ML20148B158
| ML20148B158 | |
| Person / Time | |
|---|---|
| Site: | 07109079 |
| Issue date: | 09/29/1978 |
| From: | Trigilio G HITTMAN NUCLEAR & DEVELOPMENT CORP. (SUBS. OF HITTMAN |
| To: | Mcdonald C NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS) |
| References | |
| HN-S6741, NUDOCS 7810310095 | |
| Download: ML20148B158 (107) | |
Text
r i-
~ Hittman
'y L ((.(f.[g Nuclear G g
D; vel pmint.
CorportilIm 9190 Fled Branch Road Refer 3to:
- EcEWEC 30 3 f8
. HN-S6741 September 29, 1978 378 OCT 2 PM 2 28 g 7 I
U.S J.' X* > i M G.
CM M
gjgjyp600M.-
mss M. EN Mr.. Char 1 M.... No ald C.~.
U.S. Nuclear Regulatory Cotamission g((.
4N 9217 Maryland l National Bank Bldg.
Of B.
lh/
hcgk ]J
\\
q Washington,, D.C. '-20555, vr o~ cI
%c
- n s: :
f
Subject:
Certification of HNDC Model H-O HN-100 Series 2 Shipping. Cask
/g C
l Addendum No. 1 A
2,
Reference:
NRC Letter dated June 16, 1978 h'
,j l
Certification-No. 9079, Rev.
0 9,~-
p
Dear Mr.' Mcdonald:
Enclosed please find eight (8) copies of Addendum No. 1 to the Safety Analysis Report for the HN-100 series 2 casks.
Also enclosed are eight (8) copies of Drawing Nos.0-20-01D, Rev. A (2 sheets), 0-20-02D, Rev. A (2 sheets), 0-20-03D, Rev. A (1 I
sheet),land 9-20-100D, Rev. A (1 sheet), showing modifications to the sealing surface and material information on the sealing gasket.. This-new arrangement provides the necessary protection
-to.-the gasketduring the lid corner drop.and should allow the removal of-the present res' riction. requiring Type "A" inner c
~
-container.
Your cooperat' ion in' expediting the review of this addendum is
- greatly-appreciated ~.- -If further information.ls.. required,.please.
contact the undersigned.
1 Very'truly yours, h
}
v, George Trigilio, Jr..
' Engineering-Group Manager mac J
enclosures
[
4 e
- *{
.L., n,wJ
.e
+
.(
~fgyuMPa.
b y
l 4h,;g..'
4 3,
,_m
, v,.+L a. i p.
_ _.u
m___.__
g.
e=
RECEIVED
.i 378 GCT J.
P;4 2 28 ADDENDUM #1
.U.S !"
, ilEG.
ct
~1 av
' ;TlCH.
SAFETY ANALYSIS REPORT
.c.
FOR THE HN-100 SERIES 2 RADWASTE SHIPPING CASK REFERENCING 10 CFR 71. TYPE "A" PACKAGING REGULATIONS 1
h' I
l h.
1 i
HITTMAN NUCLEAR & DEVELOPMENT. CORPORATION COLUMBIA, MARYLAND 21045
[
a
.h.
Spec. No. N/A Addendurn #1 8/28/78 STilESS ANALYSIS IIN-100 SEllIES 2 CASK ADDENDUM #1 l
it MVISION I 0G 11 MV.
DATM ENGINEERING Q.A.
P R OJ. M Gil.
ECN ll 0
8/28/78
,i} u im QM,
)]c,v,,[ [
/
Prepared By:
Jarnes Gr.1 f fith Checked By' George Trigilio r
4
Spee. No. N/ A-l
. Addendum #1-8/28/78 INTRODUCTION This addendum to the Safety Analysis Report for the Hittman Nuclear & Development Corporation'HN-100, Series 2 Radwaste Ship-ping Cask is issued to remove the restriction requiring Type " A '"
inner containers.
This addendum addresses the lid seal integrity during the calculated free drop.
The following enlculations are intended to be a supplement to Section 3.2.6 of the original Safety Analysis Report.
1
{
i c
Spec. No. N/A Addendum #1 8/28/78 Cask HN-100, Series 2, Stress Analysis Gasket Spacer The gasket redesign requires a protective steel spacer.
The spacer is in the form of a ring and is welded to the top of the case where the lid interfaces with the case.
See Figure R-1.
The lid compresses-the gasket and bottoms on the spacer.
/
/
/N A/
/(
1
/
\\
/
J 8
N\\
/'/
-46.34
'\\_
.2 v
\\
4 MN x.
>-l
/
l
, 4 v 'e S I D E ---
l/
l
/
,/ %,
,/
SPAC ER RING.l2 X 68[
~ !D
/
f V VEL
/
6-
~
/
~
A CRUSH HT h 46.34" N
Figure R-1.
Cross Section of Upper Case The worst case causing stress on the spacer is the edge drop.
The deceleration is greatest here and the CG is directly over the edge, e
A-1 f
Spec. No. N/A.
-Addendum #1
[
/%
8/28/78
/ N
/
\\
7 88.75 g1, 5 7
N
/
N N.,
i I
/
NE T WT 3 4 K t#
Yl PAY L OA D I + K *v GROSS 48 kW 46.34 F1gu re 11-2.
Position of Cask at Edge Drop The drop height o f 12" and' tt gross weight of 48,.000# yield.s a kinetic energy KE = (12)(48000) = 576,000#-in.
The flow stress is 45,000#, giving a displacement V of:
576,000 V=
45,000 = 12.8 in.3 The volume displaced is in the shape of a prism with a triangular cross section of the length L of the edge.
L = (85.38)(tan 22.50) 35.4 in.
=
Therefore, the volume is bhL/2.
See Figure R-1.
The base b is:
h b-0.499 Therefore:
bhL/2 V
=
b h/0.499
=
2h L/(2)(0.499) v
=
h (0.998)(12.8)
=
35.4
]
h 0.001 in.
=
l-l A-2
Spec. No..N/A Addendum #1, 8/28/78 The maximum -deceleration Ag' is twice the drop' height II divided by
.the displacement height.h.
Ag = 211/h = (2)(12)/0.601 39.9g's
=
Deduct ~ the mass of the 11d and payload, since these.do.not. contribute to.
~
loading on the spacer.
Lid weight is 7060#, there fore not weight Wn is:
Wn 34,'000-7,000 = 27'000#-
=
Stress on 35.4 in. length of spacer is':
p (27000)( 39.9 g 's)(cos 46.340)
Ssp
- E " (0.88)(35.4)
S
= 23,900 psi gp The bearing strength of A-36 is 90,000 psi.
Therefore the M.S.:
M.S. = 90,000 -1
+ 2.77
=
23,900 I
A-3 i
.. ~.
- - +