ML20081J036
| ML20081J036 | |
| Person / Time | |
|---|---|
| Site: | North Anna  |
| Issue date: | 10/31/1983 |
| From: | Bhagat D, Dalton J NUCLEAR ENERGY SERVICES, INC. |
| To: | |
| Shared Package | |
| ML20081J028 | List: |
| References | |
| NUDOCS 8311080250 | |
| Download: ML20081J036 (39) | |
Text
- ..
NUCLEAR ENERGY SERV 1CES. INC.
2300 POUND OBJECT DROP ANALYSIS FOR NORTH ANNA POWER STATIONS UNITS 1 & 2 1
Pmpared Under NES Project 5229
- . for YtRGINIA ELECTRIC AND POWER COMPANY l
om
%ms wnmoon Premeqv
. 5229 Dilio Bhagat Oct.1983 __
APPROV ALS. _
TITLE / DEPT. $IONATURE I DATE f
_ Mgt'. Prod. Str. Des. & Anal. /8!f J
==
- 0 7 Prclect Manager i
8311090250 831028 l - PDR ADOCK 05000 --
g
,,. - - - , _ - - , - - - - , - . , , _ . - . . . . , - - - - - - - , . . - . . - , - - - . . , . - . ~ . - - . - .
RE.SULTS OF AN ACCIDENTAL SPENT FUEL ASSEMBLY DROP LOAD OF 2500 lbs.
Calculated Allowable Straight Droo en Too of Storage Cell Vajue Value Weight of Fuel Assembly (kip)
- 2.75 -:
Max'imum Drop Height (in) 59.0 --
Kinetic Energy of Drop to -
be Absorbed (irrk) 162.25 --
Maximum Strain in Storage Cell (in/in) .
0.00813 0.4851 Maximum Cell Axia) Deformation (in) . . 1.37 --
Maximum Stress in Cell (ksi) 44.65 36.00 2 (103.00)3 Maximum Transmitted Reaction Load (kips) 142.64 --
Maximum Punching Shear Stress in Liner Plate (ksi) 13.98 23.044 Maximum Local Bearing Stress on Concrete Flooi (ksi) 1.07 3.57 Inclined Droo on Too of Storage Cell Maximum External Kinetic Energy per Storage Cell (irrk) 25.78 < 162.25 --
- 1. Ultimate strain for siginless steel
- 2. The allowable stress value represents dynamic yield stress for stainless steel.
- 3. Ultimate stress for stainless steel.
- 4. Allowable punching shear stress = 1.6x0.4Fy
= 1.6x0.4x.2x30 = 23.04 ksi e
O .
) .
l :
b ~
.g
Allo'wable Calculated Value Value__ _
Straight Droo Through 'the Storage Cell -
227.0 Maximum Drop Reight (in.) ,
m Maximum Free FallImpact Velocity 34 9 .
(it/sec) --
567.5 Maximum dxternal Kinetic Energy (in. k)
Maximum Unsupported Plate Thickness That May be Perforated.by Missile 0.25 Free F all Velocity, (in.)
0.20 0.50 BRL Formula Maximum Transmitted Reaction Load 21.4 (kips) 9 .
O e
O e
4 o
O
- 4 e 9 e
9 e
G e
e e
O 9 e e 9
e g
O
.- ,. , _ ___m. .._. . . - _ , , , ._ , , - _ , _ _ , , - _ . _ _.
KD.
H' DATf- PAGE OF W rd f NORTH mr#- FdkL <
l
'NUCLKAR ENERGY SERVICES 11 R*F.
'B' M ODENTAL SPENT For,L A,55EMD.y ogop MAAin.s
=
n
~' ~
' *
- Y., TMG hMM-4 LTS PoC T-oLLowe toCc .
. ~
A FUEL. . A65E7wBLy .Ot.69 Loero
. 5febT 2-500 lb.S .
6F . . _ _ - . . . .. .
._ _ C.C 'J C LllEl D D/ S ' ' ' " _ _ . . .
y Dsb9 ewifbie wf_- . Z.2 ::-.- :--
p- _ : ' ~ -~ :._~.~ (~y :THEEE.: wlt.t.iSt ..LocA< . ... ... .._.. _ . . . . _ . .
'.~~ . . . . . _ . . . . . . .. _-_.
_ . __ ...: . .. . ..p. e-_30T _ ot_ .THG , STO C MG .c.Eus .'n-twVr+1. .-..~.. .
Ato Cc058 tNGr; HOWEVGE,,
- local BuctuwCv "h H[ STRocTU LAL. "D4TECTG4D[ 6F ndC.
F-A cc.i WILL. BE M k1 NTN fVED - _.
TbE DNGR. PLA W kilLL kW BE (r')
"nlE LE>rf- TICT H T.
PGEFoN et< D P6et Ft.coC INTE Grt19 6f-- THE
- (4KL. B6 M Mrv ffn W D.
NES 105 (2/74) ,
. W SY D AT E rkUJ- TASK-"~'
.. NUCLEAR ENERGY CERVICES INC. D. k/ ' DATE F/3'/f3 PAGE 2 OF 9 NEC DIVISION NO LT t We F0cL 4.a cr-4
- re.
ACCIDENTAL SPENT TUEL ASSDiBLY DR0p ANALYs1S . l Fuel Assembly ,
f
- The fuel assembly drop analysis has been perf ormed to determine the resulting structural
- damage to the. storage racks. The fuel assembly -
is assumed to f all from a height of . 53
above the top of this storage rack and impact the rack at a location where the critical amount pf damage will result. Three fuel drop cases are considered:
- 1. Straight drop on top of rack D 2. Subsequ ent tipping analysis
. 3. Drop i;hrough storage cell and impact at ,
storage cell base plate location .. .. . . . . . . . . ._ ..
- This analysis . conservatively neglects the '
O, -
59" energy losses in the local deformation of the -
d .
spent fuel assembly which results in a more -- * --
- - d -
conservative analy,s_is,of the damage __done to the storage cells. I
\
__ ._.... ..._.__.._.8 Y
- t.
a.
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+ .
SPEAfi" fufL STV. RASE VRACK i -!
i i
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, i .
M"; l : >
4 i i i 4
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8 NES 106 (2/74) .
, y NUCLEAR ENERGY SERVICES INC. '#'
DATE OF S CHKD. PAGE A, NES DIVISION ,
Nortrw we/A Fi/EL. 4. ty .
REF.
CASE #1 STRAIGHT DROP ON TOP OF RACK ,
Assuming uniform storage cell compression, the external kinetic energy developed in the f all = (f all height) x (weight of fuel assembly).*
Neglecting any buoyant or drag f orces on the f alling assembly -
Drop Beight - S'J
Tuel Assembly Weight = 1*l%*s500 r 2+5bFI*M FMN3M$
ChuJ Fe b n o 7. TM E W*,
External Kinetic Energy = W L 2s k 'm The maximum reac, tion loads are generated when the fuel . assembly i= pacts a AACN at the. intersection of the 5TSMdiell, (stiff est region of TdE ' N/CN ). The fuel assembly is assumed to impact en area equivalent to that of a storage cell, trans=1 sting and absorbing the kinetic energy generated during the f all. During impact, the lead-in guides will collapse absorbing some percentage of the external lanetic energy. The storage cells are extremely rigid because of their configuration and theref ore is c'onservatively assumed to transmit the reaction loads .into the yielding c( TL.L. . base plate.
