPR fuel cl.
cat
,s b d on the
'c used in the F.J R :m a : ' tii for m R type fuel ele at after I
- t-
.ut for the p
rodoced rher of fuel plat as
'" an U'R ele: ent.
eat c,pacity for an
!.PR el nt ed
'n t his
- a l',
- i: i:
,_n by:
A /_ O Or7
-_ 3
. mc/oF
'-t V U L..J J 3.5 x 10 ~ "'
=
'P la.
s t a....
i a
gt t
(
i ' l,! },' MA. f ij
's
-(it, - l c. J- $ '\\
i
,i g?.
- e t i w
as ua
+.., *. g *, L
- i.J L.; L
- 3 3_
ne in at mum, g(t ), is ni ven in tne 'ay s' i.. ne r c.iu it ion for
.t.
1y 'o at
'rodpction
.ift.'
hotd.4n:
g(t) 6.22 x 10 ~[t
- (t
- O -n',]P c r.e)
-o
o
,;be re t
ti.
aft.r but J %n F
, actor
.atim tir.e P
t.cn a t i:.
-.s e r o f t h e o l t. ent 1
'!1; e o
..itin.p,,-
,a*r of the ele.ent, P ur ed in thi:
..il y n i s thu acer:..'e 1:
g, pese r pr oduced in an el :,;nt at 1000 kW r ni t i pli ed by the radial peak to av rage r at io of t he TPR (1.5).
A i r,
'athod was al s.o used in the N R a n d U V.'1 R.nalysis.
We react or op at in ; t ir e, T,
u s.. d w. >, 5de, as
< a t od p revi o' sly.
Con 5fning t! <
p ir ters int o
- at i on (2) y i e l d:;.
r d?
-0.2
--0.2 1.72 6 ]:
- 1. C.; [ t
- (trf)
- 1.31 x 10 at
- 1.03 x 10 n is t o n.i t i. n il s 'd for
.. 100, < not e r.
Thc
- 1. a t air 4
a.i 1
o
.d as 100 F.
t(
pe ra t ure, T a,
The rc: ult > of th_a putation are shown in Fi < u re 1.
Th e txiron g
e l.n!d i n g t.- perature was feund to 751"F at. " 1,94 he.u r: af t er th-4 t a r '.- of file accident shirh ia wall holow the clad i I ' i n i, p i > i n t, of l !'.' O f.
It is t he re fore concluded that the ' c:, s of r < >ol ant fro-ti.e IPR due to a evere b re ak in the surlet pipe, which is h i r11 3 enlikely, will iat t. ul t :n fuel plate c.e l t i n g.
lrl 6. n
_ ", o m
1 u
_ 3 7
t 2
./
i
\\
~
)
4
Fi p,u re 1.
Fue1 C1.i h! ) n:,. c.. u r. i t u t,.
mt dmn fir 12 t)0 1100 L
' ' t i..)
C c
UO ac b
D L )I.)
C-7i)U 2
N N
5 s
h00
_'w~.
u
_ _ ~,
v O
E*
3(10
'4 ( ) 0 "
J30 200
~
i
~
100
_1-1 _ ___s _ _ _ L _ _ _ 1.
. L __ _4
! _ __1.
1
.f____t t____..____
2 4
6 8
10 12 14 16 18 20 22 2.
26 Tim tfter Rhutdm.m (k s e c )
or" 468 2A
1.
D.y ;.e t t, S. Q., f.( >t 'M :1.
3 d 1.' '.K I; P r o,. r l'o r Det e r :ai n:it i on o f i n t e g r.it t d Di s e ' From Af ilso nie e l c :n is,
.i'(.D - 1 M - 6 3 8, ?mie l '> / 8.
2.
liol;.. n m,
E.
G.,
Sa fo
!rd % cort for Open P
- 9 S t a t u s Report on the N,a t'
,t n act or eith 1,ei<.ed Safety
'.al;ais, I on A1: ros Se l ent i fi c iahoratory, LA-4192, July 19b9.
"em,
.I.
I..,
Pcv i. d
a fe ty An al; :i: "eport in Support of
'n 'c nt 5.
to License R-66 for Two "ey,awatt 0; e ra t i on, G'AR-l S, Pa rt I., Oct. 19/0.
?
468 256