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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 NISD
Tuesday, June 14, 2022|3:15–5:00PM PDT|Capistrano A
Session Chair:
Aaron S. Epiney (INL)
Session Organizer:
Alternate Chair:
Askin Guler Yigitoglu (ORNL)
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Preliminary Experiment: Quantitative Vapor Observation Through Flow Visualization Under IVR-ERVC Environment
Jun Yeong Jung (KAIST), Yong Hoon Jeong (KAIST)
Paper
Preliminary Design of Spent Fuel Pool Passive Cooling System with a Combination of Heat Pipe and Air Cooling Tower: Evaluation of Thermal Capacity During Normal and Accident Operation
Min Suk Lee (KAIST), Wooseong Park (KAIST), Yong Hoon Jeong (KAIST)
Development of Human-in-the-Loop Digital Twin in Radiation Emergency Evacuation
Younghee Park (Ulsan Nat'l Institute of Science and Technology), Soohyung Park (Ulsan Nat'l Institute of Science and Technology), Namhun Kim (Ulsan Nat'l Institute of Science and Technology)
Determining Emergency Planning Zone Radii for Various Moderators in a Micro-HTGR
Madison S. Ratner (Univ. Tennessee, Knoxville), Edward M. Duchnowski (Univ. Tennessee, Knoxville), Nicholas R. Brown (Univ. Tennessee, Knoxville)
Analysis of Thermal Stratification in Liquid Sodium with MELCOR
Ryan Som (Univ. Wisconsin, Madison), Jun Wang (Univ. Wisconsin, Madison), Michael Corradini (Univ. Wisconsin, Madison)
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