. ' ~
-Conservatively neglect the energy losses due to the local Q
~
def ormation of the flare at the top of the cell. The local. deformation-vill reduce the damage to the cell; therefore, there will be less damage "
to the liner plate hnd reinforced ' concrete flo'er,u'nder' the stofage cell'.
~
LOAD TROM IMPACT ON THE CE44 l
I Assume axial compression over one storage area. Find the force by setting the internal energy absorbed equal to the external -
. energy of the f alling fuel assembly.
External Kinetic Energy of Tuel Assembly = 162.15 K in Internal Strain Energy of Storage Cell (at 20% stress increase) $d.
Ref erence " Final structural design of a fuel storage well crash pad D $ c.
f or the LACBWR Nuclear Power Plant", page A -tg .
1 '
Ei = 116.9 g 1. 20 hp 1.2 '
where xe = strain in storage cell A. = cross-sectional area of cell
= O S rI y
- v o.c.S = 3,.19 s Q-L = Length of cell N = Number of cells = 1.0 l .
NdS 105 (2/74) ,
at ENERGY SERVICES INC. eno LOAD OF 2500 25.
OlVISION -
C uD. oAn -
4 ck.! ,
Ne cti ANue. NCL
. . I. -
REF.
Ei = Ex - 1/ -
' . 4.
- j*.
- E* fi. 2. l . a- s .162.57 -
- ^ .I" lif.S A (. k
~_ -
0.oo2115 .
l'4 0X 14 di f XK1 X l Calculate % Ultimate Strain ' '
% fu!= b Ix 100 = O 00212.5 x too
~
= l62
.Cu.I o.485 -
P.ax . Deformation of the cell = 8x ix = ExL = 0. 00 212.E x i < 2 : .
- 1. 5? in P.zx Stress in':he cell C 0. 2 G=//h.?Cx.2 = //h. ?(o .002s n *) = M 65 KSI
, Using~.w t!yna=ic yield -stress for stainless-steel = 1.20% of yield -
f.
v-w- trans=irted 4 2 x .3creactien;1oad " = 3G " (.3c + cs) -
- ...T_.._..--- . 1..;- . .
Sg
.. = p J4.?__ 14 2 .4 4 K .- ,.. ".. . .~- - ." .."_Z- ... ' . . ~ ' . .
' ' ~
. . . ~ . .
- N -. .m _
e S
- . f t
. . fi l l
. - I
[
r l . . .
t NES 1C5 (204) .
p--,. , ,.--r- g,. ,- , - - w , . , .-,,.-,--p----,_, , , - _ ,___--_,.,,--..,-.,.--,,--.,,,,n --
,-- ,-.v. , , . - ,
. . . . -. .~-
. E NUCLEAR ENERGY SERVICES 1NC.- ,
KD. ' DATE PAGE OF NES DIVISION gm g gu p.g f.4g; i ,'
J CASE $2 TUEL ASSEMBLY DROP AND SUBSEOUENT TIPPING
. Af ter a fuel asse=bly impacts the rack, it vill tip over and f all onto several adjacent cells. Conservatively assume that the fuel assembly vill f all diagonally impacting the minimu= number of cells.
Length of. fuel asse=bly = 14 0 ' -
's Nu=ber of cells on diagonal i t4 r- l '*lo.gs 15 = 15 15 ,/ ~
Assume IF cells max. are impacted ~~ / .
~ ' ~ ~ ~ ' ~~~
therefore n/is of fuel asse=bly 15 @ .c ell impacts the .
s .. '
6' E.E. =' . ?'..
,i.p
$O 0.1p2 j
'5. * *'S' E'
~~ '
Since the kinetic energy per cell
~
ES."rf :is less than the "
kinetic.gnergy generated in fh? straiglit 'dr'op' .4 O. 2 7
, the
' structural damage ' vill be less severe than the ' fuel asse=bly drop.
See Case fl.
CASE #3 STRAIGHT DROP THROUGH A STORAGE CELL AND IMPACT A STORAGE CELL BASE PLATE
. The fuel asse=bly is assumed to f all f rom a height 4'.9 feet above the storage rack, enter into a single storage location and continue down through the storage cell i=pactinE the storage cell base plate. The analysis conservatively neglects any drag or buoyant forces acting on the asse=bly.
Maximum kinetic energy at impact . 2 E (168+@ - svt.g ka
~\/g e Maximum impact velocity = (2 6 h' # * [2 # N7.2 y 39,3 g The fuel assembly is assumed to act as a missile striking the n stainless steel base plate. The thickness of plate that a missile, L] ,
represented by th.e fuel, assembly, can just perforate is calculated using the Ba.111stic Research 1.aboratory (B.R.L.) equation giv'en in reference D 2. -
NES 105 (2nd) '.
CNCnu' ' ' * ' ' ' ' ~ * * *
- PAb t vr.
.jg.NUU W M ~ CHKD. DAl t '
F3 NES DIVISION p eg rk NNA FOFL 8 AC4 5 REF.
~
I
.s}2/3 2 -
- T= .
t J 672D Where - M = Mass of the missile z W.64 z.z n.
T = Thickness just perforated (in.)
Vs= Striking velocity ;,, 34 9 b kid-D = Dia:neter of missile Changing area.into equivalent diameter circle E.ept*,
s
, 3,g Thickness = 7 = / I H 4
- M'E' : 0 1.c" .
6925.$.5Yr .- . .
- Reco::::nended thickness to - -
Prevent Tenetration = 1.257 - D.".9 .
~ . . . .
(,,.ow CL:,?SIDN *__
DE b G. Ar6SGN 6 W 101. MD7 MN%
"f,-
% ys" g.x.c. 8An PLFFF - __, . ,
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' 4E5-105 (2/74) .
- CHKD. DATE m i.o r Y op 9 NUCLEAR ENERGY CERylCES NOK" 43@ PtKL RAtt.t REF.
14A%tt4\)ti "RE ACTION ' t.D AD G E N E R,hT E.D BY "T M E.
"THE .
p QE t_ ASSEMbbT lM?ACT WILL. bE ES"TtMATED C3Y C.At t ut A T t N cn THE CoLLAvsE. t.o A:> FoR. A -
rec. t Av4 Cms.)LAf 'PL AT G. 5\MPLY S\R Pod"TED kT ALL.
Foo E.DCmE.%.
% . 3 0 4 \ 2. :. 3 (m, k S 1 -
% .S :'
( {cr. Rowet , p 337, .kc It) . -
c=- ,4.s4gc i .. ,,
g, wg bh
- .K:- .;
% lo n2T"
, u CL~ to rt,25' .
