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Conference Spotlight
2026 ANS Annual Conference
May 31–June 3, 2026
Denver, CO|Sheraton Denver
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Latest News
NRC approves TerraPower construction permit
Today, the Nuclear Regulatory Commission announced that it has approved TerraPower’s construction permit application for Kemmerer Unit 1, the company’s first deployment of Natrium, its flagship sodium fast reactor.
This approval is a significant milestone on three fronts. For TerraPower, it represents another step forward in demonstrating its technology. For the Department of Energy, it reflects progress (despite delays) for the Advanced Reactor Demonstration Program (ARDP). For the NRC, it is the first approval granted to a commercial reactor in nearly a decade—and the first approval of a commercial non–light water reactor in more than 40 years.
Technical Session|Severe Accidents
Tuesday, August 22, 2023|1:30–3:10PM EDT|Fairchild East/West
Session Chair:
Martina Adorni (NEA)
Alternate Chair:
Mitchell T. Farmer
Session Organizer:
David L. Luxat
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Preliminary Study on Melt Spreadability in Ex-Vessel Core Catcher Under Dry Condition
1:30–1:50PM EDT
Byung Jo Kim (KEPCO Engineering and Construction Co.), Dae Hyung Lee (KEPCO Engineering and Construction Co.), Sun Hong Yoon (KEPCO Engineering and Construction Co.)
Paper
Analysis of Corium Coolability in MCCI Conditions for Two Types of Concrete, Using ASTEC Calculations
1:50–2:10PM EDT
C. Bouillet (IRSN)
Simplified Model for One-Dimensional Ex-Vessel Corium Coolability
2:10–2:30PM EDT
Jaehoon Jung (KAERI), Seokgyu Jeong (KAERI)
Transient Cooling Investigation of a Conceptual Core Catcher Design with Embedded Cooling Tubes Using a GOTHIC 3D Model
2:30–2:50PM EDT
Zhuo Liu (China Nuclear Power Engineering Co.), Wei Li (China Nuclear Power Engineering Co.), Qiang Guo (China Nuclear Power Engineering Co.), Yidan Yuan (China Nuclear Power Engineering Co.), Ningxi Jia (China Nuclear Power Engineering Co.), Yu Jin (China Nuclear Power Engineering Co.), Weimin Ma (Royal Institute of Technology)
Presentation Video (Visible to Attendees) — pre-recorded presentation video
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