ML20151E471
| ML20151E471 | |
| Person / Time | |
|---|---|
| Site: | 07109079 |
| Issue date: | 01/31/1988 |
| From: | NUCLEAR PACKAGING, INC. |
| To: | |
| Shared Package | |
| ML20151E470 | List: |
| References | |
| 29178, NUDOCS 8804150253 | |
| Download: ML20151E471 (78) | |
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SAFETY ANALYSIS REPORT FOR
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i NUPAC 14D-2.0 CASKS *
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O7 TO 10 CFR 71 TYPE ' A' AND LOW SPECIFIC ACTIVITY PACKAGING REQUIREME. TS V
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- Forme rly HN-100 Se ries 2 Radwast e Shipping Ca sk l'I ' 7 e e o u s e = 2 sO m PLF)
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r NuPac 14D-2.0 Rev. O, 1/88
/^s TABLE Of C017tEvrS
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i Paee 1.0 General Informa tion 1-1 1.1 Introduction 1-1 1-1 1.2 Package Description 1-1 1.2.1 Pa cka gin g 1.2.2 Ope ra t ion Fe a ture s 1-3 1.2.3 Content s of Pacuging 1-3 1-4 1.3 Appe ndix 2.0 St ruct u::a1 Evalua t ion 2-1 2.1 De sign Criteria 2-1 2.2 Weights and Centers of Gravity 2-1 2.3 Hochenical Properties of Materials 2-1 2.4 Gene ral Standa rds f or All Packa ge s 2-1 2.4.1 Minimum Package Size 2-1 2.4.2 Tamper Indicating Feature 2-1 2.4.3 Po sit ive Closure 2-2 2.4.4 Chemical and Galvanic Re act ions 2-2 2.5 Lif ting and Tiedown Standards for All Packages 2-2 2.5.1 Lifting Devices 2-2 2.5.2 Tiedown Devices 2-9 O
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- NuPac 14D-2.0 Rev. O, 1/88 l
I IAlg:8 OE CONTEhTS
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i Continued i
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l t-i 2.6 Normal Conditions of Transport 2-11 l
l 2.6.1 Heat 2-11 2.6.2 Cold 2-12 2.6.3 Reduced External Pressure 2-12 2.6.4 Increased External Pressure 2-14 2.6.5 Vibration 2-14 2.6.6 Vater Spray 2-14
}
2.6.7 Free Drop 2-14 2.6.8 Corner Drop 2-30 l
1 2.6.9 Compression 2-30
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2.6.10 Pe ne tra t ion 2-30 t
2.7 Uypothetical Accident Conditions 2-30 t'
i l
2.8 Special Form 2-30 y
I a
i 2.9 Fuel Rods 2-31 l
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2.10 Appe ndiz 2-31 2.10.1 Ratchet Binder Itechanical Properties 2-31 3
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3.0 Thermal Evalua tion 3-1
}
i 3.1 Discussion 3-1 j
3.2 Summa ry of Ite rnal Pro per t ie s of Tk t e ri al 3-2 i
l 1
3.3 Technical Specifications of Components 3-2 i
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NnPac 14D-2.0 Rev. O. 1/88
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TABLE OF CONTENTS y
Cont inue d fjult 3.4 Thermal Evaluation for Normal Condition 4 of Transport 3-2 3.4.1 Thermal Model 3-2 3.4.2 Maximum Temperatures 3-9 3.4.3 Minimum Tempera tures 3-10 3.4.4
!!a ximum In t e rnal Pr e s sur e s 3-10 3.4.5 Maximum Thermal Stres ses 3-11 3.4.5 Evaluation of Packs ge Performance for Normal Conditions of Transport 3-11 3.5 Ilypothetical Thermal Accident Evaluation 3-11 O
\\2 4.0 Con t a i nme n t 4-1 4.1 Containme nt Bounda ry 4-1 4.1.1 Cont ainment Ves sel 4-1 4.1.2 Co n t a i nm e n t Pe ne t ra t ion 4-1 j
4.1.3 Se als and Welds 4-1 4.1.4 Cl o sur e 4-1 4.2 Requirement s for Normal Conditions of Transport 4-1 4.2.1 Containment of Radioactive Material 4-2 4.2.2 Pressuriza tion of Cont ainment Ves sel 4-2 4.2.3 Containme nt Crit erion 4-2 4.3 Con t a i nme n t Requireme nt s f or Hypo the tical Ac cident
'~N Conditions 4-2 111
N: Pac 14D-2.0 Rev. O, 1/88 TABLs of CONTENTS
-( )
Continued EALt.
4.4 Special Requirement s 4-2 5-1 5.0 Shielding Evalua tion I
l 5.1 Discussion and Result s 5-1 I
6.0 Criticality Evaluation 6-1 i
7.0 Opera ting Procedures 7-1 7.1 Initial Shipment Prior to First Use 7-1 j
i 7.2 Long-Term St ora ge 7-1
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7.3 Lifting 7-2 l
2 7.4 Use of the Cask as a Licensed Type A or LSA Container 7-2 7.4.1 Removal of the Prima ry Ltd 7-2 7.4.2 Removal of Seconda ry Lid 7-4 7.4.3 Inst alla t ion of Prima ry Lid 7-4 i
7.4.4 Installation of Seconda ry Lid 7-5 l
7.4.5 Cask Loading 7-5 1
7.4.6 Cask Removal from Trailer 7-10 l
7.4.7 Cask Installa tion on Trailer 7-10 i
7.4.8 Preparation of Cask for Shipnent as Type A l
or LSA Cont ainet 7-11 1
7.4.9 Receiving a Loaded Cask 7-11 l
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7.5 Removal of Liquid from Casks 7-11 9
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NuPac 14D-2.0 Rev. O, 1/88 TATILE oE CosTnns Continue d Pane 7.6 Cont ainme nt Pe ne t ra t ion Se al s 7-12 8.0 Acceptance Test s and Maintenance 8-1 8-1 8.1 Acceptance Test s 8.2 Maintenance Progr am 8-1 8.3 Appendix - Discus sion of Gamma Scan Procedure 8-6 0
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NaFae 14D-2.0 Rev. O, 1/88 r
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1.0 GENERAL INFORMATION j
e 1
1.1 Introduction l
f The purpose of the f ollowing document is to provide the inf orma tion and o n-gineering analysis that demonstrates the performance capability and structural integrity of the NuPac 14D-2.0 cask and it s compliance with the requirements of 10 CFR 71, f or Type 'A' and Low Specific Activity (LSA) radioactive nat-erial sh ipme nt s.
I 1.2 Packsae Descriotion 4
1 The NuPa c 14 D-2.0 c a sk i s a top-loading, shielded container designed specifi-I j
cally for the safe transport of Type 'A' and LSA quantities or concentrations of radioactive waste materials between nuclear facilities and waste dispo sal sites. The radioactive material s may be packaged in a number of dif ferent type s of disposable cont aine rs, such as carbon steel liners or high integrity containers.
t The NuPac 14 D-2.0 c a sk is a pr ima ry c o n t a inm e n t ve s se l for radioactive t
4 f
materials.
It consists of a cask body, cask lid, and a shield in the f orm of a top-ope ning right circular cylinder which is on it s vertical axis.
Its 1
l principal dimensions are 81-3/4 inches 0.D.
by 81-1/2 inches high with I
int e rnal space of 75-1/2 inches I.D. by 73-3/8 inches inside height.
I 1.2.1 Packsaina I
The cask body is a steel-lead-steel annulus in the form of a vertically f
oriented, right circular cylinder closed on the bo t t om e nd.
The side wall s l
consist of a 3/8 inch steel shel l, a 1-3/4 inch thick concentric lead cylin-t l
de r, and a 7/8 inch thick outer steel sh e l l.
He bot t om is four inches thick I,
(two 2 inch thick steel plates welded together) and is welded integrally to t
l both the int e rnal and e xt ernal st eel body cylinde rs. The steel shell s are further connected by welding to a concentric top flange designed to receive a i
A l
1-1
NaPac 14D-2.0 Rsv. O, 1/88 S
ga ske t type se a l, Positive cask closure is provided by the gasket se al and
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the required lid hold-down ratchet bi nde rs.
Four lifting lugs are welded to the outer steel sh e l l.
NuPa c 14D-2.0 ca sks hav e two (2) opt iona l drain pl ug conf igura t ions.
Both have the drain plus entering horizontal to the cask bottom with a double plus configuration. These configurations allow the cask to be drained with minimum opera t ional e xposure.
The design of th e NuPa c 14 D-2.0 pe rmit s optional use of a tw e l v e gauge s t a inl e s s s t e e l, Type 304, ASTM A-2 40, ca sk int e r ior c ay ity s urf a ce l ine r.
The liner will be permanently installed in the cavity and seal welded along all edge s.
The ca sk (prima ry) lid is four inches thick (two 2 inch thick steel plates welded toge the r) which is stepped to mat e with the upper flange of the ca sk body and it s closure se al.
Three steel lug lif ting devices are welded to the rS cask lid for handling.
The cask lid also contains a ' shield plug' ( se co n da ry l id) at it s ce nter.
The shiel d pl ug is five inches thick (two 2 inch thick steel plates and one 1 inch thick steel plate welded together) fabricated in a de sign similar to the c a sk l id.
It has a gasket seal and use s eight hol ddown bol t s to prov ide positive cask closure.
The shield plug also has a lif ting device located at it s ce nter to facilitate handling.
The shipping ca sk has two closure systems:
(1) the cask lid is closed with eight high-stre ngth ra tchet binders and a ga s ke t se al (the prima ry l id), (2) the shield plug (the seconda ry lid) is cl osed with eight 3/4 inch bol t s and i
the same se al system used for the cask lid, but sm al l e r.
The shipping ca sk tiedown syster onsist s of two se t s of crosse d tiedown cables (total 4) and eight shear blocks (affixed to the vehicle load bed and not structurally part of the cask) designed to firmly position and safely hold tN the cask during transport.
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NmPac 14D-2.0 Rev. O, 1/80 The respective gross weights of the cask components and it s designated radweste loads are as follows:
1 Cask Body 28,500 pounds j
Closure Lid 6,100 pounds Shield Plug 400 pounds Total Cask (Unloaded) 35,000 pounds
[
1 Payload 14,000 pounds 1
Total 49,000 pounds a
i 1.2.2 Ooerational Features Please refer to the General Arrangement Drawing in Appendix 1.3.1.
There are no complex opera tional requirement s connected with the NuPac 14D-2.0 cask and none that have any transport significance.
i 1.2.3 Contents pl Packsmina The cask internal s consist of four separate configurations based on the types
.)
of containers to be housed:
(1) One large disposable container, (2) eighteen 3
j 30 gallon drums (including two 9 drum pallet s for material handling), (3) fourtee n 55 gallon drums (including two 7. drum pallet s), or (4) eight 55 i
gallon drums (including two 4 drum pa l l e t s).
All interna l containers have integral se als or closure s, integral lift lugs and vertical symmetrical cl e a rance s.
Drum s a re s tacked in tw o tie rs or l ev el s, each on removable pallets designed to minimize interaction between drums.
The contents of the various internal containers may be process solids in the I
form of spent ton exchan,e resins, filter exchange media, evaporator conce nt rat es, and spent filter ca rt rid ge s.
Ma terial s will be either 1
dewatered, solid, or solidifled.
1 1-3
i NuPsc 14D-2.0 Rev. O, 1/88 1.3 APPENDIX Appe ndix 1.3.1 NuPac Drawing X-20-215D l
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NuPac 14D-2.0 Rev. O, 1/88 2.0 STRUCTURAL EVALUATION 2.1 Desian Criteria Applicable criteria are presented for each load condition as they are examined in each of the following sections.
All margins of safety are with respect to ASTM A-36 st e el s unl es s o the rwise noted.
All casks built af te r Decembe r 18, 1980 are built of ASTM A-516 Grade 70 rather than A-36, to take advantage of the increased yield and ul timate strengths of ASTM A-516 Grade 70, as well as it s supe rior low tempe rature prope rtie s.