3 :- o %++ h ,otM9 2= o 42.'
1 b d u
%%o5 W- . 2141 iCp .
4 1.
"Tv.E RE o cito.J Leno oF 7I 42.* C,CWER C CD N T. % THE MbEMGLY "IH CO d' M IME CELL. A u p \MPACT FML 'DEc@
CN To T6E IAsE. PuTC- 15 l o W F E. W N "' HUM
- TEM 5NTTTEp RE'Ac rio9 L.o4D stJ CASE %-l . ~ff CAN 6E coac t uoc.p THAT F ut L nov u c*a. \ S- 'rss stet $s. um 4\.
J -
l NES 105 (2/74) -
.. . . . . ... ..,1 NUCLEAR ENERGY SERVICES INC. Kp' (p f,,;) q At CHKD. DATE PAGE p- OF NES DIVISION kN et/,
No 6Di Ft)G. M ccI s
-)
a
. arr.
THE MAX I/-WM CTREcr S/J ME POS: F200n /.S C4
- C UL A TED US/N6 7~- 'E Mast /HU/1 L cab /~RC/-f CASE W '
EEAR/NS. STRE55 C/J C6//C/PE76 .
e-
.$=2x0,BSkD.7D3:fi (AC/ .%'s- 77 p p,y c ZEC /0./fo )
A' = rr.b', tr(+ + 1s )* = 132.~.7 3h i g
- 4
+ W c L 4tWEE i ,
,/, ,
~~ =
/~
I& 2 :( 4 , ). p t:) . '* l-1 i .%'.
.~. . \. \ . f . .
"*'a I ?, 0 * .;: p.
. ...g..s e .4., :
. '- l* J.: ~_.
'2/...
~
i , Q_ T -
.h ;yD.EI%0.Vx3 k5I - - . - -
~' ~ ' I '~ # ~~ - - S' ' ~ -- ---
w- s 3
- 3. E F 7 l.b v.' K.!! ..'_. ~....
. . - ' . . .~ ~?. '.~.'-
V . _ . . .. . . _ .
y , 3 A cc /DEu.rAL DROP of THE FUEL A 5 E 2 21.Y 6/J
~
- ra: FUEL .~7DRA6E EACM W/4.4 CJ :/Zi ri'E F0/2 DW/NG i
A_' %ERE W/L:. EE L 0C/.* D E F5 E 1 9; 7 ' /J h 7 aT HE DP GF THi 79R46f c~ Ell S TH/YCU6M loc 44 l 2 lick.' /N6 /'/.'h CR U: W/N6 N'S wet /ER 7E .
l '
5,~~A '): TURhL l/J 7"f6h!7f CF ??E )*nik WIL.L l SE MA/N74/MED.
- f. 7--E 1///ER ?J47E W/44 Np7 EE PERhknTED NJb THE" LEAK T/6W7 /NTE62/rf CF THE Poot FLOCR .
W/L t BE M/JI.174/MEb.
A f^
b . .
i l . .
' NES 105 (2/74) .
,.*
- NUCLEAR ENERGY SERVICES INC. CHKD. DATE 9 OF 9 PAGE NES DIVISION g g.Th M fur RAC#J
. REF.
i i
(
References:
D.1 Nuclear Energy Services Inc. : " Final Structural Design of.a Pu el Storage Well Crash Pad f or LACBWR Nuclear Power Plant.
Document NES BlA0426 Rev. 1 March 31, 1976 D.2 Linderman R.B. , Rotz, J.V. and Yeh G.C.K. ; " Design of Structures for Missile Impact", Bechtel Power Corporation, BC-TOP-9A, Rev. 2, September, 1974.
! D.3 Wood, R.H. , " Plastic and Ilastic Design of Slabs and Plates,'" ,,_,,_, , , , ,
the Ronald Press Company, h7, NY.
h D.4 Raymond J. Roark & Warren C. Young, " Formulas for Stress & ,
F Strain - Tifth edition, McGrau Eill Book. Company .1975. -,,, ,
? ... . -
1 ,
l
/~\
v -
NES 105 (2/74) .
- -. - . - - - - . - .,a . , , ,
s Question B.4:
Provide a more detailed discussion of the assumptions and methodology used to calculate the decay heat loads for normal refueling and emergency fuel core offload at North Anna.
Answer:
The assumptions and methodology used in calculating the decay heat loads are listed in our report entitled "A Summary of Information In Support of Increasing the Spent Fuel Storage Capacity of North Anna Unit Nos. 1 and 2", which was attached to our letter of August 20, 1982 (Serial No. 450). In order to expand upon the information contained in this report, attached to this response is a copy of the decay heat calculations.
'l I
9 I-
STONE C QEBSTER ENGINEERING CORPOR ATION
.I ,
'* CALCULATION TITLE PAGE
' ' ' * 'SEE INSTRUCTIONS ON REVERSE SIDE w, w.. ,, PAGE 1 OF A5
- r;LIENT & PROJECT VEPCO NORTH AMMA O A CATEGORY (d 7
C ALCULATION TITLE (Indicative of the Objective):
$ I - NUCLE SArEnARRELATEo FUEL POOL DECAY HEAT LOAD On Om O OTHER C ALCUL ATION IDENTIFIC ATION NUMBER OPTIO N A L Omom j CURRENT WORK PACK AGE NO.
DIVISION & GROUP CALC.NO. TASK CODE J* O' OR W'O' NO apw. is 0 0 0 0 9. NA O.SD $1 139A9.AG~l J3929.2G REV.NO. SUPERSEDES CONFIRM ATION
- R EQ UIRED M
- APP ROVALS - SIGN ATUR E L DATE OR NEW
- C ALC. NO NDEPENDENT C ALC NO. O R R EV. N O. YES NO PREPA RER (S)/D ATE (S) REVIEWER (S)/DATE(S) IREVIEWER(S)/D ATE (S) fhn &. fh kf4lkg g S ton $ttn1 d
.opzin. rhmz sprtez ,
(
DISTRIBUTION
- I COPY I
i 8
l NAME L LOC ATION l SENT l N AME & LOC ATION l COPY SENT GROUP i i M GROUP i M Ii I I I /Y l RECORoS uGT.
FILES (OR FIRE V.5(W l/ FILE l l
l FILE IF NONE) y# ,$7[Mf(( l fy I l P LI Af< o s I IV l l l
5 %t no l
ll l
l I
l I
l I I I
I I
, CALCULATION
SUMMARY
- J.O./U.S./CALCULifl02
- * * * * ' ' " 59 ' " ' * * * " ' "REVIS
. N FASE t A 0* .t 5
, ' %en 13929.26-1 ''"*"**""
. AlEat / Prod ser Y E PCO NORTH A NNA
"*'**"'" F UEL POO L DECAY HEAT LOAD 00JECTIVE OF CALCULAfl0N
- A$45 CodCudalk. f/s Sf d TuelPet$ WG W b a @) cm staRd du & Adte $ww Vyw l dfaded is Ay end<k I.
