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Division Spotlight
Operations & Power
Members focus on the dissemination of knowledge and information in the area of power reactors with particular application to the production of electric power and process heat. The division sponsors meetings on the coverage of applied nuclear science and engineering as related to power plants, non-power reactors, and other nuclear facilities. It encourages and assists with the dissemination of knowledge pertinent to the safe and efficient operation of nuclear facilities through professional staff development, information exchange, and supporting the generation of viable solutions to current issues.
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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May 2024
Nuclear Technology
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Latest News
Framatome signs contracts with Sizewell C
French nuclear developer Framatome is slated to deliver key equipment for Sizewell C Ltd.’s two large reactors planned for the United Kingdom’s Suffolk coast.
The agreement, reportedly worth multiple billions of euros, was announced this week and will involve Framatome from the design phase until commissioning. The company also agreed to a long-term fuel supply deal. Framatome is 80.5 percent owned by France’s EDF and 19.5 percent owned by Mitsubishi Heavy Industries.
C. Tompkins, M. Corradini, M. Anderson
Nuclear Technology | Volume 196 | Number 2 | November 2016 | Pages 346-354
Technical Paper | doi.org/10.13182/NT16-26
Articles are hosted by Taylor and Francis Online.
A research team at the University of Wisconsin has constructed a 1/4-scale experimental facility to study natural circulation cooling in an air-cooled reactor cavity cooling system (ARCCS) for decay heat removal. The ARCCS uses the principle of fluid buoyancy to induce a flow of air through multiple heated risers. This flow is used to remove decay heat from the reactor pressure vessel (RPV) by radiative and convective heat transfer to the risers that surround the RPV. During normal operation of a high-temperature reactor, this system is designed to protect the reactor cavity structures from excessive heat loads. The ARCCS experimental facility is equipped with new distributed temperature sensors designed by Luna Inc. The sensors are distributed optical fiber sensors that can measure a change in temperature from their initial state every 1.25 mm along a 10-m fiber at a maximum rate of 24 Hz. These fibers are standard communication-grade fibers, which are flexible and can be orientated in whatever shape needed to collect data, based on what the facility dictates. The standard available coatings can allow for continuous operation at temperatures of up to 300°C before degradation; however, the silica fiber itself can be taken as high as 700°C. The data from the fibers can be used to analyze the temperature distribution of the air in the ARCCS as it mixes and vents out of the system. The data produced from these fibers may prove to be useful for validation of the modeling of natural-circulation phenomena and the mixing of buoyancy-dominated flows with greater resolution.