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Conference Spotlight
2026 ANS Annual Conference
May 31–June 3, 2026
Denver, CO|Sheraton Denver
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Getting back to yes: A local perspective on decommissioning, restart, and responsibility
For 45 years, Duane Arnold Energy Center operated in Linn County, Ia., near the town of Palo and just northwest of Cedar Rapids. The facility, owned by NextEra Energy, was the only nuclear power plant in the state.
In August 2020, a historic derecho swept across eastern Iowa with winds approaching 140 miles per hour. Damage to the plant’s cooling towers accelerated a shutdown that had already been planned, and the facility entered decommissioning soon after, with its fuel removed in October of that year. Iowa’s only nuclear plant had gone off line.
Today the national energy landscape looks very different than it did just six short years ago. Electricity demand is rising rapidly as data centers, artificial intelligence infrastructure, advanced manufacturing, and electrification expand across the country. Reliable, carbon-free baseload power has become increasingly valuable. In that context, Linn County has approved the rezoning necessary to support the recommissioning and restart of Duane Arnold and is actively supporting NextEra’s efforts to secure the remaining state and federal approvals.
Technical Session|Sponsored by THD
Tuesday, June 18, 2024|3:15–5:00PM PDT|Jasmine F
Session Chair:
Dillon R. Shaver (ANL)
Alternate Chair:
Lane B. Carasik (Virginia Commonwealth Univ.)
Session Organizer:
Jun Fang (ANL)
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High-Fidelity Simulations of the Flow Instability in an Eccentric Annular Channel
3:15–3:35PM PDT
Carolina S.B. Dutra (Penn State), Tri Nguyen (Penn State), Elia Merzari (Penn State)
Paper
Update on HFIR Data Informed RANS Turbulence Modeling
3:35–3:55PM PDT
Emilian Popov (ORNL), Nicholas Mecham (NCSU)
Preliminary Computational Fluid Dynamics Analysis on Helical Cruciform Metal Fuel Subchannels for Enhanced Reactor Performance
3:55–4:15PM PDT
Hyeongi Moon (Hanyang Univ.), Minseop Song (Hanyang Univ.)
VERTEX-CFD: A Multiphysics Solver
4:15–4:35PM PDT
Marc-Olivier Delchini (ORNL), Kellis C. Kincaid (ORNL), Doug Stefanski (ORNL), Ryan Glasby (ORNL), Franklin Curtis (ORNL)
Simulations of the Effects of Gap Width on Flow and Heat Transfer Characteristics for Twisted Tape Inserts
4:35–4:55PM PDT
Sierra A. Tutwiler (Virginia Commonwealth Univ.), Lane B. Carasik (Virginia Commonwealth Univ.)
Preliminary LES of Cross Flow in the GOKSTAD Experimental Tube Bundle
4:55–5:15PM PDT
Trevor C. Franklin (Virginia Commonwealth Univ.), Lane B. Carasik (Virginia Commonwealth Univ.)
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