So hq"A 2Li-25 f Yb 6 Oc24Ge GubrN.
CALCULATlen utTM00/ ASSUMPTIONS Catfges 5 & 4'.
N.
SOURCES OF G ATA / touaTIONS h $
\
l I
l C 0m CLu s10m s A same y N gho)be** b l ( REVIEWER (S) COM WE NTS PR ARER DATl 6 EE GDW OAYE #
/
RULE wtR / C5G s . %NER 6ldif'L 9 ATE
- INDEPENDENT REVIEWER
._fG__ & F iifIfL
CA,LCULATION SHEET *J*o./a.o./
cALcuLAfew to s.s ys si o.1 Paet l
15929.2,6 -l O of T A5 [
i pas,passa / o ATE L, sremi:>el 5}t218* Wa viewge/cuscase /o&TEd . L k ~r/2 tuo&sp f Y/f % LAa.SM motut arviewsa/cate /8.L
\
'$EL F POOL BECAY HEAT LOAD
(
TABLE OF COMTEUT S ._
PAG E
- l. R E FE RE NCES 5 l
- 2. A SSUMPTIONS AND GIVEN COND1Tl 0US 9
- 7. CASE 4 14- IS 6 CASE 5 1 6 - 17
(- CASE G .I B .20 9.
- 10. Th8UL ATION OF CASES Ll GRAPH AN D A PPENDIX GRAPn Vs Tome. A2 PlPo APPENDit I c2 3 -A5 N.
CALCULATION SHEET d.v./co./ cALcuLATara to, r,.t visi sc saer
. " ascio si l592.9. 2.6 - l O 3 T Mf Perpanga/cAft viewan / cnt L. ssurk slesl s1 E % C t . 4 Acu n / natesk/s.2 iWn tremoeur naviewta/ PAT
'""' FU E L P00 L DECAY HEA T LO Ab
/.
- f. REFE RENCES :
- 1. Ve.pw L ette2. N5t - So7- co7 op Apdl 2.8, (982 2 MRC Bronch Tec.hniced. Positon ASS 9 -2 hvA -7/gl
- 3. FSAR sec% w S.1. 5
- 4. FS4 R Sec%ow 4.1. I Cote MecA. Desyx Pa.romerets,
- 5. Cale. 11115 -ES - 12 9 - 0 ff-2C-7S 6 Cale I I215- Es - lH- c s -2 4 - 76 7 Calc.. IIJ IS A7 Wo 313 s 5%et Pnl V9 +1ecZ I O 76 Temf.
I I
e 3
\.
1 f
CALCULATION SHEET ,,,,,;,c, , ,3,m,,,3 co, ,,,,,,,, ,,,, j
., .so . > lM14,16-I O 4 'I M l' pmEPARER/DATE ER / CNECRER / D ATE INDEPENDENT REVIEWER /DATE l '
- t. . s r swA d s In l t1 REhvig f &..;2 L ib f/11 Sd~~ G 2LL 37)'""k.2. \
FUEL POOL DECAY HEAT LOAD
(
L A ssumPflons a.nd G*ven Conclitions '.
- l. //3 Co2.e. pC2. Ee aC%2. Q(dced $nnua.(fy fRef I)
- 2. Refa eting cy N. A. Units .i5 45 da.ys 0; peak (R)l)
- 3. 1748 Stom9e locczTc*ons of -Nigh .DC.Hsity Spe>t.C sit 8l Ectshs. (Ref I)
- 4. 15 7 fuet assemdWe.s jea case. (Pg 9) 5, Mewa Reactos rouez is 2 90 o M W f North Anna and 254s for surry. (eef i)
- b. IEO his afe2 shutdounu .au Fu.el js a,ssamed
( 'to moved Autantanecaly to %. speur helP2 (Ref-t)
- 7. For full Cote Diseka' ige %e. % Stoe.L h moved 2eacTot. Cote 'to 'ths %l Too? OT f tom 1%
CL rate 20rnix f et cMembly, sTeviG'ug iso Lu etp2 shardzae and ism + ysdep fu up
- 8. Urezn.imn . Decay 41e at is based on Ref .'l and.
9raphec1 on l=a.ge at5 f1his CQJe .
(tiote.:h g19% is cofied f 0m Re}7.)
(
STONE & WE85ThH kNuihteniNu vvMrumAs svm CALCULATION SHEET ,,,,,,,,,,,,,,,,,mo, ,,,,,,,, ,,,,
.mw- - 169 14. % I O I4 4f CMEC thDEPENDENT PitEPAR ER /D Af t
- t. w,sa snna a&vAitER/o WKER/S
. . dv/ra TE a o .REvitWER ' ' ' " " " '
/' DATA.u Ar
"*'* ' NU EL P0bL DECAY HE AT LDAD
(
.3 , Methe>d ar.d 4hroach Frorn d.1amt cJn:tflls l'a 2rs
- time.
Ref 5 f G En:>m g2afA find $1e. Excay Powe2 f 2%tEbte Cases y'verz, i n y I.
Detetrru'ne the dota,l Decag. NeR Q m MotO lQ -
Yt a4 6 C m eo.
Fot Rgi.ow I T u.e.E. ( o w o p 4 ) p o p . a %
fow64 P'Po od rnal.fiotu cc$.e q
'Eiv Yo ofrtaEm.o Te Utot f
(, Il3 cae. .
(pt.P Po = Deeog Powe4 a-s a., to$5>v
%,e.totJg Powet . evj 2.) .
% k g @ je~AbscoluoW (ot. u#1 Aozw. -
W n a.a.cL Q 4 u) la Fron1Ge9 7; 4gjg Metu.fk = A900 MH x 3.4117 ww 4 Pf Po p
3.412,7 a cotivenO>1 fs.02, IunlC = 3,1l27;h PlPa - dk.enU+ed alwre.
l.
CALCULATION SHEET "*'
J.$.'.C.
/ J / C ALCULC.fl0 4 LO. LtvlSl02 P!. S t a...- ib 9 2.4. 2J ,-r o 6 # -RT L
$$$9.). S ' Itl 8'L h$$$$$ f)YhA hSh.$$hy//L " ' " ' " " *
( CASE I 41 T4SLE I. MEAT DECA _Y - NORTH A M N A_
!/3 cote = 5.2 a,53 na.bcAdis.
LLni(,*I PlPo M6tu.lh $va.ntity ofLGca.thu!