2.2 Weichts and. Centers o_f, Gravity Weight information is prese nted in Section 1.2.1.
Pa c ka ge center of gravity is taken to be the geome tric cent e r of the packa ge since the package c.g.
could not shift significantly from this location for any particular loading, and such a shif t would not materially affect the analyses pre sented below.
O 2.3 Mechanical Prope rt it.1 pl Mat erial s Pertinent mechanical properties of materials are given as they are used in the f ollowing analyse s.
2.4 Gene ral St anda rds f.2I. All Packane s 2.4.1 Minimum Packare Size The NuPa c 14D-2.0 ca sk's minimum ov eral l dime nsion is signi fica nt ly l a rge r than the 10 cm minimum required by 10 CFR 71.43(a).
2.4.2 Tamper Indicating Feature A t ampe r indica ting sm al is installed on each of the cask closures per the requi reme nt s of 10 CFR 71.43(b).
These closures are the p r i ma ry t id, the seconda ry lid, and the drain, 2-1
NnPac 14 D-2.0 Rev. O, 1/88 2.4.3 Posit!ve Closure As noted, the prima ry lid is secured by means of eight high strength ratchet bind. s.
The se dev ise s are installed so that inadvertant and unintentional release is impos sibl e.
The se co nda ry lid is af fixed with eight 3/4 inch diame ter bolt s.
Therefore, the pac ka ge is equipped with a positive closure system that will prevent inadvertant ope ning.
Chemical Enj Galvanic Reactions 2.4.4 n
The shield is constructed form heavy structural steel pl at e s.
All exterior surface are primed and painted with high quality epoxy. There will be no galvanic, chemical or other reaction among the packa ging component s.
2.5 Lifting and Tiedown Standards 19I All Packages 2.5.1 Lifting Devices 2.5.1.1 Packaging Lifting Lugs The package weights used for analysis are as follows:
Empty Packa ge 35.000 pounds Payload:
14 Drums 1.000 pounds each 14.000 counds Gross Weight 49,000 pounds Assume that only two of the four lugs are used to lif t the packa ge.
l Therefore, the maximum load per lug will be:
P = (49.000 lbs) (3 s's)/2 lugs P = 73,500 lbs l
2-2
i NuPac 14D-2.0 Rev. O,1/ 88 s
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From the dr awing:
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DIS.
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r*-- lo 9 Using the Structural Methods M a nua l, SSD 60048P, Ilughes Aircraft Co.,
F i gur e 4.4.1-1 a nd 4.4.1-3.
given on the f ol l owing pa ges:
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W/D = 6/2.5 = 2.4 and R/D = 3.3 5/ 2.5 = 1.3 K = 1.21 Ultimate lug capability is given by:
P
=KDt F
'th e r e :
K = 1.21 ult tu D = 2 p in.
t = 2.0 F
= 5 8,000 p si (A-36) tu (1.21) ( 2. 5 ) ( 2. 0) (5 8.00 0)
P
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= 350,900 lbs ( ul t ima t e) iv 2-3
N; Pac 14D-2.0 Rev. O,1/ 88 I
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Figure 4.4.1-1 Asially Loaded Lug Denign Chart
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r
- /* _
g.
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r__
- u. * *. r. ' '
- i 4 4
I.
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+
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9 ---
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. r
=q y/..
m. =...=. 1 1.;-
f~.. -, _ = rrr=-
o
.... -~--
.-= =: = t_...
_. - - - ~. _...
_._ ~:n....
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g j
- .:cu.r.._.7 _.."...::._...;
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" y.. =..-
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" t.= u *-
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..7:-~;=
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,,,.......W.,. ) g,,.;..
.__f---
,... _.;; ;_ g,g__.;;,.,,.... -
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.. _ u.; ~,
- _:z u. --
- a=
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. j. -.. [.9,. _J __-*, -f. i.. _.J-.!..". *. n:.. ' 3 _ __.....'..'_-'_*'*.;*.......t._...q'.;.~.* *" -..
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....a : F ---- 1.. g.
' ; L
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p
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- - ~ + - - -
--,.. _,. /:- r/.. -
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..y--...e.-..
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=_=.:..-_... -
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M
..w._..-:.-.. '..
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it 4
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7.,
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L
__w....
-. i
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~.=::... f
. - - ":=:
'..:- ?
.___rt m
- _ p.
,. m n -- -
D0 g.xw. 3.-.
4
-~~~.~ Z..t"-
- -f"";- -
E2'." ~ ", - _- -..
{ CeititaL $eain ciatttith n.
. Y_ ; __u_ _,
. - - = ' -
22- _
$ ge 9Csh 6aaim oeItt;c4
~
Arf...ci:.. > +
.t-
,7 u=:2:. u _i
~ - t-
- f. -. y,_, _ _,.. w L u r.p i
.- ~
o..~
ugg s,
e:e
- .g g H ca6 6ea 4 & i e t t N = +.- -+- - - o -
e
-~~
fN
M....... _-"-- - - - _. _....
-- a.
+
1--t
"!'-+-
'"M
/
C4
\\
0 ce es it it 20 to 88 la w
i get C g g:, eatice, a 2-4
NuPac 14&-2.0 Rev. O, 1/88 Figure 4.4.1-2 Yield Correction Factor for Asially Loading Lugs s
.4
.. + _ ; -S.rt-r.'.!
.-: p - r_ = l a - ~
i-- m. _. -
x+
,i..
. a. " __q - -- C M q._ m __.;
' q; F.C.-
l 0'
- r. :.:-,:.:. m.:
r, f -*-;;;--. - :-?-t _. & 1
-m
7; ** g ;. ; - : _ c._q---c.;.--..
.. -.. 7.. : r#
n,
.:.. -- u-w.. -
.1 :
- 1 w:.m.. _,r -.-ll. --. r_.
- D.._.-G
= ;
f c_;.t. _ lL - a_... r-p.M, u _p:._ b.
c[._.-Q-t_--.__
i t--i__ a
._ c J-(: 7. --1. 9.- y _. N i. _: r.%-_.
i o
}
_g.,.
..i.,j.,1;y
- _ j _g. 5.y.. _ !.
- -. c
.... c *.
. :. L.
v,.
- -- -:...a_.....- - m.,.. J. : _- J._..,._l.-.
-.: - 4.,
- :. p. M.. ; 7._i M :.. Lw--../.i; -#.-
l
- 1..,.._ ; - - A.. ; y--- m. A F-
.ci
--i;.
o
- 4 06 :e 2
i4 s
.a zo la 24 as (e t ; p,o rt. *;a Fi gur e 4.4.1-3 Allowable Laterial-Lug Loads l v i
g*_j;Q'k POL.Vy,=,-Qt, u.r 9. t s s n, gy=,-W-- t
.m, e.. w e o
es
_ __ -.__m %,y,
a,._
t >
- cj ;
--q.w.
. _T *
- s i t a *
'.t.t ria sn;fra,,a,e il
/g*.^ ' D -47?',! M. "J 9 e.;t 4.1 4 s ; a.,,. t,, w.,'. g g 8
i n-s
- 6.
k. M- - w-r- z % s+ c f. e. s. r t n.v+ a s.
- i v.,.,a"..,
V
.+
.ar
- 3
- a. m',;r;,;
t.
s,.6..
.s.+
F-b"igv.n :
- a.
_.' ts.
n::
..,... *.,.,,,.. i. $ a i.., )
. u.--
%. m - _i t
--.;_-.r
.n.
- ,W..y j[ :-- A_:7 4:~ 4 A ; ~' _ 2]jf
.u,.
{'..'...,,
r
,-a G-R
~~ ' _ ' W '
Q. 3. ;. 3 ;g.. _ _
8, E.D T et.
%_-by,,J-'?.M A4,..,s.
3-P(;g, 4
.*f.e._.-_.
st m.
f T'.-
G ' Ji 2 -- : %q.:: ' q c-a
=. 3_
E yr._- - -. g, y _---.
,b -.s..-
~ n
\\
. _j.. p.e %4-: -%
..s...--
l m u....,.. _ ___.4.
j Q Ei.En, W'~~ %%_r_. y.
r44 -
w s
..J#b't.. 3::__.~.;; y x.9 p
.y 3
=;,
y E3 U A....
-- = -t.. c+d j M C* k [
l-UC'nW -tihuw _-#;e.d' AW iEGsM.=rS2:.'.WM4Qs.2Mt;h; Wi+ Ld?-%2&hm.w+y D
e ee s.
K&2+1F=^%KH2 'h 4
~
= -rmmf -wm #=p.yxy, V
0i
---f 1
- a.wws : 7.., - = g l '3'J" kM Pwa's# 11E:4 4.n..,
5%
..a...w.N
\\
=M e -
ai ee, g. g e s... g.
e s
u - ikiW%.7'VRW-y. %$$. a.R':-.j$Li'W Y,Tii!Fj
~#
~ME i
r _ w u-
-., c ggw mS, l
0 L
la la 43 43 63
+3 m
g l
ahE.t O' 6:40 4WCat-:ee e c4setts 1
)
)
i l
4 J
I
)
J 2-5
NuPa c 14 D-2. 0 Rev. O,1/ 88 F rom Fi gur e 4.4.1-2, of the above reference, the yield correction f actor is given to be:
y = 1.1 or:
Pyld = PultyFty/FTu
= (350,900) (1.1) (3 6,000) / (5 8,000)
= 239,580 lbs (yield)
Ma rgin of Saf ety:
/P - 1 M. S. = Pyld
= 2 39,5 80/ 7 3,5 00 - 1
= + 2.26 Therefore, it can be safely concluded that the lug will not yield under a load equal to three times the weight of the package.
(';
2.5.1.2 Lid Lif ting Lugs (Primary and Seconda ry) v Ltd weight = 6,500 lbs. (includes both the prima ry and seconda ry lids)
Using three lugs the load per lug is:
P = (6500 lbs) (3 s's)/3 lugs P = 6500 lbs/lus f(0\\4.
n k
,4 v
e
\\ \\ \\ '. N N{s \\ N N N N N
/
- -6
i 1
NuPac 14&-2.0 Rev. O 1/88 I
f i
i 0 shear out equa t ion, i
Using the conventional 40 i
l f
0 l
P, = F,72t(EN - d/2 cos 40 )
I i
i 1
Wheret F,y = 24,000 psi (yield) t = 1 inch l
Y l
l d = 1 inch EM = 1.25 l
d j
P, = (24,000)(2)(1)(1.25 - 1/2 cos 40 )
l 0
P, a 41,614 lbs.
t i
[
Margin of Safety:
{
M.S.
- P,/P - 1 j
= 41,614/ 65 00 - 1 1
= + la r ge i O
{
Therefore, it can be concluded that the lif ting lugs f or the lid are f
j more than adequate to resist a load of three times the cask tid weight, l
l including the secondary lid.
k i
The secondary lid is lif ted by one lug and must carry the following load:
i
(
P = (400 lbs)(3 s's) t j
= 1200 lbs.
t s
0 P, = (24.000)(2)(.375)(.5625
.4375 cos 40 )
i
= 4092 lbs.
l t
t i
Margin of Safetyt i
i M.S. = 4092/1200 - 1 s
= + 2.41 l
l 4
I 2-7 l
f
N: Pac 14 D-2.0 Rev. O, 1/88
(
Therefore, the seconda ry lid is al so able to react three times its weight without reaching a yield stress.
2.5.1.3 Lif ting Lug Covers 1
Since the primary and seconda ry lid lif ting lugs are not capable of reacting the f ull weight of the package they will be covered during transit.
2.5.1.4 Ul timate Lug Failure Each lug is designed to tear out at the eye prior to f ailure of the lug to skin interface.
Th e mo s t critical lug is the main package lifting l u g.
Each lug is secured to the skin with approximately 62 linear inches of weld.
It s rated shear value would be:
P, = F,A
= (24.000 psi)(62 in)( 50)/ 707
= 1,052,333 lbs.
t Compare this to the lug tear out capacity of 350,900 lbs, the Ma rgin of Safe ty will be large 1
1,052,333/350,900 - 1 M. S.
=
I
= + 1.9 9 Therefore, the lugs will not fail in a manner that would be harmful to the package integrity.
I I
i i
i l
O 1
2-8
NuPac 14D-2.0 Rev. O, 1/88 2.5.2 Tiedown Devices A system of tiedown lugs are prov ided a s part of the packa ge.
They will be utill ed as follows:
t
/'
i T,/
': o o
m i
l
/
e x
1
)
t l
O l
2-9
i i
i f
I N: Pac 14D-2.0 Rev. O, 1/88 l
1
~
no worst condition is that of the 10 g forward load
)
P o = (10)(49.000 lbs) g
{
= 490,000 lbs f
The horizontal component for each lug is:
I, i
Rg = 490,000 (40.7)/(2)(69.375)
Rg = 143,733 lbs j
I i
R = R /cos 300 = 165,968 lbs g
s i
I i
l 1
l R
}
H'
/
l u
g/
@c4 e!+90ScoLB l
9
- 035, io.lo..
O
- WEAR PATE i
n l
l I
l i
i j
k i
1 The cross tie component will givet l
l l
N R_
R it t
)
i N
R_-
l O
0=
191,644 lbs RC = R/ co s 30 l
2-10 l -
NuPac 14 D-2.0 Rev. O. 1/88 O
Therefore, each lug will experience a load of 191.644 lb s.
From Section 2.5.1.1, the yield strength of the lug was calculated to be Pyld = 2J9,580 lbs Margin of Safety:
M. S. = 239.5 80/190,644 - 1
= + 0.25 Therefore, it can be concluded that the 10 g load will not produce stress in the lug greater than its f lowable yield strength.
If the load were increased t o approxima t ely 21 a's, the lug would f ail at the hol e.
This woal d not impair the cask's ability to meet the other requirement s of 10 CFR 71.
O 2.6 Normal Conditions d Transnort_
2.6.1 I!!11 0
The the rma l anal y si s of the NuPa c 14 D-2.0 ce sk, e xpo se d t o 100 F had the insolation prescribed in 10 CFR 71 f or normal conditto of transport is presented in Se c t ion 3.0.
St re s se s resulting from th
'hermal effects analyzed in Section 3.0 are calculated below.
2.6.1.1 Summary d Pre s sure s and Tenocrature s l
ne m zimum and einimum t em pe ra t ure s that the NuPac 14D-2.0 wil l e xee rie nce j
under normal conditions are calculated in Section 3.4.
The marinum temperature that the cask will reach i n 15 5.3
- F, a s s um.' a s'w o r s t case' conditions aed 400 watt s of internal decay heat.
The ma ximum pres sure unde r normal thermal condit ions is calc ulated to be 6.28 paig, as calculated in Section 3.4.4.
2-11
NuPac 14D-2.0 Rev. O, 1/88
()
2.6.1.2 Dif ferential Thermal Ernansion The dif ference in tempe rature be tween the inside of the cask and the outside of the ca sk wa s de t e rmined in Se c t ion 3.4.1 t o be 0.13 F.
This tempe ra ture di f fe rence is not enough to give rise to significant the rma l stresses.
2.6.1.3 St re s s Calcula t ions Since differential thermal expansion is insignificant, and because the maximum internal pressure predicted under the worst case thermal conditions is less than the pre ssure analyzed be l ow for reduced external pressure, thermal ef fect s do not produce stres se s in excess of those calculated el sewhere in this report.
2.6.1.4 Comparison with Allowable Stresses This section is vos applicable.
See discussion in Se c t ion 2.6.1.2 and Sec tion
'~T 2.6.1.3.
2.6.2 Cold _
All packa ge s manuf actured af ter December 18, 1980 a re f abricated f rom ASTM A-0 516 Grade 70 steel, which re tains excellent structural properties at -40 F.
0 Therefore, an ambient temperature of -40 F will have no af fect on the packa ge.
2.6.3 Reduced External Pressure An external pressure of 3.5 psia will produce an equivalent internal pressure of 11.2 p sig, as s uming the ca sk i s loaded a t one a tmosphe re,14.7 p sia. This pressure acting over the lid will produce a load of:
F = (75.5)2 (n) (11.2)/4 = 50,142 lbs l
}
Since there are eight binders, the load per binde r will be :
O P = 50,142/8 = 6,268 lbs/ binder 2-12
=. - - -. -
. l
NuPac 14D-2.0 Rev. O, 1/88 O
Pressure on the steel e nd s is reacted by pl at e be nding.
The l aminated 2 inch steel plate can be analyzed conservatively ignoring the inner plate and assuming the ends are simply supported around their edge s.
From Formul a s for Stress,a_gd Strain, by Roark, the following stres s may be calculated:
2
,, = 3W(3M + 1) /8nMt Where:
W = (11.2)(n)(75.5)2/ 4 = 5 0,142 lb s.
t = 2 inches M = 1/.333 = 3 f, = 3(50142)(10)/8n(3)(2)2 f = 4988 psi r
The margin of safety against yield for A36 is then:
M. S. = (36,000/4988) - 1 = +6.22 Iloop stress in the inner steel shell may be calculated as follows:
fh = Pr/t Where:
P = 11.2 psi r = (75.5 + 0.375)/2 = 37.94 in, t = 0.375 in, fh
- 1133 P si i
M.
S. = (36,000/1133) - 1 = +Large Therefore, it can be concluded that the reduced external pressure will produce no detrimental ef fect s.
O 2-13
NuPac 14D-2.0 Rev. O, 1/88
()
2.6.4 Increased External Pressure An increased external pressure of 20 psia corresponds to external pressnie of 5.3 p sig assuming that the cask has been loaded at one a tmosphere, 14.7 p sia, This pressure is less than the pressure resul ting from the reduced external pressure, so the Reduced External Pressure case controls.-
2.6.5 Vib ra t ion Al l compone nt s a re de signed f or a transporta tion e ny ironme nt.
No l o s s of integrity will be experienced.
2.6.6 Wate r Sorav The NnPac 14D-2.0 ca sk is f abrica t ed ent irely f rom steel and lead, so it is cica r tha t the 5 cm/hr siminated rainf all water spray test will have no detrimental ef fect on the packa ge.
O 2.6.7 Free Dran Since the packa ge weighs in exce ss of 30,000 lbs, it must be able to react a one foot free drop onto an essentially unyielding surface in the position for which ma ximum da ma ge is expected.
For this case, the most critical component will be the lid closure.
Assuming the packa ge is to be dropped one foot onto the lid corner, the impact energy will be absorbed by inelastic deformation of the steel corner.
K.E. = Wh Ot:
4 3
E. E. = F Volume = D (sin 0 - sin 0/3 - Ocos0)/8L/F,
og e
O Where:
W = 49,000 lbs h = 10 lu.
2-14
\\
l NuPac 14D-2.0 Rev. - 0, 1/ 88 D = 84 in.
4 0 = Contact Angle Fef = 36,000 p si Solving the equa tion, the local deformation to the package will be:
S =.66 in.
Therefore, pa c ka ge acceleration can be calculated as follows:
a = (12 in/.66 in)g's a = 18.18 g's o
~
x s'
R(TVP) A W
WdP g
4
\\\\NNY\\NNN a
-5
.66 If we conservatively assume that the total payload and lid weight to be solely reacted be the binders, then each must carry the following:
P = (14,000 lb payload + 6,500 lb 11d)(18.18 g'n'i8 binders f
2-15
NuPac 14D-2.0 Rev. O,1/ 88 P = 46,5 86 lbs/ binder The ultimate strength of the binder is rated at 85,000 lbs.
Margin of Safe ty:
M. S. = 85,000/46,5 86 - 1
= + 0.82 Gasket Seal Intearity The ga ske t de si gn requi re s a prot ec t iv e s t e e l spa ce r.
The spacer is in the f orm of a ring and is welded to the top of the cask where the lid inte rf aces with the case.
See f i gur e be l ow.
The lid compresses the ga ske t and bottoms on the spa ce r.
46.34*
5!DE 3 P A c E R n g n a
,,2 x,5o.
LtD Y VEL
-b
./
4 CRUSH HT, b 46.34
\\
Cross Section of Upper Case 2-16
NuPac 14 D-2.0 -
Rev. O, 1/88
.The worst case causing stress on the spacer is the edge drop.
The decelera tion is greatest i whe n the. CG i s di re c tly ove r the ed ge.
Bl.75 SI. S
/
}
Net Wt. = 35,000 l
g 46.34 Payload = 14,000 t-Gross
= 49,000 lbs.
Po sit ion of Ca sk a t Ed ge Drop The drop height of 12 inches and a gross weight of 49,000 lbs yields a kinetic ene rgy KE = (12)(49,000) = 5 88,000 l b s/ in.
i The flow stress is 45,000 Its, giving a displacement V of:
3 V = 588,000/45,000 = 13.1 in The v o l um e displaced is in the shape of a prism with a triangular cross section of the length L of the edge.
0 L = (85.3 8)(tan 22.5 ) = 35.4 in.
Therefore, the volume is bhL/2 as shown on the previous page.
The base is:
4 b = h/0.499 I
2-17 i
i
. --.. ~
--_-.--_..m_-
i NuPac 14D-2.0 Rev. O, 1/88 Therefore:
V = bhL/2 b = h/0.499 2
y=
h L/ (^.) (0.499) h = [(0.998) (13.1) /35.41 5 = 0.608 in.
0 The maximum deceleration Ag is twice the d ro p height 11 divided by the
]
displacement height h.
f I
Ag = 2H/h = (2) (12) /0.608 = 39.4 g's Deduct the mass of the lid and payload, since the se do not contribute to loading on the spacer.
Lid weight is 6,500 lbs, therefore net weight Wn is:
Wn = 35,000 - 6,500 = 28,500 lbs Stress on 35.4 in. length of spacer is:
4 0
S,p = P = (28,500)(39.4 a's)(cos 46.34 )
A
( 0.5 0) (3 5.4 )
S,p = 43,800 p si The bearing strength of A-36 is 90,000 psi.
Therefore, the M.S.:
M. S. = (90,000/ 43,000) - 1 = + 1.05 i
t O
l i
2-18
NuPac 14D-2.0 Rev, 0, 1/88 l
1,fid Attachment Strength d
To demonstrate that the lid will remain attached to the cask during a one foot j
side dro p, the worst ca se situat ion will be con sidered occurring whe n the impact force acts solely on the segment of the octagon shaped lids that pro trude mo st f rom the ed ge of the ca sk shell and to which the ra t che t binder is attached as shown below:
Leo n
ensn sMtLL
/
N
- s. -
4 no oo o RA1CHET 3:28A J)(PMT l
REE IMitCT VIEW tEKIN6 DoWN CN TOP SIDE V88W Since the inner segment of the lid act s on the cask in a manner similar to a bol t's shaft acting on a drilled plate, a simplified but conservative al ternative to a compl ex analysis of the actual internal f orce s caused by j
elastic and inelastic deform. tion of steel and lead acting on the shell during impact is to use the conventional 40 bolt shear-out method on the side of the 1
2-19
NuPac 14D-2.0 Rev. O, 1/88 cask opposite f rom the impact f orce, with the maj or analytical dif ference being that the lid does not go completely through the cask as a bolt would go throu gh a drilled hole; so the 26.32 inch are length of the 3/8 inch thick inner cask steel plate at the bottom of the 2 inch inside lid depth will al so resist impact force.
5: Re
- (3 7.7)(. to96)
= %. 32 "
cask 3MELL f
c U
h 4 h
/
i.
IMP ACT Ec RCE s gger vigW or T8f 65 mitt ED Impt4T FCACC 2"
e CASK gg S H ELL.
luntR l
E DGr oF UD s
( Ya" Weeanee I
f k %' Gap due lo Tolerance ard N
t 8
occur ren afMr
' ' " " ' ' W' 5:00 vif W g u,r, i a.t.
O l
2-20
NuPa c 14 D-2.0 Rev. O, 1/88 An enlarged view of the cask shell where the transmitted impact force act s from the lid is shown below.
I LW CASK 5 Hlu.
w-f
(#
I[ s p PLA W STML o
)
Start LEAD f%"
sit #L I* SHEAR M Ws f
k t
-I
-~
TAANSMITTED MPACT suRFAct J"
i s'
Figure 2.6.7-1 O
2-21 l
NuPac 14D-2.0 Rev. O, 1/88 b
Lid Analysis
%./
The inel a stic de f orma tion caused by the 1 f oot side drop will occur at the protruding lug rather than a t the lid / cask interface inside the sh e l l on the opposite side from lug, ba sed on the following reasoning:
From s t re s s = Force / Are a, and as suming the 49,000 lb weight at re st; t l,e compression stres s at the lug is 49,000 lbs/5 in2 = 9,8 00 p si.
