ML19326B889
| ML19326B889 | |
| Person / Time | |
|---|---|
| Site: | Arkansas Nuclear  |
| Issue date: | 07/06/1973 |
| From: | Phillips J ARKANSAS POWER & LIGHT CO. |
| To: | Anthony Giambusso US ATOMIC ENERGY COMMISSION (AEC) |
| References | |
| 5311, NUDOCS 8004180617 | |
| Download: ML19326B889 (2) | |
Text
_ . _ _ _ _ _ . _ . _ ____.-..-..-.-....__.- _ a- --
AEC D' ltIBUTION FOR PART 50 DOCKET M1 tIAL (TEMPORARY FORM) CONTROL NO: 5311 FILE: khC-FRCH: DATE OF DOC DATE REC'D LTR MEMO RPT OTHER Arkansas Power & Light Company Little Rock, Arkansas 72203 7-6-73 7-9-73 x J. D. Phillips I CC OTHER SENT AEC PDR X A. Giambusso SENT LOCAL PDR X 3 signed 67 CLASS UNCLASS PROP IN70 INPUT NO CYS REC'D DOCKET NO:
g 50-313 DESCRIPTION: ENCLOSURES:
Ler notarized 7-6-73. . .re Amdt # 37. . . Test Results verifying the performance of furnishing supplementary info...trans the the cavitating venturis installed in the following: low pressure injection lines to produce the desired flow rates.....
ACKNOWLEDGED PLANT NAME: Arkansas Nuclear One, Unit i 1 DO NOT PtEMOVE FOR ACTION /INFORMATION 7-10-73 fod BUTLER (L) nSCINENCER(L) ZIDIANN(L) REGAN(E)
W/ Copies W/2 Copies W/ Copies W/ Copies CLARK (L) STOLZ(L) DICKER (E)
W/ Copies W/ Copies W/ Copies W/ Copies COLLER(L) VASSALLO(L) KNIGHTON(E)
W/ Copies W/ Copies W/ Copies W/ Copies
~
KNIEL(L) SCHDIEL(L) YOUNGBLOOD(E)
W/ Copies W/ Copies W/ Copies W/ Copies INTERNAL DISTRIBUTION dhtEG FILEj TECH REVIEW y DENTON LIC SST A/T IND AEG YUK HENDRIE .-GRIMES BROWN (E) BRAIIMAN yCGC, ROOM P-506A SCHROEDER .,,GAMMILL DIGGS (L) SALIZMAN MUNIZING/ STAFF eMACCARY a KASTNER GEARIN (L)
.,, CASE INIGHT BALLARD J OULBOURNE (L) PLANS A AMBUSSO e PAWLICKI SPANGLER LEE (L) eiHCDONALD BOYD SHA0 MAIGRET (L) DUBE MOORE (L)(BWR) ,-8TELLO ENVIRO SERVICE (L) e,DEYOUNG(L)(PWR) HOUSTON MULLER SHEPPARD (E) INFO SKOVHOLT (L) ,,NOVAK DICKER SMITH (L) C. MILES
.,P. COLLINS A OSS KNIGHTON TEETS (L)
<IPPOLITO M UNGELOOD WADE (E)
REC OPR ,,, TEDESCO REGAN WILLIAMS (E)
. FILE & REGION (3) -LONG M ROJECT LDR WILSON (L)
MORRIS LAINAS MIRAGLIA STEELE -BENAROYA HARLESS M'OLINER i - LOCAL PDR Dardanelle, Ark.
EXTERNAL DISTRIBUTION []L e l - DTIE(ABERNATHY) ,. "(1)(2) $9)-NATIONAL LAB'S ORNL 1-PDR-SAN /LA/NY 8"I - NSIC(BUCHANAN) 1-R.Schoonmaker,00,GT,D-323 ,,,'" 1-GERALD LELLOUCHE
., 1 - ASLB(YORE /SEIRE/ 1-R. CATLIN, E-25 6-GT BROOKHAVEN NAT. LAB 310008 M/"H" ST. CONSULTANT' S 1-AGMED(WALTER K0 ESTER p, f6 - CYS ACRS EMIIEME Sent 7-10-73 to NEWiARK/B23MEhEIXEDE3r RM-C-427-GT E. Coulbourne for 1-GERALD ULRIESON...ORNL l-RD~mm J.309.GT .
d 'U4180 4 Q N Dist.
. , n H E L PIN G $1 G I L O A R o< A N S A S Regulgtory File Cy.
ARK ANS AS POWER & LIGHT COMPANY July 6, 1973
}/ j' S
q ', O % h ~.
