Abstract

This analytical study focuses on loading standardized transportation, aging, and disposal canisters (STADs) at commercial reactor sites and subsequent transportation, e.g., to a consolidated interim storage facility (CISF). Specifically, the amount of spent nuclear fuel (SNF) available to load into STADs with varying deployment dates is explored, and the scenarios are compared with a scenario in which STADs are never loaded at reactor sites. Two key findings are that about half of the U.S. inventory of commercial SNF could be captured in STADs if they were fully deployed by 2035 and that the percentage of SNF available to load into STADs decreases as STAD deployment is delayed.

In additional scenarios, the effects of shipping STADs directly from at-reactor spent fuel pools (SFPs) to a CISF are analyzed for a STAD full deployment year of 2035. A key finding from the analysis is that the dry storage of SNF in STADs at reactor sites can be minimized by direct shipment to a CISF from reactor site SFPs. However, minimizing dry storage at reactor sites means maximizing the receipt rate for STADs at a CISF, and there is likely a more optimal point between the two scenarios for an overall cost-effective operation of waste management systems.

摘要

这项分析研究的重点是在商业反应堆场址装载标准化运输、老化和处置罐 (STAD) 以及随后的运输，例如到综合临时储存设施 (CISF)。具体而言，探索了可用于装载到具有不同部署日期的 STAD 的乏核燃料 (SNF) 的数量，并将这些情景与从未在反应堆场址装载 STAD 的情景进行比较。两个关键发现是，如果到 2035 年完全部署 STAD，大约一半的美国商业 SNF 库存可以在 STAD 中捕获，并且可以加载到 STAD 的 SNF 百分比随着 STAD 部署的延迟而减少。

在其他情景中，分析了 2035 年 STAD 完整部署年份直接从反应堆乏燃料池 (SFP) 向 CISF 运输 STAD 的影响。通过从反应堆场址 SFP 直接运送到 CISF，可以最大限度地减少反应堆场址。然而，最大限度地减少反应堆场址的干储存意味着最大限度地提高 CISF 的 STAD 接收率，并且对于废物管理系统的整体成本效益运行而言，两种方案之间可能存在更优的点。