I5 O In+ 4Td Y3 Cme (3pu p-)4.43xio' uc y O.oco37 36G SA -
'l3 Cat 6[3 P 'f Y 4lW 0.000035 0 84 SL x 10 ' 54c-I/3 Cote (3f% 150 % 4Tdmp 0.45 33 2 fess )= G.75x IOkt. 0 000045 h W2e [3y) ISO + 45 days +3pm) 0,00003 Y
= 9.fo no 7 0.33 5A sstA~a L. 5. A 8 .t C 9
( 0 . 0 0 0 5 3 (/
lim'l
- 2
- 0. 00Io A 9 10.I 6 5R 1/Scote (3pu ) 150% = 5'YL10%
llb Cote '3gewa) =150%
3.21 x to+ lp1 .tge,, 0.000095 0,94 32 1/3 Co't e f3gi ) 150la4,3t, + 2pg to ' O.000049 0.48 53 f3crne f3 yea 2) 150 L -1 sy.or, 0 55 52 u - 7.51 Mo' O.000035 llscoae.{3p)Isok + 4,pam 0.00DC30 0.30 5.t
- 1.27x10hte. _
iR.35 l
SubH'ta.1 0.001.2 s e R GI 17,63 4 70
\ Total O.00177.t l
ele. tak fe Region 1.
- ***"'"'"***'"'*** r otvision grest CALCULATION SHEET J.o./J.o. / c;.Lcutat:4a r.o.
- ,.....- I S9 2.4 . gG - t _O ' .! 7 4 -75 paspanse/ cars
' L. s w a s Inti s t. r sekver 4m ra/cascass/Lo .6d9- 7s imdo eai* caTaeony/
kosmi coot rHa Paviser#/caT class susaacT/ tif de FUEL POOL DECAY H EAT LOAD
< CQJA !. W Twn Ref I ' Su.zy Porsen Rob'ng N .
951% MH.
M diuAasfng Ao lM & QMyiAAko '
3 A5 h 12 ylls 7 = 0.9 g o _
kn a f uen # >ne.
f,am j Ws Cms-1
.ska. Ae Table I is Jased aw h ca2e--
A y *e w ps Tate E is To 8e wdi .hd ao n
- x 3.4/27 4 0.79 K 5
@ Motu.lh2 - 25% x PlP TABLE _li. +1E AT DE CAY .5URRY
('
?,?* MON"' kl 9'anTdy
.sunRY s rAno/J y / sci 21%
0.79 602e; e?ars= I.01 IA4 G.3lx nohec. 0.0000 49
=
0 . 7 9 e m e '* 3){ech 0.000035 0,7% IM u 3.4 6 x I 0 7sec 0.79coze'- 4 'years l.26 =
x to
- O.00003 0 0. 6 A IA4 0.77 cace.) Egear.s "1.s7xto* O.oom2 7 C. 56 I24 TOTciL 0 00014I A. 9 I 496 N. summ a.m :
Total Het0~ = l7 53 + A.9I = D0.44 Metylht Tofal lotifiruc 470 + 4 96 = 96G sho ,
.o"./c.c./ c Lc;LATasJ to. LEvisiom Pr.E CALCULATlON SHEET J O 2mr ax o .,
l39 19.26- DATE INpEPpMDENT 6m2 s L REviLt ER/DATE rh et
- u. maet elut\w lRW1
- dEPAR ER / D ATE WER / CN&ECKER rhir.t 04 CATESQRy / CODE CL ASS 8
d
{, itJgJECT/ FU TITLE EL POOL DE( AY HEAT LO AD .
- s. c a s t 2. _
E Ae ju2ce ing a&Bm/ddo
&d4 b b &lan.e as 2 Cm I.
( .
AddiHonal' KA ye &c4C'aus
., '. 1748 - % 6 = 722 sc%.
t
's i T
l I
I
\
e i
t
n g vis t o.1 P.is t CALCULATION SHEET ".o*./c.u./
4 c ALc2LAf tom to. 96S
' 13929,26 -I o
. am.. . ,
', "[$'h hel 5ll2/82. HEY 55 r/M/'.1 h5"b'$$"$/Mlf.2
" ^ " * " ' ' "
""'"'" FUEL PO0L DEC AY HEAT LOAD CA E 2. (c.c24t.)
NORT H AMNA UNYlS i$2 PJ . A " l TA btE 5 - HE AT DE C AY Quont.
g.oeari w e(-
untT
- I P/Po HStulh2 O.000 534 1 528 .207 subrotal f.7zom Table I(uu/1]
I{bc,01e.(5ft ofar) 150 M + 45 days 0,00003o 0.50 S.'L 1,3 0 x 10 6 st:,,
. + qyea.ts =
150 h &Sidq 5.2.
ll3 Co?e(3f.) asp xto sec 0.000027
+161 0.27 ll3 cate(sy) 150h + 45dag .
O 0,0000.2b O.% 52
+ Gy = I. 9tl X 10 sec.
ISOk4'fr Q o.oooous 0.A4 52 ll3 cote.(3 +7 g)7+w - A.25xto sc f
150 vt + 45 d ll3 Cote (Sp+)8 = T.57x 2c., 0 000 ons 0.1 % 52 31 150 fu + 95 dcar 0,%3 .53 l/3 c,oze (3g1]Sp = S.8Fx 10,acc. 0.0000232.
I 150At.445dp O.00002.3 0.22s JA 13 co4 'Sp+)10 p = 3.2osto gc
'/3 coa (sy+)ll yiso L + 9s690e. 0 000r>1L 0 <2 I9 5A
= 5.51x l - + , . . . . -
TOTAL UNIT
- I ! .67" : 33A 72,6 626
(
I
CALCULATION SHEET .0./J.C./
J C ALCULATIC44 ' 4. R E yl8103 PASE 139 24. 2G ~ t O lO 4 2S
. as;osi .
.", ""',k>dd LS 5//2/F). h$'h$
r/2y'/f2 [E"E b.,b I-/M//4
~~"'
PbE.L Pb0L DECA Y HERT LDA D
- CASE 2 { Cont)
TABLE.5 N.W.* L.
Qac.rrtibf UNIT *1 PlP. MotuIh' gloe6/w suet 6tkl fwmTableI O.00/238 I A .24 2 61 ll3 co2e(3p) 150R:t + 5fl 0.0 0D03.15 52
.c l.58 x IO
- sec. O. A 7
//3 co2k3gt) =/504+ 69 1.90 x id" Sec. 0.0000 6 0.Rb 32 7
If3 core (3p.) =I50 41 +A.2Ixto[su.. 0.0000245 0.A4 5.2.
( //3 Core [3<ez).,ISO 4. + 8 p6 0.235 M 2,53 x fo 0.o ooo A3s lls cut.a. (3f) t5o A,gykx+go 9g ec, s 0.0000233 0.23 SA I[5 co2e (3f)=150fut 3. % x 10 #Ave.,110fs o. C O C O A 2,5 0,221 ,
5A l/S cote (3p) 150b 3,47 x 4 10lI8 pc, 40000A/8 0,2,l 6 53 TOTA L UNIT
- 2 0.001407 /5 91 626 Su rntr> 0 ty_
Total NBru.l}1n f Unit s
- I h 2-ri. un : 7.2 6 + 13. 91 = DI.17 MBbwlk
'"~
.Su;i.m = D.9l
" Tota / All .06 Mst,qh Total loab = 626 + G2 6 + 496 = 1748
STONE & WEBSTER ENGINEERING CCRPCR ATtON m,,
u m,,,
CA,LCULATION SHEET ,,,, , ,, , , , ,, ,, my , , , o, ll " M
' 13 92q. 2(, - I O
. < wa s, 5llLl82 Y$. 5 C h Ylf G $ " $ . b" h v l f *-
~ ""$t$Nhe2 L.
