ML19242C992
| ML19242C992 | |
| Person / Time | |
|---|---|
| Site: | Crane |
| Issue date: | 06/27/1979 |
| From: | Meyer R Office of Nuclear Reactor Regulation |
| To: | Mattson R NRC - TMI-2 LESSONS LEARNED TASK FORCE |
| Shared Package | |
| ML19242C986 | List: |
| References | |
| TASK-TF, TASK-TMR NUDOCS 7908140321 | |
| Download: ML19242C992 (18) | |
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2-NUCLEAR REGULATORY CCMMISSlCN UNITED STAT Es
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?'EMCRANDL'M FCR: Roger J. Mattson, Director L'
Lessons Learned Task Force FRCM:
Ralch 0. Meyer, Section Leader ruels aection Core :erfor ance 3 ranch
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- r-C-U eutec:ic '#:r ation in licensing work.
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dai ms It shculc :e em:nasi:ed :na: :he er:erature of #0rma:icn f this e; ec:::
(arounc 35CCC:) is well above tra 2 2 : 00 : LCCA it,its and,:here# re, wcui:
"c nave :een :iscussed in an ECC3 nearing and wcuid nc: ce relevant 0 any current licensing analysis.
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19-1 19.0 n.*EI. RCD Prf SICo-c"I'c CAI. ?"AC'"ICNS This section discusses these physico-che=ical interacticns a=cng the various
aterials of ec=nercial ligh: water reactor fuel rods and their 1:nediate envir:n=en during a icss-of-coolant accident (LCCA). The zirconiu
stea= rea :'en and its consequences sere treated in the prericus secti:n.
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.4 a<aw these tests were in encess of 2400*?.
The authors state that th e C r-Al w.4 h';
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The severe te=pera:ure ::ansients
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in these tests were initiated by the so-called ":cly-shift" a::ributed to y;
use of =clybdenus heating ele =en:s in the siculated fuel reds.<' 2 The
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the kan:hal heating elenents were cre easily con::alled and the hi;;h te:-
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pera:ures necessary for :he :*r.C eu:ee:ic forma:icn were nc 2::sined.
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felt in June 197'. tha: this new informa:ica did act indi:a:e a pr:ble:
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'iational intervencrs have exrressed ::nce=s abcut eutac:i: reis:ed physic -henical rhenenena.
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19-3 The cencerns appear to be supported and reinforced largely by recc=enda-
~1ons for future work in the C;C reper en 3'?R FI.ZCHT ne:allurgical evaluatica discussed sbove. The entire future verk sec:1cn of E;-1453 is reproduced belev:
"~he fac: that netallurgical performance anenalies such as the al:sina-:irceniu= nce patibili:7 can occur raises :he cuesti n of wha: nigh: happen in an ac:ual ICC situation."
"As shown in Figure ~3 (sanple number 1) of this repcrt, :ircenium
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f, bear further investi;a: ice during future work."
1 The foli:ving addi:icnal ques:icns were raised:
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=cdeling were questiened. The folleving sections deal vi:h the various conce ns noted abcve.
Reac:icns of Claddine and Ncn_-Zircalov Grid Eracer Material _s
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---w--w m - -~~=
? - ~
~
-~ =-
T2 m._ e %. s w.A
- -. +
m.1 1
.L
_ = >
< -*..,.i uw
- A:,c a+,
_ s e.<
.s
- N.i 1 a.1 i
l kcal/ cle of Ni, assu=ing the a=cun: cf Z: present is large, cc pared :o the a: cunt of nickel.
"The abov-indicates the approx 1:ste add' icnal heat produced b/ the reac-t '.o..s.
U..wev e *., '.. e s *. ". ' ' '
's e a A s a
- b ed..d a. 3.,- ". e ".. _ a. '.... w.#
. '. e o.T. c.a.
m.
a.
eu:e::10 f ren the solid phases. n.e a cun of hea: absorbed in :he
_ g.e. <. 3........