The pres sure at the lid / cast interface is 49,000 lbs/(26.32 x 2) = 931 psi.
Since the pres sure at the lug is more than ten time s that at the lid / cask interface, the lug will crush prior to she l l de f orma t ion; the cru sh distance is cal cul a ted bel ow:
From K.E. = F Vol, Where FCR = 36,000 psi for A-36 CR 2
Vi = E.E /FCR = (49,000 lbs)(12 in)/36,000 lb/ in 3
= 16.34 in needed to absorb impact From the geometry of the protruding lug, and trial and error; the ske tch bel ow shows the distance of crush necessary for the crushed volume to equal the area 16.34 in3 'ne e de d' v o l ume :
$ ~ VMS%
Tb?
=
VHiw I
8 s t.f
- 4 i
i f
4
/
IIM 4,. i D I
4 l
1" VWW l
g a
p RATCHIT
~~~
SINOG 4 3
I = 1*4 in a
M x = 1.4/ t an 22.50 = 3.3 8 in
-A x = 3.38 in, the volume of crushed metal is:
V = (5 in x 1 in x 1.4)+2(3.38 x 1.4)
V = 16.464 2-22
NnPa c 14 D-2. 0 Rev. O, 1/88 O
Therefore, the 'g' force can be closely approximated from:
a = Distance Dropped / Distance Deformed = g's (Cask De signer's Guide) a = 12 in/1.4 in = 8.6 g 's This is the total force acting on the opposite side of lid, or on binde rs if the cask deforms enough to cause the vertical force on the lid to be converted into tensile force on the binders.
CASK SKu ANan'sts 45 mmed 4
s b
f shear plane.
TfA na mik 8mPufforse b tid eng,nn.c 84 *f From Figure 2. 6. 6 - 1., the (uk steil cask shell will shear across 2 in x 26.3 2 in of 3/81nch 4
thick plate and on both it s e nd s 1 in x 1-3/4 in ends of steel cap, and 1 in x 26.3 2 in of 7/8 in thick plate.
(37.7)(0.69 8) = 26.32 in.
Arc length = R (40n/180)
=
Shear--out = Force / area =
49,000 lb s x 8.6 a's 2(2 in x.375) + (26.32 x.375) + 2(1 x 1.75) +
2(1 x.875) + (.875 x 26.3 2) 2
= 421,400 lbs/39.65 in 2
= 10,618 lb/ in 2-23
NuPa c 14 D-2. 0 Rev. O, 1/88 O
When compared to yield of A-36 material:
(36,000/10,618) - 1 = +2.39 Ma rgin of Safe ty Whe n c ompa red to ul t ima t e :
(58,000/10,618) - 1 = +4.46 Ma rgin of Safe ty The above is conservative since it ignores the shock-absorbing contribution of lead.
The pr ev iou s ca l cul a tion wa s ba se d on the a s sumption that all the impact loading was converted into shea r on the cask shell. Due to the ge ome
- ry of the shell component s, and the fact that the 1 in. x 1-3/4 in capping ring receives additional support f rom the e ntire periphe ry of the ca sk, it is a s stune d th a t only a small amount of ' cantilever' type deflection will occur at the top of the cask's lip as shown below:
O g--
A ssible
_.. 'I Deflec. fica, 9's arvet
~/;
9 CA5k
% H EL.L.,
' I % LfAD
- d NSTtEL To check this possibl e de flection however, a conse rva tive approxima tion through the simpl e-be am approach will be used.
The circ ula r section of the 400 sh e a r-out area is ' flattened out' with the tw o e nd s considered fixed and conserva tively ignoring tha t the 3/ 8 in, plate is ' fixed' 2 in, f rom ca sk up for the fuli 26.32 in. lid / cask interface.
2-24
l NnPac 14D-2.0 Rev. O, 1/88 O
W/
g i o o i i o m n o w o, o i, o i,,,
E 36 3&"
2 3
Maximum deflection:
y,,, = (1/384) W1 /EI (From Roark) 6 3
= (1/384) [421,400 x (26.32)3]/[(30 x 10 )(2 x 3 )/12]
.297 in.1 300 in.
=
NOTE:
The above also conse rvatively a s sine s that the full 'g' loading goes into deflection and not partially into inelastic def orma tion / shear of the inner shell.
If the uppe r pa rt of the ca sk lip de fl ect s.300 in.; and since the ratchet binders are attached to the lid and cask by pinned j oint s and therefore, can e xpe r ie nc e onl y tensile forces, the deflection will convert into the below tensile force acting on the binder oppo site the deflec tion, s i ne =.3 00/ 2 =.15 0
0 = 8.6 co s 81.40= F/412,400 F = 412,400(.149) c A3 x s ugtt,
[
h O' F = 61,669 lbs.
The binde r is a 1-3/ 8 in, binde r with a rated capacity of 85,000 lbs.
I
< 4l1f 2-25
NuPac 14D-2.0 Rev. O, 1/88 The resulting margin of safety is:
Margin of Safe ty = (85,000/ 61,669) - 1 = +.3 8 Also, this is conse rva tive since more than one binder will sha re the load.
Lid-lun Analysis Calculating lid lug shear-out using the dimensions given in the sketch below:
A F
1
_I z
J
/ 50
/
/
/
/
l.60
, j ',
=
7 b /2 A4
/
8.76 5
0 40 She a r-out :
0 F
2t(EM - (d/2) cos 40 ]
P
=
su su Where:
i F
.6 x uit
=
su
.6 x 5 8,000 (A-36)
=
4' 34,800 p si
=
t=1 inch d = 1.12 inches EM = 1.50 inches i
6 2-26 l
-nm-~---
an,
--.-,-re
-,.a,-------.--v_
,ww--,-,-,.-
.n.,,-mm,-,,-v
,n
, - -, we
,,-,,,r..
NuPac 14D-2.0 Rev. O, 1/88 O
(34,800) (2) (1) (1.5 - (1.12/2) cos 40 ]
P
=
su P
= 75,4 52 su i
Margin of Safety = (75,452/61,669) - 1 = +.21 The lid to lug weld strength can be analyzed as follows, assuming a weld I
ef ficiency (a) of
.9, A-36 shear strength (S ) of 21,000, and weld size of 1/2 g
inch:
(.707t)L Ft " "St
(.9 ) (21,000) (.7 07) (.5 ) (2 x (3.75 + 1)]
F
=
g F = 63,470 g
Ma rgin of Saf ety = (63,470/ 61,669) - 1 = +.03 Ratchet Binder Pin Attachments O
The ratchet finde r pin is in double-shear:
(61,669 lbs load) m m
a9 m
m I
E M
H a
Ej>-
a a
$ MGA A RAA;(J N"
O i
l 2-27
NuPac 14D-2.0 Rev. O,1/ 88 i
1 inch dia pin:
A = nr2 = 3.14 x (.5)2 A =.79 in.2 To t al shea r a re a = 2 x.79
= 1.5 8 in.2 l
ASIM A-320 Ul t i ma t e Te n s il e S t re n g t h = 105,000 p si Shear Strength
= a =.6 (105,000 p si)
= 63,000 p si F
= cA capacity
= 63,000(1.5 6)
= 99,540 lbs.
Feapacity Therefore, Margin of Safety = (99,540/61,669) - 1 = +.61 The manuf a cture r's specifications for the ra tchet binder is given in Appendix 2.10.2.
l l
Max. Deflection ptf Pin (Bending) 3 y,,, = F1 /3 EI
= [61,669 (1.5)3]/[3(30 x 10 ))(3(1)4/ 64]
6 6
= [61,669 (3.37) 64]/[3(30 x 10 )(3.1415 9)]
7 8
= (1.33 x 10 )/(2.82 x 10 )
y,,, =.047 in.
% JC-W'
< b j h /,f I = -D O
e4 2-28 j
NuPac 14D-2.0 Rev. O, 1/88 Shield Plug Bolt Analysis The stress in the shield plug bol t s can be determined by the f ol l ow in g analysis, assuming tha t the payload and plug weight totals 14,000 lbs; that there are eight 3/4 inch bolt s restraining the plug; the plug experiences 18.8 g's; and the yield stress of the A-320 bolts is 105,000 psi:
V O
FR = W x g z cose FR = 14,000 x 18.18g x.707 FR = 186,3 73 lbs acting on shield plug Typical root area for 3/4 inch dia, bolts:
2 A = nr2 = 3.14 (.3 75 )2 in 2
A =.442 in I
Load carrying capacity of 8 (shield plug) bolts, equally sharing load:
F, = otyp Ax8 2
2 F, = (105,000 lb/ in )(.442 in )(8)
^
F, = 371,280 lbs.
2-29
_ _ _. - _= -, _ _,, _ _. _... _ _ _ _ _ _ _ _ _ _ - _ _ _, _,
NuPac 14D-2.0 Rev. O, 1/88 Margin of Safety = (371,280/186,37 3) - 1 = +.99 Therefore, it can be saf ely concluded that the package can survive the one foot drop.
2.6.8 Corner Droo The requirement of 10 CFR 71.71(c)(8) is not applicable since the 14D-2.0 ca sk is fabricated of steel and weighs in excess of 110 lbs.
2.6.9 Comoression This requirement is not app l icab l e since the packa ge exceeds 5000 Kg (11,000 lbs).
2.6.10 Pene t ra t ion Impact from the 13 pound rod will have no ef fect on the package.
4 Conclusion From the above analysis, it can be concluded that the NuPac 14D-2.0 ca sk is in l
full compliance with the requirement s se t forth in 10 CFR 71 for Low Specific l
Activity (LSA) packa ging.
2.7 Tivoothe tical Accident Conditions This section is not applicable to the NuPac 14D-2.0, since the cask is not to i
be used to transport greater than Type 'A' quantities that are not classified j
as Low Specific Activity.
2.8 Special Form l
1 This section is not applicable, since no special form is claimed f or the payloads of the NuPac 14D-2.0 t
i l
2-30
NuPa c 14 D-2.0 Rev. O, 1/88 2.9 Fuel Rods This section is not applicable, since fuel is not to be transported within the NuPac 14D-2.0.
2.10 Appendix 2.10.1 Ratchet Binder Mechanical Properties O
O 2-31 i
NuPa c 14 D-2.0 Rev. O, 1/88 j
U A
R6 EXPERTS IN VERTICAL & HORIZONTAL LASHINGS (PATTERSON k y
J i
Other often-used industrialplant and construction ratchets RATCHET BARREL DIMENSIONS l
All ratchet barrels (closed bodies) are made from cold dramti, seamless mechangal steel tubing. A c g f,;' -
c.
mide satiety of strengths are available. depending
- (hf dkyJ.. -
j.'. '.'
on wall thickness, but the following table shows 3
4[. g Nw.r_ h -j _ f,
rj W,2: ' ^-.*,i.
standard barrels.
ah -
.., m. s ~_
%n WW!? 45 h.&g,f #.., b- N;..
'r i
-.s acem v.
e.ae. Os td.-ve 5
,gw.4_/.c W. 4c,..#"'
%c-+7u-S s,...
6i t.
s..w o,
i
.4.
o o
s.,*
t..,
t, e
9 y'_..
i,. n
- m.s 8
e.
1=h ien i.
,,~y-..'
I
~
8 It.
22 000 6 24 4 22
' . '..~ i i.
l,, f 1 8-.
S3 000 624 6 72 l ',.
1s 26, i t g 000 12 3 9M u,
1s 2 's 123 000 12 44 644 f
3%
213 000 l2Je 741
~-
2%
3%
M 000 12h 748 l
s,he by 1,,e ie,,e,,,.m,sese o,id.n...
l ing pages of most-vsed combinations of end fittings. Or on Page A 10 you con make yove o.n porticwtor choice of end liftings by nome.
r - --
o 4
l B
s e
~ % m {.. w.-
j a
i
~m l es -
j i.