' " ~ '
FUEL POOL DE.C AY HEAT LDAD G. CASE S ,
,is Same a.6 Case I .4xetp falT Q a, f.dt' eose diseAcoge. . (assne gn up.1).
w eef I p a futt eme acs e,
& fuet ,4sto 6e kamp Ao Iw pod as a. tall of Domin pr amm b&,
ISO % te> ,.60uttdosaw.
Stalib.%g POOL T R. A NS FE.R OF OME FULL C. ORE TO THE Tim e -to m oy e. Fue.L i.nTo Pool: '
( @) (l cote.) (157 assemblie6[me)(go minure3 c2 ssem6L <t
= 3/40 min ute s = 182foo sce
= EA.53 A% = 4.18 deugo .
%.os @ Eb a.
twdt f a. .consez2k2.tive.
e m p .0 % At A peteme.hmwd azta Atu, %t Rt aZ~ a scZe~., &
ao minus% is gEven, per aisernhQ.
% TJeu2y Heat hf a- @ wie dhdwy p a -
pch(P.9~1, .tt3. u % epz.s '
-( @Aapd: lFjp,
+ (PlP.
@ Mm.pa = 2 900 g Mu? (PlPo SR2- EJ *uthR % pp A3.
- '= _
- "*****"'"'"""'"""***'" Ft.G E LEVist03 CALCULATION SHEET J:0./45./ CLLCULiTI.J kW.
O IL 6 M IBq 29. M ,~l
- d iii INDEPENDENT REVIE ER/CATE REYlEWER / CME ATE
, 5-h ylft 95 0. YCKER/ Tbfkk W LZ'
.. PiEPAR ER / O ATE
'. L. Stem h el Sll2 l 72- " "" ' "
""''# LOAD FUEL POOL DECAY HEAT CASE 3 (Cod)
~
TABLE Y - +1f AT DECAY N. ANNA Motu. $1 UNIT
- I 'P [Po m 4 Lo T~.om Case I pcup 6 5.28 :(09 .
gago% 0.000534 -
LLnih"A.
) 150 fun a ox 94 0)
I fun + p.o 602e min (3 m'y =
/22/10%. 0,0009L LD
& G, 6.1 15 7
(* o.0 0 0 8 5 (3) 0.00 A 69 ll6 coze (3gh) I50 lvv> + lfi 0.000095 0,94 SA
= 3.21 x 10 'sh.-
ll3 69ze {3p)=150 m + 2.y>c., 0.000049 0.48 59.
(o . 3 6 x l o ' s e
- 0. 00 A 5'54 #8.0V Abi Suhtobtf o.003368 53,32 470 Total ,
Mete .'
i n t & (I) ,[2.) ,[3 ) Coua4l.od TO Eefh I, 2, 5
(
CAL'C,ULATION SHEET .3./J.O./
J C ALCULATl0% CO. LEVISt02 PAGE
,,c,a, (3929 26-I O l.s sd inorPructuT pasPans m / o ATE Ga%6 /bCugCKt shD ATE shk1 k h QQAWn naviewan vie w tR / ca btf f
. L w mhel susJECT/ TITLE I CATEtonY / Coot CL Ass FUEL POOL DECAY HEAT LOAD Cn.se 5 (cout)
Total -He d fez,linlis Ih A N orth Anna. l su.m m asy. 5.2 2 + 2 8.0 4 -
33 32 matwlk
.Sunzu 2 91 O
Total -Hect 5 6.73 MBts/M Total loca. icons 470 + 4 % = 96 6 ass 6, nog . H6tu.[b= Mow @
I % cota Eteot .
.b a s e. T m f L e. ofo. cme =Q.D
(
CALCULATION SHEET J.s)./U
".C./CALCULATlad G@. Levi 8 t t,Q P A ".E a ia,ot,-
13 92 9, St;- O f4et2
- nav auct Pruote:T arviewta/0 ATE san /CMECuta /D ATEW0.0Ch -% 4~ S/'V/4 PatPAnan /o Af t SlRlM
. L. [AC *MbeA #
GiSi f)Yl$2-04 CATtt0RY/ CODE CL ASS SUSJECT/ TITLE #
FUEL PDC L DECAY HEAT LOAD
{
CA.S E 4 _
- 7) -
.gan - caa o acer for ..
~
ha full uns d4sQes.
,see C e e .5 a26uonpT2m ami on di.S Gb hkL d6-
'b~Cl ? ??2 $72 W $ O % .
TA BLE y7_ HEAT DEC4Y - NORTH A NNA *l l
Queaf. af-UN1T *t Pf Po NEu[hr g e, ; f o,,3
.Same ao cm e 2.
(
See Table I!i , pg 9 .
Ta t o.L u. nit *I o.00073s2. 7. 2(o G26 0
f
- CALCULATION SHEET ".G./u J O. / C A LCULI.710
- .5 KO.L E vi8103 PA1E
'do,d, l1929.2l>-1 0 l542C
$ i' $ $!b '" ' s/s V)t2. $$'$'&'5"Sl2k/f.;L
. '"Es'5' p,d 5/12./A2 " "' " "
{ '"***' * h D E. L POOL DE. CAY HE AT LOAD W 4 [M-] TABLE Vil NOeTH ANNA #2 Qu s2*.
yg{ *x r' Po MS%lla. toc.ecn*m&
?
I $d Wie-(3 ) .= 150 bhb See Tablef 7.28's10%. O.00269 A 6.6% 13 7 V+ .20 m.m/ y 150is + 1#.
ll3 6ne. [3p) .:
3 2; x to,$se
, . 0.000095 0.94 3L ll3 cose[ap) IsCkx+10
= 6.SG *'lf 7 J<c. o.oooo 49 0.48 SR
- '{bh '[51 g c,$ea 0.000055 0.35 5 'A
(. ll3 cotehp)=ISOL +Hf 1,2 7 x IO'ste 0000030 0 *3O SA lls cme (5p) =1s0h I55xto% + suh, d 0000005 0.17 SL
//3 cae (37.) /sox 4108
= t,70 + .dec 6% 0.000026 0.ps 5x
//3 Cozg(34) ISOM + 7 ya 0 0000245 0.24 59.
5=.721xIOS dc 0 ' 0,2 b 5A.
,. 5g98 0 00002.58 Il3cou(3p)=150 g.syAh g nott 9(e e. 00000253 0.999 33 TOTAL - U NIT
- 2 0.0W CA M,91 W
~"%otal lleat (ei UnVs If:L
(
y,gg A nn a : 7,26 + 9. 9 I = 37.17 NBtull* jff' ' A.91
- IM
.smy .
