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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.
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2024 ANS Annual Conference
June 16–19, 2024
Las Vegas, NV|Mandalay Bay Resort and Casino
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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
Strontium: Supply-and-demand success for the DOE’s Isotope Program
The Department of Energy’s Isotope Program (DOE IP) announced last week that it would end its “active standby” capability for strontium-82 production about two decades after beginning production of the isotope for cardiac diagnostic imaging. The DOE IP is celebrating commercialization of the Sr-82 supply chain as “a success story for both industry and the DOE IP.” Now that the Sr-82 market is commercially viable, the DOE IP and its National Isotope Development Center can “reassign those dedicated radioisotope production capacities to other mission needs”—including Sr-89.
Gung-Huei Chou, Jyh-Chen Chen
Nuclear Science and Engineering | Volume 127 | Number 2 | October 1997 | Pages 220-229
Technical Paper | doi.org/10.13182/NSE97-A28598
Articles are hosted by Taylor and Francis Online.
An analytical study is conducted of condensation heat transfer characteristics under reflux-cooling modes with both constant temperature and constant heat flux (CHF) at the inner wall of a single vertical tube. The effects of interfacial shear stress and convection on the reflux condensation heat transfer are examined analytically. The results indicate that interfacial shear retards the condensate flow and thickens the liquid film layer, which in turn decreases the condensation heat transfer coefficient (HTC). The dimensionless film thickness and local HTC with zero convection varies with an increase in the interfacial shear and has a remarkable effect on the condensation process, especially with a larger condensation length. However, the film Reynolds number has the opposite effect. Additionally, the interfacial shear thickens the film and retards the liquid flow relatively more distinctly for the CHF case. Finally, compared with the experimental data from previous study, the observed trend of the condensation heat transfer can be reasonably described by the present model at moderate film Reynolds numbers.