ANS is committed to advancing, fostering, and promoting the development and application of nuclear sciences and technologies to benefit society.
Explore the many uses for nuclear science and its impact on energy, the environment, healthcare, food, and more.
Division Spotlight
Thermal Hydraulics
The division provides a forum for focused technical dialogue on thermal hydraulic technology in the nuclear industry. Specifically, this will include heat transfer and fluid mechanics involved in the utilization of nuclear energy. It is intended to attract the highest quality of theoretical and experimental work to ANS, including research on basic phenomena and application to nuclear system design.
Meeting Spotlight
Conference on Nuclear Training and Education: A Biennial International Forum (CONTE 2025)
February 3–6, 2025
Amelia Island, FL|Omni Amelia Island Resort
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!
Latest Magazine Issues
Jan 2025
Jul 2024
Latest Journal Issues
Nuclear Science and Engineering
February 2025
Nuclear Technology
Fusion Science and Technology
Latest News
Fermilab center renamed after late particle physicist Helen Edwards
Fermi National Accelerator Laboratory’s Integrated Engineering Research Center, which officially opened in January 2024, is now known as the Helen Edwards Engineering Center. The name was changed to honor the late particle physicist who led the design, construction, commissioning, and operation of the lab’s Tevatron accelerator and was part of the Water Resources Development Act signed by President Biden in December 2024, according to a Fermilab press release.
K. Kotoh et al.
Fusion Science and Technology | Volume 56 | Number 1 | July 2009 | Pages 173-178
Tritium, Safety, and Environment | Eighteenth Topical Meeting on the Technology of Fusion Energy (Part 1) | doi.org/10.13182/FST09-A8897
Articles are hosted by Taylor and Francis Online.
For the purpose of developing a cryogenic pressure swing adsorption (PSA) system, we have been studying the breakthrough behavior of hydrogen isotopes with synthetic zeolite packed-beds under conditions specified for designing a PSA process. Previously, we have reported that overshooting breakthrough curves of tracer D2 in H2 were obtained from experiments of exchange-adsorption carried out after replenishing a packed-bed column with H2 from its outlet, following evacuation for a given period. The overshooting behavior is considered due to the enrichment of the heavier component D2 not only in the adsorption process but also in the evacuation process. In the next work, we have examined the effects of priming flow rates and evacuation periods on the overshooting behavior, using synthetic zeolites 5A and 13X packed-bed columns. In this paper, it is reported that the overshooting profile depends on the conditions of evacuation but not sensitively on the mass flow rates in replenishing process. The overshooting is advantageous for the adsorption process, because of improvement of the breakthrough time. Since the replenishing period is shortened proportionally to the priming flow late, the insensitive dependence of the overshooting on the priming flow rate is favorable to the PSA process, resulting in saving the time for replenishing process.