7.a 40.0s neupa 1
~
l CALCULATION SHEET ".O./c.c./ J CALCULI.fi&G 8:0, agvistoa gratt ,
. neio.,
13 9 24 . 2.fo -/ O Ifont?f ^:
""'"T*.i+em1,el s/o/n "M"'J"E"1"" yAvle, E3"'f2Z"'"l'#z
'"'"" FUEL POD L'bECAY HEAT LOAD
{ a) CASE 5 Same, as case 1 with no 59 assem8&es. App 20ach ' Tdethe % dwlbt HMh Anns WR I (1 4 9t, assenhete.5. Use e&@(m. Decay Reat calcula&w. TABLE Viit- HEAT DECAY 7Lnit " I. PlPa M6tu.lIn p [oha.a. From Su mma24 c/ Clue 2 0.000 735 A 7A6 6.2.6 ( //3 Cote (3 ft) ISOhn + VS' cloys 09I4! 55
+ 12fs = 3.83x,10% 0.00009.I7
{l3 Cete{3y) I50la + 45 day.> %. O.0 0oo2.13 0.2 l l Sg
+ 13 p = 4./YXio lls con (.sy)+sou + vra ob 0.00002.10 0.208 53
/V p = 9.4 ll3 cote [3p)+ISOb +! VS'diup 0.203 5Q 15 y c !.77x & !p u 0.00002.05 .
O.24 cate[3p)+ 38 16Iso h.409xYo 4r d. cup % 0.00001n 0.144 p =5 Tot a,t. - U. nt * \ 0.0002379 8.24 8 74 For 0. 2 y CO2e. rnoa'if'ed 2 on & : ( @ M stu, j ka = 2900 x PlP A3 4121s 0.2.'1%%
STONE & WEBSTER ENGIMEERING COAPOA ATION
,,,, , a. . , ,, ,, my , , e , ,,,,,,,, ,3,,
CALCULATION SHEET O 174M r isi,6., 13929,2 G - I naviesta / cuscusa / D ATE 1:*0Ef t:0EY.T CEVIEUER/O&TE
'atransn/pais
' L.Sterr11.el 5llLl32 G k 0 . L A ,, V /o Y lf.n- flft~ '6..% ^ " " '
h r/>v'O-FUEL POOL DECAY HEAT LOAD Ca..se 5 (eon'd TABLE 5 (cont) Quo.n'Ci Unif
- A P Po H btu-lhi crT 0' 00!A'07 13.91 b S Frorn Summaty f Ceue 2
//3 co2e[5p)=/50hf /A3(coe 0 t18 53 3.'78 x /b ' Jec, 0.0000 A1 2
Il3 Cote (3y)150hu+ = 4.10 x13 gse.sc. 108 0.0000%l4 0'Al A SA ll3 cO2e(bvL} ISO fv>:-t- 14 y C.2Io 5A
. 0 = i.Ia ff x /08.sec 0.0000RI L
( ll3 CChe(3j7h 150 %+ hh I5 }3ec 4.7 4 x 106 0.0000207 0,20 5 SS 0.2'{ cote (3 =y) 150kra +' Mc 16 -"%5.C'0000A0 0S
- tb3 0' ' N 5 OA Tot a,L o.0/5/5 / 4 90 87M e
Su mmaty
- Totett +/e.c:t/f Mhib / d 8.24 + /t !. 90 = A 5. I LI M6+wlk
{ Totezt locaD'ons = 8 7tt + $7 y = 174'8 Ilo{e ' For o.2.4 c.ot e paed Q - @ , pa p Ib
~
"' " "*" ** '""'* * " " " " " prest
.' CALCULATION SHEET "'.S./
J a.o. / cALcuLt.Tsc2 ko. LEY:stom lb9 29 . 2fs - I o I E *S-?C a k,a, ER/DATE hk G ML r/4 iga INDEPENoENT R VIEWER /CNECNER /DATE P R E PA R E R / D AT E t-d 5 hLl H. 90C 6 k REYt{t. dav/f1 L.
"'"*""" ;:d at Foot. oscay aEni WAD
( 9, LASE _G same ao Gue 4 ht IVotTh Anna amnMdo Rppwae4. 496 asemb&is femSmg divided yL (Luit
- I an d A.
ff N. A nw wiff Aase- b 26 + 496/2 6ath 1 sit
= 879 a45em44eo.
7Lsed yon @ Meat 8ccatco kad~%. h/ged Ta):4_5 B %d Et % C. ace 4 axui. , ( ?eca1culafed % 496 & Q sung .
'For 0.0 4 con s aad ycm @, pye..n
(
l STONE & WEBSTED ENGINEERING CORPOR ATION i CALC,ULATION SHEET ,,,,,,,,,,,,,,m y,,, ,, ,,,,,,,,, ,,,, e ioieli IM 2.9. 2.6 - 1 O /9a/ M , I ER/DATE paePanen /;,4TE mevisuse / cNacusa /AATE Q& O % r/alff 2- GR&*
- L: imOEPENDENT REVl5t,.s-/>ylfs- '
. L. Mal sh2.] n ***"' ' ' ' "
""'*""FNEL POOL DECAY MEA 7 1.oAD
{ Caa L (sout). TABLE X - +1E AT DECAY H. ANNA,"1 llm'b " I p P. Ivi8t:u. hr. 0""#' loc 4'Clo4 Y o.oco7332 7,26 6A6 Total pu Tame Vi,pS.a 1 5 0 M + 't5^ ll3 coze (3p+)inp = 5.t38 x 0o.co
- a. o o 2.17 - 0, Ris 53 i istW14- 4rd. asp 3 cme (3p+) ts % . 4.14 xe to tic
- o,00o0115 0. 2 i i $2.
c 1 S Cate ['ty 1504x+)l4+pMI% = 4. 460.000o xio 4,cca.io 0.A06
, 5S l'
( 3 teu(3g+150fe. + 45 o.co en.06 o.206 5A 15 p = 4.*l7 x, t 8 pc. 150k + 4rclago O.9.y cote (3f+) 16 y -S.09C.00o x 10%. o 4.oi O.I43 56 Total -U.nt * \ O.000791 B.2 4 874
"" " ' * " ** * ""'" * " " " * " 4ASE G.EVl88 03 CALC'ULATION SHEET J.~J./J.g. / CALCSLATIL.J KO.
%,a, 1 3 9 1.9 . u , I O 20 % 75 WER/DATE MEYlEWER / CNECXER / DATE PR EPARER / D ATE L. %k e9 5'f2I82- (2dt & M rl2llIb- lhDEPEMOENT REAVtfxt~a &
^ ^ * * " ' ' ' ' "
"*'""' FUEL POOL DEC.AY HEAT LOAD
{ Ca64 6- (C,os+I) .. T ABLE _Fi HEAT DECAN M . A.h) M A S i ~
!4Wt *A P Po M8b hr b"ed'.k o.coson D9 9I 62.6 ToteJ. fun,u T.ade. vir 1l3 cette. (3 p)= 3.16 )(8l0iEOkr.s+l0ps ec 0.0000 L.25 0 2A3 5S ll a I/3 c,ote. (Sp)=.15(% +
3,Ln i t 0 0.00002.I8 0 2I& 5:L If3 Cole,(3<%5) f 50 d5 + 12.p 0 0000 2.lb 0.Al4 52
= 3.78 X f0*se.e.
