ML19256A714: Difference between revisions
StriderTol (talk | contribs) (Created page by program invented by StriderTol) |
StriderTol (talk | contribs) (Created page by program invented by StriderTol) |
||
| Line 20: | Line 20: | ||
=Text= | =Text= | ||
{{#Wiki_filter:' | {{#Wiki_filter:' | ||
BEFY)RE Tile UNITED STATES NUCLEAR REGULATORY COMMISSION In the Matter of the Facility Operating License) | BEFY)RE Tile UNITED STATES NUCLEAR REGULATORY COMMISSION In the Matter of the Facility Operating License) | ||
) | ) | ||
| Line 33: | Line 30: | ||
;, , | ;, , | ||
r ,? | r ,? | ||
s By 4 | s By 4 | ||
G y /,f t (c' C. K. Millen, Senior Vice President KELLY , STANSFIELD & 0' DONNELL Bryant O'Donnel Robert E. Thompson Public Service Company Building Denve r, Colo rado 80202 Attorneys for Applicant 7901090AS4 | G y /,f t (c' C. K. Millen, Senior Vice President KELLY , STANSFIELD & 0' DONNELL Bryant O'Donnel Robert E. Thompson Public Service Company Building Denve r, Colo rado 80202 Attorneys for Applicant 7901090AS4 | ||
STNfE OF COI,0RADO ) | STNfE OF COI,0RADO ) | ||
) as. | ) as. | ||
| Line 44: | Line 38: | ||
C. K. Millen, being first duly sworn, deposes and says ; | C. K. Millen, being first duly sworn, deposes and says ; | ||
That he is Senior Vice President of Operations of Public Service Company of Colorado, the Licensee herein; that he has read the foregoing Application for Amendment to Appendix A of Facility Operating License and knows the contents thereof, and that the s tatements and mat ters set forth therein ace true and correct to the best of his knowledge, information and belief. | That he is Senior Vice President of Operations of Public Service Company of Colorado, the Licensee herein; that he has read the foregoing Application for Amendment to Appendix A of Facility Operating License and knows the contents thereof, and that the s tatements and mat ters set forth therein ace true and correct to the best of his knowledge, information and belief. | ||
-%)"' | -%)"' | ||
. -.. . c . | . -.. . c . | ||
| Line 52: | Line 43: | ||
Witness my hand and of ficial seal. | Witness my hand and of ficial seal. | ||
My commission expires: . ' ' ' ' /*' . | My commission expires: . ' ' ' ' /*' . | ||
t t . g n i | t t . g n i | ||
Notary Public | Notary Public | ||
Specification LCO 4.2.18 - Primary Coolant Depressurization, Limiting Condition for Operations The reactor shall not be operated at power unless a flow path for depressurization of the primary system exists that includes the HTFA, Helium Purification Cooler, Helium Purification Dryer, Low Temperature Gas-to-Cas Exchanger, LTA, and associated valves and piping to the reactor building exhaust ducting to permit depressurization of the primary system as a function of time consistent with the basis of this LCO. | Specification LCO 4.2.18 - Primary Coolant Depressurization, Limiting Condition for Operations The reactor shall not be operated at power unless a flow path for depressurization of the primary system exists that includes the HTFA, Helium Purification Cooler, Helium Purification Dryer, Low Temperature Gas-to-Cas Exchanger, LTA, and associated valves and piping to the reactor building exhaust ducting to permit depressurization of the primary system as a function of time consistent with the basis of this LCO. | ||
Basis for Specification LCO 4.2.18 In the event that a loss of forced circulation occurs, the time available prior to starting primary coolant depressurization shall be as follows: | Basis for Specification LCO 4.2.18 In the event that a loss of forced circulation occurs, the time available prior to starting primary coolant depressurization shall be as follows: | ||
| Line 67: | Line 53: | ||
Start of depressurization following onset of loss of circulation is initiated as a function of prior power levels, two (2) hours from full power operation, and is completed in approximately seven hours. In order to permit greater operational flexibility, it is desirable to take credit for any idditional time which may be available under less than limiting conditions. | Start of depressurization following onset of loss of circulation is initiated as a function of prior power levels, two (2) hours from full power operation, and is completed in approximately seven hours. In order to permit greater operational flexibility, it is desirable to take credit for any idditional time which may be available under less than limiting conditions. | ||
Page 2 Analyses indicate that there are less limiting plant conditions which significantly increase the 2-hour time limit to initiate PCRV depressuriza-tion following the onset of an LOFC. The greatest increase in the 2-hour time limit is obtained when the reactor has been shutdown and maintained in a shutdown condition for a period of time prior to the occurrence of the LOFC (Figure 4.2.18-1). Figure 4.2.18-1 summarizes the results for the time avail-able to initiate depressurization following an LOFC as a function of time from reactor shutdown. These results show that the time available increases signi-ficantly with hours of reactor shutdown. This is especially true beyond 550 hours when the af terheat falls off rapidly (see FSAR Figure D.1-9) . | Page 2 Analyses indicate that there are less limiting plant conditions which significantly increase the 2-hour time limit to initiate PCRV depressuriza-tion following the onset of an LOFC. The greatest increase in the 2-hour time limit is obtained when the reactor has been shutdown and maintained in a shutdown condition for a period of time prior to the occurrence of the LOFC (Figure 4.2.18-1). Figure 4.2.18-1 summarizes the results for the time avail-able to initiate depressurization following an LOFC as a function of time from reactor shutdown. These results show that the time available increases signi-ficantly with hours of reactor shutdown. This is especially true beyond 550 hours when the af terheat falls off rapidly (see FSAR Figure D.1-9) . | ||
The next most significant increase is obtained when the average core outlet temperature is less than about 1000*F at the onsc of LOFC (Figure 4.2.18-2) . | The next most significant increase is obtained when the average core outlet temperature is less than about 1000*F at the onsc of LOFC (Figure 4.2.18-2) . | ||
| Line 75: | Line 58: | ||
