ML19268A468
| ML19268A468 | |
| Person / Time | |
|---|---|
| Site: | 07109362 |
| Issue date: | 09/25/2019 |
| From: | John Mckirgan Spent Fuel Licensing Branch |
| To: | Hilbert F Daher Nuclear Technologies GmbH |
| Saverot P | |
| Shared Package | |
| ML19268A467 | List: |
| References | |
| EPID L-2019-LLA-0172 | |
| Download: ML19268A468 (5) | |
Text
UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 September 25, 2019 Mr. Franz Hilbert DAHER NUCLEAR TECHNOLOGIES GmbH Margarete-von-Wrangell-Strae 7 D-63457 Hanau - GERMANY
SUBJECT:
CERTIFICATE OF COMPLIANCE NO. 9362, REVISION NO. 1, FOR THE MODEL NO. DN30 PACKAGE
Dear Mr. Hilbert:
As requested by your application dated July 25, 2019, supplemented September 6, 2019, enclosed is Certificate of Compliance No. 9362, Revision No. 1, for the Model No. DN30 package. Changes made to the enclosed certificate are indicated by vertical lines in the margin.
The U.S. Nuclear Regulatory Commission staff safety evaluation report is also enclosed.
The approval constitutes authority to use the package for shipment of radioactive material and for the package to be shipped in accordance with the provisions of Title 49 of the Code of Federal Regulations 173.471.
If you have any questions regarding this certificate, please contact Pierre Saverot of my staff at (301) 415-7505.
Sincerely,
/RA/
John McKirgan, Chief Spent Fuel Licensing Branch Division of Spent Fuel Management Office of Nuclear Material Safety and Safeguards Docket No. 71-9362 EPID - L-2019-LLA-0172
Enclosures:
- 1. CoC No. 9362, Rev. No. 1
F. Hilbert
SUBJECT:
CERTIFICATE OF COMPLIANCE NO. 9362, REVISION NO. 1, FOR THE MODEL NO. DN30 PACKAGE, DOCUMENT DATE: September 25, 2019 DISTRIBUTION: SFST r/f ADimitriadis, RI BBonser, RII MKunowski, RIII GWarnick, RIV Filename: G:/SFST/PART 71 CASEWORK/Model DN30 Docket 71-9362/9362.R1.doc; 9362.R1.LETTER&SER.doc EPID : Closes L-2019-LLA-0172 ADAMS Package No.: ML19268A467 Letter and SER No.: ML19268A468 CoC Accession No.: ML19268A470 OFC: SFM E SFM C SFM SFM C SFM C SFM C NAME: YDiaz-PSaverot TAhn JIreland MRahimi SFigueroa Sanabria DATE: 08/22/2019 08/23/2019 08/26/2019 09/09/2019 09/18/2019 09/20/2019 OFC: SFM C SFM SFM SFM SFM SFM NAME: JMcKirgan DATE: 09/25/2019 E=With attachment/enclosure N=No copy C=Without attachment/enclosure OFFICIAL RECORD COPY
UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 SAFETY EVALUATION REPORT Model No. DN30 Package Certificate of Compliance No. 9362 Revision No. 1
SUMMARY
By letter dated July 25, 2019, Daher Nuclear Technologies, GmbH, (DNT, or the applicant) submitted an amendment request for Certificate of Compliance (CoC) No. 9362 for the Model No. DN30 package.
DNT requested the possibility to use a microporous insulation material, designated as WDS Multiflex ST 2D50 DS hydrophobic, between the inner shell of the DN30 and the foam, in lieu of the Microtherm Overstitched 1000R HY material that was approved in Revision No. 0 of the CoC. The applicant also requested a small design change concerning the handling of the housing of the valve protecting device.
The staff verified the properties and characteristics of this new material. The staff also verified that the Model No. DN30 package provides adequate protection against the thermal tests specified in Title 10 of the Code of Federal Regulations (10 CFR) Part 71 and that the package design meets the thermal performance requirements of 10 CFR Part 71 under normal conditions of transport (NCT) and hypothetical accident conditions (HAC) based on the inclusion of this alternate thermal insulation material.
Based on the statements and representations in the application, and the conditions listed in the Certificate of Compliance, the staff concludes that the package meets the requirements of 10 CFR Part 71.
EVALUATION The applicant provided a comparison of the material properties of MICROTHERM versus WDS Multiflex for the structural, thermal, shielding (external dose rate), and criticality analyses. The staff finds the provided comparison to be acceptable based on very narrow variations of the physical and material properties between the two thermal insulation materials for all of their functional requirements. The staff also reviewed relevant open literature information and found that the payload radiation level absorbed by the WDS Multiflex insulation material is well below the acceptable threshold required to induce any structural damage or gas generation, and that silicates are used as a microstructural basis. The thermal stability is also similar in both insulation materials. Therefore, the staff accepts the use of the WDS Multiflex for the Model No.