,e 4
.s a...,,x<-.a.e
.,. 3 s.. 3.,.c
, ' =., a.2.'
a.' e e. s..'. a. <
y..
~
that.f the es:imated oclar heat produced by the reae:icns.
3.13 assess-
,.... <.>..<. a. e 5.u.a.
<..a,f ue _<-y.-..,
..a...
.O
. -. a. < > e,.
. u.,...
C.,.
<.~... -
y
...u
.u.gge
.gae.<-
s
.O
..-d,a e
34..-
......,a. 4.:. u.. e.7
<-,C..-..
,.., 3., s s 3
s
..s.
eX. a.
"~.,
.3, m.
. u.a.
- -._. C s.. < -.. s
- w. a.
,., C.., C' s-44S.-.. s.e. e.A.
a.
u y
a,0 n. e..<, '
.e, n..z e
.a.4.:.:..
.a...,
w.
y wa 3.<
e_..
e*.2*.'..'a.
d e "r...w' a ". *.
".k,.S~...~e"..v-.'.
".".'.e.'.'.".##"..~~-g".'..'.s-"ya.' a..*....
2"*.
A
. 3 w
.y
. t.a. ex.< -. <.
3,.2., 3..s. a a 3,., a s 3 a...-
.a s : : ~. g..-,. - e t,,e,
.z.
.g s
s y.
-el'. knc.n that for :hese : up'es :: he effe::ive, :he surfaces of :he n..,.
.,J*
..u.,-
y.
....a u@-.
- u. e..
.1..,
3 =C L, w, a
- a. f,p a,..
.a.< a,..
...y..
. s..e o _#,. e,. u.e
.at.:.2..
2,.
..... a.........a.
,.a.,,e..,_
.s..a..O...
2... t,.*.a ue
.a
.u a....
v.
..-.p.1.<
- 2.,A a
..a.a..... e 3,,,
o.u.e X.z a. e.34.. S
,,,4..<
.g,,,.
ou..,.
2 J,
., s s.:
.sw
..s...
- 4. e.' a. a.a.s.. $
.. a.
,. < >.. aya..a.
3. e. a.3.' a.
ww,.
a_ m. y.. < S..e a
- 2....:
a..
4...>.< a., s
- m. u,3.
..u.. gn. e...,.. a.
e.1 2.
$ D e g 2..a,. u. g
.s. -., 4 4
.e ?s-3._. m.. e 3..,.,,..... u. e p.a
. o.a c. a.0 S,.e.
3....,.a.-
- . u. a u,, 0...o..,
. u. a.
-. 4. a.
-..a.
w.
s.
.....aw.
a
.3.
u...
.4.. e '.,.. : a. 2..,. C. '.a.
.u.e a.C.a. :. a 3 :. < -... "
._.4..
/
I '.
,\\
) )
a'QL^-
',M g
W s
B
~
~ - -:
s'_
4
^ *
- w - - --
Je m -
'2 A"
3 d
s;.
Q f
.1:u.? M ', w w m. &.** --3 2..-,.__'. _ &.,
~.--2_..
- f. y y ;:q,,.
g
_* g er V
l 19-8 w
I
.s i
.4 i
Cc: uter Code Siculation of Crid Scacers and Related rutectic ?craat' n Sc=e i=portant aspects of grid spacers and eutectic for:atica would, i#
.g 3,
incorporated in fuel elenent heat up codes, lead to Ivver calculated j
-.a te=peratures results. For example, the power genera:ica at grid spacer l
locatiens is depressed by abou: 5-101.,. e
., If a grid spacer were adjacen:
l to a het spc:
and the pcver depressien were a:: unted for, the peak clad l
y te perature a: the grid spacer veuld be about 100*7 lower :han presen:ly a
calculated.
n addition, :he effe:: cf ;;id spacers in the sub-channel enhances hea: ::ansfer locally, h*either the pcver decrease
.0: 1:Or:ved heat transfer fue to the fin effects of the spacers is included in curren:
J LOCA evalua:1cn cdels.
l i
.J
}
e Cx..Je T. e..n 4 %..i e. d. v.,
4 me i
'4es :1:ghcuse and 3F4 subj ected 21r:21:7 tubes with incenel g: ids to 1
t stea= envir:::ent for a range of c:ndi:icts 'ncluding these expe::ed in 8
i t
tcca.,s.
