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Title: Development of a Remote Sealing Technique for Dry Nuclear Storage Casks

Abstract

Statement of the problem: In the US, there are approximately 75 sites for the storage of high level Nuclear Waste from Nuclear reactors, which are now stored in dry canister storage systems, typically near population centers and salt air. Protective concrete overcasks provide only small gaps between the outer canister surface and the overcask, which is also a hot and highly radioactive environment, making conventional inspection and repair techniques unsuitable. Stress-induced corrosion is a possible means to breach the Stainless steel walls , hence there is a compelling need to develop patch-weld techniques to provide 100% containment of the highly toxic contaminants. Solution: We have developed a patch-weld technique that consists of a sachet of reactive metal powders that are applied to a crack or pit site and then ignited to form a solid metal patch that is welded to the stainless steel. The flexible nature of the patch weld sachet allows for it to be deformed through the somewhat tortuous pathway to get to the patch weld site, and the sachet provides a consistent, low profile patch. A low profile, non-contact method to initiate the powder reactions was developed that is compatible with the Nuclear Waste canister environment.

Authors:
ORCiD logo [1]
  1. Shape Change Technologies
Publication Date:
Research Org.:
Shape Change Technologies LLC
Sponsoring Org.:
USDOE Chicago Operations Office (CO)
OSTI Identifier:
1496601
Report Number(s):
DOE-SCT-01
8053125665
DOE Contract Number:  
SC0017713
Type / Phase:
SBIR (Phase I)
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; Nuclear Waste Storage, Stress Corrosion, Self Propagating High Temperature Synthesis, Nitinol, Welding, Florescence , Patch Welds

Citation Formats

Jardine, Andrew Peter. Development of a Remote Sealing Technique for Dry Nuclear Storage Casks. United States: N. p., 2018. Web.
Jardine, Andrew Peter. Development of a Remote Sealing Technique for Dry Nuclear Storage Casks. United States.
Jardine, Andrew Peter. Tue . "Development of a Remote Sealing Technique for Dry Nuclear Storage Casks". United States.
@article{osti_1496601,
title = {Development of a Remote Sealing Technique for Dry Nuclear Storage Casks},
author = {Jardine, Andrew Peter},
abstractNote = {Statement of the problem: In the US, there are approximately 75 sites for the storage of high level Nuclear Waste from Nuclear reactors, which are now stored in dry canister storage systems, typically near population centers and salt air. Protective concrete overcasks provide only small gaps between the outer canister surface and the overcask, which is also a hot and highly radioactive environment, making conventional inspection and repair techniques unsuitable. Stress-induced corrosion is a possible means to breach the Stainless steel walls , hence there is a compelling need to develop patch-weld techniques to provide 100% containment of the highly toxic contaminants. Solution: We have developed a patch-weld technique that consists of a sachet of reactive metal powders that are applied to a crack or pit site and then ignited to form a solid metal patch that is welded to the stainless steel. The flexible nature of the patch weld sachet allows for it to be deformed through the somewhat tortuous pathway to get to the patch weld site, and the sachet provides a consistent, low profile patch. A low profile, non-contact method to initiate the powder reactions was developed that is compatible with the Nuclear Waste canister environment.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2018},
month = {5}
}

Technical Report:
This technical report may be released as soon as February 26, 2023
Other availability
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