4 N' n * , ,.
4 N Mr. A. Giambusso Deputy Director for Reactor Projects Directorate of Licensing United States Atomic. Energy Commission Washington, D. C. 20545
Subject:
Arkansas Power & Light Company
- .rkansas Nuclear One - Unit 1 -
Docket No. 50-313 Supplementary Information .
Dear Mr. Giambusso:
Amendment do. 37 to the Arkansas Nuclear One - Unit 1 Final Safety Analysis Repcrt 1.n::hded a description of a cross-connect betwcen the two low pressure injection lines to the reactor vessel which is designed to improve ECCS performance in the event of a break in a core flood tank injection line. Enclosed are test results verifying the pertorn.cnce of the cavitating venturis installed in the low pressure injecticn lines to produce the desired flow rates.
Very truly yours, y
, )x.[ ,.; u ; y,
'J.,D. Phillips Senior Vice President JDP:tw q g
/
Enclosure S e s'Sh. _5 -
&? >
l
- 1 l m 5311 i
~
TAX P AYING. INVESTOR OWNED MEMBE A MIDOLE SOUTH UTILITIES SYSTEM
<p e STATE OF ARKANSAS )
) SS COUNTY OF PULASKI , )
J. D. Phillips, being duly sworn, states that he is a Senior Vice President of Arkansas Power & l.ight Company; that he is authorized on the part of said Company to sign and file with the Atomic Energy Commission this Supplementary Information; that he has read all of the statements contained in such Infonnation, and that all such statements made and matters set forth therein are true and correct to the best of his knowledge, information and belief.
s.-
. ,/ J ), ,
J.~D. Phillip V ~
4 SUBSCRIBED AND SWORN T0 before me, a Notary Public in and for the County and State above named, this [ day of h M J /
,1973.
t
, yo , g "/)7 N u)f f)
. Notary <Pubi ic ~
My Comission Exp'res:
My Commasson Dpues September 1.1974 j . .' '
i Attachnent Regu!A+ory Filo Cy.
(* *
- A <s
.- CAVI . .,71::C VC:Y1'".I Tr.".T nTj:!*!.T", ppp Crossovcu lines con:sining cavitating venturis between the redundant low prescure injection (LP1) headers in the Decay Heat Rcaaval System arc provided to insure that sufficient flov vill be available for core cooling if a rupture occurs in the inlet piping. Figure 1 shows a simplified schematic diagram of the inlet piping and crousover network.-
Flow through a rupture downutress of the venturi is limited by the device when it ic in the cavitating mode. Velocity head at the throat is equal to the total pressure head, so that the fluid reaches its vapor pressure in the throat and flashes into vapor, limiting flow. Delivery of at least one half the availabic flowrate of one DH removal pump to the reactor vessel is expected. through the intact line assuming a single active failure in addition to the rupture. -
T: sting of the cavitating venturi by Babcock and Wilcox at Alliance Research Center has shown that the devices will perform as specified. Data recorded during these tests has insured us that the above condition of minimum flow "
will be met. -
Initial testing of the venturi (Venturi No.1, Figure 3) shows that flow' varies as the square root of the absolute inlet pressurc ratio. The inlet l 1
configuration of the device was remachined and retested to insure design flov l l
cud to minimize noise and vibrntion. Results of , testing of the remachined device
- f i
cre shown on Figure 3 an Vent uri No. 2. Final profile of the device is shown 1 in Figure 2. l Data' below, for Venturi No. 2, shows th'at the device will deliver a constant l
flow for a greatly varying differential pressure, as expected.
Upstream Press Downstream Press Flowrate Pi (psig) P7 (psin) .
(GPM) 111 .. 0 - -
1910 112 15 1910 113 25 1900 114 -
34 1890 116 51 1880 118 100 1870 --
c -2 -
- 4. .,
A ,,
s Cavitating venturis'are essential to the proper function of the core cooling system, and uf th proper systc:a design, inclusion of thes,c devices will protect .
Egainst' loss of~ cooling flow through inlet line rupture. .
I i
i *
. s.
y.. , .
t
/
p g
. e
- f * .
48
,'. . . ~, .,2 , *
.. . ' . * ' + * ' e
{ ,,, . . . .
. . g .: . ; . ,
. r . *. .
. g e . .
- ; . s ,.
. f .i i + . e .... ,
,s g i* 3
- n e' . . .
- . g
, . o D +
e D .
! . 's,,
, p ** * %
e e e g*
. . *e e
- e h.
