ML19114A297
| ML19114A297 | |
| Person / Time | |
|---|---|
| Site: | 07103052 |
| Issue date: | 03/05/2019 |
| From: | Willems T TN Americas LLC, Orano USA |
| To: | Division of Spent Fuel Management |
| Shared Package | |
| ML19115A128 | List:
|
| References | |
| Download: ML19114A297 (9) | |
Text
Formulaire : PM04-4-MO-6E rév. 02 Orano TN SAFETY ANALYSIS REPORT NON PROPRIETARY VERSION CHAPTER 0A TN MTR Prepared by T.WILLEMS Date Signature Identification :
DOS-18-011415-005-NPV Vers. 2.0 Page 1 / 9 NON PROPRIETARY VERSION DESCRIPTION OF INTERNAL FITTINGS AND THE LOAD OF THE TN-MTR PACKAGING TABLE OF CONTENTS
- 1. INTRODUCTION
- 2. DESIGN DRAWINGS FOR INTERNAL FITTINGS
- 3. DESCRIPTION OF INTERNAL FITTINGS AND THE LOAD
- 4. FILLER GAS LIST OF TABLES LIST OF APPENDICES APPENDIX 0A-1: DESCRIPTION OF RHF INTERNAL FITTINGS AND THE RHF LOAD APPENDIX 0A-2: DESCRIPTION OF MTR-68 INTERNAL FITTINGS AND ASSOCIATED LOADS APPENDIX 0A-3: DESCRIPTION OF MTR-52 INTERNAL FITTINGS AND ASSOCIATED LOADS APPENDIX 0A-4: DESCRIPTION OF MTR-52S INTERNAL FITTINGS AND ASSOCIATED LOADS APPENDIX 0A-5: DESCRIPTION OF MTR-44 INTERNAL FITTINGS AND ASSOCIATED LOADS APPENDIX 0A-9: DESCRIPTION OF MTR-52V2 INTERNAL FITTINGS AND ASSOCIATED LOADS APPENDIX 0A-11: DESCRIPTION OF THE CESOX CONTENT AND ITS INTERNAL FITTINGS APPENDIX 0A-12: DESCRIPTION OF THE FRM-II INTERNAL FITTINGS AND THE FRM-II LOAD APPENDIX 0A-13:
DESCRIPTION OF THE CAESIUM TRAP CONTENT AND ITS INTERNAL FITTINGS APPENDIX 0A-14:
DESCRIPTION OF THE GISETE CONTENT AND ITS SPECIFIC INTERNAL FITTINGS
Form: PM04-4-MO-6 rev.02 NON PROPRIETARY VERSION Orano TN Identification:
DOS-18-011415-005-NPV Version:
2.0 Page 2 of 9 NON PROPRIETARY VERSION REVISION STATUS Revision Date Modifications Prepared by /
Checked by Old reference: DOS-16-00173678-005 8
N/A Document first issue. Revision number intentionally set to correspond to the source document revision number.
ALC / TWI New reference: DOS-18-18-011415-005 1.0 N/A New reference due to new document management system software.
ALC / TWI 2.0 N/A Adding of the caesium trap content and the gisete content TWI / SAZ/
Form: PM04-4-MO-6 rev.02 NON PROPRIETARY VERSION Orano TN Identification:
DOS-18-011415-005-NPV Version:
2.0 Page 3 of 9 NON PROPRIETARY VERSION
- 1. INTRODUCTION The TN-MTR packaging is designed for the transport of MTR (Material Test Research) fuel assemblies, beryllium elements, complete or in pieces, placed in compartments of an internal fitting called a basket. Several baskets are used due to the large variety of MTR assemblies.
This packaging is also designed for the transport of sealed sources in special form placed inside a radiological shielding. Special wedging systems are designed for use with this type of content.
The TN-MTR packaging is described in Chapter 0.
Brief descriptions of internal fittings and allowable radioactive sources are given in this Chapter and detailed descriptions are given in the appendices to this Chapter.
- 2. DESIGN DRAWINGS FOR INTERNAL FITTINGS The different internal fittings planned for the TN-MTR packaging are shown on the drawings in Appendices 1-1 to 5-1, 9-1, 11-1, 12-1, 13-1 and 14-1 to this chapter.
These drawings specify:
- the dimensions and tolerances related to the use of the packaging and the safety analysis contained in this chapter,
- The identification markings of the various components used in the rest of this chapter.
- 3. DESCRIPTION OF INTERNAL FITTINGS AND THE LOAD Different types of internal fittings are planned for use in the TN-MTR packaging:
- RHF Basket
- MTR-68 basket
- MTR-52 basket
- MTR-52S basket
- MTR-52SV2 basket
- MTR-44 basket
- Wedging system for the CESOX content
- FRM II Basket
- Wedging system for the caesium trap content
- Wedging system for the gisete content The description of these internal fittings is given in Appendices 1 to 5, 9, 11 and 12 to this chapter.
