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Aerospace Nuclear Science & Technology
Organized to promote the advancement of knowledge in the use of nuclear science and technologies in the aerospace application. Specialized nuclear-based technologies and applications are needed to advance the state-of-the-art in aerospace design, engineering and operations to explore planetary bodies in our solar system and beyond, plus enhance the safety of air travel, especially high speed air travel. Areas of interest will include but are not limited to the creation of nuclear-based power and propulsion systems, multifunctional materials to protect humans and electronic components from atmospheric, space, and nuclear power system radiation, human factor strategies for the safety and reliable operation of nuclear power and propulsion plants by non-specialized personnel and more.
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2024 ANS Winter Conference and Expo
November 17–21, 2024
Orlando, FL|Renaissance Orlando at SeaWorld
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The Standards Committee is responsible for the development and maintenance of voluntary consensus standards that address the design, analysis, and operation of components, systems, and facilities related to the application of nuclear science and technology. Find out What’s New, check out the Standards Store, or Get Involved today!
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New laws offer nuclear industry incentives for existing power plant uprates
This year, the U.S. nuclear industry received a much-needed economic boost that could help preserve operating nuclear power plants and incentivize upgrades that extend their lifespan and power output.
Signed into law in 2022, the Inflation Reduction Act offers production tax credits (PTCs) for existing nuclear power plants and either PTCs or investment tax credits (ITCs) for new carbon-free generation. These credits could make power uprates—increasing the maximum power level at which a commercial plant may operate—a much more appealing option for utilities.
C. D. Watson, G. A. West, W. F. Schaffer, JR.
Nuclear Science and Engineering | Volume 17 | Number 1 | September 1963 | Pages 149-164
Technical Paper | doi.org/10.13182/NSE63-A17220
Articles are hosted by Taylor and Francis Online.
Experimental mechanical equipment for removing the stainless steel jackets from the liquid-metal-bonded fuels of the Sodium Reactor Experiment (SRE), Fermi, and Hallam reactors was evaluated on a pilot scale. A hydraulic dejacketing method and two alternative methods were tested with spent, NaK-bonded stainless-steel-jacketed fuel from Core 1 of the SRE. This four-year-old fuel, consisting of 2.7% enriched uranium slugs, was exposed to an average irradiation of 675 Mw-day/tonne during a period of two years. It was discharged from the reactor after abnormal temperatures had damaged 30% of the core. About 1.8 metric tonnes of spent Core 1 fuel were dejacketed mechanically at rates up to 9.2 kg of uranium per hour. A production rate 2 to 3 times higher had been predicted from the processing of unirradiated fuel. The hydraulic method, by which it was planned that all fuel would be processed (by expansion of the jackets and expulsion of the slugs) worked with only 16.5% of the fuel. The remainder of the fuel had to be processed by one of the two alternative methods. Dislodgment of fuel slugs from the jackets was extremely difficult because the jacket and some slugs were stuck together by a eutectic alloy of stainless steel-uranium. Also, the irradiated jackets had lost their ductility from the midpoint of a fuel rod to the top and, in addition, showed evidence of carburization, work hardening, sensitization, and embrittlement. Dejacketing of the abnormal SRE Core 1 fuel was accomplished successfully but none of the three dejacketing methods evaluated appeared to be sufficiently versatile to accommodate abnormal fuel and thus cannot be guaranteed as reliable production methods for the liquid-metal-bonded fuels.