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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
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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
Tuesday, November 14, 2023|3:15–5:00PM EST|Columbia 9
Session Chair:
Xingang Zhao (ORNL)
Alternate Chairs:
Izabela Gutowska
Ferry Roelofs (NRG)
Session Organizer:
Xu Wu
The winner of the 2023 ANS Young Professional Thermal Hydraulics Research Competition will be announced after the session around 4:30 PM in the same room.
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Identifying Important Parameters Affecting Fuel Dispersion and Relocation Phenomena Under Loss of Coolant Accident (LOCA) Conditions
3:15–3:35PM EST
Sade Danielle Campos (Oregon State), Trevor Kent Howard (Oregon State), Stephen Yamasaki (Oregon State), Guillaume Mignot (Oregon State), Wade Marcum (Oregon State), Gordon Wissinger (Framatome), Lisa Gerken (Framatome)
Paper
Experimental Investigation of Shell Side Flow Around Twisted Tubes Using Positron Emission Particle Tracking for CFD Validation
3:35–3:55PM EST
Connor Donlan (Virginia Commonwealth Univ.), A. Cabral (Virginia Commonwealth Univ.), C. Wiggins (ORNL), S. Tutwiler (Virginia Commonwealth Univ.), Lane B. Carasik (Virginia Commonwealth Univ.)
Direct Numerical Simulation of a Molten Salt Natural Circulation Loop Using the Spectral Element Method
3:55–4:15PM EST
Tri Nguyen (Penn State), John Barton (Penn State), Casey Emler (Penn State), Elia Merzari (Penn State)
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