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Division Spotlight
Thermal Hydraulics
The division provides a forum for focused technical dialogue on thermal hydraulic technology in the nuclear industry. Specifically, this will include heat transfer and fluid mechanics involved in the utilization of nuclear energy. It is intended to attract the highest quality of theoretical and experimental work to ANS, including research on basic phenomena and application to nuclear system design.
Meeting Spotlight
2024 ANS Annual Conference
June 16–19, 2024
Las Vegas, NV|Mandalay Bay Resort and Casino
Standards Program
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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Nuclear Science and Engineering
June 2024
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Latest News
Terrestrial Energy, Schneider partner on molten salt reactor
Terrestrial Energy and Schneider Electric are teaming to deploy Terrestrial Energy's integral molten salt reactor (IMSR) to provide zero-emission power to industrial facilities and large data centers.
The companies signed a memorandum of understanding in April to jointly develop commercial opportunities with high-energy users looking for reliable, affordable, and zero-carbon baseload supply. Terrestrial Energy said that working with Schneider “offers solutions to the major energy challenges faced by data center operators and many heavy industries operating a wide range of industrial processes such as hydrogen, ammonia, aluminum, and steel production.”
Richard M. Bidwell
Nuclear Science and Engineering | Volume 18 | Number 4 | April 1964 | Pages 426-434
Technical Paper | doi.org/10.13182/NSE64-A18760
Articles are hosted by Taylor and Francis Online.
Chemical behavior of fission products is predicted for a “dynamic core” fast reactor, where the fuel is pumped through an outside loop by the coolant. For a 7.5 at % Pu/25 at % Co/67.5 at % Ce alloy, the various fission products are classified as sodium-extractable, fuel-soluble, precipitating, and rare gases. Evidence predicting the behavior of each class is presented. The rates of extraction of removable fission products are estimated for different modes of operation. Extractable fission product atoms are expected to remain in the fuel phase for only a few seconds. Sixty percent of all of the fission product atoms formed remain in solution in the fuel phase, and occupy a volume (∼35% of that of all fission products) roughly equal to that of the Pu consumed. The consumption of the initial inventory of Pu would require the gradual addition of 110% of the original amount of Pu, of which 3% is required to compensate for poisoning. The effective chemical composition of the fuel would be little changed during “100% burn-up.” A dynamic-core fast reactor can be operated for several years as a continuous chemical system at an economic burn-up rate.