E TO DETERMINE RATCHET TAKEUP:
1 =t.20
.hees 1 = telev,(leg +h odeve+ebelety) t - te%+.s 6.nei tsi.e.e) o = o,emese. es we.
W. W. PATTER $0N COMPANY
- 3 Riversea Roads Pittsburgh, Pa.15233
- 412/322 2012 2-32
NuPac 14D-2.0 Rev. O,1/ 88 (APATTERSON k EXPERTS IN VERTICAL & HORIZONTAL L R-7 v
For ordering spare parts...
in which it udl be used plus the type, as follows-1 lle* ey ebolt. left hand, for 24' shackle. type Patterson Steamboat Ratenets are furnished in four ratchet.
standard rated load capacities according to the TO ORDER REPLACE % TENT B ARRELS, indicate eyebolt diameter, and in four standard barrellengths length of barrel in addition to diameter of eyebolt.
according to the take up cesired For mstance-l M* barrel for 1 34 ' ratchet.
Ey ebolt Rated Stand ard TO ORDER A REPLACEMENTPELICAN HOOK Diameter Capaca)
Lengths ASSEMBLY FOR EITHER SH ACKLEOR WELD.
1%*
15 ton 16*, N*.30*,36*
ED LINK 1TPE R ATCHET5, simply indicate 1 'a' 20 ton Same eyebolt diameter, as follows: i. shackle type pelican
! ten Sarne hook assembly for 12.* ratchet.
40 ton Same SPECI AL Dl4%1ETERS AND LENGTHS ARE
%14DE TO ORDER. The ke) in ordering Spare
"'NDL's Parts is the eyebolt dian eter Pe!>can hooks. shackles, siot PitCts bolts. link s, barrels. ratchet
- becit. dogs. and handle PttlCAN Hoot sicerieces are all deterned by the diameter of the F
e y c e.olt -
g eng esteta tina sott TO OR DER A R ATCHET P AR T. Sl%1 PLY N AME
\\
/
{
j[j "H8 Elf Ti1E P ART AND INDICATE T11E SIZE OF THE i
R ATCHET E) EBOLT. For instance. 1 Single
- =n 3
r
-IE I
j) f ong shackle for I Y ratenet.
I
/
/
- k8 TO ORDER AN Ei EBOLT, indicate diameter.
i Sgt 1HACKit and whether left or right hand, length of barrel j
gg EYllOLT WGHT Of LEFTl f
I
- W I *
$b l
l C
I A
-- - g - -e.
D A
d I
\\
I!
l l
TNetADt0 JAW 1' Shea6 Stendeed Jew tad N o.d End Lithmeee
$heas teagme N ees N eet Hele f e Ce ase, fe Ceeee, lheagik D.em.
Mas.=va Ope n.ag Deposi D.em.
01 H ele of Hele N eeded Whos Nmes Whos Whos Whos bu ket Whes Pavads A
0 6
C F
E i
7 si IW W
2%
17.000 s
8 10
'W 1%
'W l
2%
23.000 s.
44 1%
3 1%
1%
7 13.000
's la i%
1%
'W 1%
2%
31.000
's 48 1%
3 1%
1%
7%
32.000 1
14 t sfis 2%
'W 1%
3%
45.000 l
48 i%
3%
1%
1%
4%
43 000 l'i 43 i%
4 1%
1 6/..
9 W 000 l'.
14 lie 2 'W IW 1%
4%
73 000 l 's 43 1%
4%
1%
1%
9%
73.000 1%
20 1%
3 1%
1%
3%
83000 1%
13 2W 2 'W lW 15 %
4 H/.
107.000 18, t$
2%
3 ss l 'W 2
3%
133.000 2
le 2%
3%
2W 2%
6%
185.000 A
2%
is 2%
4W 2W 3%
8 300.000 (O)
- allo CatttD Citvis e00 LNDS "att Jawl CAN 81 SV8Put0 wirM L Atoll f at0A10PINiNGS 2-13
NsPac 14D-2.0 Rev. O, 1/88 O
l 3.0 THERMAL EVALUATION A thermal analysis f or the NuPac 14D-1.0 ca sk has been conducted f or normal transport conditions.
The performance of the packaging under normal conditions of transport is described below.
3.1 Discussion The mechanical features of the packaging have been described in Section 1.2.1.
There are no special thermal protection subsystems or features.
l 1
A very conservative internal heat load of 400 watts has been used to evaluate ca sk t empe ra ture s.
How e v e r, a mu ch l owe r he a t load is used to calculate the di f fe r e nce in temperature be tween the payload centerline and the cask surf ace.
The se loads a re much more re alistic, since they are based on the shielding limit s of the ca sk.
O
{
The external surface of the packa ging is predicted to exhibit a maximum tem-pera ture of 151.2 F assuming no internal decay heat, and 155.20 0
F assuming en i n t e rn a l decay heat of 4 00 wa t t s.
The se ma ximum t empe ra tur e pred ic t ions assume conditions consistent with the Normal Transpor t 'hea t' requir eme nt s, 1
l specifically:
1 l
t Direct Suni f ght per 10 CFR 71.71(c)(1)
Ambient Air a t 100 F Still air The insolation values given in 10 CFR 71 are the total heat absorbed during a 12 hour1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> period eve ry 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />, f or va r ious surf a ce configura t ion s.
It is j
conse rvatively assumed for this analysis that the average solar heat load specified for that 12 hour1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> period is actually present cont inuou s l y, in effect subjecting the cask to double the heat values given in 10 CFR 71 for a given 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> period.
Further conservatism is incorporated in the analysis by l
a s straing the ca sk ba se is an adiabatic boundary (no heat l o s s).
The analysis 1
1 I
3-1
NaPas 14D-2.0 Rev. O, 1/88 al so show s tha t the internal decay hea t (400 wa tt s) raises inside surf ace
\\-
0 temperatures above the external t empe ra t ur e s by l e s s t han 0.3 F.
The results presented in these analyses demonstrate tha t the the rma l e nv i ro n-ment r.nder normal conditions of transport does not have any significant effect on the casks or their payload.
3.2 Samma ry o f The rma l Prope r t ie s 2f Materials Only these basic properties of the ca sk material s were employed in this anal-ysis.
They were obtained from standard handbooks as follows:
Thermal Conductivity Steel 25 BTU / hr.- f t.-
F Le ad 18.6 1
Co nc r e t e 0.8 Asphalt 0.1 Surf ace Emissivity / Absoretivity O
Steel 0.8 3.3 Technical Specifications if Components Not applicable - no special the rmal sub-sy stems.
3.4 Thermal Evaluation [or Normal Conditions gf Transport 3.4.1 Thermal Model As outi lned be l ow, the unknown external ca sk temperature was de termined by solving for the temperature a t which the heat input to the cask system equaled heat output.
Input heat consist s of sol ar flux (insol ation) and internal de cay hea t.
Hea t output consist s of the sum of f re e-convection lo s ses and 0
ratiation losses to a prescribed ambient air sink temperature (100 F maximum and -40 F minimum for normal conditions).
Ilea t los s wa s ' allowed' only over the vertical cylindrical sides and top.
Conv ec t iv e film coef ficients were 1
taken from McAdams empirical values for free convection.
3-2
NePas 14D-2.0 Rev. O, 1/88 O
The analysis to determine cask centerline temperature con se rva t iv e ly assumes that only radial conduction occurs (i.e.,
the source is a s s um e d to be inf init ely long). The decay hea t sources are assumed to be distributed evenly throughout the ca sk interior.
Hot and Cold ambient condition cases are analysed using the f o l l ow in g assumptions:
Hot -
Direct sunlight 0
Amb ie n t air a t 100 F.
Internal heat load, zero and 400 watts Cold -
No sola r hea ting Ambient air at -40 F.
Internal heat load, zero and 400 watts Steady state solutions of the above conditions with maximum heating loads are O
obtained giving con se rva t ive t empera ture predictions.
The simplified geometry used in this analysis is shown below:
b sy,d
.mi
- p.a o!
i 1
44.~ v 1
c W
~
q'
// ////
I 1
r O
3-3
NmPas 14D-2.0 Rev. O, 1/88 External Convective and Radiative Heat Transfer C)g Heat is lost to the sur roundin g s via convective and radiative heat transfer.
No hea t transfer through the ca sk ba se is considered.
Convection 9eony = EA (T,,, g - Tamb)
For free convection, McAdams gives:
3 h = 0.2 9( (Tsurf -Tamb)/L) for vertical cylinders of length L
~
= 0.27((Tsurf -Tamb) /D)0.25 for horz. plates of dia. D Thus:
= ((0.29)(n)DL.75 + (0.27)(0.25)(n)(D.75)](Ts ur f - Tamb)1.25)
O 1
Scony Where:
L = 81.5 in. = 6.79 ft.
D = 81.75 in. = 6.81 ft.
0 Tamb = 100 F = $59.69 R Radiation 1
-T I
4 ad = k(1 s ur f amb r
i 2
Where:
k = (0.1714 x 10~ 8 ) (. 8 ) ( n ( LD +.15 D ) )
= 0.2491 x 10-6
)
Sol a r He a t Loa d Solar loads are calculated using the insolation values given in 10 CFR 71.
It I
is con se rva tively as sumed that the insolation incident on the various surface configurations occur with the same intensity 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> a day as is impl icit in the value given as the total insolation for 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> out of 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.
- Thus, i
the packa5e is assumed to receive twice as much heat as is required by 10 CFR
[
i l
3-4 i
s.
_ _ ~. _,.
~_
NmPac 14D-2.0 Rev. O, 1/88 71.
The heat values given in 10 CFR 71 can be converted to English units as follows:
2 2
Top Surf ace 800 g cr.1/cm 2 950 ITIII/ f t 2
2 Ver tical Proj. Area, Side 400 g cal /cm 1475 BTU /f t These values are total insolation for a 12 hour1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> period.
The vertical surface in s ol a t ion value must be multiplied by the proj e ct ed vertical area (height times diame ter) and both are converted to heat flux, BTU / hr.
q,og,, = (2950/12)(0.2 5) (n) (6.81)2 + (1475/12)(6.81) (6.7 9)
= 14,638 B1U/ hr.
.I l
Internal Heat Load i
qint = 400 watt s = 1365 ITIV/hr.
Steady State Solution O
l In the steady state, the total energy flow is equal to zero:
i L
=0
[
qin 9out l
qin " 9 solar
- 9 nt = 14,638 + 1365 = 16.003 BIV/hr.
1 I
9 out " 9 eo r.v + 9 a d t
((0.29)(n)DL.75 + (0.27)(0.25)(n)(D.75)](Tg-Tg )1.25)
O 1
+
=
f 4
l k(T,,,g4-Tg) i This equation can be sol ved f or Tsurf using iterative techniques for the va rious load ca se s.
The se ca ses are des cribed below:
t I
Load Case 1:
qin = 16003 BTV/hr.
j 2
0
%/
Tamb = 559.6 R (100 F) i b
J-5
NsPas 14D-2.0 Rev. O, 1/88 O
Load Case 2:
qi, = 14638 IIIU/hr.
l Tamb = 559.6 R (100 F) 0 0
J Load Case 3:
i qt,= 1365 ITIU/hr.
0 0
T,3 = 419.6 R (-40 F) i Load Case 4:
j l
qin = 0 IIIU/hr.
l f
0 0
Tamb = 419.6 R (-40 F) h l
J 0
l Load ca se 4 is trivial, resul ting in a ca sk surf ace temperature of -40 F.
The remaining load cases may be solved to get the foll owing T,,,g values:
qO Load case 1:
T,,,f = 155.2 F j
0 Load case 2:
T,,,f = 151.2 F j
Load case 3:
T,, f = -2 9. 8 F 0
t
]
Conductive flest Transfer E"aluation f
The following simpi t fied model was useJ to estimate the temperature dif feren-I tial be tween the inside and out side of the 14D-2.0 ca sk:
l falO W
1 lO i
4 l
l 3-6 1
l
j.
