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Fusion Energy
This division promotes the development and timely introduction of fusion energy as a sustainable energy source with favorable economic, environmental, and safety attributes. The division cooperates with other organizations on common issues of multidisciplinary fusion science and technology, conducts professional meetings, and disseminates technical information in support of these goals. Members focus on the assessment and resolution of critical developmental issues for practical fusion energy applications.
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2024 ANS Annual Conference
June 16–19, 2024
Las Vegas, NV|Mandalay Bay Resort and Casino
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The Standards Committee is responsible for the development and maintenance of voluntary consensus standards that address the design, analysis, and operation of components, systems, and facilities related to the application of nuclear science and technology. Find out What’s New, check out the Standards Store, or Get Involved today!
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Latest News
Retrieval of nuclear waste canisters from a borehole
Borehole disposal of spent nuclear fuel (SNF) and high-level waste (HLW) uses off-the-shelf directional drilling technology developed and commercialized by the oil and gas sectors. It is a technology that has been gaining traction in recent years in the nuclear industry. Disposal can be done in one or more boreholes (including an array) drilled into suitable sedimentary, igneous, or metamorphic host rocks. Waste is encapsulated in specialized corrosion-resistant canisters, which are placed end to end in disposal sections of relatively small-diameter boreholes that have been cased and fluid-filled. After emplacement, the vertical access hole is plugged and backfilled as an engineered barrier.
B. T. Shellabarger, S. G. Durbin, M. Yoda, S. I. Abdel Khalik, D. L. Sadowski
Fusion Science and Technology | Volume 46 | Number 4 | December 2004 | Pages 571-576
Technical Note | doi.org/10.13182/FST04-A592
Articles are hosted by Taylor and Francis Online.
A number of thin liquid protection schemes involving a sacrificial thin liquid layer have been proposed to protect the first walls of inertial fusion energy reactor chambers from excessive radiation and energetic ion damage. The Prometheus study used a tangentially injected high-speed film of molten lead attached to the first wall to protect the upper endcap of the chamber reactor. Minimizing droplet formation and detachment from this film to avoid interference with beam propagation is a major design issue for such flows.Experiments were conducted on turbulent films of water injected tangentially with a rectangular nozzle into ambient air onto the underside of a horizontal flat plate. Previous efforts were focused on the effect of various design and operational parameters on the film detachment distance. This study focuses on measurement of the "hydrodynamic source term," i.e., the rate of droplet formation due to primary turbulent breakup at the film surface. Droplet mass flux was measured using a simple collection technique at various standoff distances measured with respect to the plate surface and downstream distances measured from the nozzle exit. The data show that the ejected droplet mass flux increases as the standoff distance decreases and as both downstream distance and Weber number increase. Comparisons of the experimental data on the estimated ejected droplet mass flux with previously published correlations suggest that the correlations overpredict the ejected droplet mass flux by more than three orders of magnitude.