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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
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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Nuclear Science and Engineering
April 2024
Nuclear Technology
Fusion Science and Technology
February 2024
Latest News
Lightbridge announces first U-Zr fuel rod samples extruded at INL
Lightbridge Corporation announced today that it has reached “a critical milestone” in the development of its extruded solid fuel technology. Coupon samples using an alloy of zirconium and depleted uranium—not the high-assay low-enriched uranium (HALEU) that Lightbridge plans to use to manufacture its fuel for the commercial market—were extruded at Idaho National Laboratory’s Materials and Fuels Complex.
M. Glugla, T.L. Le, S. Gross, D. Niyongabo, R. Lsser, K.H. Simon
Fusion Science and Technology | Volume 41 | Number 3 | May 2002 | Pages 969-973
Purification and Chemical Process | Proceedings of the Sixth International Conference on Tritium Science and Technology Tsukuba, Japan November 12-16, 2001 | doi.org/10.13182/FST02-A22729
Articles are hosted by Taylor and Francis Online.
The principal techniques developed by different research groups for the detritiation of primary gaseous wastes are altogether based on processes with multiple stages comprising at least one step involving heterogeneously catalyzed chemical reactions. While the permeation of hydrogen isotopes through palladium/silver membranes combined with heterogeneously catalyzed reactions were proven to be particularly suitable for highly contaminated gases, isotopic swamping in a counter current mode is the method of choice in ITER for the final detritiation and recovery of residual amounts of tritium. Since the catalyst employed to promote the isotope exchange reactions should not support methanation of carbon monoxide and carbon dioxide an attempt was made to design a highly selective exchange catalyst. Amongst the catalysts screened with methane - deuterium exchange and carbon oxide - methanation as test reactions a high temperature reduced palladium/silica (SiO2) catalyst was found to match the selectivity requirements. However, even though the palladium/silica catalyst shows very little activity for methanation, carbon monoxide was found to obstruct the isotope exchange reaction, whereas carbon dioxide does not show this unwanted effect.