ANS is committed to advancing, fostering, and promoting the development and application of nuclear sciences and technologies to benefit society.
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Division Spotlight
Robotics & Remote Systems
The Mission of the Robotics and Remote Systems Division is to promote the development and application of immersive simulation, robotics, and remote systems for hazardous environments for the purpose of reducing hazardous exposure to individuals, reducing environmental hazards and reducing the cost of performing work.
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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Jul 2024
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Nuclear Science and Engineering
August 2024
Nuclear Technology
Fusion Science and Technology
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.”
Yanhua Zheng, Hanliang Bo, Duo Dong
Nuclear Technology | Volume 157 | Number 2 | February 2007 | Pages 208-214
Technical Paper | Nuclear Plant Operations and Control | doi.org/10.13182/NT07-A3813
Articles are hosted by Taylor and Francis Online.
A new type of control rod driving system, the hydraulic control rod driving system (HCRDS) with a hole-hole step cylinder, has been applied in the 5-MW nuclear heating reactor of Tsinghua University for several years and has performed well all along. A second-generation HCRDS has been developed based on operational experience, and further improvements are being carried out.This paper focuses on the first-generation HCRDS, analyzing in detail its working performance in an unstable state. The control rod stability after minute perturbation and the operation of the control rod in an incline state have been theoretically calculated. The study proves the self-lock design characteristic of the system. The calculated results also indicate that the control rod step-up, step-down, and scram operations function properly.The theoretical analysis proves the HCRDS reliable and safe, establishing a baseline for further research and development for wide use in portable seawater distillation systems.