13,.2..
2 i
3 i.
In no case fer which cladding :e:peratures were belev 200C* ? vr.s :ladding integrity breached due to eutectic f ::a:i:n.
- n.dditien, 'Jes tinghcuse f.
performed a se: of similar experimen:s in Argon which dc=cnstrated i
., e a,.,.../. u..
.a, u. s. a. a,,
..c.....,
,,..e..
.u.e ng.$.ae
.,. a. a,..
n.,m.s.. e n.. e >.... u.,.
e staa tests.
?heto nicrographs shewed :ha: the cxide layer f:ned in a stea= enrir :=en: vas re:7 effective in preven:ing 3:cd :enta:: and cre
.ap s..a
., 2 w.. a.,
.a.. u..< a.
2 a.s.:.. >.,... A.'e>
e.,c.ae.
.a..
a p
/
i{Q I
4 s
t t
k
.cv.
,7 m
.m. x s.
c -.,-. - m.m-- m.-
- -,,m ~
.,.c. -. q
_ 3.,,, a.__
~
-T-
'v
hh.
_ _mauw me%Gic'7v.NC Ch> t.%A :%4n. J.w -5MI_.weMPAM n-19-9 CO- - Stea: Resetica The reaction of UO: with stes: to for: higher cxides, notably U 03 was 3
studied by 3aker, et al. M.20 S e authors noted that although the free energy of formation f avors the rea: tion, very s=all s: cunts of hyd:: gen inhibi: the reaction. A substantial ancunt of hydrogen would be expec:ed
- be present frc the Circal:" steas reaction. A staff :alcula:1:7 shcVed abou: 0.05.cl f ram.icn of hyd: gen near a het spot at 11C0*F.
The authors shcw that even at :e:peratures subs:antially above tha:
cxrected in a 'CCA the kinetics of the reac:icn are verv. sicv. The 2 -d-0 reacti:n, f : ins t anc e, is 10 ti=es faster above 1000*y.
Therefore, during
- he ve y short tire interval during a LCCA when 3:e2= has access :: :he UO; at elevated :e:peratures (af ter rupture of the cladding), Only a ve:/
s=all amount of exida:icn c:uld ec:ur. Se report - -' cencludes,
"~he
,2 reac: ion of UO: in the presente of a reac:ive ne:al would be expected ::
bec =e significan: culy after the netal has been completely :xidi:ed."
This could caly cc:ur af ter =uch longer e cpesures and higher temperatures than presently calculated for a pcstulated :,0CA.
00; and U 03 Reaction with Cir:eniu=
3 The ther:cdynamics and kinetics of the Cr-UO rasc::.cn were explored ex-tensively by Mallet:., --
Thernodynamically :he f ree ener7 of :he w
reac:ica is near zero so :he presence Of small :: unts of rea::ica pr:due:s inhibi:s :he reacti:n.
!= fact, '*estinghouse in their tasti.:cnr
',),
..-)
b b
v _ % m *-,vrv m -=.
64mM -',
s +.
s..
w,
. - --- * --ny n; - m.- -. -.,.---c.,
--:m;;..e.
- ~ ~ - ~ ~
~
c., x -
f
- w w.
5 esem.o.a -
M n :.. p. w..~.. <
p.
. y
.s n.c x, _ m. g
.,,.a, -.
g..
r.-
.., :~ :.;. w?
..,.,x..,.,.,
3n.
ny
.,~,..