DN30 package.
The staff verified the WDS Multiflex (ST Grade) material was included on the licensing drawings parts list. The staff also verified that the material properties provided in Table 3-1, Enclosure 2
2 Material Properties for the Thermal Analysis, of the supplemented Change Report No. 0023-BAW-2019-001-Rev1 entitled, Licensing of an Alternative Supplier for the Thermal Insulation Layer of the DN30 PSP, agreed with the values provided on the Morgan Advanced Material WDS Multiflex (ST Grade) data sheet.
The applicant provided NCT and HAC thermal analysis temperature results of the DN30 package with the use of WDS Multiflex (ST Grade) insulation material in the supplemented Change Report No. 0023-BAW-2019-001-Rev1. The applicant performed an NCT thermal analysis with the use of the WDS Multiflex (ST Grade) insulation material. The applicant showed that with the use of the WDS Multiflex (ST Grade) insulation material, in comparison to the previously approved use of MICROTHERM insulation material in the initial issuance of the CoC (Agencywide Documents Access and Management System (ADAMS) No. ML19203A266),
the maximum increase in component temperatures was 0.02°C (0.036°F).
The staff verified the applicant provided component temperatures in Table 3-2, Maximum temperatures calculated for the DN30 package for NCT, of the supplemented Change Report No. 0023-BAW-2019-001-Rev1 would remain below the maximum allowable NCT temperature limits provided in Table 52, Admissible component temperatures of the package DN30, of the DN30 application. Also, based on the applicants provided small changes to the NCT component temperatures in Table 3-2 of the supplemented Change Report No. 0023-BAW-2019-001-Rev1, the staff does not expect a change in the maximum normal operating pressure.
The applicant provided HAC temperature results of the DN30 package 30B cylinder valve, 30B cylinder plug, 30B cylinder mantle, and the DN30 inner and outer shells with the use of the WDS Multiflex (ST Grade) insulation material in Table 3-3, Maximum temperatures calculated for the DN30 package for ACT, of the supplemented Change Report No. 0023-BAW-2019-001-Rev1. The applicant showed that, with the use of the WDS Multiflex (ST Grade) insulation material, in comparison to the previously approved use of MICROTHERM insulation material in the initial issuance of the CoC (ADAMS Accession No. ML19203A266), the DN30 package 30B cylinder valve, plug, and mantle temperatures decreased by 0.7°C (1.26°F); the temperature of the DN30 outer shell did not change, and the temperature of the DN30 inner shell increased by 0.2 °C (0.36 °F).
Due to the increase in DN30 inner shell temperature, the staff verified the temperature of the DN30 inner shell remained well below the maximum allowable HAC temperature limit for the DN30 inner shell provided in Table 52, of the DN30 application. Also, based on the applicant provided small changes to the HAC component temperatures in Table 3-3 of the supplemented Change Report No. 0023-BAW-2019-001-Rev1, the staff does not expect a change in the maximum pressure during HAC. Based on review of the statements and representations in the supplemented application, the staff concludes that the thermal design has been adequately described and evaluated, and that the thermal performance of the package meets the thermal standards of 10 CFR Part 71.
The applicant also requested a small design change, concerning the handling of the housing of the valve protecting device, to make the housing completely removable from the valve protecting device and thus allow any type of hook designed for the lifting of the 30B cylinder to fit with the DN30 PSP. DNT revised the licensing drawings accordingly. This change affects only the loading and unloading operations of the 30B cylinder into the DN30 PSP and has no influence on the DN30 package safety evaluation during both NCT and HAC. The revised handling instructions note that operators have to put the housing back after loading and
3 unloading of the cylinder and a sticker insert housing before closing has been added to the valve protecting device.
Based on the statements and representations in the application, as supplemented, the staff concludes that the package meets the requirements of 10 CFR Part 71.
CONDITIONS The following changes were made to the certificate of compliance:
Item No. 3(b) identifies the application as supplemented.
Condition No. 5(a)(3) has been modified to include revised licensing drawings and a parts list.
Condition No. 11 has been modified to extend the previous revision of the certificate for approximately one year.
The expiration date of the certificate (previously Condition No.11, now renumbered as Condition No. 12) was not modified.
The References section of the certificate was updated to include the supplemental information referenced 0023-SVK-2019-019-Rev1, dated September 6, 2019.
CONCLUSION Based on the statements and representations in the application, the staff finds that these changes do not affect the ability of the package to meet the requirements of 10 CFR Part 71.
Issued with Certificate of Compliance No. 9362, Revision No. 1, On September 25, 2019.