ML20062H570
Text
O UNITED STATES OF AMERICA NUCLEAR REGULATORY COMMISSION BEFORE THE ATOMIC SAFETY AND LICENSING BOARD In the Matter of S
S HOUSTCN LIGHTING & PCWER S
COMPANY S
Docket No. 50-466 S
(Allens Creek Nuclear S
Generating Station, Unit 5
No. 1)
S Statement of Material Facts As To Which There is No Genuine Issue To Be Heard (1)
" Doppler broadening" is the term used to identify the increased range of energies at which neutrons will be absorbed by a target nucleus at higher reactor temperatures.
This " broadening" has the effect of reducing reactivity.
( A f fidavit,
p.
2)
(2)
In calculating the reactivity effect caused by Doppler broadening in a BWR-6, General Electric uses a mathematical model based upon the universally accepted fundamental principles and empirical values of Deppler broadening.
(Affidavit, p.
3)
(3)
The General Electric model was compared primarily to the Hellestrand tests which measured the temperature dependence of resonance neutron absorption in clad uranium dioxide fuel rods.
The Hellestrand test results corroborated General Electric's prediction of the effect of Doppler
^ ~ ~ '
168 4~-
B 0 0819 0
I l
hroadening.
In addition, the General Electric model was secondarily compared to data derived from the appropriate E?ERT tests; however, data from the SPERT tests were not l
relied upon to support the Doppler reactivity model.
(Affidavit, pp. 3-4) a i
i e
l
?
I i
1 i
s iJ 221
80-8 55 COST $
.. EAF/ COMP Doherty Contention No. 33/
PAtD BY Pt.F. DEF.
Doppler Effect f
h IN THE UNITED STATES OF AMERICA q
UUCLEAR RE G UL ATO RY COM".ISSION h
IN THE MATTER OF:
)
+
HOUSTON LIGHTING AND POWE R
)
COMP ANY,
DOCKET NO. 50-466 I
q (ALLENS C RE EK NUCLEAR
)
hj GENERATING STATION, UNIT NO. 1)
)
f Di d
^9 fi i
R N
i b
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DEPOSITION OF:
JOHN F.
DOHERTY
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n-To 1917 Bank of the Soutn.ves: Building. Houston. Texas 77002.(713) 552 5311 h.
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m 4
^>
y 1
de not k n o t, h e '.
I c. r o c that
- v. i l l be,
- i. > t e v e r, or a
2 h o ve g r e r. t it will be.
2 Q
2 C.
- t h a t ' s the n o x i n ur.i flow rate tha t 's 4
pocsible to the CPr return 3ine?
r-A.
I don't kncu how auch it is v.ith ?,C r> G F.
e.
C.
Ph a t 's your u n t' e r s t a n d i n a as to other 7
onits?
,g M
A.
F o r" e t h i n ',' in the c r e' e r of
'n callens ter 7,y ninute.
r' I r, C.
Is thic the e r. s e n t i a l cooline fl ow rate M
11
.. h i c h
.00 naintain in neccusary for the sa f e ty
\\
l fg 17 decian of Allens creck?
12 r.
Yes.
,o a
y I
b It Tet's go unto your centention i
. 73 1E A.
I regret not having that with ne.
l l
on dop1er cffeet.
l e.
O.
\\.
l 4 17 7.
Pocause you tould like te h a v te that l'n E.
JP sure.
p I ' ve Jc
().
Shat i:. veur contention n u '" ?. c r 2"
l i
i.t, T r-
- orry.
- l'. t ' s
's r2n>.
Your c e n t e n t i e r.
no:ber.' 2.
7{
j 71 7 hat nate: fal i t.
not here.
It's 'ielna no,
!'r sorry.
I l
2 i roxed unlesr i t's returned N
22 do have that.
I.. a s thinking of 15.
l 2.'
(.
' hat in the d o [:l e r effect?
25 r.
1hc c1esniccl ont]et or the
- c. r ; 1 i c e !' l e 7
a 2,9J s.
G
.. _,,,..,,,,......, m,,, m,..
,m
i
.x 1
4 I
aCfeet hcce I
- t..
The depler effect centioned in your 2
content:en.
1'
/
A.
She dorfer eCCect is a system where the 5
e b s c r i. t i o n of neutrons i n a fissioni.g proces: is a
1 changed
.! u e to terperature of the fuels or of the 7
-iteriol durin: the absorb!ny of neutrena.
i O.