..m
&y
~%..
)W
.n.
<c.s.
.9,0
?:
.,n.
I 1
?
shows the free enerp. to be pcsi:ive.
- he author shcws tha: the kinetics J
of reactices are indeed.sicv up to 20C0*?. The reactica is shewn as a
?'
expec:ed, to exhibit parabolic behavic: and to follev a typical A::henius t-9 s.
eq, plot.
pd
" %s
.1 I: is therefore no: expected t. hat any extensive rea::icn voeld cccur even
-wC a' ove.' O C o, * ~. "... e. a. s...' m. o' "v303 ". ". *...' d.. - a.. ' u::2 ". c u.'.d.a.
- a. e. a d.
ba since the for=ati cf I'303 is not significant neithc would :he 4
4
.e 3 n.o..t n n
- n..e V j V 3..t.
- u...s
. n 4,.3.
n m 3
~4
..,.4 N
.=" -. '.. e.. o. a,...> e.~..'... _.. 2.'
.' a e...m.. -,
cw~.'2.=>.
. ',. ~..".e"=."...s 'c ~<"
~~
.'i e
sec :.cn of i-il.f3,-, wculd c be expec:ed :c end.s: cencurrently du:ing a LC.i.
kr.er. :he tenperatures are pcstulated to be elevated fc: a icnger
.y st p e.< ~a a:..a.e,
. u.,. s,s.c=
.,ss.u.,..
s,. so.,,.'.u.a.
,a; s.
2..s.. -.a m.
V 4
possibl/ rupture due :o inte nal pressure wculd preven: in: irate cen:ac:
.. >4A
.f c1 'd.
and =cs: cf the fue' naeded fc: significan: reaction to cccur
.6.,
9 9.a,;
except fc scue s all 2 Cu..* which ight be CheOically bcuded and al*ead'f
+
s's
'l
_ o. a p. a.*
- %. e ~. aa* e Q a e a.4.,a om.
. %. e
.1..a.A.).e
, anA.,. e.. e.,. s.. a.
- e. - n.s. %. e :.. e.*
3 mF a.,.4.g 3.
C.'s a.'. c '.. '.
- 2. a. s a 3 a.'.o. g. e.d.#u e.'.' a.d d..' *.. g.-...'. c.. ~.~.. a s e 6' 1
.ea,
.o
...w e.
.,.s
., se.3 2...
.w....
n.e.
4.3.1
.eae.,...
.w... e.. e,..__ c.
1 c.
c.
..a
,+
v concern ninimi:e the pctential phenc enon.
P Reaction of itean with Eu =ctic mic a
-1 LI ex.,.g.y,
.n~u..-
a
..e,g.,n..a..
.a,
.<a
.._. _e;.,
.s,y.a.a q_.
.,a.a,....,..a..,.,
u
.a 14 4-
.O s..M. f..g
.M.
..p 4
g q 9 9.
.3 qqq a.
y 9 J.. ;g...., C a e. g..a 4-gg A
g,g N
D d
'1 FT e
'. f fs
/,
e.
' ',\\ t )
\\
\\_,
+
i<
1
,\\
I m
8=
T ww._
___T"#P 9'G"y"#,.
f, y, gu qwww per.epg..; y. p p.g. g pp. 9.,ymy n%.g
.g,y ang,.,.u.. p 9_.,que gy-p a. *Q.r,,,,,,p m.
1 m __
.u..
M4
.- %,co-wA1% m.*e'-_mer s'.h w.
wua
-.m.m a-&-= AJIlik1 19-11 retal to the stes=.
This has not been observed to occur excep: w1:h :he Zr-Al eutec:1c fo=ed in Zr-3,4,5 sed reported in IN-1453,3, a: te=pera-tures well above 2200*?.
