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Conference Spotlight
2026 ANS Annual Conference
May 31–June 3, 2026
Denver, CO|Sheraton Denver
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Nuclear Science and Engineering
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Nuclear Technology
Fusion Science and Technology
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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
Monday, July 22, 2024|10:00–11:50AM CDT|University Room AB
Session Chair:
Dina Yuryev (Commonwealth Fusion Systems)
Alternate Chair:
Paul W. Humrickhouse
Session Organizer:
Jan W. Coenen
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Developing an Experimental and Computational Process to Characterize Boron Transport in WEST
10:00–10:20AM CDT
S.R. Kosslow (University of Tennesse, Knoxville), A. Grosjean (Univ. Tennessee, Knoxville), D.C. Donovan (Univ. Tennessee, Knoxville), C. Johnson (ORNL), A. Diaw (ORNL), R. Lunsford (Princeton Plasma Physics Laboratory), A. Gallo (CEA), E. Bernard (CEA), J. D. Duran (ORNL), K. Woller (MIT), N. Fedorczak (CEA), J. P. Gunn (CEA), E. A. Unterberg (ORNL)
Paper
Presentation Slides (Visible to Attendees)
Design Considerations for Main-Wall Protection Limiters in Diverted Tokamaks
10:20–10:45AM CDT
E.A. Unterberg (ORNL), J.H. Nichols (ORNL), P.C. Stangeby (Univ. Toronto), T. Abrams (General Atomics), A. Dvorak (ORNL), K. Borowiec (ORNL), J. Rapp (ORNL), S.A. Zamperini (General Atomics)
Comparison of Two Open-Surface Divertor Designs: Fast versus Slow Li Flow
10:45–11:05AM CDT
Yuchen Jiang (ORNL), Sunday Aduloju (ORNL), Sergey Smolentsev (ORNL)
Verification of RANS Simulations of the T-tube Modular Divertor using Large Eddy Simulations of Impinging Turbulent Plane Jets
11:05–11:25AM CDT
M. Lanahan (Georgia Tech), S.I. Abdel-Khalik (Georgia Tech), M. Yoda (Michigan State Univ.)
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