...y in tne aosorction of neutrons i
t l
C-j dependent u ;. o n te perature?
+
I?
A.
"'e'abillt, to absort
. anges with 6
'J-phycical cycten.
It i ncraaser 11 l
t e n t e r a t e. r e 3s a l
t i
1 1.-
the coolant an I understand it.
l I
1:
C.
92t increaser the coolant?
. i-i le A.
The ab11Try 'to assorb neutron.
' ha t
'r a t e r i a l' aro
-e speaking of?
15 C.
A.
Uranium ex!de.
17 C.
It's your u nd e r,s t a n d i ng that uran!'dh l
le oxide has an increased acility to absorb neutrons s
I
+
19 at lower tenperatures?
j l
i C
A.
Yas.-
t 21 c,.
To as you incraase ten pe r a tu r e s, g r a n i u.c t
cxide is less capable of ab so rb ing torperature?
i t
i 22 A.
Yes.
Normally.
b t
- /
C.
So that increases i n t e r. p e r a t u r e 25 decreasd the ca acity of urentur o<ide to absorb
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=..(
u n
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,,e t.
r o
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os
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a a
s r f.
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- yt 5
esimus e 6 mummp puse ammie m m same> m mm mestb amme summe esse emeep mwammmee 6 easels m ammie 6 esme um me*wm e amuse munimp-mimmie mm m same amue m aming e
i
1 1
neutrons anc, enerefore, decrocse reactivity?
..oenally.
I
- i..
2 C.
tre there any abnormal occurrences hich 4
arc of concern in this centention since
'f o u have E
qualified all your answers with the adjectivo
- normal *'
J
,l
.\\.
In the event o'
r e !: i d reactivity
~
t insertion, the co;ler effeu: nay r: 0 t r e s p u n.?
O rapidi. anouce to wo r :. in :no neca:!ve
.ay.
In l'
other w o r :f s, to decresce fissionicc.
I '.
cn that diC '. o u cese
..?t opinian ar
^
1 c o n c l u s i c.,7 f
i eob.
,.3
(.n a e c c.. cj v i c he r-1*
c.
. ha t 's the cicle?
i 15 A.
- t.c c i d e n t Ha:ard of Nuclear Pc' e r Plants.*
l~
C.
to you have a page or chapter ceference?
17 A.
Chapter four.
I l
do.ler 18 C.
is it Mr.
".'e b b ' s position t ha t c
!?
reactivi v.
f e e d b a c !< does not ac~ c u i c t i v. encu.h
.~ r to be of any influence in power excercion i
2?
accidents?
i t.
r.
- e s.
1
,~ 1
?.
Is tha all power excursion cecidents, i
4 24 orscaos Sc have refer 2nce te a par:icular power 25 excuruicn accidant?
I.
i l
,,. L*.,,,
,9,,,,9.5
- (
g, g
n,-
- e. -
g3. t s' %.,.d.=e-i. l '
g-
.a m a,
m
.~.,..eL s% 4 f*..
4
- ,M g; ge e i.+ 6 4%s.
e p
t
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(a t. ] ),; r. 7 c_ o s j ' '.r c.' C s.
i.
6
,4 1
I 8
All.
t 4
O.
I.; t r. a t One sele basis of yo u r like
' e bb states, or have you vr.
2 epinion is what e
found other ruterences of this pheno-enc?
i A.
3r. Glenn C r ir; h t riting in ' 'tu c l e a r sell, tso, page r2fety,"
/clar e el ht, part e
l 11 st.stes : n es t there 1.: : u e :1 ore infor atfo:'
i I
i
..e e n e d en inc a f f e c t.: c; initial tent a r a tur : anc understanding s." u t c o w n e c h a r. i sr. cf a darlar C-j 6....,. n. a r,.
a,.
m a. i.,.
e.
3 4
..t......
I y
I i
I
.w l
'r.
Eright.. a 2 tri:in~ in re2srence to r
...,.u'i'..-
a 3,
..i..,. i r
.u.. -.,,
s,.
p.,,.
. w.
r-
+
o, s :. r.
Fr.
Ericht ica n v r i t i n in I t' ~ ~
1 I
12 c.
bat is he eritin7 in reference to?
1 I
l
A.
In reference to accidents in general and l
L i
i 1-tne needs for research
.I l
.., In, o, e. r l
4 I
i i
4 in nuclear reactors.
li A".
i l
.,.4..s....=-
o r..
.- i. 3 r.