The least amount of relief in the 2-hour delay time is obtained from the case where the LOFC occurs during power operation above 25% of rated. At 25% power operation, the delay time is 2-1/2 hours decreasing to 2-hours for power operation at 70% and above (Figure 4.2.18-3). Figure 4.2.18-3 summarizes | The least amount of relief in the 2-hour delay time is obtained from the case where the LOFC occurs during power operation above 25% of rated. At 25% power operation, the delay time is 2-1/2 hours decreasing to 2-hours for power operation at 70% and above (Figure 4.2.18-3). Figure 4.2.18-3 summarizes | ||
Page 3 the analysis results ass tming the LOFC occurs during power operation above 25% of rated and there is no forced circulation following the reactor scram. | Page 3 the analysis results ass tming the LOFC occurs during power operation above 25% of rated and there is no forced circulation following the reactor scram. | ||
An additional one-half hour is gained on the two-hour time limit at 25% power operation. There is no relief in the two-hour titae limit for power operation at or above 70% of rated. | An additional one-half hour is gained on the two-hour time limit at 25% power operation. There is no relief in the two-hour titae limit for power operation at or above 70% of rated. | ||
Depressurization is completed by venting the purified gas to the atmosphere. | Depressurization is completed by venting the purified gas to the atmosphere. | ||
Fr . , . . ~ . . . . . . . . . | Fr . , . . ~ . . . . . . . . . | ||
: g:. i .. + - | : g:. i .. + - | ||
::l | ::l | ||
--. ._,a. . | --. ._,a. . | ||
; * * .: c. . t " n=;. :n a . : m * | ; * * .: c. . t " n=;. :n a . : m * | ||
. : : :=;. .. :~ nm:: - - 3 | . : : :=;. .. :~ nm:: - - 3 | ||
+ . _ _ . | + . _ _ . | ||
- :- L._....._ ";.u- - - | - :- L._....._ ";.u- - - | ||
. . . .. .. ._ nt' hi . | . . . .. .. ._ nt' hi . | ||
.? | .? | ||
. ;- . . | . ;- . . | ||
| Line 109: | Line 76: | ||
* i 'HHil - ";' | * i 'HHil - ";' | ||
* R ' E ' ' ' ^ ^ I i5 : ** "" * ! | * R ' E ' ' ' ^ ^ I i5 : ** "" * ! | ||
:: . . : .! *. :y: | :: . . : .! *. :y: | ||
::!:l | ::!:l | ||
::{:: 2.-. ; ; | ::{:: 2.-. ; ; | ||
7g, nu 9 | 7g, nu 9 | ||
. .;.i . .. p. gn}:: g ... c.n.. ...' .... n7:::n ;_ c:r: 7, g_ - | . .;.i . .. p. gn}:: g ... c.n.. ...' .... n7:::n ;_ c:r: 7, g_ - | ||
......:f: ' | ......:f: ' | ||
.: f t _. | .: f t _. | ||
~****** | ~****** | ||
::t : | ::t : | ||
:!! : + | :!! : + | ||
_- : '1 | |||
'* *******!!?*? ., .v. | '* *******!!?*? ., .v. | ||
::!:: .!.. ... ..:... . . f .. . | ::!:: .!.. ... ..:... . . f .. . | ||
| Line 134: | Line 95: | ||
.;. _ . | .;. _ . | ||
...). ;,, _ _ . . . ;;; . . | ...). ;,, _ _ . . . ;;; . . | ||
. h . . .: | . h . . .: | ||
-------+--+-*+: - | -------+--+-*+: - | ||
'ib! | 'ib! | ||
N! | N! | ||
Mi | Mi | ||
'' * '" I 2-- ZU- ~ | '' * '" I 2-- ZU- ~ | ||
.. * .. ..n.. l *. . : ;_. . .;. u*.. | .. * .. ..n.. l *. . : ;_. . .;. u*.. | ||
::!';:. .. .._:::h .. | ::!';:. .. .._:::h .. | ||
.."."- -:-~n;=;.mn; -;;+n------ ; :. ' -. | .."."- -:-~n;=;.mn; -;;+n------ ; :. ' -. | ||
. :: . : .;. . . .; . ut .un:n u;u_ - - - | . :: . : .;. . . .; . ut .un:n u;u_ - - - | ||
** ""~ | ** ""~ | ||
. .u . .l | . .u . .l | ||
..... , --:;;;; - ::1:: -- - ::+; ---- ; . nt:: : :. :: | ..... , --:;;;; - ::1:: -- - ::+; ---- ; . nt:: : :. :: | ||
: .N ::; ; - : t:: ::f:- * * ::b: *: --+^^ | : .N ::; ; - : t:: ::f:- * * ::b: *: --+^^ | ||
't: | 't: | ||
.."r. | .."r. | ||
t *-* -E: '"". | t *-* -E: '"". | ||
: : .. 7.'n : .h.: '. | : : .. 7.'n : .h.: '. | ||
l:'; , : . l. | l:'; , : . l. | ||
..{.. :: ..l.. | ..{.. :: ..l.. | ||
n :: . | n :: . | ||
. ; , .: rl:.. _ | . ; , .: rl:.. _ | ||
; ;.2m *c f ::T .. . . -. . | ; ;.2m *c f ::T .. . . -. . | ||
| Line 180: | Line 123: | ||
: .2_ __ | : .2_ __ | ||
f . . . . . . . . . . fifk * * | f . . . . . . . . . . fifk * * | ||
*?r_....**.- | *?r_....**.- | ||
'"..~~r | '"..~~r | ||
:: ---"I"..-~"-- | :: ---"I"..-~"-- | ||
:: .:{ : n..u;. | :: .:{ : n..u;. | ||
. + . .: | . + . .: | ||
| Line 192: | Line 131: | ||
..!, : .. :.u:: ......! ::nnd. ..:nu -"j"--~~ --- | ..!, : .. :.u:: ......! ::nnd. ..:nu -"j"--~~ --- | ||
t.: : ;c - .._ . !; umlnu_ ;- *" ' - - ' | t.: : ;c - .._ . !; umlnu_ ;- *" ' - - ' | ||
f f f ... !!!! ! h !b fN!f* + | f f f ... !!!! ! h !b fN!f* + | ||
..I.. | ..I.. | ||
M :: | M :: | ||
+ | + | ||
. . f::. . | . . f::. . | ||
..l..: : : . . ' ; :. . .-,::r.-** : : | ..l..: : : . . ' ; :. . .-,::r.-** : : | ||
..I.. | ..I.. | ||
:: ..... .* ::; n. | :: ..... .* ::; n. | ||
'.-*'+*".4 * .. | '.-*'+*".4 * .. | ||
N. : | N. : | ||
,..... . !. :. . . . . . . . . . . { ::. . _ _::{:: . . . . . { : :. " 7n. . I . .t.::. . . . .::!. :.; - . ::n ' .. | ,..... . !. :. . . . . . . . . . . { ::. . _ _::{:: . . . . . { : :. " 7n. . I . .t.::. . . . .::!. :.; - . ::n ' .. | ||
| Line 219: | Line 145: | ||
.' ;,g, . . . . . . . . . . . . . .. . | .' ;,g, . . . . . . . . . . . . . .. . | ||
O .:t : | O .:t : | ||
; - ::!:: - "- - - - ^ n t :'. J+ n: 7:4=.. ::!:: | ; - ::!:: - "- - - - ^ n t :'. J+ n: 7:4=.. ::!:: | ||
'- . ::!n ,_..; * .: :: | '- . ::!n ,_..; * .: :: | ||
" !:.:..... ...:-*:' ..t. . '::..:; :\::;.: * | " !:.:..... ...:-*:' ..t. . '::..:; :\::;.: * | ||
:: r.. . ..t.. ..t.. | :: r.. . ..t.. ..t.. | ||
.'o q | .'o q | ||
* n - i. :::. :. | * n - i. :::. :. | ||
.--++: | .--++: | ||
.'.: y:::g . . | .'.: y:::g . . | ||
. _ . . . ..... . . . . '*: . *" _ _*_*_j. u . . :*!n | . _ . . . ..... . . . . '*: . *" _ _*_*_j. u . . :*!n | ||
. .a | . .a | ||
.t:: 2.{c .: . n . u . . . . :ln u. . | .t:: 2.{c .: . n . u . . . . :ln u. . | ||
| Line 244: | Line 161: | ||
f* !N! | f* !N! | ||
E!U "..H2_'~ 2. .E_-. !!!h- | E!U "..H2_'~ 2. .E_-. !!!h- | ||
. . . . _ . . . _ ":: " - r: | . . . . _ . . . _ ":: " - r: | ||
n.._.=. ._ j =o u n. : : r =:= .:.=:nn:nnt.==n!..". nu _ .- . E. | n.._.=. ._ j =o u n. : : r =:= .:.=:nn:nnt.==n!..". nu _ .- . E. | ||
. _. n.} _...1..- | . _. n.} _...1..- | ||
n | n | ||
_. . t . __ | _. . t . __ | ||
| Line 263: | Line 173: | ||
,' n $ m** * ' .l l:: * ****n.**:*-* ** | ,' n $ m** * ' .l l:: * ****n.**:*-* ** | ||
* ti-* * "* . P*"n = t n*n . * ** r **r-- t***1;* | * ti-* * "* . P*"n = t n*n . * ** r **r-- t***1;* | ||
n!..!n.; ..C;.** | n!..!n.; ..C;.** | ||
. . . . . .::- a- ;in ^ !1;***!!!** 1'1!!!***.*i".*!*C ~!!!* ** *Crn' -~* *;.' nn .Z | . . . . . .::- a- ;in ^ !1;***!!!** 1'1!!!***.*i".*!*C ~!!!* ** *Crn' -~* *;.' nn .Z | ||
