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Division Spotlight
Thermal Hydraulics
The division provides a forum for focused technical dialogue on thermal hydraulic technology in the nuclear industry. Specifically, this will include heat transfer and fluid mechanics involved in the utilization of nuclear energy. It is intended to attract the highest quality of theoretical and experimental work to ANS, including research on basic phenomena and application to nuclear system design.
Meeting Spotlight
International Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering (M&C 2025)
April 27–30, 2025
Denver, CO|The Westin Denver Downtown
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
May 2025
Nuclear Technology
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Latest News
TerraPower begins U.K. regulatory approval process
Seattle-based TerraPower signaled its interest this week in building its Natrium small modular reactor in the United Kingdom, the company announced.
TerraPower sent a letter to the U.K.’s Department for Energy Security and Net Zero, formally establishing its intention to enter the U.K. generic design assessment (GDA) process. This is TerraPower’s first step in deployment of its Natrium technology—a 345-MW sodium fast reactor coupled with a molten salt energy storage unit—on the international stage.
Technical Session|Sponsored by RPD
Wednesday, December 1, 2021|12:30–2:15PM EST |Gunston
Session Chair:
Massimiliano Fratoni
Session Organizer:
Alternate Chair:
Pavel V. Tsvetkov
Student Assistant:
Brison Cowan
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An Investigation of Three-Batch Fuel Management in a Natural Circulation Soluble Boron Free SMR
12:35–12:55PM EST
Steven Wijaya (KAIST), Xuan Ha Nguyen (KAIST), Yonghee Kim (KAIST)
Paper
Presentation Video (Visible to Attendees)
Three-Batch Soluble-Boron-Free ATOM Core Design with Pan-Shape CSBA
12:55–1:15PM EST
Xuan Ha Nguyen (KAIST), Steven Wijaya (KAIST), Yonghee Kim (KAIST)
Molten Salt Reactor Kinetics in Zero Power Approximation
1:15–1:35PM EST
Visura Pathirana (Univ. of Tenn., Knoxville), Chelsea Fontaine-Holl (Univ. of Tenn., Knoxville), Ondrej Chvala (Univ. of Tenn., Knoxville)
Independent Assessment of Transformational Challenge Reactor Fuel Lattice
1:35–1:55PM EST
Yeongshin Jeong (MIT), Wei Li (MIT), Koroush Shirvan (MIT)
Alternate Design of the Bottom Reflector of the Transformational Challenge Reactor
1:55–2:15PM EST
A. Talamo (ANL), S.N.P. Vegendla (ANL), A. Bergeron (ANL), F. Heidet (ANL), B. Ade (ORNL), B.R. Betzler (ORNL)
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