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Conference Spotlight
2025 ANS Winter Conference & Expo
November 9–12, 2025
Washington, DC|Washington Hilton
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
November 2025
Nuclear Technology
October 2025
Fusion Science and Technology
Latest News
NEA report calls for more accurate data on SNF heat decay
The OECD Nuclear Energy Agency has issued a report calling for more-detailed information on tracking the decay heat of spent nuclear fuel from light water reactors. According to the NEA, the report highlights the increasing importance of accurate decay heat estimations due to evolving fuel characteristics, including higher initial fuel enrichment, increased burn-up rates, and extended reactor cycle lengths.
The report, Summary of the NEA Assessment on Spent Nuclear Fuel Decay Heat for Light Water Reactors, summarizes the findings of a subgroup of the NEA’s Working Party on Nuclear Criticality Safety (WPNCS), which ran from January 2022 to January 2024.
Technical Session|Sponsored by THD
Wednesday, November 16, 2022|3:15–5:00PM MST|Sonoran 6
Session Chair:
Donna P. Guillen (INL)
Session Organizer:
Alternate Chair:
Sunming Qin (INL)
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Experimental Study of the Thermal Behavior of Sodium Heat Pipe with Liquid Overfilling
3:15–3:35PM MST
Dong Hun Lee (Ulsan Nat'l Institute Science and Technology), In Cheol Bang (Ulsan Nat'l Institute Science and Technology)
Paper
Steady-State Computational Fluid Dynamics Analysis of a Quarter-Core Liquid Metal-Hydride Cooled Microreactor
3:35–3:55PM MST
Kaeley Stevens (Oregon State), Izabela Gutowska (Oregon State), Derick Botha (NuScale Power)
Using PIRT to Accelerate the Development of High Temperature Heat Pipe for eVinci Micro-Reactor
3:55–4:15PM MST
Jun Liao (Westinghouse Electric Co.), Michael J. Patterson (Westinghouse Electric Co.), Michael A. Shockling (Westinghouse Electric Co.)
Design Optimization of Gap Distance for the Annular Wick Heat Pipe
4:15–4:35PM MST
Joseph Seo (TAMU), Daegeun Kim (TAMU), Hansol Kim (TAMU), Yassin A. Hassan (TAMU)
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