-----+-n.' | -----+-n.' | ||
z . .. _ : - - - m. unun.t-- ~ ~ -- - { ~----- ~.._..-..._...._..~....._.._.f_._.._....._. .n __ ._:. | z . .. _ : - - - m. unun.t-- ~ ~ -- - { ~----- ~.._..-..._...._..~....._.._.f_._.._....._. .n __ ._:. | ||
W [!, -- | W [!, -- | ||
i t * * - | i t * * - | ||
-' 2 :' | -' 2 :' | ||
y ~4 g | y ~4 g | ||
; . n{;' ;=:.':n :.:* | ; . n{;' ;=:.':n :.:* | ||
!.. ;;.l: | !.. ;;.l: | ||
= jn.4. | = jn.4. | ||
| Line 286: | Line 188: | ||
. . .._ t n~;* "~ t i : ; * ** : | . . .._ t n~;* "~ t i : ; * ** : | ||
. *~*n+7 : = r :n. r* | . *~*n+7 : = r :n. r* | ||
l 33 | l 33 | ||
.- y a F-Bi.E E. i. E. .H. .: 'E.. !? ~~ ' | .- y a F-Bi.E E. i. E. .H. .: 'E.. !? ~~ ' | ||
* H C-i" H E. . i. E. . "r ~:i. .'.~" " = =:"E!?. ... . ~~ | * H C-i" H E. . i. E. . "r ~:i. .'.~" " = =:"E!?. ... . ~~ | ||
-p. : *- | -p. : *- | ||
. s. . . . . . _ | . s. . . . . . _ | ||
| Line 304: | Line 203: | ||
2. | 2. | ||
~ *: T * | ~ *: T * | ||
*_ :n | *_ :n | ||
__ ''; .* | __ ''; .* | ||
. . .-_ ---.ll .! t r****! *y! ***1. | . . .-_ ---.ll .! t r****! *y! ***1. | ||
g .* nt ._.* . {3 . ".. n. .i 'l ~ *n_ ? * | g .* nt ._.* . {3 . ".. n. .i 'l ~ *n_ ? * | ||
; . . . . .n n, r : + - * - * | |||
; . . . . .n n, | |||
r : + - * - | |||
* | |||
, c. ., ., | , c. ., ., | ||
3 f | 3 f | ||
" [nd - | " [nd - | ||
g C ,: | g C ,: | ||
x | x | ||
::jn_ _ | ::jn_ _ | ||
E^.__ | E^.__ | ||
; nn = - - q. , | ; nn = - - q. , | ||
'.-7. | '.-7. | ||
.:. .nn..; | .:. .nn..; | ||
| Line 336: | Line 222: | ||
'; n.n "=: *. : *; ; | '; n.n "=: *. : *; ; | ||
:nn=* | :nn=* | ||
+ n=:n.._nrn n | + n=:n.._nrn n | ||
_ . ___ _ . _:.D::: - | _ . ___ _ . _:.D::: - | ||
rr-. | rr-. | ||
:r"1 | :r"1 | ||
. .-. .n - ! | . .-. .n - ! | ||
,.,- [ = :a:r - : . .n= l:. = r: ... . n=:1 - ..nrr . . . - - - . . . : . . c. . . | ,.,- [ = :a:r - : . .n= l:. = r: ... . n=:1 - ..nrr . . . - - - . . . : . . c. . . | ||
n a = +. | n a = +. | ||
c- a x : | c- a x : | ||
-r u-a C '3 n- | -r u-a C '3 n- | ||
_ . . _t.u. _ | _ . . _t.u. _ | ||
. :'* b *iU!Eb.e- | . :'* b *iU!Eb.e- | ||
. - - 2 - b';;: | . - - 2 - b';;: | ||
| Line 358: | Line 237: | ||
- 7:. .1:. ;7.:--3 | - 7:. .1:. ;7.:--3 | ||
::,:: *-- mnn--. _ _ . . . _ . . ' . _ " . _ . . . _ . _ . . _ _u- | ::,:: *-- mnn--. _ _ . . . _ . . ' . _ " . _ . . . _ . _ . . _ _u- | ||
.J ~ 3 C j n.r r -- ^ u t n. . , - | |||
.J ~ 3 C j | |||
n.r r -- ^ u t n. . , - | |||
:. x u s; i | :. x u s; i | ||
T-1. . . . _C**.; t C"l'i~"U . . I=MC ;Cn | T-1. . . . _C**.; t C"l'i~"U . . I=MC ;Cn | ||
. - _' : : 1 | . - _' : : 1 | ||
=. L C ** g | =. L C ** g | ||
. . !J. | . . !J. | ||
nin~~"-"* J8 -' C'_- | nin~~"-"* J8 -' C'_- | ||
a vm . .- . . . u._.; u _ u.u p - -+ - =r lj zq . . . _ . ' . . . . - - - - - - - - c _. p. 7 | a vm . .- . . . u._.; u _ u.u p - -+ - =r lj zq . . . _ . ' . . . . - - - - - - - - c _. p. 7 | ||
: h. A | : h. A | ||
;; ~p | ;; ~p | ||
; | ; | ||
; .2 | ; .2 | ||
.-..d:.._._....--:~<-~ | .-..d:.._._....--:~<-~ | ||
- !i :inL!- * | - !i :inL!- * | ||
' : i | ' : i | ||
'"~=C:----- | '"~=C:----- | ||
'E -- l | 'E -- l | ||
. .r, - - | . .r, - - | ||
, '. 5 .;... . | , '. 5 .;... . | ||
i _--. ; . . i | i _--. ; . . i | ||
| Line 406: | Line 268: | ||
....:: 1. ~ .] | ....:: 1. ~ .] | ||
.u..-.-.=.. | .u..-.-.=.. | ||
s | s | ||
: n. a m . . E. . .- n n ..E_-.. . .. -. . _.m. :. | : n. a m . . E. . .- n n ..E_-.. . .. -. . _.m. :. | ||
,; y 3 y . ,a 3 _ n !. i ..:. _. | ,; y 3 y . ,a 3 _ n !. i ..:. _. | ||
. . . . . . . m. . _ . .n , | . . . . . . . m. . _ . .n , | ||
| Line 420: | Line 276: | ||
.] I ;c ~~P _ "."'- | .] I ;c ~~P _ "."'- | ||
. . .N_ . . ._. ...g_ | . . .N_ . . ._. ...g_ | ||
:: = 7- . _. ,gg._. . _ . - - _ . f:. .f'.._ _ . . _ . . _. ._ ._ | :: = 7- . _. ,gg._. . _ . - - _ . f:. .f'.._ _ . . _ . . _. ._ ._ | ||
. .g-_ _._ ._ ._ . , . _ _ | . .g-_ _._ ._ ._ . , . _ _ | ||
_3, g g 7, | _3, g g 7, j ,l _ . .. | ||
j ,l _ . .. | |||
~ | ~ | ||
t | t | ||
% -^*..~* | % -^*..~* | ||
| Line 443: | Line 293: | ||
-----"..*!.~.i'*~~* - | -----"..*!.~.i'*~~* - | ||
.._ . _ .-.,..... . . , _ , ..-_ .. . . . . . . . . . .. ~. ; , | .._ . _ .-.,..... . . , _ , ..-_ .. . . . . . . . . . .. ~. ; , | ||
S . . r. r :: .. n n.un- --- nu = n.-- E a v , ,. , ' , . - - . . . . . _ .. . . . . . . - . . - . . - - '_ . . . :- r . . ._n: 4.,=:: _ . . _ . _ ..n. . nn n n"r ; .x amme | S . . r. r :: .. n n.un- --- nu = n.-- E a v , ,. , ' , . - - . . . . . _ .. . . . . . . - . . - . . - - '_ . . . :- r . . ._n: 4.,=:: _ . . _ . _ ..n. . nn n n"r ; .x amme | ||
. . _ . . . . \ .. . . | . . _ . . . . \ .. . . | ||
...-..-_~;*.-*.!r..t._*..:!*n;.;."".',._-*.::F..*_*..;;__-*..~~.~~r*_';-~.~_---- .. *' _ . . - -? | ...-..-_~;*.-*.!r..t._*..:!*n;.;."".',._-*.::F..*_*..;;__-*..~~.~~r*_';-~.~_---- .. *' _ . . - -? | ||
'(..: : .. .. . . . . ._ _ _ _ . . .. | '(..: : .. .. . . . . ._ _ _ _ . . .. | ||
4"---' | 4"---' | ||
D . . _ | D . . _ | ||
din a.---4 | |||
din | |||
a.---4 | |||
== : = | == : = | ||
.- IME~f ~~ .$E M~VEH~ t | .- IME~f ~~ .$E M~VEH~ t | ||
. . . . _ _ _ . . _* . _ . . _ . .+ - - - . . . a.*. . - . . . . . . _ . _ _ . . .- . = * . _ _ _* . - = + - * + - | . . . . _ _ _ . . _* . _ . . _ . .+ - - - . . . a.*. . - . . . . . . _ . _ _ . . .- . = * . _ _ _* . - = + - * + - | ||
. + -- | . + -- | ||
.r- :- 1 | .r- :- 1 | ||
.+-.++. . | .+-.++. . | ||
p .._;_n.___......__ : _ _ _ _ nr e.. _ | p .._;_n.___......__ : _ _ _ _ nr e.. _ | ||
7_.. . .. . . . _ _ . . _ _ _ . .. _ . . . . | 7_.. . .. . . . _ _ . . _ _ _ . .. _ . . . . | ||
* ;_.,_..... | * ;_.,_..... | ||
: z=nn . _nn =:. ._ | : z=nn . _nn =:. ._ | ||
.._=m-_. . - . . ..- | .._=m-_. . - . . ..- | ||
;._._._ . _ . . . _ . _ . . , _ , _ | ;._._._ . _ . . . _ . _ . . , _ , _ | ||
th -___ | th -___ | ||
u . | u . | ||
.. +. . . _ . . - . . . . . _ _ . . . _ . . . . . - ..__.___.6._. s . _ . . . | .. +. . . _ . . - . . . . . _ _ . . . _ . . . . . - ..__.___.6._. s . _ . . . | ||
...;.a._.... | ...;.a._.... | ||
..,-.+-..-. | ..,-.+-..-. | ||
._...*..g_. . T. _ ._ _. .. . _ _ _ _ _ _ . | ._...*..g_. . T. _ ._ _. .. . _ _ _ _ _ _ . | ||
M | M | ||
~^--T . . . . . | ~^--T . . . . . | ||
.:p: | .:p: | ||
* . . + . - ."-*'. . . ... | * . . + . - ."-*'. . . ... | ||
.;:: | .;:: | ||
+ | + | ||
_ c . | _ c . | ||
9 | 9 a;:: | ||
a;:: | |||
n.u . . . . | n.u . . . . | ||
1 | 1 | ||
:.tn ..nr | :.tn ..nr | ||
