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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Nuclear Science and Engineering
August 2024
Nuclear Technology
Fusion Science and Technology
Latest News
Vogtle-3 shuts down for valve issue
One of the new Vogtle units in Georgia was shut down unexpectedly on Monday last week for a valve issue that has since been investigated and repaired. According to multiple local news outlets, Georgia Power reported on July 17 that Unit 3 was back in service.
Southern Company spokesperson Jacob Hawkins confirmed that Vogtle-3 went off line at 9:25 p.m. local time on July 8 “due to lowering water levels in the steam generators caused by a valve issue on one of the three main feedwater pumps.”
Masabumi Nishikawa, Mitsuru Uetake, Ken-ichi Tanaka, Tomofumi Shiraishi
Fusion Science and Technology | Volume 28 | Number 3 | October 1995 | Pages 717-722
Tritium Processing | Proceedings of the Fifth Topical Meeting on Tritium Technology in Fission, Fusion, and Isotopic Applications Belgirate, Italy May 28-June 3, 1995 | doi.org/10.13182/FST95-A30489
Articles are hosted by Taylor and Francis Online.
The tritium bred in a DT fusion reactor is taken out of its blanket using helium sweep gas. The cryosorption bed using molecular sieves or activated carbon at liquid nitrogen temperature is attractive for recovery of this tritium from the view point of adsorption capacity and pressure of tritium at release. The mass transfer coefficients required to predict the breakthrough curve are discussed in this paper. The surface difiusivity included in one of them is quantitated. Its value is dependent on the adsorption site. The rate controlling step changes with the equilibrium partial pressure of the hydrogen isotope, because the mass transfer coefficient representing the intraparticle diffusion decreases with increasing equilibrium pressure. The mass transfer coefficients in desorption are estimated to be the same as those in adsorption.