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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.
Advances in Thermal Hydraulics (ATH 2022)
Technical Session
Wednesday, June 15, 2022|10:15AM–12:00PM PDT|Redondo
Session Chair:
Minghui Chen
Alternate Chair:
Qiuping Lv
Session Organizer:
W. David Pointer
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Modeling of a Nitrate Salt Natural Circulation Loop
Sheng Zhang (Univ. Michigan), Xiaodong Sun (Univ. Michigan)
Paper
Numerical Methodology for Design and Evaluation of Natural Circulation Systems for MSR Applications
J.S. Narváez Arrúa (Politecnico di Milano), A. Cammi (Politecnico di Milano), S. Lorenzi (Politecnico di Milano), P.R. Rubiolo (Univ. Grenoble Alpes)
Determination of Aspect Ratio Influence on Flow and Heat Transfer Behavior in Twisted Elliptical Tubes for Molten Salt Applications
S. Tutwiler (Virginia Commonwealth Univ.), Lane B. Carasik (Virginia Commonwealth Univ.), Dillon R. Shaver (ANL)
Numerical Investigation of Cartridge Heater Performance Applied to the FASTR Main Heater for Molten Chloride Salts
Nolan Goth (ORNL), Thien Nguyen (ORNL), Kevin Robb (ORNL), Ethan Kappes (ORNL)
Investigating Thermal Hydraulics Performance of a New Test Section Designed for the LSTL FLiNaK Using CFD
Ethan Kappes (ORNL), Thien Duy Nguyen (ORNL), Kevin Robb (ORNL)
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