:. .nr:mr=:;. | :. .nr:mr=:;. | ||
+ - - - - | + - - - - | ||
n.---- . . - - - .. - | n.---- . . - - - .. - | ||
:n - | :n - | ||
C g ; | C g ; | ||
| Line 539: | Line 338: | ||
T-- r----- .;.; . . | T-- r----- .;.; . . | ||
.. : . . . .. 7 .. , . | .. : . . . .. 7 .. , . | ||
g | g | ||
:: n ::::: : : ::::: : : | :: n ::::: : : ::::: : : | ||
..j n | ..j n | ||
- -jj@ * $!+-jj-9 * - +""' M " E 7 "J "E. | - -jj@ * $!+-jj-9 * - +""' M " E 7 "J "E. | ||
, . n.n g; . n.n ;g .n_,- , .1 m --. . | , . n.n g; . n.n ;g .n_,- , .1 m --. . | ||
. ._ ntn ::l:: ~~ - - + -- - | . ._ ntn ::l:: ~~ - - + -- - | ||
". . - - -- + | ". . - - -- + | ||
:u.. ; . . . | :u.. ; . . . | ||
.n.-_ . . . :: n :- . :- - - .. . . . . | .n.-_ . . . :: n :- . :- - - .. . . . . | ||
*A | *A | ||
.=~~: | .=~~: | ||
: . . - :a _, | : . . - :a _, | ||
!iti! , l RE , . : :c. iiiii-+i liijimi . : g q -4n.:- 2.;iniu.._ 2 - -- | !iti! , l RE , . : :c. iiiii-+i liijimi . : g q -4n.:- 2.;iniu.._ 2 - -- | ||
j:::__ | j:::__ | ||
. :: .tc ..... _._. nn: | . :: .tc ..... _._. nn: | ||
- ~ - | - ~ - | ||
urn . - - - - | urn . - - - - | ||
:: n.: - - - + + --- - ~ + - + | :: n.: - - - + + --- - ~ + - + | ||
^1 ...ntn | ^1 ...ntn | ||
-:O., | -:O., | ||
::t- 1 | ::t- 1 | ||
.:: M j u- - | .:: M j u- - | ||
- g:. :' , r-+- ::J,n. . . _ _ _ . | - g:. :' , r-+- ::J,n. . . _ _ _ . | ||
.:-.....1... . .. + . . . . . . _ . , +. ..f+ . | .:-.....1... . .. + . . . . . . _ . , +. ..f+ . | ||
n.n + | n.n + | ||
+ - - - - - | + - - - - - | ||
.l y. | .l y. | ||
'. : . j : :. ::: o. . | '. : . j : :. ::: o. . | ||
s H: | s H: | ||
'' lii!! Hill : _l!L t 1 | '' lii!! Hill : _l!L t 1 | ||
| Line 606: | Line 378: | ||
..g.... | ..g.... | ||
". j;=. . uun. . . . . . . _ . .:: n. . u . + -.=r | ". j;=. . uun. . . . . . . _ . .:: n. . u . + -.=r | ||
::{':: | ::{':: | ||
:: ::[:: | :: ::[:: | ||
, .:,n | , .:,n | ||
::l -. . - | ::l -. . - | ||
. _ _ a_:m- n a n. .:. | . _ _ a_:m- n a n. .:. | ||
: g n. - | : g n. - | ||
i!b h b!b _... | i!b h b!b _... | ||
* N!N"fi - : Fi 'ih.r-ti"F** . F--i; J' | * N!N"fi - : Fi 'ih.r-ti"F** . F--i; J' | ||
'i E : -- :ff:- - - - --:g. "- | 'i E : -- :ff:- - - - --:g. "- | ||
i | i | ||
. t =-- r m- n n ; .,n. . | . t =-- r m- n n ; .,n. . | ||
.. ; . . | .. ; . . | ||
-----t. . . :. . .. . . _ . ... r | -----t. . . :. . .. . . _ . ... r | ||
: n.n . . | : n.n . . | ||
. . ::a. ::.. . | . . ::a. ::.. . | ||
::}:: | ::}:: | ||
+ | + | ||
. -t n na..; | . -t n na..; | ||
:: n. . : . - . | :: n. . : . - . | ||
p' - -'-; ::t:: :M;: : ::In . ::{:R.* u n jn . ..n t:: | p' - -'-; ::t:: :M;: : ::In . ::{:R.* u n jn . ..n t:: | ||
+ -*..~ | + -*..~ | ||
c.J :n.n j:: + + + - - --- + -._..:: | c.J :n.n j:: + + + - - --- + -._..:: | ||
n- j n . . . | n- j n . . . | ||
p._ | p._ | ||
. . . . . . . ".3. . n . | . . . . . . . ".3. . n . | ||
n r~ ~- M n . | n r~ ~- M n . | ||
n-+n. _ _ _ | n-+n. _ _ _ | ||
.---- n- _- | .---- n- _- | ||
: o. " | : o. " | ||
. :..: ; - n, . t. :. : *=r + +_ s +: ' u .. '- | . :..: ; - n, . t. :. : *=r + +_ s +: ' u .. '- | ||
..g._.... | ..g._.... | ||
n . m_ =_ . n t : | n . m_ =_ . n t : | ||
. I!!b"_ _ .fh! hii.: inh!b f f N'lifli ~ 1 --N*EU~~4 . 7' - '-- | . I!!b"_ _ .fh! hii.: inh!b f f N'lifli ~ 1 --N*EU~~4 . 7' - '-- | ||
'l&= 4 - - njn ----t -:- | 'l&= 4 - - njn ----t -:- | ||
22 ' | 22 ' | ||
r+.. | r+.. | ||
E-i"--i '"7.t~Cr- | E-i"--i '"7.t~Cr- | ||
. ._O .. . _. _. f CWM2"' 24 - 1"U"CP | . ._O .. . _. _. f CWM2"' 24 - 1"U"CP | ||
= -. . - - :i '. N !.t- .h l | = -. . - - :i '. N !.t- .h l | ||
%- v ..:.. * ::=.= r nc._..:. n;=:n. .nu.: .. . _ .n =a n ._ ;=nn l = =r : | %- v ..:.. * ::=.= r nc._..:. n;=:n. .nu.: .. . _ .n =a n ._ ;=nn l = =r : | ||
l7 | l7 | ||
::; _ | ::; _ | ||
r | r | ||
' * ~ | ' * ~ | ||
| Line 693: | Line 425: | ||
-*---*=*r-+... ._.4_...._..,__ = t*n=_nin== f:nn*nn n---- | -*---*=*r-+... ._.4_...._..,__ = t*n=_nin== f:nn*nn n---- | ||
_~ | _~ | ||
I c:. . a. t. :. : | I c:. . a. t. :. : | ||
:.---- . : m_- n. - =..=. . l._. .. .nu::=.- n | :.---- . : m_- n. - =..=. . l._. .. .nu::=.- n | ||
_. . ~. . . .+-...~.~_-._=.=.u.:.=._=_=.._:,u.=_... | _. . ~. . . .+-...~.~_-._=.=.u.:.=._=_=.._:,u.=_... | ||
_ . . . . . .:n,== | _ . . . . . .:n,== | ||
- - - - :.. =.::......n. | - - - - :.. =.::......n. | ||
u i | u i | ||
| Line 708: | Line 435: | ||
O ~ ~ ::::L.a | O ~ ~ ::::L.a | ||
: .. n nz..!.:J ut=- unt nn=t:= --' "-+-+ n :*=n=:n=nn;* nn ---- " ,n.umn :n n=rn= *.n ::./ =n:=.m. == : | : .. n nz..!.:J ut=- unt nn=t:= --' "-+-+ n :*=n=:n=nn;* nn ---- " ,n.umn :n n=rn= *.n ::./ =n:=.m. == : | ||
M". :.. | M". :.. | ||
:- r re :. . _ .. :=n=_.:n | :- r re :. . _ .. :=n=_.:n | ||
,A -- | ,A -- | ||
.. . _ . _ . . . . . . _ . . . . _ . . . _ _ . _ . . . . . _ . _ . 2 D1 ::. . _ . . _ . | .. . _ . _ . . . . . . _ . . . . _ . . . _ _ . _ . . . . . _ . _ . 2 D1 ::. . _ . . _ . | ||
SU"_'u.J | SU"_'u.J | ||
** j9 . | ** j9 . | ||
==.=...=_.:a.==..*...: | ==.=...=_.:a.==..*...: | ||
.. - . =. n.=. -. =. +- | .. - . =. n.=. -. =. +- | ||
:r.== --t- | :r.== --t- | ||
| Line 724: | Line 447: | ||
. . r =:n=. :. . . . n O x- .,u: _ | . . r =:n=. :. . . . n O x- .,u: _ | ||
- ,0 : ,J u + w :t | - ,0 : ,J u + w :t | ||
. . :n . :; j =c _ _ . -t=na; - | . . :n . :; j =c _ _ . -t=na; - | ||
.n.1.: | .n.1.: | ||
=c2=u=: | =c2=u=: | ||
: . m :. | : . m :. | ||
| Line 739: | Line 459: | ||
~~3. ~ . | ~~3. ~ . | ||
i 3 : $Is a ua jd . . . . . . . @# : Dio-F~Il Ei!c==.E+~I ". O . | i 3 : $Is a ua jd . . . . . . . @# : Dio-F~Il Ei!c==.E+~I ". O . | ||
_ ~ IE ~i'~ N%I - | |||
c | c | ||
_g-- | _g-- | ||
=~.- | =~.- | ||
. . - . . . . . . . . . _ . . - : =. n. : 'u-n - | |||
. . - . . . . . . . . . _ . . - : =. n. : 'u- | |||
n - | |||
, nu a . | , nu a . | ||
=- . . . | =- . . . | ||
o 0 - | o 0 - | ||
ia. | ia. | ||
| Line 762: | Line 471: | ||
.. . . ut,.m. n. ::i.t .i. :.a.i.ji-i+ d ".iii-it=r rimi!/:: t- . '.:i== _ Dii Eij | .. . . ut,.m. n. ::i.t .i. :.a.i.ji-i+ d ".iii-it=r rimi!/:: t- . '.:i== _ Dii Eij | ||
.- a "a % _ ,. . . . | .- a "a % _ ,. . . . | ||
. ;.J k --! m O q ;; . - + n- . . - n; n ;;g , , c;; - +lrfn . . ;_ ___. ::j x | |||
. ;.J k --! m O q ;; . - + n- . . - n; n ;;g , , c;; - +lrfn . . ;_ ___. ::j | |||
x | |||
;" | ;" | ||
: nu ,; | : nu ,; | ||
+ + | + + | ||
: z. _ . . . . ++-:r?~,---t--- = f. = . - - :... : - -- - Q | : z. _ . . . . ++-:r?~,---t--- = f. = . - - :... : - -- - Q | ||
