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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|Verification, Validation and Uncertainty Quantification
Tuesday, August 22, 2023|1:30–3:10PM EDT|Embassy
Session Chair:
Joshua Kaizer (USNRC)
Session Organizers:
Jinzhao Zhang (Tractebel)
Alternate Chair:
W. David Pointer
Track Organizer:
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Comparative Analyses of the QUENCH Experiments L3HT and ATF-1 on High Temperature Oxidation Mechanisms Using AC²
1:30–1:50PM EDT
Gregor T. Stahlberg (Ruhr-Univ. Bochum), Christoph Bratfisch (Ruhr-Univ. Bochum), Marco K. Koch (Ruhr-Univ. Bochum)
Paper
Simulation of Wall Condensation in a Large Amount of Non-Condensable Gases Condition Using the SPACE Code
1:50–2:10PM EDT
Jong Hyuk Lee (KAERI), Kwi Seok Ha (KAERI), Seung Wook Lee (KAERI)
System Level Modeling of a Generic Pebble Bed High-Temperature Gas-Cooled Reactor (PB-HTGR) with SAM and Griffin
2:10–2:30PM EDT
Zhiee Jhia Ooi (ANL), Ling Zou (ANL), Thanh Hua (ANL), Jun Fang (ANL), Rui Hu (ANL)
Validation of System Analysis Module Axial Mixing Model for Thermal Stratification and Mixing Application in the Upper Plenum of a Liquid Metal Reactor
2:30–2:50PM EDT
Molly Ross (Purdue), Hitesh Bindra (Purdue), Ling Zou (ANL)
Experimental Investigation and Numerical Validation of Natural Convection in Molten Salt
2:50–3:10PM EDT
J. Reis (TAMU), J. Seo (TAMU), Y. Hassan (TAMU)
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