_r
.a t.
g <,, e,
,.a,
~.
i e
f uore needed to bc 21 snat ws: that again?
2:
caderstood about initial tem pe r a tur e affects?
a I
r
'f e n
=
.7 n.
i 0,.
r.
. w.... >..
.a
...,o a 0..
- . -.a A i t.
c l
- w..
6 g.
2Di'G l'
yCur Opinion 3, preCar!OuS o p i n i ') n J 3rc r.
i i
c.
.c....st
......,s.
t.
- 4. g 8
[
U.s.-
s e [. !.. f.
i 1
and Fr. E r ig h t's opinion?
A.
'r e l l, Ceneral Electric has s ta ted that i
f 2
these affects, that tacir u n c'. e r s t a n d i n c of these l
i e
atfects have cone fron research unich ;recates 5
tne s t a t e r. e n t of Pr.
Eright.
4 O.
Choy.
Where did ceneral Claceric make i
auch a stctemen ?
A.
I don't have that with ne.
3 i
9 c.
Eut you '< n e w for a
'act tact reneral re:reacntation?
l' riectric did
.m a k e cuch a I
l' A.
r e c.'
I di: cussed it at the Frehearinc I
I conference held in Cetober.
It's in the ninuto:
l I
there.
g.
I'n sure you made t r. e utatenen:s trere 15 too.
I'a trying to find the basis for these 1C statenents, hill you provide us with a reference i
l' where Ceneral Electric makes the s ta tenen ts tha ir you allece they make?
l
.r0h3bl Y' i
19 A.
I think I can.
I can't tod3Y i
6 20 but the statement wa s ceferenced at tha-t!
c.
i 21 It was not a bald c t a t e.- e n t at -hat tiNo.
2?
C.
So yo u say that the transcript at the
?
rrehearing conference has reference that your I/
- e. e e x i n g ?
de i
I n.
7 <'s.7
......,..,... L,..
,:.-t
..u
.c m..
me ae, e y3
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g-3m_)
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t
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I en-
= = = = _
- - mmen m m
_ essem me
-me
-m - muss. eenn_
aume..
I 1
C.
111 e i g t. t.
Could you cupply us ardon?
2 A.
I beg your e
!f po char.ce i t's nc-r e c o r d e <' tbere, ith that i n f o r r' c t i o n ?
r utli you providc us.,
r
/.
Tnere'c s request then to e
r'.
To s u t. p l y tha reference wherein "aneral i 1 e c t. r l e :. ate: tnat it'a F. : e d i c t i o n of doiIer
- e p - a l e n t.
u ;- v.i duta
'.r i c t r e c. c : i v i. j f.2 e r: :. c. c 's ts i
- i. r 6 d a
- O $ 1C37.
E t
l t
}
,3..
- v. 3 3.
. s...,.,. e -
m..,r,
.? 1.9
.e 1,. b.. e..
,a o
i d:ec dcoc Ceneral Electric c a '. c t. l a t e 11 C.
i.
cepler reactivi:y f eed back ?
l 1
t i
1
/..
I der't believe I r.a v e a n v.
- ccitic e nd r i,
4 1
1.'
for it.
' hey rely on it to be t r. e controllinq
.echanina in only the sort of -.oderate what they I c.
Ic descrit'e a: acderate accident conditionc.
17 c.
It's your u n d e r s t a nd i rig that C e n e r.2 1 i
12 Electric does not try to predict depler i
19 reactivity feedoack 7.e
,3.
- e..e..e.
. - '. n k '. - ' '. ",
e "m8...'.<.
a 21 C.
Mr.
Cenerty, what is at issue hera in i
22 this cont:ntion if you think i
22 A.
I t :. i n k that that the should rely uren 2.*
it.
T! a v.
should calculate it.
25
- r..
If they have providec reac t ivi y contro i.c
- . :. r. L L c :. ; 1
...s-
's,
- .
- .. i-
<2'.3
..-,..e,,
..'tu" r~1
' e
^t..'
.,s s.
a se emurese empus ammmes.mme ammmuno.am emien
-e mumme emum.mmme ese - em amie amm-e m amme mamme emene emisse amen N. museum *mamm m
=====m
- m - m % seus e m *** mamse umme amamm = me
I i
1 systens which operate without the benefit af s'
7 doplar reactivity feedback, wcat is non-I conservative cbout that approach?
4 A.
It's all calculations.
There's no oasis l
5 in experimentation.
C c.