- .. nn.a:: . .: .=- -nn : n | - .. nn.a:: . .: .=- -nn : n | ||
; ~ | ; ~ | ||
u..2 "s i., . | u..2 "s i., . | ||
n.tr.-- un - N. ...:: | n.tr.-- un - N. ...:: | ||
| Line 781: | Line 483: | ||
.. _ r. :nf== n. a n. m =:.- n.u . . | .. _ r. :nf== n. a n. m =:.- n.u . . | ||
C 2G:j o y ilI A. t . | C 2G:j o y ilI A. t . | ||
: - ..= ==i:'="amrn=====M-r =. . p. . .. rniiniE n n n5. = N.Q . . Enn= - | : - ..= ==i:'="amrn=====M-r =. . p. . .. rniiniE n n n5. = N.Q . . Enn= - | ||
~, ue_ | ~, ue_ | ||
u, | u, | ||
* 1,2 ' = + | * 1,2 ' = + | ||
: n. _ c..p.. c .:= = : :-nnn= ==n , -- . . .n.:x == =: . -. . . _ -- | : n. _ c..p.. c .:= = : :-nnn= ==n , -- . . .n.:x == =: . -. . . _ -- | ||
n--m @-id .:: : | n--m @-id .:: : | ||
;. i . | ;. i . | ||
. t | . t | ||
'I i -; . . . _2_ u u_ - u_c- --- - + ----------- - - ---- - - - - - | 'I i -; . . . _2_ u u_ - u_c- --- - + ----------- - - ---- - - - - - | ||
u=3 y ~-- , !ld _ Q-giE T .-... . f ji g | u=3 y ~-- , !ld _ Q-giE T .-... . f ji g 4 ,. | ||
4 ,. | |||
Ju . | Ju . | ||
2- "E!E r:]- r : - . | 2- "E!E r:]- r : - . | ||
l;m , : , | l;m , : , | ||
.- . m: mL ; ._ : . | .- . m: mL ; ._ : . | ||
u .: , | u .: , | ||
3 ygu ,, l :.: _ | 3 ygu ,, l :.: _ | ||
:-/. : . : - . . | :-/. : . : - . . | ||
_s_=g --:n | _s_=g --:n | ||
~ | ~ | ||
, = -a | , = -a | ||
, - ~ , =_:an ' : -== | , - ~ , =_:an ' : -== | ||
n::2 | n::2 | ||
:==. -=/. m - : :===- - | :==. -=/. m - : :===- - | ||
- -+ n= :. n -.y: 7 "w | - -+ n= :. n -.y: 7 "w | ||
I f , | I f , | ||
...__._; | ...__._; | ||
| Line 836: | Line 519: | ||
s- ; - - - , n;n . unn/u .; .. | s- ; - - - , n;n . unn/u .; .. | ||
a i | a i | ||
"..**":~U~~.*[.'*C.~_.- | "..**":~U~~.*[.'*C.~_.- | ||
.e"...-~ | .e"...-~ | ||
4* :1 | 4* :1 | ||
..2-..:-.. L . . . | ..2-..:-.. L . . . | ||
. ~ . | . ~ . | ||
-~'. | -~'. | ||
d s. ....2..._., | d s. ....2..._., | ||
,.g.. .. . .. | ,.g.. .. . .. | ||
R .. | R .. | ||
o.n : 4. . -.. + | o.n : 4. . -.. + | ||
. r f.: : . . . . . :::.: . | . r f.: : . . . . . :::.: . | ||
"n-- . | "n-- . | ||
: y. . : . | : y. . : . | ||
[ '. } h 1""* {f yJ *[ i-[.In.* !- f ' ,_ .' f , ~; -. : | [ '. } h 1""* {f yJ *[ i-[.In.* !- f ' ,_ .' f , ~; -. : | ||
-. ...__, . - . _ - - . = . . . - | -. ...__, . - . _ - - . = . . . - | ||
_ _ _ _ _"_.__ _ *n-~*'' ."*C.- | _ _ _ _ _"_.__ _ *n-~*'' ."*C.- | ||
.!M""'.!'*".7.~'."7-~'* *: | .!M""'.!'*".7.~'."7-~'* *: | ||
::l. ~ ; | ::l. ~ ; | ||
. _ . _-'~~'~~*1~.J.__ | . _ . _-'~~'~~*1~.J.__ | ||
.'' I. | .'' I. | ||
r..-_._..p-._,_ - _ _ _ . . . . , | r..-_._..p-._,_ - _ _ _ . . . . , | ||
. . .'_ "~!"-~' : ' _ ... . *. - _.'."..~~.i._J.*..-~.!.:".- | . . .'_ "~!"-~' : ' _ ... . *. - _.'."..~~.i._J.*..-~.!.:".- | ||
l:: | l:: | ||
: :; | : :; | ||
: 1. : : | : 1. : : | ||
f . . . . | f . . . . | ||
r__ -.- - - - - ' - - -+---.i-i. Mi: | r__ -.- - - - - ' - - -+---.i-i. Mi: | ||
* 1"+-Id ".F--fii-i;* | * 1"+-Id ".F--fii-i;* | ||
* 7 - | * 7 - | ||
fh- . . . . . , . ..-.:.....--......a ... | fh- . . . . . , . ..-.:.....--......a ... | ||
= T.** ..: * * * . .n ** ~n..: . . . | = T.** ..: * * * . .n ** ~n..: . . . | ||
^ | ^ | ||
..~.l""".: | ..~.l""".: | ||
. ...s. . * * : : :-*: ; .~: .~G | . ...s. . * * : : :-*: ; .~: .~G | ||
;. ..p . -. . . - | ;. ..p . -. . . - | ||
.._u. ..-.: ._ : . -.=n.- : . | .._u. ..-.: ._ : . -.=n.- : . | ||
* ~ ~ * ~ * ~ ~ ~ | * ~ ~ * ~ * ~ ~ ~ | ||
.._..L_;_ . _ . . . . _ _ , . _. ..__.-. | .._..L_;_ . _ . . . . _ _ , . _. ..__.-. | ||
_ ~,.,.;,;.._..""~'~-~_, . | _ ~,.,.;,;.._..""~'~-~_, . | ||
,'.._.'^ . | ,'.._.'^ . | ||
. Q.. . | . Q.. . | ||
: t t i 1. . ..t_. .._..i. a-. ._. . . - | : t t i 1. . ..t_. .._..i. a-. ._. . . - | ||
| Line 931: | Line 564: | ||
.. . . . . . . . :; $ 33._ . Ih . ,{ | .. . . . . . . . :; $ 33._ . Ih . ,{ | ||
_...Z.Ed. Q ~ | _...Z.Ed. Q ~ | ||
] y~'".-*'. | ] y~'".-*'. | ||
~(.Q,(""" 7~- Q M | |||
~(.Q,(""" 7~- Q | |||
M | |||
I Mi . . .I. m 's , '".' P " * ' | I Mi . . .I. m 's , '".' P " * ' | ||
46 1240 | 46 1240 t | ||
, FIGURE 4.2.18-3 7 ; ; l Time Available Prior to Initiation of PCRV , | |||
t | O i i Depressurization When Forced Circulation l 4 . . .. . . . . . . . . _ . . . . _ . . - ~ ~ | ||
, FIGURE 4.2.18-3 | |||
7 ; ; l Time Available Prior to Initiation of PCRV , | |||
O i | |||
i Depressurization When Forced Circulation l | |||
4 . . .. . . . . . . . . _ . . . . _ . . - ~ ~ | |||
Is Lost From a Powered Condition at FSV 1 g . | Is Lost From a Powered Condition at FSV 1 g . | ||
1 L | 1 L 1 ! | ||
1 ! | |||
,. . . 1 .. _..1. . | ,. . . 1 .. _..1. . | ||
. . ! . . ... , , 9s,, yg, ygg7 y s ,, ._9_. ._. 7._ | . . ! . . ... , , 9s,, yg, ygg7 y s ,, ._9_. ._. 7._ | ||
| Line 974: | Line 580: | ||
on Gaearex riiin 23x u .L .!. ! | on Gaearex riiin 23x u .L .!. ! | ||
l t A_ -.I i | l t A_ -.I i | ||
.I i :. | .I i :. | ||
i & l | i & l | ||
{- l l , | {- l l , | ||
| Line 985: | Line 588: | ||
.;. . a. . ... . . .. .. ... . . . .. . . . . . _ . _ . . . . . _ - . . . .... _. __ _ _ L. . _ . . _ _.4.. . . . . . ...... . ..... .. . . _ | .;. . a. . ... . . .. .. ... . . . .. . . . . . _ . _ . . . . . _ - . . . .... _. __ _ _ L. . _ . . _ _.4.. . . . . . ...... . ..... .. . . _ | ||
i i i ! | i i i ! | ||
l 4 | l 4 l l 3_ _ _. | ||
l l | |||
3_ _ _. | |||
_7_{ , | _7_{ , | ||
r T T T T 1 , | r T T T T 1 , | ||
x N, , | x N, , | ||
I i _ w j l %~__ l i f | |||
I | |||
i _ w | |||
j l %~__ l i f | |||
. _ p_ . L. _. _. _ _ . . _ __ _ . . _:l ___ _. _ _ _.u ' | . _ p_ . L. _. _. _ _ . . _ __ _ . . _:l ___ _. _ _ _.u ' | ||
.q _ | .q _ | ||
; - | ; - | ||
r | r 1 t | ||
1 t | |||
! l i | ! l i | ||
j . | j . | ||
I | I | ||
}g.is .f... | }g.is .f... | ||
_. i | _. i | ||
-~ | -~ | ||
| Line 1,026: | Line 606: | ||
J' ~~~ ' | J' ~~~ ' | ||
-b - ~ ~ | -b - ~ ~ | ||
r -f. ~~ | r -f. ~~ | ||
b ' | b ' | ||
I I. .: | I I. .: | ||
...G ..p . | ...G ..p . | ||
1 I 1 l l 20 l .30 40. . f: 0 .6G. .70. . 0 0. . .$0. . lC M7 I | 1 I 1 l l 20 l .30 40. . f: 0 .6G. .70. . 0 0. . .$0. . lC M7 I | ||
[h . hhiM f | [h . hhiM f i _ . _ ._t}} | ||
i _ . _ ._t}} | |||
Revision as of 23:36, 1 February 2020
| ML19256A714 | |
| Person / Time | |
|---|---|
| Site: | Fort Saint Vrain  |
| Issue date: | 01/03/1979 |
| From: | Millen C PUBLIC SERVICE CO. OF COLORADO |
| To: | |
| Shared Package | |
| ML19256A710 | List: |
| References | |
| NUDOCS 7901090251 | |
| Download: ML19256A714 (8) | |