I 3 Cate,(3h=ISOM + 8 .Gec.13 p O.OOOOR I4 kJO K IO 0 2lL 33 IM 0.24 Cots ( (34,ll2.X
^%)=150 IO b +0.0000212 8 bc 0. /SI 38 0.00313 30.93 Oy To-t o. l.
Su. vmm cut v=c 7OtObMf.d N N . O M tb. l k 18.14 + 3 0. 9 3 = 3 9.17 MBtu.l A1 ' Tofa,L iOwflons = 3N + 8 N = l748 s LTE), 1 (
1
"' * " " " '" '* " "'" " " * " ,I CACC,ULATION SHEET "'.O./J.0./ CALCrLATI A NO.
I L E VISI O.J PAGE J l awa 159.29.26 -1 0 2 1 et..'L C PREPAR ER / 0 ATE L.s/embe/ 5ll2lh R EVIEB ER / CilECKE R / D ATE 9R & 2/L $/n b HAG tu EPENDENT . k REVIENER/0
< " * FU E L POOL D ECD Y HEAT LCAD
- 10. TASULAT)ON OF CASES 1 THPU G ._
CASE NO. UNIT 'NO. MBtu / ht LOC.AT IO N S PAGE l N. Anna.*I 5,AS Aos 6 I
" L 19.25 26l G I
s t a t y I i' 2. 3 9I 496 7 , Total AO 44 9G6 2 N. A.
- I 7.g G 616 9 1 0 2 13.91 616 to A S q 'Ii2 3.91 496 '1-lo Total A4.08 I14 3
( . 3 N. A .* I (As A09 IR 26I 3 u R 98.04 Il 3 S q "l(E 4.9 I 3623
, 4 96' 966 7-15 Toted .
4 N . A.
- I 7,26 ,
616 19 v # 29 9/ !, GAG IS 4 A 9 SuWt>d;d \k 2 A.9 I 49G 'f-15 Totd 4 C.08 1746 a.A4 874 16 5 N.A.* I 5 v 4 1 /4.90 3 74 17 Tota.L _ 2 S.14 I748 874 19 6 N.A." l 8. A9 l 6 h*A 3 0,93 8 74 A0
, rocaJ 39 /7 f793
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'.V,09CO p APPEMDIX J " " *' * "
- 7 ' * * * ~
April 28,1982 N51-507-005
~
DQ2 0* Y Mr. C. M. 'Rilbur Project Engineer Stone & '.iebster Engineering Corporation F. O. Sex 2325 Boston, Massachusetts 02107 De ar Mr. iiilbur: TL'!L POOL DECAY RIAT *.,0 ADS POISON SPEN! TUEL RACK PROJICT NP-51.2 NDR7.4 ANNA POiiER STA!! S UNIT NOS. 162 Tou are herein authorized to pro: sed with .the calculation if spent
- fuel pool decay heat loads and pool te:nparatures and an assess:ent of the impact on component cooling and service water systems in a::crdance h e estima:e for this with the scope of work contained in Attachment I;22, 1982 (N51-V01-803),is 220 werk, provided in your latter of April
- manhours.
All work associated with this task shatl,1 be charged to J. O. No. The
' 13929.26. he current calling for this project is 150 sanhours.
new ceiling is 370 mar. hours. ne 1932 in: rec 4nt for this task is 220 ( canhours . .
----y The required cenpletion date f=r this work is May it., 1982. Please notify us in writing in the event you should anticipate exceeding the new nar. hour ceiling or be unable to meet the required schedule.
If you hava any questions on this matter, please centact the project engineer, Mr. H. S. McKay a: (804) 771-6079. .
~ very truly yours, A. L. Parrish, III Manager Multiple Power Proje:ts MsM:cbs
. Attachment
~
. cc: Mr. C. J. Burroughs , w/ attach =encs I M. L. Bowling, Jr. *l. T. Davids on bc; G. B. Flowers M. L. $=ith J. C. Harris, Jr. J. M. Davis PSI &C Records Management NP-51.
L. A. Taylor
~
(H. 5. McKay *. .
~ - - - . - ~ ~ - - - .. .
~
Po-fC G If 7o' M ATTACictENT I . SCO?E 07 WORK For cases 1 thr= ugh 6 described belev calculate the following:
- 1. Tual Pool De:ay Hea: Load
- 2. Tuel P::1 Te=peratures for the f:11:r.-ing Cecling Sys:es
- ir. sups .
- a. 1 pump 1 coola:
's . I pump 2 c:21ers
- c. 2 pu=ps. 2 coolers j 3. Assessmen: ef the Impact en Ceep:nen: Cooling Water and Service Water Systa=s.
ASSUMPTIONS FOR ALL CASES
~
( Haa: Leeds to be calculated using NRC Branch Techr.ieal Position 9-2. 1.
- 2. North Anna - use stretch rating of 2900 W
- 3. Surry - use stretch ra:ing of 2546 W l
( 4 All fuel assumed to be coved to the pool instantaneously 150 heurs l af ter shu:down except for full ecra discharge case when fuel is coved ft:= :he reactor cors :o the fuel posi at a ra:e of 20 mins. per asse:61y stariing 150 hours af ter ahutdown. .
=
l
- 5. Service va:ar temperature at its design cax. of 10007.
l i l F ~ . , Ttw CCd : tis 2'F 9;.9 S n.tlo o 'f. f 3. ! 9 9.
. .. . - .. . . . _ _ , . . , _ , - _ - _ , , - , _ - . - _ - , _ _ _ __. _ ..,.._._,_m.,m. ... ..-. ry.__ __, , . _ , , . . - . - . . _ _ _ _ , - _ .
Question B.7: Verify that no loss of fuel pool integrity or cooling function could occur as the result of a load drop from the maximum lift height above the spent fuel pool and fuel building operating floor during rack handling and installation operations. Answer: An analysis has been performed to evaluate potential local damage and overall structural effects to the spent fuel storage pool due to a spent fuel rack drop accident. After the rack is raised to its highest elevation over the spent fuel pool, the rack drops straight down and strikes the pool floor. Two fuel rack drop
- attitudes have been considered: the rack hitting upright with its axis vertical and the rack hitting on its corner at an angle.
Based on the results of this analysis, the rack drop events could cause minor structural damage to the floor of the spent fuel pool loading area. There will be some local penetration of the floor. However, the overall structural integrity of the spent fuel pool will be maintained. A copy of the report describing the analysis and the results is attached.
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