Finally, as stated in Section 19.2, the ficwing liquid deccuples the reae:ica system. This =eans, as shewn in experimen:s si=ulating reactor "nel envire=ent, 19.2,13.19,19.19
- hat little celt would for= and ve 711::le reae:icn would occur.
u'C,.T.
- u.,,3 4...., a. e s.
v.. o.
l l
ORNI.
'.7 5 213 15 presents a qualitative descriptica of :he results of burs:
. a s. v.. o. i
.4..g ega a.o.:c _. a.,c,,. a, eu....J,
".y.. g
- e. 3. g. ~.33 e m.. -
.4 a.,.7 fe.
si.ca it used a s: sinless steel grid and was :.:n in an Argen a::csphere.
Since :his test was no: designed to s:udy eutec ic fc=ation and, there-fore, did not include all of :he para =e:ers necessary to evalua:e :he o
e-.'1.'
. ". -. e". ~. e -..'.- e.< -..' c '..,.' ~. 3. =. su A ~ s
(~.'. ~.n' - =. 3 a..' ~.oo.'.~.a.~.'.~
~
e for:ation) cannot :e :aken as represent.itive cf the reactor situation.
.u..,.
.a.a cn e -..
... u <
2.2:.*2
._a....:.,.,..
. e as.s... e. u.e ae.:, a.,..,.
e e
e.
3 that potential physico-chemical reacticas are sufficiently underst d a:
this tire, and do cc~ represent a =2j or uncertainty '-1:h respec: Oc safety c alculations. The pri=ar/ ::ncerns raiacd -ith respect to potential ph'/sice-chemical reactions (other than Zircalev. steam rea :icns) are these er ressed
"., ~..e"u...'~- ". ' C ~' c c ~. e.'
.= c ' e. ~..' s ~ 2.
~%. s e ~. ~ ~... ~. ~. e A.o o.
- o., e 1.-
~.~ '. ' =.
~
shared by any of the recogni:ed experts consul:ed en this ratter.
lif, j
,n
. s.e g=
_-y
~
1 Q
m.
,..~A 4
u, c. ;% g
,"*^^_mt h
g
. q A%, #.g q'p 9 m_
6oe
$a v.+
19-12 r-h..
c5
.c,.
x$
In Sectica 13.0, E=b'rittlemen:, a :e=perature li=it of 2100*F vas suggested.
I:
1 If this 11:1: is adep:ed, only very s=all a: cunts of :1rc-nickel eutectic A,ix
'g$
could for: and gross =elting of inconel veuld be precluded.
he kinetics w+
c 16 and ther=odynamics of the other physico-che ical phenomena are less 11:1 -
a,&
. :.s'
@I ing than the =ir -steam reae:1cn. It is, therefore, the Regula:Ory staff's v
+='
..:w,
-4 epinica that na additional limits are required.
.-._ y
-5:,
r;
,o 0?liL in their vri::en cc==ents -*12 suggested nu=ercus i=pr:ve=ents :o
- a..,
_.s
- his repor:. Additionally, C32;!. c : curred that the various reactices con-
- c..>
.,4 sidered in this chapter are unlikelv, :o have serious effect in a 10CA.
^*
-m
.1.
.C;C in their vritten c==enta fel: : hat all reactic=s bu: the ircalcy-y<
incenel eutec:ic vould be precluded belev 230C*y
- 2 The 3&W e= peri-
.w V
rents were cited.-#
2-Tc=ulatics of a ti=e-temperature lini: is recc -
- 2. :
2..s cended; h:vever no quan:itative sugges icns vere presented for for=ulating G;
such a 11:1:. As no:ed in See:ict 13.0, we have suggested a ti=e-temperature l'
11:1: for oxidation; hcVever, the basis for deriving this lini: did cc:
7 J
[
includa pc:en:ial f:=ation of Zirconius-Nickel eu:ectic. Our basis for 9
believing tha: autecti: for:stic: is not a proble: is based on :he
- . J i
'/
fac: cts discussed above.
