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Conference Spotlight
Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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
September 2025
Nuclear Technology
August 2025
Fusion Science and Technology
Latest News
Deep geologic repository progress—2025 Update
Editor's note: This article has was originally published in November 2023. It has been updated with new information as of June 2025.
Outside my office, there is a display case filled with rock samples from all over the world. It contains a disk of translucent, orange salt from the Waste Isolation Pilot Plant near Carlsbad, N.M.; a core of white-and-bronze gneiss from the site of the future deep geologic repository in Eurajoki, Finland; several angular chunks of fine-grained, gray claystone from the underground research laboratory at Bure, France; and a piece of coarse-grained granite from the underground research tunnel in Daejeon, South Korea.
Technical Session|Sponsored by THD
Monday, June 16, 2025|3:15–5:00PM CDT|Chicago Ballroom A
Session Chair:
Prashant Jain (ORNL)
Alternate Chair:
Jun Liao (Westinghouse Electric Co.)
This session will conclude with a brief THD awards ceremony 5:00-5:15PM CDT
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Analysis of Oval Twisted Helical Tube Heat Exchanger with RELAP5-3D: Effect of Oscillating Wall Temperature
3:15–3:35PM CDT
Scott F. Wahlquist (Idaho State), Ahmed Hamed (INL), Piyush Sabharwall (INL), George Mesina (INL), Palash Bhowmik (INL), Amir Ali (Idaho State)
Paper
Implementation of First Dry-Out Model Into System TH Code Mars-Ks for Helical Coiled SGs of SMRs
3:35–3:55PM CDT
Yujeong Ko (Seoul Nat'l Univ.), Hyoung Kyu Cho (Seoul Nat'l Univ.)
Assessment of MARS-KS Code Using OECD/NEA ATLAS A1.2 Test
3:55–4:15PM CDT
Kyung-Won Lee (Korea Institute of Nuclear Safety), Andong Shin (Korea Institute of Nuclear Safety)
Assessment of TRACE Code for SLB Accompanied by SGTR
4:15–4:35PM CDT
Seung Hun Yoo (Korea Institute of Nuclear Safety), Yong Seok Choi (Korea Institute of Nuclear Safety)
TRACE Simulation of Experiments Related to Two-phase Internal Circulation in a Two-Dimensional Channel
4:35–4:55PM CDT
Yang Zhao (Purdue Univ.), Yunlin Xu (Purdue Univ.), Mamoru Ishii (Purdue Univ.), Shawn Marshall (U.S. Nuclear Regulatory Commission)
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