Text
{{#Wiki_filter:' BEFY)RE Tile UNITED STATES NUCLEAR REGULATORY COMMISSION In the Matter of the Facility Operating License)
)
of ) Docket No. 50-267
)
PUBLIC SERVICE COMPANY OF COLORADO ) Application for Amendment to Appendix A of Facility Operating License License No. DPR-34 0F Ti!E PUBLIC SERVICE COMPANY OF COLORADO - FT)R Tile R)RT ST. VRAIN NUCLEAR GENERATING S";'ATION This application for Amendment to Appendix A of Facility Operating License, License No. DPR-34, is submitted for NRC review and approval. Respectfully submitted, PUBLIC SERVICE COMPANY OF COLORADO
;, ,
r ,? s By 4 G y /,f t (c' C. K. Millen, Senior Vice President KELLY , STANSFIELD & 0' DONNELL Bryant O'Donnel Robert E. Thompson Public Service Company Building Denve r, Colo rado 80202 Attorneys for Applicant 7901090AS4
STNfE OF COI,0RADO )
) as.
CI'lY AND COUTIY OF DENVER) C. K. Millen, being first duly sworn, deposes and says ; That he is Senior Vice President of Operations of Public Service Company of Colorado, the Licensee herein; that he has read the foregoing Application for Amendment to Appendix A of Facility Operating License and knows the contents thereof, and that the s tatements and mat ters set forth therein ace true and correct to the best of his knowledge, information and belief.
-%)"'
. -.. . c .
C. K. Millen Subscribed and sworn to before me this s '"I day of January, 1979. Witness my hand and of ficial seal. My commission expires: . ' ' ' ' /*' . t t . g n i Notary Public
Specification LCO 4.2.18 - Primary Coolant Depressurization, Limiting Condition for Operations The reactor shall not be operated at power unless a flow path for depressurization of the primary system exists that includes the HTFA, Helium Purification Cooler, Helium Purification Dryer, Low Temperature Gas-to-Cas Exchanger, LTA, and associated valves and piping to the reactor building exhaust ducting to permit depressurization of the primary system as a function of time consistent with the basis of this LCO. Basis for Specification LCO 4.2.18 In the event that a loss of forced circulation occurs, the time available prior to starting primary coolant depressurization shall be as follows:
- 1) As a function of the time f rom reactor shutdown as given in Figure 4.2.18-1
- 2) As a function of average core outlet temperature for thermal power levels less than 25% as given in Figure 4.2.18-2
- 3) As a function of reactor thermal power equal to or greater than 25% as given in Figure 4.2.18-3.
Start of depressurization following onset of loss of circulation is initiated as a function of prior power levels, two (2) hours from full power operation, and is completed in approximately seven hours. In order to permit greater operational flexibility, it is desirable to take credit for any idditional time which may be available under less than limiting conditions.
Page 2 Analyses indicate that there are less limiting plant conditions which significantly increase the 2-hour time limit to initiate PCRV depressuriza-tion following the onset of an LOFC. The greatest increase in the 2-hour time limit is obtained when the reactor has been shutdown and maintained in a shutdown condition for a period of time prior to the occurrence of the LOFC (Figure 4.2.18-1). Figure 4.2.18-1 summarizes the results for the time avail-able to initiate depressurization following an LOFC as a function of time from reactor shutdown. These results show that the time available increases signi-ficantly with hours of reactor shutdown. This is especially true beyond 550 hours when the af terheat falls off rapidly (see FSAR Figure D.1-9) . The next most significant increase is obtained when the average core outlet temperature is less than about 1000*F at the onsc of LOFC (Figure 4.2.18-2) . The low tverage core outlet temperature can either be the result of low power operatit - (less than 25% of rated) at the onset of the LOFC, or as a result of temperature reductions after reactor scram from any power level prior to the onset of the LOFC. Figure 4.2.18-2 summarizes the results for the time available to initiate depressurization as a function of average core outlet temperature at the start of the LOFC. The figure shows that reducing average core outlet temperature has a minimal effect until temperatures talow about 1000*F are reached. . The least amount of relief in the 2-hour delay time is obtained from the case where the LOFC occurs during power operation above 25% of rated. At 25% power operation, the delay time is 2-1/2 hours decreasing to 2-hours for power operation at 70% and above (Figure 4.2.18-3). Figure 4.2.18-3 summarizes
Page 3 the analysis results ass tming the LOFC occurs during power operation above 25% of rated and there is no forced circulation following the reactor scram. An additional one-half hour is gained on the two-hour time limit at 25% power operation. There is no relief in the two-hour titae limit for power operation at or above 70% of rated. Depressurization is completed by venting the purified gas to the atmosphere.
Fr . , . . ~ . . . . . . . . .
- g:. i .. + -
- l
--. ._,a. .
; * * .: c. . t " n=;. :n a . : m *
. : : :=;. .. :~ nm:: - - 3
+ . _ _ .
- :- L._....._ ";.u- - -
. . . .. .. ._ nt' hi .
.?
. ;- . .
. iiii:
- i 'HHil - ";'
- R ' E ' ' ' ^ ^ I i5 : ** "" * !
- . . : .! *. :y:
- !:l
- {:: 2.-. ; ;
7g, nu 9
. .;.i . .. p. gn}:: g ... c.n.. ...' .... n7:::n ;_ c:r: 7, g_ -
......:f: '
.: f t _.
~******
- t :
- !! : +
_- : '1
'* *******!!?*? ., .v.
- !:: .!.. ... ..:... . . f .. .
- t: .'". _ _ _ . . . .. ::".n. . w . . _ _ . . . .._..; .n _. .a. .
1
.. nm:: -
.7 ;. .
.;. _ .
...). ;,, _ _ . . . ;;; . .
. h . . .:
-------+--+-*+: -
'ib!
N! Mi
* '" I 2-- ZU- ~
.. * .. ..n.. l *. . : ;_. . .;. u*..
- !';:. .. .._:::h ..
.."."- -:-~n;=;.mn; -;;+n------ ; :. ' -.
. :: . : .;. . . .; . ut .un:n u;u_ - - -
** ""~
. .u . .l
..... , --:;;;; - ::1:: -- - ::+; ---- ; . nt:: : :. ::
- .N ::; ; - : t:: ::f:- * * ::b: *: --+^^
't:
.."r.
t *-* -E: '"".
- : .. 7.'n : .h.: '.
l:'; , : . l.
..{.. :: ..l..
n :: .
. ; , .: rl:.. _
; ;.2m *c f ::T .. . . -. .
. . ..t.. . . . . .
- u-.. ~ ' - " - '
t------.---- _.2 _ .- --
- .2_ __
f . . . . . . . . . . fifk * *
*?r_....**.-
'"..~~r
- ---"I"..-~"--
- .:{ : n..u;.
. + . .:
- ::t:: ;;;n n
..!, : .. :.u:: ......! ::nnd. ..:nu -"j"--~~ ---
t.: : ;c - .._ . !; umlnu_ ;- *" ' - - ' f f f ... !!!! ! h !b fN!f* +
..I..