I NsFco 14D-2.0 Rev. O, 1/88
^
l
!O 11d,,gg)/(R11d + R,,gg)
R,gg = (R R
l R,,gg = Router + RPb + R,,,,
g R = t/kA i
i Foe the lid:
P i
t = 4,0 in. =.333 f t, i
k = 25 BTU /hr-f t OF A = 0.25n(6.81)2 = 36.42 f t.2 11d = 3.66 x 10'4 hr.- F/ BTU f
R i
For the inner steel shell:
i I
4 t=
.375 in. = 0313 f t.
k = 25 BfU/hr-f t OF A = n(6.81 - 2(1.75 +.375 +.875) /12)6.79 = 134.6 f t.2 ino,, = 9.3 0 x 10-6 hr. OF/BIU R
j t
For the outer steel shell:
i I
4 t=.875 in. =.0729 f t.
a k = 25 EIV/ hr-f t OF A = n(6.81)(6.79) = 14 5. 3 f t. 2 4
ou t e r = 2.01 x 10-5 hr. OF/B1U R
i.
For the lead:
i l
R = in(r /rg)/2nkL o
l
]
r, = 6.81/2 = 3.405 f t.
j r3 = 6.31/2 = 3.155 ft.
k = 18.6 BTU /hr-f t-F l
L = 6.79 ft.
Pb = 9.61 x 10-5 hr. OF/BIU jv R
3-7
_ ___,..l
NuPa 3 14 D-2.0 R;v. O, 1/88
~(
')
- j Therefore
P,11 = (. 9 3 + 2. 01 + 9. 61) 10-5 = 1. 2 5 x 10-4 hr. - F/ BIU g
R,g g = ((3.66) (1.2 5)10-8) / ( (3.66 + 1.25)10-4 ) = 9.3 2 x 10-5 hr. OF/ BTU Since dT = qR,gg, dT = 1365 (9.3 2 x 10-5 ) = 0.1270 F Ca sk Pavload Cent erline Tempe rature Ma ximum de cay heat loadt a re give n bel ow ba sed on a ' worst ca se' pay load of Ce slum-13 7 s ol idif ie d in concre t e.
The other payload isotope of int erest, Coba l t-6 0, is shielding limited to much lower Curie level s and this is not (3
con sidered here. The total activity is limited by the shielding capability of e ach ca sk, a s suming a 10 mR/ hr do se ra t e a t 6 f e e t f rom t he side of the ca sk.
Maximum Decay Heat Loads 3
Specific Activity, pCi/cm 147 3
Ca sk Volume, m 5.38 Total Activity. Curie s 791 To t al He a t, wa t t s (=.0048 w/Ci for CsI37) 3.8 Decay Heat Limit, watts 7.0 3
.125 BTU / h r-f t The decay heat limit is roughly twice the calculated decay heat to ensure that loading of the cask is governed by shielding considerations and to give added conse rva tism to the ce nterline t empe ratures ca l cul ated bel ow.
The temperature at the ce nt e r of the cask can be calculated if it is j
[]
conservatively asstrued that the heat flow is entirely radial. The problem can then be treated as a long ci rc ula r cylinder with unif ormly distributed heat 3-8
NaPa] 14D-2.0 Rev. O, 1/88 sources (page 53, Erie th, Principles of Ilent Transfer, 3rd edition.)
^(ij)
The maximum temperature is given as:
2 f4g T=To + gro Where:
T = Outer source surf ace temperature (OF) o radius of source (3.15 ft) r =
n conductivity of source material (ImJ/hr.-f t. 0F) k
=
.8 for concrete solidification
=
.1 for asphalt sol idifica t ion
=
Using the se values:
(.125) (3.15)2 ((4) (.0) =T
+ 0.39 for concrete, and
/
T=T +
o o
T, + (.12 5 ) (3.15)2 ( (4) (.1)
/
=T
+ 3.10 for asphalt o
o The ce nterline tempe rature increase for a solidified source is very small.
The a spha l t temperature increase is eight time s as large as the concrete temperature incr e a se, but are still insignificant.
Al so, the activity level pr..umed f or this analysis would be dif f ic ul t to attain for asphalt in practice, since the asphalt's lower sel f-shielding would prevent the ca sk from mee ting e xternal do se rate limit s.
3.4.2 Ma ximum Tempe ra t ure <,
The f ollowing table present s the temperatures predicted by the analysis pre se nted in Section 3.4.1 for Load Cases 1 and 2,
where the amb ie n t 0
temperature is taken to be 100 F:
location Case L Case 2 Cast Out side Surf ace 1 55.2 F 151,2 F Cask Inner Surface 155.3 F 151.3 F A
Payload Centerline Concrete 155.7 F
151.7 F 3-9
.~.. - _
NmPac 14D-2.0 Rev. O. 1/88 0
0 Asphalt 158.4 F 154.4 F l
3.4.3 Minimum Temperatures The following tabli presents the temperatures predicted by the analysis pre se nt ed in Sec t ic a 3.4.1 for Load Cases 3 and 4,
where the ambisnt 0
temperature is taken to be -40 F:
i r
_ Location Case 1
,Cate 1 0
0 Cask Oatside Surf ace
-29.8 F
-40.0 F
0 0 F
-40.0 F
Cask Inner Surface
-2).7 Payload Centerline 0
0 Concrete
-29.3 F
-40.0 F
Asphalt
-26.6 F
-40.0 F
l 0
0 l
r f
3.4.4 Maximum Internal Pre ssures 0
Assume the ca sk contain s wa ter whe n I caded a t 70 F.
Unde r the worst ca se t
thermal conditions e xamined above, the highest tempera ture on the inside 0
l surface of the ca sk was determined to be 155.3 F,
which woul d f orm the J
]
conden sa t ion surf a ce.
The internal pressure would be, as suming sa tura ted air,
(
would be:
l Partial pressures of water and air at 70 F are:
0 J
P,po, *.3 6 p sia y
P,g,
= 14.7
.3 6 = 14.34 p sia r
Partial pressures of water and air at 156 F are:
I P,p,, = 4.31 psia y
P
= 14.34(156 + 460) /(70 +460) = 16.67 psia air P = 4.31 + 16.67 - 14.7 = 6.28 p sig O
1 t
d 3-10
NsPao 14D-2.0 Rev. O, 1/88 l
This pressure is le ss than the pressure already analyzed in Section 2.6.3, O
Reduced External Pressure.
The pressure evaluated there was 11.2 psig.
i 3.4.5 Maximum Ihermal Stresses The temperature distributions given in Section 3.4.2 and Section 3.4.3 above will not generate signif ic ant dif ferential thermal e xpan sion stresses.
The i
Reduced Ext ernal Pressure requirement is more severe than the increased inter-nal pressure induced by the worst-ca se t empe ra ture predictions.
Therefore, no normal condition thermal stresses will be more severe than those presented for other normal conditions.
3.4.6 Evatustion of Packste Performance Lol Normal Conditions,q[ Transnort b
As a result of the above a s ses sme nt, it is concluded tha t under normal conditions of tran. port:
4 1.
There will be no release of radioactive material from the contain-i ment vessel; 2
i 2.
The ef fectiveness of the packa geing will not be s ub s t a n t i al l y i
reduced; i
3.
There will be no mixture of ga se s of vapors in the packa ge which j
t could, through any credible incre a se in pressure or an e xplo sion, significantly reduce the effectiveness of the package, i
f I
4 9
d 3.5 IIvoothetical Thermal Accident Evaluation l
1 i
]
The hypothetical accident evaluation is not required f or Type
'A' or Low Specific Activity packages, and this section is theref ore not appilcable to i
3 the NuPac 14D-2.0 ce sk.
!!O 3
4 3-11 I
j 1
NuPa c 14D-2.0 Rev. O, 1/88 i
4.0 CONTAINMENT 4.1 Containment Boundary j
4.1.1 Containment Ve ssel I
I The containme nt vessel c l a ime d f or t h e NuPa c 14D-2.0 c a sk i s the inner shell l
of the shiel ded transporta t ion ca sk a s de s cribed in Se c t ion 1.2.1 and the f
ge neral arrangement drawing in Section 1.3.1.
l t
i 1
l 4.1.2 Containment Penetration i
4 An optional drain line is included in the design as de scribed in Section 1.2.1.
It is scaled with a 1/2 inch NPT pipe plug.
i Se al s Lad Weld s 4.1.3 n
i
+
Two neoprene seal s are used to seal the cask lids.
The first is attached to the prima ry lid and seal s the prima ry lid-ca sk body interf ace.
The second is I
al so attached to the primary lid, but se al s the seconda ry lid primary lid interface, as described in Section 1.2.1 above.
All joints are welded.
4
)
i I
I The integrity of the seals is demonstrated using a soap bubble link test done l
according to NuPac Procedure No. LT-04, ' General Procedure for Soap Bubble (Low Pr es sur e) Leak Test.
t il 4.1.4 Closure 3
i The closure dev ice s for the primary lid consist of eight Patterson Ratchet binders and eight 3/4-10 UNC A320 s tuds (any L grade) and nut s to close the y
]
se conda ry lid.
l i
4.2 Reautrement s for Normal,Condit ions pl Transoort 1
I l
The following is an as ses sment of the packa ge containment under normal conditions of transport as a result of the analysis performed in chapters 2.0 i
4-1
l NnPac 14D-2.0 Rev. O, 1/88 a nd 3.0 above.
In summa ry the cont ainment ves sel was not affected by the test s analyzed in those chapters.
t 4.2.1 Containment g Radioactive Material e
4.2.2 Pressurization d Containment Vessel l
i i
4.2.3 Containment Criterion j
4.3 Containment Reautrements for Hvoothetical Accident Conditions This section is not applicable for Type 'A' and Low Specific Activity pack-l a ge s.
i i
4.4 Special Reautrement s This section is not applicable, since the NuPac 14D-2.0 is not intended to i
t ransPort plutonium, t
i t
4 l
v i
O 4-2
l I
i t
NuPac 14D-2.0 Rev. O, 1/88
{
L i
5.0 SHIEt.DIW EVALUATION
]
5.1 Discussion and Result s t
The NuPac 14D-2.0 cask consist s of a lead and steel cont a inme nt vessel which l
prov ide s the nece ssary shielding for the various radioactive materials to be l
[
shipped within the package.
(Refer to Sect ion 1.2.3 f or packaging cont e nt s.)
l Test s and analysis performed and presented in Chapters 2.0 and 3.0 above have j
demonstrated the ability of the containment vessel to maintain it s sh iel ding l
integrity unde r normal conditions of transport.
Prior to e ach shipment, j
radiation readings will be taken ba sed on indiv idual loadings to assure
}
compliance with applicable regulations.
l t
I i
t i
!O 1
a 1
I i
i i
l 4
1 a'
i t
1 i
i i
4 t
t I
i i
i f
I L
O A
I a
1 5-1
NuPac 14D-2.0 Rev. O, 1/88 6.0 CRITICALITY EVAL,UATION This section is not applicable to the NuPac 14D-2.0, sir.ce the cask will not be used to transport non-exempt quantities of fissile materials, i
O l
i I
i 1
4 l
1 J
l l
I i O i
6-1 t
0 NuPas 14D-2.0 Rsv. O, 1/88 7.0 OPERATING PROCEDURES O
This chapter describe s in general terms the procedures to be followed in using a NuPac 14D-2.0 ca sk.
Any mainte nance activ ity, such as inspections, l ubric a-J tion, gasket repl aceme nt/ r epa i r, repaint, etc. described in this section are described in more detail in Se c tion 8.2, General Maintenance Program.
7.1 Initial Shinsent Prior g First M,1ee 7.1.1 The cask shall be mounted to the transportation trailer as follows:
If the transportation trailer is the permanent unit, the cask shall a.
be secured in a c c o r d r.u ce with Se c t ion 7.4.7 of this procedure utilizing a DOT approved hold down system.
I-I
- b. If the transportation trailer is for initial delivery only, the cask shall be secured utilizing standard chain and chain binders normally utilized for heavy loads.
The chains shall be secured to the cask O
hold down lugs.
1
+
d 7.2 Lon a-Te rm St o ra no 3
1 7.2.1 The ca sks can be stored f or an e xtended period (1 to 3 years) with minimal special preservation. The following precautions should be t a ke n :
j n.