If I understand tne phenomena, you 7
diccucsed negative r e ac t iv i t; i
I
?-.
Under certain 00n<1;icns that we 9
mentionec.
I 1^
ha-are those?
I!
A.
""at tl c insertior is not ranid e nc er:h.
i.
1 hat the trocess has t i. e to occur.
l i
1.
c.
~o tnere cre instances w5 era it - 7 u l.!
_a t
i e
1 inappropr. ate to consider d: alar reactivity l '.
Ceedbac??
I'
'. e c.
I think there are come.
17 C.
You have asserted that Cencral Electric 12 coes not account for depler reactivity feedback, I
19 so it can't be a concern tnat they have accounted I
I for when it was i n a c. p r o c. r i a t e, so we can see 2r j
21 aside ti :sc instances where you have rapidly i
cha ng ing conditions or r31!ance on the dorler 22 reactivtt; feedback to be inapprorriate-ThcSe l
are not 0: concern.
?
25 A.
~'.c doplur cffect is One rcipl?
i
.... ~. < >.
.L C
Lt.
c
.r. :.i u,
i r.
.s
.-Note
( ~.* - )
.- r a _.. n..i.i 9,0 6
te I
s r. u t d o w n n e c h a n i u.i.
~.". e y believe that two to t :< c u s e ne, h t. t I belleve yo u 2
C.
You
..e a n 2
just p r e v i o u s 1,,
testified that you were urcine n'
Ceneral Electric to account for the depler 5
racctivity because they had nc: prior to this
,4,e.
Now are
- v. o u s a v. i n - : hat ency do in f a:t l
~
3 l
l incorporate !: into their i. n a l y : L u !
l A.
I'n no: caying
..at.
Inc: r, c r a : ne
^
1" 1
in to their analjcis i
I
+
,i
'ardon nc.
i i
- nco r po ra tin; it into their analysis.
i I
l
- r. a t Ja ycu mean by that?
l 1
0 Cecs Cencral Cloc:ric rely on or reacic:
'5 and use dopler reactivity tecaback in it's 1.'
ac c id en t analysis, or doesn't 1:?
I7
.\\.
It
- en t io n s it.
i i
l i' C.
Le t
- r. e try again.
Le t 's qct a straight-l i
l It farward answer to a straight-for-ard que;;!cn.
j i
- r Coas Ceneral Electric tredict feedback and use I
l 71
- hat pit e non :na in. :. 0 accident analysis?
l 2:
A.
As I said before, it nen:icn:
1t.
I
~: 2 C.
Co you have no Anc' led e whether or not I
General
!. l e c t : ic uses or relien u +L: e n er predatas t
25 any of its conclusions in its acc id en: anal ici i,
f 1
1
_.c, 9ng
..,n.
......3.,,,.,,
es g
t.
~ ' ~ ~
1
(
3)
-2,-:. n.
n., s. i.
..n 5
- - __ ~
/>
.1 uton coplor reactivity feedback' l
2 A.
Th e-n e t h e r.i a t i c a l nodel used by then 2
relics u t.o n dato ci.v.ilar to experinental data e
produced by the FrEai-1 and f r S.n ? - 3 reactors.
1 5
C.
I thank yo u~ f o r that recitation of the 4
c.e cuestion b
e centention.
.aybe we can-return to I
l
- a.a u e.
8 A.
I nink tha t tha anc ered tne cucution, 9
Sir.
i t I be'icve that it was totally 11 unreeponsive, so 1^
ne restate it.
rayhe we can IT resolve thic fricus.
1" A.
Thun r c a ta te it.
1.*
C.
to ye e 0211 eve that Cencral Electric 15 does account for depler reactivi:y feedback-in l'
its acc id en t analysis?
17 A.
No.
Not sufficiently.
12 0
Co you believe that Ceneral~ Electric 10 a t tempts to account for depler reactivity 20 feedback au does so in ad equa tely?
6
- c..t A.
Yes.
i G.
wnat is inadecuate abou: the way Ceneral 2
El ec t r ic predicts d e pl er reactivity feedback?
t-r.
A.
- over e s t i.? a t e s.
2 25 C.
Pow does it over es:ina te?
why'does i:
l F
i i
i I.
...r.
t.
9 n, e
s,
n<,..
I..._.........,. c..
t
.w 4.
t....
~s-a f.,., c>, C.,
.,. t v, a-(~,.
3 e.3 ~ v :,.
r 2
i ese - muse
l 1
CVel CStiCatc7 A.