M ::
+
. . f::. .
..l..: : : . . ' ; :. . .-,::r.-** : :
..I..
- ..... .* ::; n.
'.-*'+*".4 * ..
N. :
,..... . !. :. . . . . . . . . . . { ::. . _ _::{:: . . . . . { : :. " 7n. . I . .t.::. . . . .::!. :.; - . ::n ' ..
. t ..
.' ;,g, . . . . . . . . . . . . . .. .
O .:t :
; - ::!:: - "- - - - ^ n t :'. J+ n: 7:4=.. ::!::
'- . ::!n ,_..; * .: ::
" !:.:..... ...:-*:' ..t. . '::..:; :\::;.: *
- r.. . ..t.. ..t..
.'o q
- n - i. :::. :.
.--++:
.'.: y:::g . .
. _ . . . ..... . . . . '*: . *" _ _*_*_j. u . . :*!n
. .a
.t:: 2.{c .: . n . u . . . . :ln u. .
" n!!1 ! ** ' '!" *" *n { !" * 'l"* -- -- - - - - - - - - - -
. . . . if Eih
- bIf. _ . . + ~
f* !N! E!U "..H2_'~ 2. .E_-. !!!h-
. . . . _ . . . _ ":: " - r:
n.._.=. ._ j =o u n. : : r =:= .:.=:nn:nnt.==n!..". nu _ .- . E.
. _. n.} _...1..-
n _. . t . __
= nn ;nn:n + .._ ;;.n ; .n+nn;==-- ;+--- _::n, i.;.*--*--*
M $::
..t . . _ * :: t;==: .
- 4:: .*
': q :'
,' n $ m** * ' .l l:: * ****n.**:*-* **
- ti-* * "* . P*"n = t n*n . * ** r **r-- t***1;*
n!..!n.; ..C;.**
. . . . . .::- a- ;in ^ !1;***!!!** 1'1!!!***.*i".*!*C ~!!!* ** *Crn' -~* *;.' nn .Z
-----+-n.'
z . .. _ : - - - m. unun.t-- ~ ~ -- - { ~----- ~.._..-..._...._..~....._.._.f_._.._....._. .n __ ._:. W [!, -- i t * * -
-' 2 :'
y ~4 g
; . n{;' ;=:.':n :.:*
!.. ;;.l:
= jn.4.
- C !:!.. . . . .T* :: n . ;.; . . _ _ I
.n ;*. "*:nn n:n;:*n 7rt'.;n nn.._
. . .._ t n~;* "~ t i : ; * ** :
. *~*n+7 : = r :n. r*
l 33
.- y a F-Bi.E E. i. E. .H. .: 'E.. !? ~~ '
- H C-i" H E. . i. E. . "r ~:i. .'.~" " = =:"E!?. ... . ~~
-p. : *-
. s. . . . . . _
a L -: ,q n t'::- ::* 1.. - ' '":* ;- =- "r"* '-'- .-'. .-*-": :! :-^=r ~ :*-= **-~~'"- ~ r'7' * - r".--T t --T - _* . -
. . . . .; _' ' _; . .~ 4.-~ ~ n ! ..i- t'*r~~'--i' 7 -" - ., ::
. . t. : : ;;:n n ::
N y
;; ]
(
^
~ . . ~~ . _:n ~ .
2.
~ *: T *
*_ :n
__ ; .*
. . .-_ ---.ll .! t r****! *y! ***1.
g .* nt ._.* . {3 . ".. n. .i 'l ~ *n_ ? *
; . . . . .n n, r : + - * - *
, c. ., .,
3 f
" [nd -
g C ,: x
- jn_ _
E^.__
; nn = - - q. ,
'.-7.
.:. .nn..;
.Z._ ' *Cnn i m ~ . _ . in_*
- T-*** 1_
'; n.n "=: *. : *; ;
- nn=*
+ n=:n.._nrn n
_ . ___ _ . _:.D::: - rr-.
- r"1
. .-. .n - !
,.,- [ = :a:r - : . .n= l:. = r: ... . n=:1 - ..nrr . . . - - - . . . : . . c. . .
n a = +. c- a x :
-r u-a C '3 n-
_ . . _t.u. _
. :'* b *iU!Eb.e-
. - - 2 - b';;:
- - - bb - - -bb- - - -h* - - -i'[: - - - - -. C~~" ! *'": "" ' - - .i- - - - i O a 1 , A -;------.* . + .np:.n: *::. _..=;n-- :-*n;--~;-/n n=;= =n;mnr:
- 7:. .1:. ;7.:--3
- ,:: *-- mnn--. _ _ . . . _ . . ' . _ " . _ . . . _ . _ . . _ _u-
.J ~ 3 C j n.r r -- ^ u t n. . , -
- . x u s; i
T-1. . . . _C**.; t C"l'i~"U . . I=MC ;Cn
. - _' : : 1
=. L C ** g
. . !J.
nin~~"-"* J8 -' C'_- a vm . .- . . . u._.; u _ u.u p - -+ - =r lj zq . . . _ . ' . . . . - - - - - - - - c _. p. 7
- h. A
;; ~p
;
; .2
.-..d:.._._....--:~<-~
- !i :inL!- *
' : i
'"~=C:-----
'E -- l
. .r, - -
, '. 5 .;... .
i _--. ; . . i
. . ..- ; ;.; . .
.l W C Il
># { *" u M '3'*
**'4 C j
l id * " " *.
? . ~ *. ' *! ! . ;; . J* -~~L .
_..__,'_...,_'n.l.. __ .Z.** ? ~
~~~~i
....:: 1. ~ .]
.u..-.-.=..
s
- n. a m . . E. . .- n n ..E_-.. . .. -. . _.m. :.
,; y 3 y . ,a 3 _ n !. i ..:. _.
. . . . . . . m. . _ . .n ,
3.N . ..C ~ Ei
~
.] I ;c ~~P _ "."'-
. . .N_ . . ._. ...g_
- = 7- . _. ,gg._. . _ . - - _ . f:. .f'.._ _ . . _ . . _. ._ ._
. .g-_ _._ ._ ._ . , . _ _
_3, g g 7, j ,l _ . ..
~
t
% -^*..~*
' _M i!*-r;.
._ . .. + r r: tz
. . . . . ; . .
_n
.n =: : n n_:n n : r. n.:r=n + ..nnnnann ! r n :-
- _1 .. : nu --~----.
* ---~-*
_6 t
;
-----"..*!.~.i'*~~* -
.._ . _ .-.,..... . . , _ , ..-_ .. . . . . . . . . . .. ~. ; ,
S . . r. r :: .. n n.un- --- nu = n.-- E a v , ,. , ' , . - - . . . . . _ .. . . . . . . - . . - . . - - '_ . . . :- r . . ._n: 4.,=:: _ . . _ . _ ..n. . nn n n"r ; .x amme
. . _ . . . . \ .. . .
...-..-_~;*.-*.!r..t._*..:!*n;.;."".',._-*.::F..*_*..;;__-*..~~.~~r*_';-~.~_---- .. *' _ . . - -?
'(..: : .. .. . . . . ._ _ _ _ . . ..
4"---' D . . _ din a.---4
== : =
.- IME~f ~~ .$E M~VEH~ t
. . . . _ _ _ . . _* . _ . . _ . .+ - - - . . . a.*. . - . . . . . . _ . _ _ . . .- . = * . _ _ _* . - = + - * + -
. + --
.r- :- 1
.+-.++. .
p .._;_n.___......__ : _ _ _ _ nr e.. _ 7_.. . .. . . . _ _ . . _ _ _ . .. _ . . . .
* ;_.,_.....
- z=nn . _nn =:. ._
.._=m-_. . - . . ..-
;._._._ . _ . . . _ . _ . . , _ , _
th -___ u .
.. +. . . _ . . - . . . . . _ _ . . . _ . . . . . - ..__.___.6._. s . _ . . .
...;.a._....
..,-.+-..-.
._...*..g_. . T. _ ._ _. .. . _ _ _ _ _ _ .
M
~^--T . . . . .
.:p:
* . . + . - ."-*'. . . ...
.;::
+
_ c . 9 a;:: n.u . . . . 1
- .tn ..nr
- . .nr:mr=:;.
+ - - - -
n.---- . . - - - .. -
- n -
C g ;
+
T-- r----- .;.; . .
.. : . . . .. 7 .. , .
g
- n ::::: : : ::::: : :
..j n
- -jj@ * $!+-jj-9 * - +""' M " E 7 "J "E.
, . n.n g; . n.n ;g .n_,- , .1 m --. .
. ._ ntn ::l:: ~~ - - + -- -
". . - - -- +
- u.. ; . . .
.n.-_ . . . :: n :- . :- - - .. . . . .
*A
.=~~:
- . . - :a _,
!iti! , l RE , . : :c. iiiii-+i liijimi . : g q -4n.:- 2.;iniu.._ 2 - --
j:::__
. :: .tc ..... _._. nn:
- ~ -
urn . - - - -
- n.: - - - + + --- - ~ + - +
^1 ...ntn
-:O.,
- t- 1
.:: M j u- -
- g:. :' , r-+- ::J,n. . . _ _ _ .