Ratchet binders and all f asteners should be fully coated with a good quality ' automotive chassis' grease.
i
- b. To maintain original sur f a ce gloss, the entire cask painted surf ace i
may be coated with 2 to 3 layers of any good quality automotive finish wax.
The last coat should be allowed to dry without being 4
polished.
i O
)
7-1
. NaPas 14 D-2.0 Rev. O, 1/88 i
- c. If required, the cask finish can be f urther protected f rom ha rsh l
j l
salt spray or chemical s by covering with tarps or storing under l
other suitable cover.
I r
i 7.2.2 To maintain the original sur f ace 61oss or finish. the interior cav ity, painted or stainless steel, may be was coated as described in 7.2.1.b.
5 f
I 7.2.3 The cask can be prepared for use by standard steam cleaning methods
)
after st ora ge.
Ra t che t binde r threads should be re greased with good f
grade automotive chassis lubricant af ter steam cleaning.
l 1
1 7.3 Liftinz 4
7.3.1 The cask shall always be lif ted by the four (4) prov ided lif ting lugs -
only.
The lifting lugr are the vertically oriented lugs on the sides 0
of the casks spaced at 90 a round the ca sk circumfe rence, i
l i
i a
4 7.3.2. All other lif ting lugs on the prima ry and seconda ry lids shall only be t
s i
used to lif t the lid they are attached to.
I 6
.)
4 7.4 Use of the Cask al a Licensed Type A 2r LSA Container i
I i
j 7.4.1 Removal of the Primary Lid s.
Release the ratchet binder handle from its storage position.
i
{
b.
En ga ge the flip block to the sprocke t wheel in the direction necessary to
}
loosen the ratchet binder. ( se e Figur e 7.4.1-1) i l
c.
Loo se n the ratchet binder by pulling the handle in the appropriate direction.
1 d.
Remove the retaining pin from the upper ratchet binder pin and then I
remove the ra tchet binder pin.
j A
-l I
7-2
NaPac 14D-2.0 Rey, 0, 1/88
(]
Figure 7.4,1-1
~J
\\
\\
k
\\
N
/
CASK LID BALL
()
,e LOCY. FIN
's>
0u0 PIN y
/
LID CLOSURE LUG UPPER PACHET BINDER HANDLE STORAGE POS!!!ON
!_ \\ \\
,m
...,=w,m,,,
M-7 EEEE Er~*"EE '- -
y J
- = = - - -
g=
- ._=--:._
\\
l FLIP BLOCK
,/~N
\\
i
'% --l 7-3
=_
NmPas 14D-2.0 Rev. O, 1/88 1
i e.
Removo the threee (3) prima ry ca sk lid lif ting lug covers, f.
Using the three (3) prima ry lifting lugs on the cask lid to accommodate 1
suitable rigging and exercising caution in the handling of the prima ry cask lid due to possible contamination of the underside of the lid, remove cask lid.
7.4.2 Removal 21 Secondary Lid a.
Remove the seconda ry lid holddown f astene rs, b.
Remove the secondary lid lif ting lug cover (s).
Exercising caution due to possible contmaination of the underside of the c.
shleiding plug, remove the shield plug.
t 7.4.3 Installation of Primary 1 4 r
J O
a.
Prior to installation, inspect ga ske t for the following:
1.
Ga ske t fully sec ured to lid se aling surf ace s.
2.
Gasket not cut, ripped or gouged.
3.
Ga ske t is re silient.
4.
Gasket is free of debris, dirt and/or grease.
b.
Using the three (3) lifting lugs on the prima ry lid to accommodate suitable rigging, lif t and place lid on cask using alignment guides to as sure pro pe r po sitioning. Take care not to dama ge gasket.
c.
Se c ur e th e pr ima ry l id to th e ca sk a s f ol l ow s :
1.
Install the upper ratchet binder pin through the upper ratchet binder connector and the lid closure lug and install its retaining pin.
O i
1 7-4 l
I
NaPac 14D-2.0 Rev. O,1/ 88
[V 2.
Ti g ht e n the ratchet binder by engaging the flip b l ock to the sprocke t wheel and rotate the ratchet binder handle in the direction neces sa ry to tighten the ra tche t binder. Tighten to 100110 f t-lbs torque.
3.
Diseagage the flip block and rotate and secure the handle to it s stora ge po sit ion.
4.
Install the three (3) primary ca sk lid lif ting covers.
7.4.4 Installa t ion of Seconda ry Lid a.
Prior to in s t alla tion, inspect ga ske t for the following:
1.
Ga ske t fully secured to lid sealing surface.
2.
Gasket not cut, ripped or gouged.
3.
Ga ske t is re silient
()
4.
Ga ske t is free of debris, dirt and/or grease.
(/'
b.
Using the lif ting lug on the se conda ry l id t o ac c ommo da t e suitable rig-ging, lift and place lid into the opening on the primary lid.
Use a l i g nme n t pin s t o as s ure pro pe r po sit ioning.
Take ca re no t to damage ga ske t,
c.
Se c ur e the se c onda ry lid by installing end t i ght e ni n g the f a s t e ne r s to 100 110 ft-lbs torque.
d.
Install the seconda ry lid lif ting lug cover, i
l 7.4.5 Ca sk Loadinz
)
a.
Survey empty ca sk and the vehicle ca rrying it to determine the loose and f ixed cont amina t ion l ev el s.
Limita t ions pert aining to cont amina tion level s shall bs de te rmined by regulations imposed on the use r by the f
()T applicable governing bodies.
(_
7-5
1 NmPac 14D-2.0 Rev. O, 1/88 o
I
/"'i b.
Ins pe c t cask lid fasteners to assure all are present and undama ged.
\\s,/
t Check to assare that cask lid (primary and secondary) lifting lug covers i
c.
are with the cask.
d.
Remove primary lid in accordance with Section 7.4.1, if required.
t Remove seconda ry lid in accordance with Section 7.4.2, if required.
e.
f.
Inspect seconda ry lid holddown studs for damage, if seconda ry 11d was removed.
If studs are damaged, replace them.
I g.
Inspect interior of cask for standing water.
t NOTE: Water must be removed prior to shipment ( see Section 7.5).
j i
i h.
Inspect interior of cask for obstructions to loading.
{
. ()
i.
Inspect interior of ca sk for defects which might affect the cask integrity or shielding afforded by the cash.
i I
J.
If loading drnas on 7 drum pallet s, proceed as followst
[
1.
Load seven (7) drum s on each pallet (see Figure 7.4.5-1 for ge neral f
J l
4 placement on palle t).
t t
t i
)
]
2.
Place drums within guides prov ided on the pallet deck to facilitate i
proper orienta tion.
f 3.
For ma ximum shiel ding, load higher dose rate drums in the center po sition and the po sitions toward the front and rear of the trailer.
4.
The lif ting sling remains attached to the pallet at all times.
s I
l l
J l
l 7-6 8
r r
4 NsPas 14D-2.0 Rev. O, 1/88 Figure 7.4.5-1 O
I i
1 1
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0 l
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11 f
I g
'i w
L
/l i
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4O n3 i!O a
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i:=
[qk k
lN L..
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14 Dru.m Pallet Loading (Typical Contiguration) j 4
I k
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l 4
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l 4
4 1
4 l
lO i
1 i
]
7-7
~ -
~.
I NaPas 14D-2.0
'Roy. O, 1/88 By loading the center drum first and then three drugs on one side, O
the sling can be placed over the loaded drums while the remaining i
three are loaded.
This technique prevents damage to the sling.
i 6.
The sling assembly should be placed around the drums in such a way to prevent damage to the sling.
4 e
i 7.
The sling assembly should be inspected at each loading for dama ge I
and general-condition.
J 8.
Place loaded pallet into ca sk, assaring that pallet slings are not caught along side or under the pallet.
I 9.
Place sling around or along side drums to prevent pinching or damage to the sling by the lids or second/ top pallet in the cask of the 14 drum ca sk.
[
t i
10.
Load a second pallet in the same manner described in #1 through #9.
O 11.
Inspect lid and ga sket s, and install cask lids, securing a s de-i scribed in Section 7.4.3 f or the primary lid and Section 7.4.4 for j
i the seconda ry lid.
l 12.
Install t ampe r-indi c a t in g seal s on the primary and seconda ry lids, 1
a s well as the drain,1f the se se al s were broken, r
1 t
k.
If loading preloaded liners, proceed as follows:
l 3
i l
1.
If ne c e s sa ry, the cask may be removed from the trailer in accordance I
I with Section 7.4.6.
j t
s j
2.
Assure all lids, plugs or caps are installed on liner.
4 3.
Using the lif ting slings provided, place liner into the cask.
[
F 4
i
[
k 7-8 j
4 NmPeo 14D-2.0 Rev. O, 1/88 4.
Install shims / shoring be twee n liner and ca sk as necessa ry to secure in position.
e I
5.
Inspect lid ga ske t s, and install ca sk t ids, securing as described in Section 7.4.3 f or the prima ry lid and Sect ion 7.4.4 f or the second-j t
j a ry lid, 1
f 6.
In s t al l t ampe r-indica t ing seal s on the primary and secondary lids, I
l as well as the drain, if the se se als were broken.
j i
1 1.
If loading into liner inside cask, proceed as follows:
1.
If ne ce s sa ry, the cask may be removed from the trailer in accordance i
with Section 7.4.6.
I I
l 2.
Using the slings provided, place liner in the cask.
r 3.
Install shims / shoring be tween liner and ca sk as necessa ry to secure f O in position.
4.
Inspect ga ske t s, install and secure primary lid as described in Sec tion 7.4.3.
t i
5.
Do not install seconda ry lid at this time.
1 b
?
}
6.
Load the waste into the liner through the seconda ry lid opening.
t i
7.
Install the liner lid, plugs, or caps onto the liner.
t 8.
Inspect ga sket s, and then inst all and secure se conda ry lid as de-7 t
s cr ibe d in Se ct ion 7.4.4.
9 In s t al l t am pe r-indi ca t i n g seal s on the prima ry and asconda ry lids, as well as the drain, if the se se al s were broken, l
7-9 1
i
-, _. - - - _ - - -. - ~, _, -.,
.. _ ~
m
,__e
nap;] 14 D-2. 0 Rev 0, 1/88 p
7.4.6 Cask Removal fr_qs Trailer v
a.
Loosen tiedown ratchet binde rs/ turnbuckles as nece ssary to remove pins f r om shackles at cask end of t ie d ow n sy s t e m.
b.
Remove pins f rom sh ackl e s, c.
Using the four (4) cask lif ting lugs and suitable rigging, lif t cask of f trailer and place ca st in proper po sition for loading.
NOTE:
Do not use cask lid lif ting lugs to lif t the cask.
7.4.7 Cask Installation og Trailer a.
Using the f our (4) ca sk lif t lugs and suitable rigging, lif t ca sk and place cask in proper po sition within the shea r blocks prov ided on the trailer.
f-)
V NOTE: Do not use cask lid lif ting lugs to lift the ca sk.
b.
In s pe c t tiedown lugs and shackles on cask and trailer for cracks and wear which would af fect their strength, c.
Inspect tiedown cable s to assure they are not loose or damaged (crimped, fr ayed, e tc.).
d.
Inspect tiedown ratchet s/ turnbuckles to assure they are in proper working condition.
e.
Install shackles through the end of the tiedown cables and attach to cark tiedown lugs by screwing pin through shackle and hole in lug.
f.
Tighten ratchet bi nde r/ t urnbuckl e s as ne c e s a a ry to secure cast on
- trailer, 7-'s d
7-10
NsPas 14D-2.0 Rev. O.1/ 88 7.4.8 Preoarat ton sti li1k isti }Al25111 u Tr.ns. A str 146 Container a.
Perform radiation surveys of cask and vehicle and complete the necessary shipping pape rs, certification, and pre-release checklist, or site equivalent.
l b.
Placard vehicle and label cask aa necessary.
7.4.9 Receivina a les(id E nk The receiver, ca rrie r and shippe r are to follow the instructions of 10 CFR 20,205 when a package is delivered. The se instructions include monitoring the e xt e rnal surf ace of the cask for radioactive contamination.
7.5 Removal f!1 I,lauld II5!E Calk 7
)
Any standing water in the cask must be removed prior to shipment.
