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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.”
Hyoung Tae Kim, Hee Cheon No
Nuclear Technology | Volume 119 | Number 1 | July 1997 | Pages 98-104
Technical Note | Heat Transfer and Fluid Flow | doi.org/10.13182/NT77-A35397
Articles are hosted by Taylor and Francis Online.
The improvement of RELAP5/MOD3.1 code predictive capability for steam condensation on an inclined surface is investigated. In modeling the secondary condensers with RELAP5, two problems were encountered with respect to condensation in vertically stacked tube walls: the capability for turbulent film condensation and the effect of the wall node size on the prediction of condensation heat transfer coefficients (HTCs). The code original model based on the Nus-selt model for laminar film condensation is extended to the turbulent film condensation by introducing two previously developed models into the code. The code is further improved to properly take into account the condensation length over many nodings. To eliminate the dependence on the node size in predicting the condensation HTC of the code, film Reynolds numbers at each node are calculated recursively to track the growing condensate film thickness along the condensation length. The modified version is tested under idealized boundary conditions and with the simulation of secondary condensers and is compared with an analytical solution and the original code. It turns out that the simulation results by this modified version are independent of the node size and are in better agreement with the analytical solution than those by the original one.