국내외 전문자료

2023-08-31
국내외 전문자료사용후 핵연료 운송 기술 고려사항 (TRANSPORTATION CONSIDERATIONSFOR USEDFUELAND ADVANCEDNUCLEAR ENERGY TECHNOLOGIES)
- 국가미국
- 발행기관Idaho National Laboratory (아이다호 국립연구소)
- 원본링크https://www.osti.gov/biblio/1986464
- 첨부파일
- 파일이 없습니다.
본 보고서는 운송 가능한 원자로의 방사성 물질과 관련된 운송 문제를 검토하며 관련 내용을 제공합니다.
Advanced transportable nuclear energy systems offer easy transportability and onsite assembly for electricity generation, hydrogen production, or industrial heat applications. These systems, including microreactors, fission batteries, transportable small modular reactors, and floating reactors, are generally smaller in terms of size and power output than traditional nuclear power plants (NPPs), and are specifically designed for use in remote or inaccessible locations (e.g., islands) or for mining operations. The primary purpose of these energy units is to provide power for small-scale applications such as small and/or isolated grids and off-grid locations, and to serve as temporary or backup power sources during peak demand or emergencies. They are designed with portability in mind, enabling efficient transportation and quick assembly onsite. In short, advanced transportable nuclear energy systems represent a flexible, efficient solution for generating electricity and providing heat in various settings, particularly in areas where traditional power infrastructure may be limited or inaccessible. Transportable reactors are designed to be factory-built and shipped to the deployment site, potentially reducing construction costs and timelines in comparison to traditional NPPs. They can also be designed for scalability, meaning that multiple units can be combined to create a larger power plant. This can also foster greater flexibility in terms of power output and help reduce the costs and complexities of large-scale projects. However, as these reactors are intended as transportable energy units, they will require multi-site licensing and specific licensing guidance pertaining to the transportation of fresh, used, and spent fuels, thus requiring oversight from the US Nuclear Regulatory Commission (NRC). Some of these transportable reactors are designed to use high-assay low-enriched uranium (HALEU) fuel, and only limited refueling is required during their lifecycles. Additionally, some of these transportable reactors are planned to undergo operational or performance testing at the factory site, and the fact that the fuel will not remain fresh after such testing necessitates special licensing needs that are unnecessary for large-capacity (i.e., gigawatt size) reactors. A detailed study is needed to address these challenges by focusing on the transportation requirements/challenges faced by upcoming transportable nuclear energy systems, and by involving industry asset owners, regulatory bodies, and academic/research organizations. This study focuses on reviewing the latest transportation challenges pertaining to transportable nuclear reactor radioactive materials (i.e., fuel and nuclear waste). The transportation considerations and regulatory requirements applied to used/spent fuel casks and standard nuclear waste management will be considered the reference case against which to compare the transportable energy units, and the findings of the study will provide specific conclusions on how to resolve these challenges and determine a future path forward.