This is to be accomplished using the drain in the cask base.
To drain the cask, unscrew t'ne drain plus and allow the water to drain out of the cask.
If significant te sidue remains in the cask, the cask should be flushed to remove it.
Seal the cask by installing the plus coated with sealing compound.
Tighten to 20 f t-lbs torque.
l Removal of water f rom a ca sk without a drain is to be done using a hose and suction pump or a sump pump with a primed pickup tube.
Care must be taken to insure that the suction nostles are designed to remove all the standing water.
l Tilting the cask slightly may also aid the process.
Again, flush water may be l
required to assured adequate cleanliness of the internal surfacc.
Final drying out may be achieved with a wet / dry v a c u um cleaner and/or absorbent cloth.
O 7-11
NsPaa 14D-2.0 Rev. O. 1/88 7.6 Containment Penetration Esh O
G In st al la t ion of pipe plugs used to se al the pressure tap line and th. drain line is to be done using a pipe j oint se allag compound.
Plugs are to be tightened to 20 f t-lbs torque.
O i
i O
7-12
=. _ _.._.
_. _ _ _ - ~ _ _ _. _. _ _ _ _.
1 l
l NsPas 14D-2.0 Rev. O. 1/88 f
i
'I 8.0 ACCEL'TANCE TESTS M MAINTENANCE 1
8.1 Accentance Tests t
i l
1 j
Prior to the first use of the cask. the tests and evaluations called out on l
?
t l
the General Arrangement Drawing (Appendix 1.3.1) will be performed.
l t
1 In addition. shielding integrity of the package will be verified using gamma f
scan procedures called out in NuPac Procedure Nos. GS-001 and GS-002 (ses Appe ndi x 8.3).
Se al integrity will be demonstrated by Soap Bubble leak test
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)
following NuPac Procedure No. LT-04 ( Appe ndix 8.4).
l a
I 8.2 Maintenance Pronras 1
General maintenance program requirements are listed in this section. De t ail ed maintenance programs must be developed by the end user of the cask.
These i
j programs will reflect the spe cif ic opera ting conditions. limitat ions and regulatory requirements pertaining to the user.
I I
i General mainte nance requirement s f ollow t l
i PAINTED SURFACES:
A.
Painted surf ace s may be steam or pressurized hot water cleaned using j
st anda rd comme rcial equipme nt. chemical solutions and procedures.
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No special precautions a re required.
I B.
Chipped or scratched surf aces shall be repainted as followst l
J j
1.
Remove any rust or loose cop tings and sand edge s so they f air
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into sound coating.
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I 1
2.
Prime ba re surf ace s with a good comme rcial quality red oxide l
l' primer.
j j
O j
l 8-1
NaPac 14D-2.0 Rev. O,1/ 88
(~S.
3.
Recoa t with Mobil Chem 89W9 or Tenemec 66-2000 epo xy.
NOTE:
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These coating nusbe rs de si gna t e a white color and paint brands which are the standard NuPac color and paint system.
If the user has ordered another color or paint system, that shall be used for the recoat as appropria te.
4.
Dulled or oxidized finishes may be restored v is the use of normal autonotive finish polishers and waxes if desired.
5.
Guide stripes shall be repainted when they are chipped. pealed off, faded or not l e gib l e.
Standard commercial bright orange ma ch ine ry e name l is used to paint these stripes. Only local sanding and cleaning is required prior to repainting of the guide strip.
II.
GASEETS rS A.
Gaskets shall be inspected f or resiliency and complete adhesion to I
the prima ry lid surfaces prior to each cask loading.
B.
Gasket s that are intact, but not adhered to the primary lid shall be re at t ached a s f ollow s :
1.
Ge ntl y pul l ga ste t away f rom it s normally secured location un t il it cannot be removed f urther without dama ging the gasket.
2.
Remov e residual sdhesive to the ga ske t and primary lid surf ace and rej oin in accordance with the adhesive manuf acturer.
3.
Re appl y ga ske t adhesive to the ga ske t and prima ry lid surf ace and rej oin in accordance with the adhe sive manuf acturer.
/~'s N~-]
j 8-2
NsPac 14D-2.0 Rev. O, 1/88 C.
Ga miwt a which c anno t be se al ed or a re obv iou sly dama god mu st be
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replaced in their entirety. Damage may include cuts, nicks, c h ip s, indenta t ions, or any o ther de fect apparent to the naked eye which would af fect sealing integrity.
Remov a l of the ga ske t, preparation of the lid surfaces, adhesive use and gaske t installation shall be performed per step II.B.2 and 3 above.
D.
All gasket s shall be replaced once a yea r minimum re gardl es s of apparent condition or cask usage.
E.
Anf painted surface in contact with the gasket must be maintained in good co ndi t ion. Any loose, chipped, or scratched painted surf ace must be repaired in accordance with I.B.1-3 prior to f urther ca st u se.
III. WELDS
(T A.
All welds have been completely checked in accordance with ASME Code
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requirement s via visual, magnetic particle and radiographic methods during fabrication.
The Ge ne ra l Arrangement Drawing (Appe ndix 1.3.1) de l ine a t e s the se inspections.
I n-u se inspections should not be required unless the cask has been involved in an accident or has been lif ted imprope rly or in an ov e rl oa ded condit ion.
In tho se ca se s, inspection shall include the following:
1.
Drop or accident:
all acces sible cask body and lug welds and primary lid ratchet binder lug welds shall be magnetic particle inspected in accordance with ASME Code Section III, Division I, Subsection NB, Article NB-5000 and Section V, Article 7.
The s e inspections may be performed with the painted finish in place, if required.
2.
Improper or overloaded lif t: All welds on the cask, primary or se conda ry, lid which were in use at the time of the improper or overload lif t shall be Ma gnetic Pa rticl e inspect ed per the
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requirement s delineated in III. A.1, above.
'~,
8-3
nap;c 14D-2.0 Rev. O, 1/88 i
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B.
Whe neve r the ca sk require: total repaint and is sandblasted, all we l d s sha l l be v is ua l l y in spe c t ed pe r AW S D1.1 Pa ra. 8.15 or ASME Code Se c t ion III, Div i s ion I, Sub se c t ion NB, Ar t ic l e NB-5 000 a nd Section V, Article 9.
Suspect welds may then be Ma gnetic Pa r':icl e inspected per IV. A.1, above.
C.
Any wel d repairs shall be pe rformed utilizing wel d procedures and w e l de r s qu a l if ie d f o r A-516 t o A-514 a nd/ o r A-516 t o A-516 w e l dme nt s in accordance with ASME Code Section IX requirement s.
IV.
FASTENERS A.
All f a s t e ne rs shall be inspected af ter each use and replaced if the f ollowing conditions a re pre sent:
1.
Deforned or stripped threads.
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2.
Cracked or def ormed hezes on bolt heads or nuts.
3.
Elongated or scored grip length area on bolt s or studs.
l 4.
Severe rusting or corro sion pitting.
B.
In ge ne ral, all f a st eners shall be inspect ed f or damage at le ast once a yea r under normal usage conditions and replaced when the conditions delineated in IV A.1 through 4 are present.
C.
Lanya rds are provided to secure loose f a ste ne r s.
This a s sure s usa ge of the correct fasteners in the v a rious l oca tions. Any f rayed or broke n l anya rd must be replaced prior to the no at cask use.
NOTE:
Actual r epl aceme nt f r eq ue nc y should be established by the user utilizing mainte nance bistory and inspection results based on the replacement crit eria list ed in IV. A.1,2,3, and 4, above.
7-s b
8-4
NsPac 14D-2.0 Rev. O, 1/88 7S D.
All f asteners munt be inspected f or the presenee of t ubricant and U
thread cl e anl ine s s prior to each use.
Any fastener without lubricant, or that is dir ty, shall be cleaned and relubricated.
The specific lubricant and quantity utilized shall be determiced by the u se r.
V.
RATCHET BINDERS A.
The ratchet binders are designed for long use with minimal maintenance. Inspect f or operation and ge neral condition bef ore each use.
Conditions list ed in V.C.1-3 a re to be ide ntified and corrected.
D Lubrica tion is required very inf reque ntl y and can be achiey ed by applying a ge ne rou s quantity of s t a n da rd chassis lubricant to the binde r threads.
A good indication of the need to lubricate the ratchet binder will be dry thread on the j oining bolt or hard opera-
- tion, u
C.
Any ratchet binde r which received impact or suspected overloading in an ac cide nt must be completely disassembled and inspected or r epl a c e d.
Cause for rej ection during a damage inspection shall incluce:
1.
Cracks in the j aw s or joining bolt.
2.
Def orma tion of the j aws or j oining bolt.
3.
Excessive rust or corrosion pitting in the threads of the jaw or j oining bolt.
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<~x l
8-5
l I
f l
NsPao 14D-2.0 Rev. O. 1/88 l
I APPENDIX L,j, DISCUSSION DE CAMMA 3GN PROCFDURE j
Lead shielding integrity shall be confirmed via sensa scanning. Here are two l
samma scan techniques utilized. he main dif ference is in the nethod utilised
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to determine acceptance criteria.
(
l Both g&ama scan techniques are exactly the same in all other respect s and are f
1 i
conducted a s f ollow s.
An Eberline E120 probe or equivalent is used to scan the outer surf ace of the cask while an Iridium 192 or Cobal t 60 source of sufficient strength is t
)
present in the ce nter of the ca sk. The source is first placed on the botton I
of the cask while the surf ace is scanned around it s circumference parallel to the source.
The source is then moved up a predetermined distance and the f
i j
circ umfe re nce scanned a gain.
This sequence is repeated until the entire cask l
i surface is scanned.
f For these tests, a 4 luch grid is drawn on the cask surf ace and a chart is
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made to reflect the gridded ca sk surf ace.
The readings obtained in the cask i
k grid as described above are recorded in the corresponding grid on the chart.
I This da t a the n se rves a s the raw gamma scan result s.
All readings are in
(
l Milliroentge ns (MR).
a
}
The readings are evaluated by comparing them to predeteraired MR values for normal, or as designed, lead thickness and nceinal - 10% lead thickness.
I i
i The two dif ferent methods utilized to determine acceptance criteria are l
l discus sed below.
i I
4 i
O 8-6
-. - -. _.. _~
i I
f, MsPee 14D-2.0 Rev. O, 1/88 i
i The 1.aboratory Calibration Method (NuPac Procedure 05-001) ut!!!ses two test f
blocks which simul ate the ca sk wall.
The blocks are made up of lead and steel. The first has a lead thickness equal to the cask as-designed lead I
i th ickne s s.
The se cond ha s 10% l e s s l e ad thickne s s.
The source is placed a j
j cittance away f rom one surf ace of the test block which equals the inside radius of the ca sk.
The probe is placed on the opposite side of the test block and readings are taken. This procedure is then repeated f or the -10%
l j
l ten : block.
j i
I 2
i Ac cept anc e criteria is determined by averaging the dose readings of the as-l de si gned and -10% t e st bl ocks. This is then multiplied by the increa se in j
dose expected due to -10% shield (the ratio of the -10% reading to the as-l
~
designed readings). This is the maximum reading allowed on the surf ace of the l
t s
j ca sk be ing inspect ed.
The average of the acminal and -10% readings is used to i
l account f or dif ferences in geome try be tween the calibration test and the cask j
i j
acceptance test.
l The Field Calibration Method (NuPac Procedure 0S-002) utt11:ss a specially j
f abricated test lid which incorporates a holder for various lead and steel l
l shee t thickne s se s.
This fixture is installed onto the ca sk to be scanned.
i The test lid is then set below the tet t lid in the cask at a distance equal to I
i i
the inside radius of the cask.
Readings are then taken.
The test lid is then set up to recreate the -10% lead thickness configuration, and readings are l
]
again t a k e n.
Other readings are then taken in 1/8 inch lead thickness increment s be tween and beyond the two ba se readings until four to eight readia:s are obtained. The data is then plotted on a chart of readings versus le ad thicknes s.
The value f or nominal lead -10% is then utilized as the maximum acceptable reading during the actual samma scan.
l i
1 4
)
4 i
s-7 i
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