c l
4
..Y a
- 9..hw
'1
'd
.e l
-M
%4
,4 8
.6=1 d
p
e 8
er t
a oJ>
a
- -v'Jf. --
- e
.-. mm'.,c,.,C.-m.,__-_4-__
s-m.
gr-m
Tk, m. --].-w n - 2 Alw w; ~t:rm -v..,.a _m& w. un n
. _muy.: in+4h$
.i v,is 7
- c. r.: _ o. rv..C. 5 :. n,R t o. 0 n r,- ~
- o. CD e. u..v. n-CC-CL-- v C Ae w. C.. C.. d 1
ECCS Rulemaking Exhibit er Transcript Vo lt=e No.
19.1 H. A. McLain, ?ctential Metal '4ater Reacticns in Light 'Ja:er Cooled Reac: ors, CF5:.-NSIC-23, August 1968.
95 19.2 M. J. Graber,~4. F. Zalecny, R. I. Sch :nk, A Me:211ur71 cal Ivaluatien of Siralated 3W Iner enti Core Ccclin2 Tests, I5-142 (Mar:h i
i l o., ~..
.3 l
19.3 ICOS Rule:cking Hearing, Occket FM-50-1, Transcrip: page 14:15.
Vol. 72 8
h 19.4 J. D. Duncan, J. I. Lecnard,~~ne il Rescense rd Claddin2 ?ericinance of an 12 : e t-. al ly Pressuri=ed. Sir:21 v-Clad Eiralsted 3W 7':ei 7"-d'a Cooled bv 50:3v Cnder
- ss-of-Cecir -
c., u...... e :. Ac.13.'.'.a, Ae.4.'.i c. '..
.'t.,.
-. ~..-.
s 19.5 ICC3 Rulemaking Hearing, Cccket RM-5C-1, Transcript page a64C.
Vol. 23
'J e
i
'W
.... **-*; V W n W T v w n%..
- m.. _'T.:M_.. y ?^=*re--n w w w---- ~..w ~,. m : m n. ; e.
O-3MA g
-gh*
~e, is- ~. :,m n.
h 9
E g,'
g ix
.s
- ,q=.-
.k
[
g
-'gg--
-.y
a, -.
...w e... '....i,,.,.-
n_ _. z...w,
<. --..u
.:.ne w,..,,
- c. w w c; 4)..; 4 ;.m, p.~em_w...
(_.,
y
. - ~. g.,,,a
..wJ
._ m%c,.,,.
~
_..y N
k.,).
iy 19-14 N
$!E h
REFERENCES (Cent.)
'A v;.
r-FF ECCS Rule =aking s
7xhibit or x
%.<)
Transcript e
y
.,c l e= e N..o.
.m"_
e 0,5 19.6 D. F. Fcrd, 'd.
W. Kendall, Ja=es J. McKen:ie,
3
~.$
A Criticue of the New AEC 2esirn Criteria for
."m4 D
Reacecr Safer. Svstens.
Unicn of Ccncerned pj y
~. 7 Scientists, Cambrid;e, hss., Cc:aber 1971.
270
- f
.m)
A 19.7 Testi=cny of Participant Censolida:2d Naticnal
%e
. '[
Intervenors for ECC3 Rule =aking F. earing, 9.,
'r i Occket RM-50-1, h rch 1972.
109t.
4
..w m,
19.3 ASI.3 Eearing Transcript, Censolida:ed Ediscn n
,j-Cc=pany of New Tork, !nc., Indian ?:in: No. 2.
.c
,c ck e t
,.<.c.
.e. r..,, pp.
.,.,oc v
f.
s
.y 'l 3
.,1 l
- .%.1
.T Q. Q, 4 k.4 4., pp.".o.".%.
a O
s
.s, b
,Q a s. 4 2.,
u,.e. a
. c..,
..10 i.
i., p..,.:.
v.
..1,
-n
.q h
19.11 Reference 19.4, pp. 4610-4
'le '
23 s d.
