ANS is committed to advancing, fostering, and promoting the development and application of nuclear sciences and technologies to benefit society.
Explore the many uses for nuclear science and its impact on energy, the environment, healthcare, food, and more.
Division Spotlight
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.
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!
Latest Magazine Issues
Jul 2024
Jan 2024
Latest Journal Issues
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.”
Emily Saopraseuth, Nicholas Wienhold (Emerson), Eoin Butler, Sofia Guerra, Heidy Khlaff (Adelard)
Proceedings | Nuclear Plant Instrumentation, Control, and Human-Machine Interface Technolgies (NPIC&HMIT 2019) | Orlando, FL, February 9-14, 2019 | Pages 1548-1557
This paper describes the Class 1 assessment of the Rosemount 3051 Pressure Transmitter and the Class 2 assessment of the Rosemount 644 Temperature Transmitter using Emphasis at SIL 3 and 2 respectively. Emerson has pursued many approvals and certifications on these transmitter platforms. The audit for each of these assessments is unique and probes information at varying levels of detail. As compared to other approvals and certifications audits, the Emphasis assessment is a much more productive and in-depth review of design and project materials. The assessment is focused on reviewing quality procedures, design and project artefacts that prove practical engineering practices, and processes that would lead to good product design. This paper describes Emerson’s approach to the assessment. For this assessment, Emerson answered the over 300 assessment questions and provided over 150 archived documents as evidence for each individual product. Throughout the assessment, Emerson’s knowledge of IEC 61508, quality standards, product development processes and software engineering practices showed that, as a smart device manufacturer, Emerson is approaching design processes and procedures with the necessary rigor to produce devices capable of meeting the most stringent requirements.