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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
2025 ANS Annual Conference
June 15–18, 2025
Chicago, IL|Chicago Marriott Downtown
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 Technology
Fusion Science and Technology
Latest News
Webinar: MC&A and safety in advanced reactors in focus
Towell
Russell
Prasad
The American Nuclear Society’s Nuclear Nonproliferation Policy Division recently hosted a webinar on updating material control and accounting (MC&A) and security regulations for the evolving field of advanced reactors.
Moderator Shikha Prasad (CEO, Srijan LLC) was joined by two presenters, John Russell and Lester Towell, who looked at how regulations that were historically developed for traditional light water reactors will apply to the next generation of nuclear technology and what changes need to be made.
Anisia Bornea, Marius Zamfirache, Liviu Stefan, Ioan Stefanescu, Anisoara Preda
Fusion Science and Technology | Volume 67 | Number 2 | March 2015 | Pages 266-269
Proceedings of TRITIUM 2013 | doi.org/10.13182/FST14-T7
Articles are hosted by Taylor and Francis Online.
Cryogenic distillation is the back-end process used in water detritiation technologies with the aim to separate the hydrogen isotopes and concentrate it for further extraction and storage. At ICIT, research towards cryogenic distillation has been approached to develop the technology for heavy water detritiation at CANDU reactors. These results can be also useful for fusion reactors. ICIT has developed a technology for producing heavy water which was completed through a technological transfer to a heavy water plant. With this technology, ICIT has developed a research program to achieve high efficiency ordered packing for the water distillation process. These packings have been promoted at Cernavoda NPP and now equip the heavy water upgrading installations for the CANDU reactors. The packages for water distillation processes were made of phosphorous bronze, being required a very high wettability. Considering on water distillation process similarity, respectively hydrogen distillation, ICIT has started a research program for the development of similar package made by stainless steel, to be used at cryogenic distillation. This paper presents two types of ICIT packages developed for hydrogen distillation and performance data obtained on laboratory scale. In order to determine the characteristics of the package, the installation was operated in the total reflux mode, for different flow rate for the liquid. There were made several experiments considering different operating conditions.