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Division Spotlight
Young Members Group
The Young Members Group works to encourage and enable all young professional members to be actively involved in the efforts and endeavors of the Society at all levels (Professional Divisions, ANS Governance, Local Sections, etc.) as they transition from the role of a student to the role of a professional. It sponsors non-technical workshops and meetings that provide professional development and networking opportunities for young professionals, collaborates with other Divisions and Groups in developing technical and non-technical content for topical and national meetings, encourages its members to participate in the activities of the Groups and Divisions that are closely related to their professional interests as well as in their local sections, introduces young members to the rules and governance structure of the Society, and nominates young professionals for awards and leadership opportunities available to members.
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.”
Yacine Aounallah, Paul Coddington
Nuclear Technology | Volume 128 | Number 2 | November 1999 | Pages 225-232
Technical Paper | RETRAN | doi.org/10.13182/NT99-A3027
Articles are hosted by Taylor and Francis Online.
A void fraction validation study is undertaken for the VIPRE-02 code due to the importance of void feedback when the code is coupled to the neutronic code ARROTTA in the new code package CORETRAN. This first stage is based on the steady-state boiling water reactor void fraction data obtained from the Nuclear Power Energy Corporation (Japan) experimental program.The code bundle-averaged void prediction is found to be adequate for the different assembly types studied, but at the subassembly level, the code underpredicts substantially the void for regions with low power-to-flow ratios. This is believed to be due to the lack of a lateral void drift model. The importance of these regional void underpredictions is negligible for the standard 8 x 8 assembly, but their impact on neutronics still needs assessing for the newer assembly types.