ML20056B267
| ML20056B267 | |
| Person / Time | |
|---|---|
| Site: | 07106386 |
| Issue date: | 08/10/1990 |
| From: | Engel W ENERGY, DEPT. OF |
| To: | Macdonald C NRC |
| References | |
| NUDOCS 9008280029 | |
| Download: ML20056B267 (6) | |
Text
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'?/-d58To o-U Department of Energy wohington, oc nossa NR:RR:KPThibodeau G#90-03655 August 10, 1990 C; E. MacDonald Chief, Transportation certification Branch Nuclear Regulatory Commission Washington, D.C.
20555 MODEL'235R001 UNNIRRADIATED FUEL CELL SHIPPING CONTAINER -
ISSUANCE OF A NEW NRC CERTIFICATE OF COMPLIANCE FOR SHIPMENT OF A SINGLE D2W. FUEL CELL; ' REQUEST FOR In 1983, Title 10 of the Code of Federal Regulations, Part 71 (10CFR71) was revised,to include new requirements, including
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brittle fracture requirements, applicable to containers built after August,31,,1986.
Previously certified containers built before'AugustL1986 were grandfathered to the new requirements and were designated by a "B( )" in the certificate of Compliance
.(CoC) number.
Containers built after August 1986 are designated as meeting the new requirements by a "B(U)" in the. CoC number.
Naval Reactors requests the NRC issue a CoC ("B(U)" designation) for the shipment of a single D2W fuel cell in the Model 235R001 container.
Shipment of a single D2W new fuel cell.in the Model 235R001 new fuel cell shipping container is currently authorized under NRC Certificate of Compliance (CoC) USA /6386/B( )F Revision 10 dated December 19, 1988.
Since the Model 235R001 L
containers that will be used to ship single D2W fuel cells were built after August 31, 1986, a "B(U)" CoC is now needed.
4 The D2W Model 235R001 package consists.of one rodded D2W fuel cell, a carbon steel frame assembly and a carbon steel container shell.
The fuel cell is installed into the frame assembly, which is supported within the container shell by 14 rubber shear mounts.
The containment boundary for,the radioactive material is the fuel element cladding.
The frame assembly and container shell are thin sections less than 0.4 inches thick.
Based on a review of the safety documentation for the 235R001 container, Naval Reactors considers that the single cell D2W 235R001 package meets the latest requirements of 10CFR71. The major change to 10CFR71 in.1983 was the addition of new brittle fracture requirements.
NRC guidelines for'the prevention of brittle. fracture are contained in draft Regulatory Guide L
MS-144-4, which endorses the material acceptance criteria of NUREG/CR-1815.
The draft Regulatory Guide only applies to ferritic steel containment vessels.
The containment boundary (or
" vessel") for the radioactive material in the D2W Model 235R001 package is'the cladding of the fuel element which is not susceptible to brittle fracture.
9006280029 900810 PDR ADOCK 07106386
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C'. E. MacDonald
..NR RR:KPThibodeau G#90-03655 Currently, no guidance 1for the prevention of brittle fracture exists for non-containment. boundary parts of a package.
As noted L
in Naval Reactors memorandum G#89-2218 stated October 20, 1988,-Naval l
Reactors considers-the least stringent-material acceptance criteria (Category III) of NUREG/CR-1815 are appropriate for non-containment boundary parts of a package which do not warrant
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the same level of control'as the containment boundary.
For parts lless than 0.4 inches thick, Category III contains no material-L acceptance criteria due to the relative insusceptibility of thin-material to a-brittle failure.
Therefore, there is no brittle fracturv concern for the D2W Model 235R001 package since the frame assembly-and container shall are less than 0.4 inches thick.
1 NRC concurrence and issuance of a new B(U) CoC for the single cell D2W shipment in the Model 235R001 container is requested by October 1, 1990.
A proposed DOE CoC for this shipment.is included as enclosure-(1).
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Engel l
Naval Reactors i
L Enclosure'(1):
DOE Certificate of Compliance USA /6386/B(U)F L
(DOE-NR) proposed Revision 0 i
CC:
J. Leonard,-DOE EH-32 Manager, PNRO (2)
Manager, Reactor Servicing Operation,.KAPL 3
Manager, Shipping containere, KAPL Manager, Shipping Containers, Bettis 2
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Draf t DOE' Certificate. of Complianco USA /6386/B(U)F
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, DOE,F 5822.1L U.S. DEPNtTHE%T OF ECRGY -
Ops Aprovst (5 85) lERTIFich1E OF CEFLIAME No. 1910 2000 (Formerly EV 618) '
For Radioactive Noterials Packages
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f1s. Certifieste Ihaber 1b. Revision No.
'1c. Package Identification No.
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Ie. Total No. Pages lau'tetengu3rgggg.m)
O tmA/AMJBfU)FfDIE-M) 1 3
2.
PREAfSLE 2a. This certificate is issued eder the authority of 49CFR Part 173.7(d) i 2b. The packaging and contents described in item 5 below, meets the safety standards set forth in s@ pert E, "Peckage Approval Standards" md adport F, " Package and Speclat Form Tests" Title 10, code of Federal Regulations, Part 71.
n 2c. This certificate does not relieve the consignor from cooptience with any re @lrament of the regulations of the U.S. Department of Trareportation or other applicable regulatory agencies, includtry the '
j goverr.nont of any country through or into which the package will be transported.