~.
S Q.1.a
.3gga.
3.
m.,
.g..g.
.g 3. :.
- 7..... h. 'e"**
'.I e
s r-
- +
,3
.nm.
.JJ W
d P
k (M
4 e
i e
,J h
O
,-1".'P** "#g94meeg 4NnF N Py g
,N**
- N WN 5*%
.'_r* ry *spf ? WPg g.gpq-p s %e y *4ryge.e.g.N'7 M n.gre. Y_.u. f_ sp,gfr. * -e *=g--W.T P_p. g v
.m
.W%8'
.j
.g-
=a,
. m, an
-~g 4-
_a m
_g e
g 7.
dnp -%a ? %.,y:e o_. =-2 a.% r--eshoxN"x +, h)1kh, O * :w - -m e, - m C c= d..
4 _. :-
~%
n
.e - Wh.g,#-+W x.'-.
~-
- ~ Y : ~'. ' -
4 h
19-15 l
REFERENCES (Cont.)
ECCS Rulesaking Exhibit er i
}
Transcrip:
Volt =e No.
19.13 M. Hansen and K. Anderke, Constitutien of 31nari Allovs, 2nd edi:icn, McGraw-Hill,1953.
19.14
- 0. Kubaschevski and C. 3. Alccck, Metallurtical S.e mechemistri, 4th Edi:ica, t'
Perganen ?ress, 1967.
19.15 Leo 3:ever, UCRI.-16576 (1966).
19.16
?. L. Rittenhouse, D. C. Echsen, R. D. Waddell, Jr., The EF --: ef Li ht-Water Rea: cr Fuel Red
?silu e en the Aras Avails'c le for E ertency Ccolant Flev ?c11 vi: 2 s Less-of-Ceclant Accident, CPSI.-475: (Jan. 1972).
506 19.17 Wisconsin Electric Fewer Cenpany, ?: int 3each Nuclear Plan: No. 1, Stz- -'m Tes: Si - arr, Docket Nc. 50-266, March 1971.
19.15 Testi=cny of Westinghcuse Ilectri: Corp. f::
ICOS Rule =aking Hearing, Occke:
.M-5 C-1, March 1972, Appendi:c 3.
1G75
/\\ /..4
/ !)
kIO k
',\\
i g
, 2. ' u* '
~[aI N [,.
,TfT,
- N y.?_,
~2-
-- - n.a
s
.c I
e- - --.
r,,m-e-.
,s p.
w. ~. 2,. -...
. -.. w.. i :u.,, w.. ;
w
_.. mcm.w,.w _. m mm w_...
wm 4y.
gun. g;__
4M
- .n?
19-16
.s
- 4.,.Y 1,e
,p REFERENCES (Cent.)
+
a-av
.b..el 2
ECCS Rulemaking W.
Exhibit er am Transcript d%'d g
Voltre No.
'9.19 Testi=cn7 of Denald EcY on 3ehalf cf Babcock N
y
& ~41.' :cx for ECCS Rule =aking Hearing, Occke:
6-N RM-50-1, March 1972, Appendi:c 3.
1059
.4 e_ _
4 E
19.20 L. 3aker. Jr., R. E. ~411sen, C. 3arnes, " Studies
- 7..
of CO, Steam Reac: ion," Che=ical Engineering
.~e a
Divisien Si-" rf Reper:> July-Oece=ber 1963 >
.i s
i i
g A'U RCO-3823, Ma'f 19 6, p. 37-49.
~.u a
4 19.21 M. ~4 Mallett, "Zire: tium-Uraniu= Oicxide l
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Reac:ica, Chapter 7.
pp. 342-364, U ani'r:
y Dicxide. ?rcee-ties and Nuclear Atelication, J
J. Selle, ed., N'tDRD, US A C, July 1961.
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4 4
1 19.22 ASC v-itten ec=senta on Chapter 19.
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