I haVe no idea wny.
2 c.
lio w do you knew that i t over e s t i.- a t e r. ?
A.
The contention.
5 C.
The contention !; a bald s t a t e:: e n t r
/..
The contention r, t a t e s that One da ta la l
will cone out with the same results l
7
- a n e c! on l
l I,
as the CD ?T-1 anc CTC3~-3 reacters.
s c.
So wha t?
I
,i I
i T *: e CFF:T-1 a n :'
? 'F :' R T - ? rfactors a r
.2 not i
1 i
11 l
s o t e i c i e n I '.- c i :i i l a r to tne reactor that Moucton I
t l
I-
- .i c h t i n ; & Po%er intend; to construct.
6 11
/re f ou a;le3 ing thet Ceneral 1 1.: c t r I c '.i j
i,
.i i
1 only k n o,. l u c g e of r e a c t i v i t '. feedback tron I
1 1;
data derived from the SPERT tests?
.o.
j I
l I-C.
Then what relevance is your r-ferenceu i,
/
\\
l' to the SPCRT tests?
l t
'?
A.
There are no other e.~. p ? r i n e n t s.
I I
t l
l 2r C.
There are no other e :< r c r i n e n t s.
- 5at doe 3 :na r.i e c. n ?
I 22
- f..
There are no other experi.ents witn i
"2 which to "t a s e a judgnent that t ' e '/ have F.rc;ael f i
^
accounted for d o i,l e r reactivity faedback.
25 C.
Are you nc-a l l.:g i n g ::: 00 Ceneral i
.r
- 'C.
1...... A. I u..,, L w
.h.
s.
g, g l,., ),
-.4~ ~ c e, :,
<G w k
- 4. e. v e * :
s
.w
.i
-.=--------.---==.%-
L
1 1
riect ic'n ! r e <' i c t f o r of c' o r I c r r e e c t. i v i t.
8 f
i, feedback t00 not been contarc to acce[ ta bl e test m
f j
3 data?
/
6 YeS.
y s'D r-C.
Ic t h c. t the cole tc a d i s ef
-four
' *3
(,
f.
c o n t ec e : i o n ?
7 A.
/c 'i t
- t e n t
- c,
.es.
n eQ P
t.
ii o s.
d :d yco detc:rine that t it e
' "I Q
0 r a t h e ra c t i c a l rio d e l used Ly r t' cas cor pa r ed to the a
10 SriPT tests cind only to the S r i r 'I tests?
5w sat A
11 A.
S h r o ug h
.r.
' ebb's work.
m
)
h 12 C.
!'o you have a page or c b c [. t e r reference?
17 A.
chapter four.
i q
t-,
SS 1/
C.
In thet tbe c: n l y a e f e r e r. c e y,) u used.t o M
1 r-cup; ort yo s. r allonation that rencra]
riectric Let 14 ceutarcs its n e t h e r:a t i c a l ccepu ta tions only to u
l 17 tr e S P F f. 'I tests?
IP A.
That's right.
1 I
1(
c.
If it's c h o s. n that reneral Ilectric h
- c c c
- ! a t e s it'c n a t h e r e, t i c e ! c o r. r u t a t i o n of e' o r i c r 1
l
\\
l w l ll.
71 r e a c t ; v i r '. to,, t i r c i. r i c t c t e r. t O r t.,, that 1 :, tert 1
27 cata gleaned r ein tests that use a suitable rock r
g lw 22 up of a E h l: core and desien ;.ccfornance, does f
2,'
that e l l ev i., te the concern e ::; r e s t e d in this l
7E C o :. t C n E i O n ?
y 093 Av m
$ I I I'
- I.
( f i ' h. S
'L.
r ;' t- " r *: t*
j *I C,
}
'f p
i
D b
1
/.
'. c a.
p
- l 1
C.
/11 right.
Le t 's go to your contention
~
m
[.T.
2 number 25.
/.
A.
Contention nunhec Tr?
y 11 5
C.
Yor.
I'm not exactly sure h o s.
to 3
describe it succinctly, pa 7
/..
I'd like a copy of the contention.
It P
u c u l t! lel)
?
c r.
I.e t a' e nive you this one.
j 10 A.
1 hank you.
q 3
11 c.
bould you 1;
/.
1 hic c, v o t e c the entire tent, is that 1
12 correct, of centention nunber
?c' i
t,*
14
- f..
To the best of
- r. y knowledje.
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