. e
. /
.e . s P,. ,
e %
- e
- e T
y e - , - - -- , e--*- y .- y, , v v ,,--p-< y-e, - -- --w- w,--~,r- m - , , +ww,.w ,-ee--er--* ,-=w-ww----w werv--g-+ - ,
, c. ..: .. A . ; -- - . . ....- ,7 - .
.7s. ... _ , , ,
s .
l I
From Core Flood Tank s 9 -
5 j' 6
l f Y d
m I , Reactor Low Pressure Cavitating / Vasel Injection Pumps Venturis N g
.. Y f s e
m I
/
'\% 1
-.- Nr =
{
1 From Core Flood Tank Figure 1 - Schematic of Heit Removal System ..
- t p
3.:r . ..
- . . ~~ ~ . - - - -
n'. '
12-3/16" w .
l - . . .
. s i
5-7/8" l : " - 1:
- m 1-15/16" ',
t :
(o u 45o 5' 10* I L 2
- t e a, : I 20*
's e N m 60* rr -
25*'t p~
- 6-3/8" .t T .S
,=o h.
FJow L2 .477" -
- v -.
.- o L'l/4"
~l 2-7/ 8' .
e %
15-5/16" -
. . . . . . . . . . . - . . . . . - --~? ,,
. 7 Figure 2 - Dimensions of Venetiri .
\
g l . *=
l
o....
-e
. sw .
.... n _4-x e
e . .
/
200 . . .
,. ! g g. ... .,.; . ; .: - t-I . : ".j,. .._- t a.
_~~*l a .. .. ._ .
. ,.l. .- . . . .
, - b; Tc!acrature
_I,_,_. ._-.
..=
H.,....1.......--
.__4_. - . _ -
. ...n .. e.. : u.n .
. .. . 4.... : . i. :. l. . m.L '
150 - - - - " "
G - 115*F ::-!,.: l 3.3. .
...i.i.. _
- _ p. a. . .
.j-.e
-r ._ ..
.e:n 160.F
"....:.'.a.
. g
.g ...
. y.,1 ...
- p. . .L.. _.
. ' t a rg r r! f ! s t i: i 8
! '.4 . : . . .t. .
e /
fjjl.
.1 .gg'i -
tf.'. .e
. .j . i . . . .
. turi h0'. : 3. N Q.3-,O 'f;"-
g
'i*! i"]'
~
. i. .,: i .; . , . t8:.:,.I .
' .. 7.
....... . . . o?i I. .. a.t..S
- * ' " *d)...U I #
l.,., ::,.. /:.'t::..'-
s.
e 9
100
' . . . .r8 -
j_ :.- : :r :
.. .- , / .. . a .
..: m.. .:.. _ ;n. . . . .
D = g-. , -. . . h.....:
u) 2~
...i .[.. .
. t. . . -
- /
. r. s. .
y, o . :. . :: -
f = . ... -
- - g:..::
.:..:n. ? I
.:1: . n: := ::: .: : . :... I::.:: ::d -. .:.- e
- :r n . . - : :}.- - -:V . t : . c :. . .. . ::.l ---::-
.: r : / { '
t : :-
a 80 -- - - ^ -- - - -
e n:: . .rf.:
. / g ... :. -:.- - - -
- ::...: ~ :y .. ::.:
. : .: .=
g C :
g . r: : :.:.. : l :- :- :
g -
s *
...i..:
. ...* i.: ... ../:'" .
- 2. . . : : . r c:
- r. . ._. . : . :; : . ;;, ::: .,..
........I. :: . .=
4 *
.. ., 1. . I . . . . . . .
... .. . . ...1 ... .,... . . . . . . . .
. 1
. . ... ........ .. ... .. . . . . . . . . ....s..._..,c...
.. . .., ...p
.. u.. . c.. 4
. . . _ . . . . .3 m.. . . .....- .. . . . . . ..:..,..
. . . , ...vu. . . . .. . .. . . . . .. . .~.
gg . _. .
, . . f..... ... . . . . _
.....l.,.... . .... .- ....
.......I,-"... .... .... . ...
. . ,1. .., . . .. ........ ... .... .
.+ .
.. a ..i.,.. .-. . . , . . . . . . . !, .
. .. . . . /. .l,. . . ,, ... ... . . ., . , .
....g...,......
...... _p
...i. ., ..... .L .. a......
50 - ' " ' 3. ..'" - " - - ' - ' ' ' ." ' - " "- -"
1300 1400 1500 1600 1800 2000 Flow - GPM Figure 3- Flor rate vs Venturi Inlet Pressure for Cavitating Mcw k
u