ANS is committed to advancing, fostering, and promoting the development and application of nuclear sciences and technologies to benefit society.
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Division Spotlight
Operations & Power
Members focus on the dissemination of knowledge and information in the area of power reactors with particular application to the production of electric power and process heat. The division sponsors meetings on the coverage of applied nuclear science and engineering as related to power plants, non-power reactors, and other nuclear facilities. It encourages and assists with the dissemination of knowledge pertinent to the safe and efficient operation of nuclear facilities through professional staff development, information exchange, and supporting the generation of viable solutions to current issues.
Meeting Spotlight
2024 ANS Annual Conference
June 16–19, 2024
Las Vegas, NV|Mandalay Bay Resort and Casino
Standards Program
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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May 2024
Nuclear Technology
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Latest News
NWMO to select Canadian repository site this year
Canada’s Nuclear Waste Management Organization, a not-for-profit organization responsible for the long-term management of the country’s intermediate- and high-level radioactive waste, is set to select a site for a deep geologic repository by the end of the year.
Thomas Moore, Mike Steer, Marco Delchini, Mathieu Martin, Brian Woods
Nuclear Technology | Volume 206 | Number 6 | June 2020 | Pages 862-894
Technical Paper | doi.org/10.1080/00295450.2019.1667186
Articles are hosted by Taylor and Francis Online.
In support of the restart of the Transient Reactor Test (TREAT) Facility at the Idaho National Laboratory, an analysis of a historic sodium loop experiment is performed. With the aging of the data and the beginning of a new campaign of transient testing, it is an ideal time to perform a modern analysis of a previously successful transient testing campaign. This work investigates many prior tests and ranks these tests for desirability of analysis using modern computational fluid dynamics (CFD) tools. Once the testing data were collected, necessary drawings were used to build a three-dimensional model of the test loop for CFD analysis. This geometry was then used to perform a multi-resolution analysis of the test loop. Three different resolution analyses were performed: a macroscale analysis detailing average flow characteristics in the test section using STAR-CCM+, a more refined analysis that investigated the thermal profile within the test section in more detail using STAR-CCM+, and a fine-mesh analysis that aims to lend credibility to the turbulence modeling performed in the lower-resolution analyses using Nek5000. The main goal was to show the feasibility of using modern computational tools for experiments performed at TREAT. With this analysis performed, a methodology has been outlined for future work to follow when analyzing the data from future TREAT tests. The more refined STAR-CCM+ analysis showed the best results when compared with data, showing that simulating the solid structures is an important feature of the analysis.