3.
This certificate is issued on the basis of a safety antysis ret.vt of the package design or aplication - (3) Date:
I (1) Prepared by (Name and address)
(2) Title and Identification of report or applieatIons Rottle Atomic Pouer Lahoretory safety Anotysis Report for Packagine P.O. Boa 79 for the Model 235R001
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West Nifflin, PA 15122-0079 Ilonirradiated Fuel Cett Enstts Atomic Ponsor Laborotory Wilpire aruf Storage Container l
P.O. Box 1072
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Schenectadr, N.Y. 12301 1072' 4 CONDITIONS This certificate is :enditional upon the fulf f!Line of the applicable operational und Quality Assurance reautrements of 49CFR parts 100109 and 10CFR Part 71. and the conditions speciflei in item 5 below.
5.
Description of Packaging and Authorized Contents, Model Number, Fissile Class, (ether Conditions, and Refererres:
Model 235R001 Shionina and Storace Container a.
Description of Packacing The Model 235R001 shipping and-storage container is-designed to ship various types of nonirradiated naval fuel cells. 'The container. consists of a two.section horizontal cylindrical shell approximately 34 inches in diameter by 313 inches in length.
The shell is fabricated from AISI 1010/1020.10-inch thick carbon steel sheet and is parted along a horizontal axial plane into an upper cover and lower base'section.
An internal structure, suspended within the base section is used to secure the fuel cells within the container.
The cover is secured to the base section of the container with forty-four.500-inch diameter bolts.
The container is sealed by an 0-ring gasket installed between the flanges of the cover and base sections.
fa. Date of Issumce-I6b. ExDIration Date!
FOR THE L).S. DEPARTMENT OF ENERGY 7A. Address (of DOE Issuing Of fice) 7b. Signature, kame and Title (of DCE A proving Official)
Havel Reactors C.N. Sciunitt U.S. Departsent of Energy Deputy Olrector l'
Washirgton, D.C.
20585 usvet Reactors b-
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Cortificoto~of-Compliancs A,iA.
5.a-Descrintion of Packmaina (Continued)'
The internal arrangement of the Model 235R001 container varies depending on the type of fuel cell being shipped, but basically consists of a fuel cell support structure suspended within the 1
base section of the container.
Generally, the fuel cell' support j
structure consists of two side rails attached longitudinally to the inner pide walls of the base section using rubber shear-mounts, and cradle clamp assemblies which are oriented transverse to the container axis and bolted to the-side rails.
In addition to suspending the fuel cell support structure within the container base section, the rubber shear mounts also act to absorb energy and limit loadings to the fuel cells in the event of a. shipping accident.
The cradle clamp. assemblies, consisting of upper and lower halves, are fabricated from either steel castings or weldsents and are used to secure the fuel cells within the container.
The cradle clamps are also designed to protect the cells from excessive shear and bending loads in the event of a shipping accident.
In cases where a control rod'(or poison rod) must be included with a fuel cell for shipping safety, a holddown device is used to prevert rod motion.
Container lifting provisions are provided by eight reinforced holes located in supports attached to the exterior of the container base,-four along each side.
Fork lift guides are also-located under the base section of the container for lifting and i
transporting the container by forklift truck.
During transport, l
the container is tied down by bolting the container skids (attached to the base section of the container) to the transport vehicle.
l-The weight of the Model 235R001 container depends on the' type of fuel cell being shipped.
Empty container weights range from approximately 5,800 to 8,400 poun$s.
qLoaded container weights range from approximately 7,400 to,12,400 pounds.
Additional information on the container configuration is as follows:
1)
Model 235R001, Group 14 and Group 15 Container
- The Model 235R001, Group 14 and Group 15 containers are used to ship one D2W type fuel cell with shear block attached.
The container shell ig identical to the Model 235R001, Group 5 container shell.
The fuel cell support p
l lE A previously issued Certificate of compliance, USA /6386/B( )F (DOE-NR), covers the Model 235R001 Shipping Container with contents designated Group 1 through Group 13.
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Cortificato of.Corplianc3; t
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5.a Descrintion of' Packaging (Continued) r structure is suspended within the base section of the'-
container by 14 rubber shear mounts.
The fuel cell is i
restrained laterally and vertically in the support structure by two horizontal clamps and an adjustable' cradle clamp assembly.
The only difference between the Group 14
-and Group 15 containers is the use of spacers bolted-to the Group 15 fuel cell support structure and a different adjustable cradle clamp assembly design.
The fuel cell is 4
restrained longitudinnily by vertical plates welded to the Z-shaped side rails at each end of the support structure.
l A control rod is secured in each rodded fuel cell using a control rod holddown device.
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- b. Authorized Contents The maximum-authorized contents for the container are as i
follows:
1)
Model 235R001, Group 14 or Group 15 Container - One
.D2W type fuel cell and shear block with control. rod inserted, in rodded fuel cell,
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- c. Fissile Class Shipments are Fissile Class III.
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d..Other Conditions'(Restrictionst 1)
Shipments consisting of the' mat'ekials listed'in 5.b.1 are limited to a maximum of foult loaded containers (any l.
combination) per transport vehicle.
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- e. References 1 1 None.
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- f. Additional Information None.
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