.:-.....1... . .. + . . . . . . _ . , +. ..f+ .
n.n +
+ - - - - -
.l y.
'. : . j : :. ::: o. .
s H:
lii!! Hill : _l!L t 1
-}.:- ~ ~--++ r ---
- r---J
. _ Hi!L
- + .
>~"-- ,
^4if :- + Hit - !!!!! E[ --iEs
, _ _ . . . . --~......
+
..g....
". j;=. . uun. . . . . . . _ . .:: n. . u . + -.=r
- {'::
- ::[::
, .:,n
- l -. . -
. _ _ a_:m- n a n. .:.
- g n. -
i!b h b!b _...
- N!N"fi - : Fi 'ih.r-ti"F** . F--i; J'
'i E : -- :ff:- - - - --:g. "-
i
. t =-- r m- n n ; .,n. .
.. ; . .
-----t. . . :. . .. . . _ . ... r
- n.n . .
. . ::a. ::.. .
- }::
+
. -t n na..;
- n. . : . - .
p' - -'-; ::t:: :M;: : ::In . ::{:R.* u n jn . ..n t::
+ -*..~
c.J :n.n j:: + + + - - --- + -._..:: n- j n . . . p._
. . . . . . . ".3. . n .
n r~ ~- M n . n-+n. _ _ _
.---- n- _-
- o. "
. :..: ; - n, . t. :. : *=r + +_ s +: ' u .. '-
..g._....
n . m_ =_ . n t :
. I!!b"_ _ .fh! hii.: inh!b f f N'lifli ~ 1 --N*EU~~4 . 7' - '--
'l&= 4 - - njn ----t -:-
22 ' r+.. E-i"--i '"7.t~Cr-
. ._O .. . _. _. f CWM2"' 24 - 1"U"CP
= -. . - - :i '. N !.t- .h l
%- v ..:.. * ::=.= r nc._..:. n;=:n. .nu.: .. . _ .n =a n ._ ;=nn l = =r :
l7
- _
r
' * ~
- u I .J _ . u t :: . . . .::t n .u. .c.. P nnn n r~n:=*-"-*=_n.n.:n=
-*---*=*r-+... ._.4_...._..,__ = t*n=_nin== f:nn*nn n----
_~ I c:. . a. t. :. :
- .---- . : m_- n. - =..=. . l._. .. .nu::=.- n
_. . ~. . . .+-...~.~_-._=.=.u.:.=._=_=.._:,u.=_... _ . . . . . .:n,==
- - - - :.. =.::......n.
u i
= In. . c
- " - 3 n=
O ~ ~ ::::L.a
- .. n nz..!.:J ut=- unt nn=t:= --' "-+-+ n :*=n=:n=nn;* nn ---- " ,n.umn :n n=rn= *.n ::./ =n:=.m. == :
M". :..
- - r re :. . _ .. :=n=_.:n
,A --
.. . _ . _ . . . . . . _ . . . . _ . . . _ _ . _ . . . . . _ . _ . 2 D1 ::. . _ . . _ .
SU"_'u.J
** j9 .
==.=...=_.:a.==..*...:
.. - . =. n.=. -. =. +-
- r.== --t-
. . . :=::
. . r =:n=. :. . . . n O x- .,u: _
- ,0 : ,J u + w :t
. . :n . :; j =c _ _ . -t=na; -
.n.1.:
=c2=u=:
- . m :.
.:= = n- . T}_~ - ::l n .-= . x- x I
3 r,a 3:2
- 3 y l5
- l. ::tE
"!."*=iifE " "':;! ele =~~@ r - " - _ .
". =7--- e == ~r
~~3. ~ .
i 3 : $Is a ua jd . . . . . . . @# : Dio-F~Il Ei!c==.E+~I ". O . _ ~ IE ~i'~ N%I - c _g--
=~.-
. . - . . . . . . . . . _ . . - : =. n. : 'u-n -
, nu a .
=- . . .
o 0 - ia.
+
.. . . ut,.m. n. ::i.t .i. :.a.i.ji-i+ d ".iii-it=r rimi!/:: t- . '.:i== _ Dii Eij
.- a "a % _ ,. . . .
. ;.J k --! m O q ;; . - + n- . . - n; n ;;g , , c;; - +lrfn . . ;_ ___. ::j x
;"
- nu ,;
+ +
- z. _ . . . . ++-:r?~,---t--- = f. = . - - :... : - -- - Q
- .. nn.a:: . .: .=- -nn : n
; ~
u..2 "s i., . n.tr.-- un - N. ...::
- ,e .
.. _ r. :nf== n. a n. m =:.- n.u . .
C 2G:j o y ilI A. t .
- - ..= ==i:'="amrn=====M-r =. . p. . .. rniiniE n n n5. = N.Q . . Enn= -
~, ue_
u,
- 1,2 ' = +
- n. _ c..p.. c .:= = : :-nnn= ==n , -- . . .n.:x == =: . -. . . _ --
n--m @-id .:: :
- . i .
. t
'I i -; . . . _2_ u u_ - u_c- --- - + ----------- - - ---- - - - - -
u=3 y ~-- , !ld _ Q-giE T .-... . f ji g 4 ,. Ju . 2- "E!E r:]- r : - . l;m , : ,
.- . m: mL ; ._ : .
u .: , 3 ygu ,, l :.: _
- -/. : . : - . .
_s_=g --:n ~
, = -a
, - ~ , =_:an ' : -==
n::2
- ==. -=/. m - : :===- -
- -+ n= :. n -.y: 7 "w
I f ,
...__._;
L A +-- ~r+- -U- ;3?-r;[[[I- - - J~r +U"-'[--[ Rn r *-- 91 ---- - - h[] e ; - . . - - C *
". ~'
, . L.,-..., [- .I.,. !C "" _] *.~ _; . C!'7~
~,,, ; ;t_ 7_ . , s- ; - - - , n;n . unn/u .; .. a i
"..**":~U~~.*[.'*C.~_.-
.e"...-~
4* :1
..2-..:-.. L . . .
. ~ .
-~'.
d s. ....2..._.,
,.g.. .. . ..
R .. o.n : 4. . -.. +
. r f.: : . . . . . :::.: .
"n-- .
- y. . : .
[ '. } h 1""* {f yJ *[ i-[.In.* !- f ' ,_ .' f , ~; -. : -. ...__, . - . _ - - . = . . . - _ _ _ _ _"_.__ _ *n-~* ."*C.-
.!M""'.!'*".7.~'."7-~'* *:
- l. ~ ;
. _ . _-'~~'~~*1~.J.__
. I.
r..-_._..p-._,_ - _ _ _ . . . . ,
. . .'_ "~!"-~' : ' _ ... . *. - _.'."..~~.i._J.*..-~.!.:".-
l::
- :;
- 1. : :
f . . . . r__ -.- - - - - ' - - -+---.i-i. Mi:
- 1"+-Id ".F--fii-i;*
- 7 -
fh- . . . . . , . ..-.:.....--......a ...
= T.** ..: * * * . .n ** ~n..: . . .
^
..~.l""".:
. ...s. . * * : : :-*: ; .~: .~G
;. ..p . -. . . -
.._u. ..-.: ._ : . -.=n.- : .
* ~ ~ * ~ * ~ ~ ~
.._..L_;_ . _ . . . . _ _ , . _. ..__.-.
_ ~,.,.;,;.._..""~'~-~_, .
,'.._.'^ .
. Q.. .
- t t i 1. . ..t_. .._..i. a-. ._. . . -
7' .
.. . . . . . . . :; $ 33._ . Ih . ,{
_...Z.Ed. Q ~
] y~'".-*'.
~(.Q,(""" 7~- Q M
I Mi . . .I. m 's , '".' P " * ' 46 1240 t
, FIGURE 4.2.18-3 7 ; ; l Time Available Prior to Initiation of PCRV ,
O i i Depressurization When Forced Circulation l 4 . . .. . . . . . . . . _ . . . . _ . . - ~ ~ Is Lost From a Powered Condition at FSV 1 g . 1 L 1 !
,. . . 1 .. _..1. .
. . ! . . ... , , 9s,, yg, ygg7 y s ,, ._9_. ._. 7._
._;.. . . ;. . . _..p. .. . .
~
11 !- .- on Gaearex riiin 23x u .L .!. ! l t A_ -.I i
.I i :.
i & l {- l l , 1 g l -[ p .
]-
j
.;. . a. . ... . . .. .. ... . . . .. . . . . . _ . _ . . . . . _ - . . . .... _. __ _ _ L. . _ . . _ _.4.. . . . . . ...... . ..... .. . . _
i i i ! l 4 l l 3_ _ _. _7_{ , r T T T T 1 , x N, , I i _ w j l %~__ l i f
. _ p_ . L. _. _. _ _ . . _ __ _ . . _:l ___ _. _ _ _.u '
.q _
; -
r 1 t
! l i
j . I
}g.is .f...
_. i
-~
r~~ J' ~~~ '
-b - ~ ~
r -f. ~~ b ' I I. .:
...G ..p .
1 I 1 l l 20 l .30 40. . f: 0 .6G. .70. . 0 0. . .$0. . lC M7 I [h . hhiM f i _ . _ ._t}}