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Center for Used Fuel Research: Building confidence in storage and transport
Used nuclear fuel storage and transportation have reached a critical juncture.
Dozens of utilities need reliable data on how used nuclear fuel performs in dry storage casks and canisters to extend regulatory licenses at sites across the United States. Likewise, the Department of Energy expects to take ownership of the used nuclear fuel—termed “spent nuclear fuel” in the laws and regulations governing its stewardship—and transfer it to one or more federal staging facilities for management and disposition.
Meanwhile, dozens of reactor companies are testing prototypes of advanced reactors and advanced reactor fuels. Eventually, regulators and industry must also verify the safety and security of storage methods for these advanced fuel types.
To help address these challenges, the DOE established the Center for Used Fuel Research (CUFR) in January 2026 for work related to the long-term storage and transport of used nuclear fuel.
Huai-En Hsieh, Zhusheng Guo
Nuclear Technology | Volume 212 | Number 5 | May 2026 | Pages 1385-1397
Research Article | doi.org/10.1080/00295450.2025.2496582
Articles are hosted by Taylor and Francis Online.
This study investigates the effect of different surfactants on Al2O3 nanofluids during the down-heating process. By doping Al2O3 nanofluid with a mass concentration of 12 mg/L with various surfactants, such as sodium dodecylbenzene sulfate (SDBS), sodium dodecyl sulfate (SDS), and gum arabic, pool boiling experiments were conducted to evaluate their thermal conductivity and stability. The experimental results showed significant differences in the enhancement of critical heat flux and the heat transfer coefficient among the different surfactants, with gum arabic exhibiting the best performance, followed by SDBS, and SDS, which showed the least enhancement. The study also found that the concentration of surfactants plays a crucial role in affecting the overall heat transfer performance and stability of nanofluids. The experimental group of 24 mg/L gum arabic doped into the Al2O3 nanofluid showed the best heat transfer performance. Highlights include the following:1. The whole process of boiling heat transfer of alumina nanofluid was recorded.2. Different surfactants enhance the critical heat flow density of alumina nanofluids to different degrees.3. The effect of surfactant type and concentration on surface properties and heat transfer performance was analyzed.4. Microlevel analysis was conducted for the enhancement of heat transfer properties of alumina nanofluids by gum arabic.
1. The whole process of boiling heat transfer of alumina nanofluid was recorded.
2. Different surfactants enhance the critical heat flow density of alumina nanofluids to different degrees.
3. The effect of surfactant type and concentration on surface properties and heat transfer performance was analyzed.
4. Microlevel analysis was conducted for the enhancement of heat transfer properties of alumina nanofluids by gum arabic.
