ANS is committed to advancing, fostering, and promoting the development and application of nuclear sciences and technologies to benefit society.
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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
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
BWXT will scout potential TRISO fuel production sites in Wyoming
BWX Technologies Inc. announced today that its Advanced Technologies subsidiary has signed a cooperation agreement with the state of Wyoming to evaluate locations and requirements for siting a potential new TRISO nuclear fuel fabrication facility in the state.
Prodyot Roy, Douglas N. Rodgers
Nuclear Technology | Volume 12 | Number 4 | December 1971 | Pages 388-392
Technical Paper | Analysis | doi.org/10.13182/NT71-A30989
Articles are hosted by Taylor and Francis Online.
Monitoring of hydrogen in liquid sodium with a diffusion tube type hydrogen detector has recently become of interest in the liquid metal fast breeder reactor (LMFBR) development program. The present investigation was undertaken to characterize a diffusion type detector and to study sodium-hydrogen chemistry with the aid of the detector and gas chromatography. The study was carried out in a cold-trapped pumped sodium loop. It was observed that the activity of hydrogen in sodium and in the cover gas is controlled by the temperature of the cold trap. This study also showed that at lower concentrations of hydrogen (∼<2 ppm), the activity of hydrogen in sodium decreases with increasing temperature, which is believed to be due to the interaction between oxygen and hydrogen. However, at higher hydrogen concentrations (∼>2 ppm), the activity of hydrogen is independent of temperature. Finally, it was observed that the permeation of hydrogen dissolved in sodium through a stainless-steel membrane is a diffusion controlled process.