These descriptions include the characteristics of materials in internal fittings and the description of the radioactive contents. Table 0A.1 presents the internal fittings and their associated loads.
Form: PM04-4-MO-6 rev.02 NON PROPRIETARY VERSION Orano TN Identification:
DOS-18-011415-005-NPV Version:
2.0 Page 4 of 9 NON PROPRIETARY VERSION Some contents may include some zones broken before transport. The mass of U contained in the broken zones before transport is determined as presented in Appendix 0A.1.
Additional requirements for wedging the content may make it necessary to use spacers, depending on which internal fittings are used, the type of basket and the type of content transported. This is the case for MTR type fuel elements.
In general, these spacers will be made from aluminium or stainless steel with dimensions such that they can satisfy the requirements and wedging forces. The justification for the mechanical strength of these wedging devices is presented in Chapter 1A.
The mass per unit length of these spacers plus the mass of the fuel elements shall not exceed values allowable for the compartments of the internal fittings used as specified in the appendices to Chapter 0A.
The appendices to this chapter contain the description of spacers allowed in each basket.
- 4. FILLER GAS The cavity filler gas for the CESOX content and beryllium elements is air.
The cavity filler gas for the caesium trap content is argon.
The filler gas for the cavity and the can for the broken or disassembled BR2 fuel loaded in the BR2 can, is helium.
In other cases, including for the gisete content, regardless of which basket is used, the cavity filler gas may be air and/or nitrogen and/or helium. The maximum allowable thermal power for each basket may depend on the cavity filler gas, as specified in the different appendices to this chapter.
Form: PM04-4-MO-6 rev.02 NON PROPRIETARY VERSION Orano TN Identification:
DOS-18-011415-005-NPV Version:
2.0 Page 5 of 9 NON PROPRIETARY VERSION LIST OF TABLES Table Description Pages 0A.1 Internal fittings and radioactive contents 2
Form: PM04-4-MO-6 rev.02 NON PROPRIETARY VERSION Orano TN Identification:
DOS-18-011415-005-NPV Version:
2.0 Page 6 of 9 NON PROPRIETARY VERSION LIST OF APPENDICES Appendi x
Description Pages 0A.1 Determination of the mass of U contained in broken zones before transport 1
Form: PM04-4-MO-6 rev.02 NON PROPRIETARY VERSION Orano TN Identification:
DOS-18-011415-005-NPV Version:
2.0 Page 7 of 9 NON PROPRIETARY VERSION TABLE 0A.1 (1/2)
INTERNAL FITTINGS AND RADIOACTIVE CONTENTS Internal fittings Radioactive contents Characteristics of the content RHF RHF See Appendix 0A-1 MTR-68 Generic elements (UAlx, UySiz, U3Si2, U3O8)
See Appendix 0A-2 ORPHEE OSIRIS BR2 (S5 and S6)
ANSTO MTR-52 Generic elements (UAlx, UySiz, U3Si2, U3O8, UMo)
See Appendix 0A-3 OSIRIS Broken BR2 MTR-52S Sound generic elements (U3Si2, UAlx, UySiz, U3O8)
See Appendix 0A-4 Generic elements possibly broken (UAlx, UySiz)
ANSTO OSIRIS MTR-44 Generic elements (UAlx, UySiz, U3Si2)
See Appendix 0A-5 ORPHEE OSIRIS CARAMEL OSIRIS Beryllium elements MTR-52SV2 Sound generic elements (U3Si2, UAlx, UySiz, U3O8)
See Appendix 0A-9 Generic elements possibly broken (UAlx, UySiz)
ANSTO OSIRIS CESOX wedging system Sealed source in special form See Appendix 0A-11 FRM-II FRM-II See Appendix 0A-12
Form: PM04-4-MO-6 rev.02 NON PROPRIETARY VERSION Orano TN Identification:
DOS-18-011415-005-NPV Version:
2.0 Page 8 of 9 NON PROPRIETARY VERSION TABLEAU 0A.1 (2/2)
INTERNAL FITTINGS AND RADIOACTIVE CONTENTS Internal fittings Radioactive contents Characteristics of the content Caesium trap wedging system Caesium trap containing an absorbent medium with radioactive isotopes See Appendix 0A-13 Gisete wedging system Isotopic generator containing a strontium 90 titanium source See Appendix 0A-14
Form: PM04-4-MO-6 rev.02 NON PROPRIETARY VERSION Orano TN Identification:
DOS-18-011415-005-NPV Version:
2.0 Page 9 of 9 NON PROPRIETARY VERSION APPENDIX 0A.1 DETERMINATION OF THE MASS OF U CONTAINED IN BROKEN ZONES BEFORE TRANSPORT The maximum mass of U contained in zones already broken before transport is the maximum total mass of U contained in all identified broken plates in the fuel assembly.
If the determinations cannot be discretized, it will be impossible to identify which plates are sound and which are broken. The maximum mass of U contained in zones already broken before transport is then assumed, on an upper-bound basis, to be the maximum total mass of U contained in the entire fuel assembly.