ANS is committed to advancing, fostering, and promoting the development and application of nuclear sciences and technologies to benefit society.
Explore the many uses for nuclear science and its impact on energy, the environment, healthcare, food, and more.
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
Utility Working Conference and Vendor Technology Expo (UWC 2024)
August 4–7, 2024
Marco Island, FL|JW Marriott Marco Island
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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Latest News
Oklo completes end-to-end demonstration of advanced fuel recycling
Oklo Inc. has announced that it has completed the first end-to-end demonstration of its advanced fuel recycling process as part of an ongoing $5 million project in collaboration with Argonne and Idaho National Laboratories. Oklo’s goal: scaling up its fuel recycling capabilities to deploy a commercial-scale recycling facility that would increase advanced reactor fuel supplies and enhance fuel cost effectiveness for its planned sodium fast reactors.
Almir Fernandes, Sudarshan K. Loyalka
Nuclear Technology | Volume 113 | Number 2 | February 1996 | Pages 155-166
Technical Paper | Nuclear Reactor Safety | doi.org/10.13182/NT96-A35185
Articles are hosted by Taylor and Francis Online.
The CONTAIN code is an integrated code for predicting the containment behavior (chemical, physical, and radiological) in a severe accident. It models the thermal hydraulics as well as the aerosol and fission products behavior inside the containment. There are four aerosol deposition mechanisms modeled in the code: settling, diffusion to surfaces, thermophoresis, and diffusiophoresis. In general, the settling and diffusion are the most important. A comparison of the CONTAIN deposition rate expression with a general and more accurate rate expression, however, shows that for most geometries, the code expression overestimates the deposition of small particles, mainly because of an inadequate assumption regarding the dependence of the thickness of the boundary layer on particle size. For some specific geometries, the expression can also overestimate deposition of large particles. The general and more accurate expression is implemented in the CONTAIN code for the cubic and spherical geometries for a test problem. The original and the modified versions of the CONTAIN code are found to yield different results for the suspended aerosol mass. The differences depend on other aerosol processes such as coagulation and also on geometry.