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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, November 17, 2020|12:00–2:10PM EST
Session Chair:
Rui Hu
Session Organizer:
Alternate Chair:
Ling Zou
Staff Producer:
Janet Davis (American Nuclear Society)
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Validation of the SAM Multi-dimensional Flow Model for Thermal Mixing and Stratification Phenomena
Daniel Nunez (Argonne National Laboratory), Rui Hu (Argonne National Laboratory), Ling Zou (Argonne National Laboratory)
Paper
CARLITA Code Benchmarking with SAM for LBE Natural Circulation Flow
Mitch T. Farmer (ANL), Acacia J. Brunett (Argonne National Laboratory), Daniel O'Grady (Argonne National Laboratory), Adam J. Dix (Purdue University)
VALIDATION OF THE SAM STEADY-STATE MODEL OF THE FAST FLUX TEST FACILITY
Yassin A. Hassan (Texas A&M University), Rodolfo Vaghetto (Texas A&M University), Brent P. Hollrah (Texas A&M University)
Code Enhancement to SAM Multi-scale/multi-dimensional Heat Transfer Modeling Capabilities
Brent Hollrah (Argonne National Laboratory), Rui Hu (Argonne National Laboratory), Guojun Hu (Argonne National Laboratory), Ling Zou (Argonne National Laboratory)
Modelling a Transient in Liquid Fuel Microreactor with MOOSE-SAM MultiApp System
Rui Hu (Argonne National Laboratory), Kun Mo (Argonne National Laboratory), Yinbin Miao (Argonne National Laboratory), Tingzhou Fei (Argonne National Laboratory)
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