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Division Spotlight
Education, Training & Workforce Development
The Education, Training & Workforce Development Division provides communication among the academic, industrial, and governmental communities through the exchange of views and information on matters related to education, training and workforce development in nuclear and radiological science, engineering, and technology. Industry leaders, education and training professionals, and interested students work together through Society-sponsored meetings and publications, to enrich their professional development, to educate the general public, and to advance nuclear and radiological science and engineering.
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
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.”
Sigitas Rimkevicius, Eugenijus Uspuras
Nuclear Technology | Volume 164 | Number 1 | October 2008 | Pages 97-102
Technical Paper | Icapp '06 | doi.org/10.13182/NT08-A4011
Articles are hosted by Taylor and Francis Online.
The purpose of this paper is to present the results of the experimental investigation of the thermal-hydraulic characteristics for two types of test sections: thin annular pebble beds (i.e., spheres dumped in thin annular slots) and pebble beds placed between cylinders. The experimental results of heat transfer from the spheres and from a cylinder, as well as hydraulic drag for both types of test sections, are presented in this paper. The results of the thin annular pebble bed experiments demonstrate that the maximum heat transfer and hydraulic drag is at the annular slot with the relative width K equal to 1.07 and 1.75 of the sphere diameter. The heat transfer in the internal layers at these values of K is equal to the heat transfer in the internal layers of large (unlimited) rhombic packing. The results of the experimental investigation of pebble beds between cylinders demonstrate that the randomly arranged pebble bed is preferable to the regular rhombic structure from the viewpoints of design simplicity, heat transfer from the cylinder, and drag coefficient.