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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|Methods
Monday, April 22, 2024|3:30–5:15PM PDT|Franciscan D
Session Chair:
Oliver Buss (NEA)
Alternate Chair:
Emily Shemon (ANL)
Session Organizer:
Mathieu Hursin (École Polytechnique Fédérale de Lausanne)
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Multiphysics Simulations of the KRUSTY Criticality Experiment Using BlueCrab
3:30–3:50PM PDT
Yan Cao (ANL), Yinbin Miao (ANL), Kun Mo (ANL), Nicolas Stauff (ANL), Changho Lee (ANL)
Paper
Coupled Multiphysics Modeling of Heat Pipe Microreactors Using Cardinal, BISON, and Sockeye
3:50–4:10PM PDT
M. Eltawila (Univ. Illinois, Urbana-Champaign), A.J. Novak (Univ. Illinois, Urbana-Champaign), Y. Miao (ANL)
Application of Basis Projection Methods to Temperature Distribution Construction in Heat Pipe Microreactor
4:10–4:30PM PDT
Dean Price (Univ. Michigan), Majdi I. Radaideh (Univ. Michigan), Brendan Kochunas (Univ. Michigan)
Multiphysics Simulation of TRISO Fuel Compacts and the Effects of Homogenization
4:30–4:50PM PDT
Aya Hegazy (Univ. Illinois, Urbana-Champaign), April J. Novak (Univ. Illinois, Urbana-Champaign), Rizwan-uddin (Univ. Illinois, Urbana-Champaign)
Thermal-Mechanical Considerations for the Radiantly Integrated TPV-Microreactor System
4:50–5:10PM PDT
Naiki Kaffezakis (Georgia Tech), Dan Kotlyar (Georgia Tech)
Presented by Bailey Painter (Georgia Tech)
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