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The mission of the Decommissioning and Environmental Sciences (DES) Division is to promote the development and use of those skills and technologies associated with the use of nuclear energy and the optimal management and stewardship of the environment, sustainable development, decommissioning, remediation, reutilization, and long-term surveillance and maintenance of nuclear-related installations, and sites. The target audience for this effort is the membership of the Division, the Society, and the public at large.
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2025 ANS Annual Conference
June 15–18, 2025
Chicago, IL|Chicago Marriott Downtown
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AI and productivity growth
Craig Piercycpiercy@ans.org
This month’s issue of Nuclear News focuses on supply and demand. The “supply” part of the story highlights nuclear’s continued success in providing electricity to the grid more than 90 percent of the time, while the “demand” part explores the seemingly insatiable appetite of hyperscale data centers for steady, carbon-free energy.
Technically, we are in the second year of our AI epiphany, the collective realization that Big Tech’s energy demands are so large that they cannot be met without a historic build-out of new generation capacity. Yet the enormity of it all still seems hard to grasp.
or the better part of two decades, U.S. electricity demand has been flat. Sure, we’ve seen annual fluctuations that correlate with weather patterns and the overall domestic economic performance, but the gigawatt-hours of electricity America consumed in 2021 are almost identical to our 2007 numbers.
Shunsuke Uchida, Motoaki Utamura, Hideo Yusa, Hideo Maki
Nuclear Technology | Volume 40 | Number 1 | August 1978 | Pages 79-88
Technical Paper | Fuel | doi.org/10.13182/NT78-A26701
Articles are hosted by Taylor and Francis Online.
To improve the efficiency of in-core wet sipping leaker detection, a warm water injection method was developed. The method was characterized by pouring warm water into the channel box through the sipper cap and replacing all the water originally present with the poured water. Basic experiments were performed to determine the efficiency of the method. Mockup experiments were undertaken to confirm this and to ascertain the effects of operational conditions on the efficiency. These were done by the sipping procedures by means of a facility that included a full-scale 8 × 8 simulated fuel assembly. It was demonstrated that (a) the efficiency of detection for bottom leaks increased about a hundred times over the commonly used method, and (b) the increase in efficiency came from flattening the temperature distribution along the axial direction and exciting the natural convection flow in the whole assembly to promote the fission product transfer. Optimal operational conditions for the method were also proposed as follows:
